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"Pada penelitian ini telah dikembangkan komposit berbasis polimer polipropilena (PP) dengan penguat serat alam yaitu serat sisal dan serat sabut kelapa. Bentuk morfologi serat alam divariasikan dalam bentuk bulk (chopped) dan berbentuk single of fiber melalui proses pulping. Jenis polimer yang digunakan adalah homopolimer dan kopolimer. Komposit yang dihasilkan dikarakterisasi untuk memperoleh komposit dengan kekuatan optimum tanpa mengesampingkan nilai ketangguhan-nya. Perlakuan panas dilakukan terhadap komposit serat alam pada suhu 70°, 100° dan 130°C selama 20 jam.Dari penelitian ini diketahui bahwa sifak mekanis polimer PP dapat ditingkatkan dengan penambahan serat alam. Serat sisal memiliki sifat mekanis yang lebih baik jika dibandingkan dengan serat sabut kelapa, hal ini dibuktikan dengan nilai kuat tarik, struktur mikro, derajat kristalinitas dan stabilitas terhadap panas. Dari analisa FE-SEM, perubahan bentuk serat menjadi pulp dapat meningkatkan dispersi serat dalam matrik polimer, namun hal ini hanya meningkatkan kuat tarik dan kuat tekuk. Nilai kuat tarik, kuat tekuk, modulus dan impak komposit pada penelitian ini dapat ditingkatkan dengan tetap mempertahankan bentuk morfologi bulk (chopped) dari serat alam dengan penambahan EPDM 2.5% berat dan perlakuan panas pada 130°C. Mekanisme peningkatan ketangguhan komposit disebabkan oleh pembentukan kristal β-phase PP serta mekanisme fiber pull out dari serat alam bentuk chopped pada matrik polimer. Polimer homopolimer memberikan performa komposit yang lebih baik jika dibandingkan dengan kopolimer.

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The aim of this study is to develop polypropylene (PP) composite reinforced with sisal and coconut fibers. The effect of fiber morphology in term of bundles (chopped) and single of fibers (pulp), as well as types of polymer (homopolymer and copolymer) were manufactured to obtain high strength and high toughness composites. Composites were annealed at 70°, 100° and 130°C.

From this study, it is reported that sisal fiber is superior to coconut fibers as reinforcing agents. It is not necessary to convert the bundles into pulp. Optimum composite could be obtained by annealed the composites of 40% weight sisal chopped reinforced PP at 130°C by addition of EPDM 2.5% wt in the presence of PP-g-MA 5% wt. The formation of β-phase crystallization of PP revealed from XRD analysis and fiber pull out mechanism take responsible for the improvement of the high toughness of composite. Homopolymer gave best performance as matrix compared to copolymer for strength and toughness composites."

"[Pada penelitian ini, serat ijuk dihancurkan dan diayak ukuran 40 # setelah itu serat ijuk diberi perlakuan kimia dengan NaOH 2 % selama 1 jam, KMnO4 0,1 N selama 15 menit, dan NaClO 5 % selama 5 jam dengan tujuan mendapatkan selulosa kristalin. Setelah itu dilakukan proses pencampuran kering (hotmelt mixing) antara polipropilen dengan serat ijuk hasil perlakuan kimia dengan 7,5 % volum serat ijuk terhadap polipropilen dengan variabel temperatur 160°C, 165°C, dan 170°C dan variabel waktu pencampuran 15 menit dan 20 menit. Setelah itu dilakukan pengujian uji FTIR buat serat, sedangan buat komposit adalah uji tarik, uji STA, uji XRD, dan uji FE-SEM hal ini dilakukan untuk mendapatkan sifat kristalinitas dan mekanik dari komposit polipropilen ini. Hasil penelitian menunjukkan bahwa serat ijuk hasil perlakuaan lebih kristalin dari pada serat ijuk tanpa perlakukan, polipropilen dengan serat ijuk hasil perlakuaan kimia cukup kompatibel terhadap polipropilen, dari penelitian didapatkan sifat kristalinitas terbaik pada variabel 165°C selama 20 menit. Dan yang memiliki sifat kekuatan tarik paling baik adalah variabel 170°C selama 20 menit, sedangkan yang memiliki % elongasi paling baik adalah dengan variabel 160°C 20 menit.

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In this work, palm fiber crushed and sieved size 40 # after the palm fiber chemically treated with 2% NaOH for 1 hour, 0.1 N KMnO4 for 15 minutes, and 5% NaClO for 5 hours in order to obtain crystalline cellulose. Once that is done the dry mixing (hotmelt mixing) between polypropylene and palm fiber chemical treatment results with 7.5% volume of the palm fiber and polypropylene with a variable temperature of 160°C, 165°C and 170°C and a variable time mixing 15 minutes and 20 minutes. After it was examined FTIR test for fiber, while the composite is made tensile test, STA test, XRD test and FE-SEM test this is done to obtain crystallinity and mechanical properties of polypropylene composites this. The results show that fiber perlakuaan results more crystalline fibers than untreated palm fiber, polypropylene and palm fiber chemistry results treatment compatible enough to polypropylene, crystallinity of the research showed the best properties on the variable 165 ° C for 20 minutes. And who has the most excellent tensile strength properties are variable 170 ° C for 20 minutes, while the best of % elongation is at a variable 160 ° C 20 minutes.;In this work, palm fiber crushed and sieved size 40 # after the palm fiber chemically treated with 2% NaOH for 1 hour, 0.1 N KMnO4 for 15 minutes, and 5% NaClO for 5 hours in order to obtain crystalline cellulose. Once that is done the dry mixing (hotmelt mixing) between polypropylene and palm fiber chemical treatment results with 7.5% volume of the palm fiber and polypropylene with a variable temperature of 160°C, 165°C and 170°C and a variable time mixing 15 minutes and 20 minutes. After it was examined FTIR test for fiber, while the composite is made tensile test, STA test, XRD test and FE-SEM test this is done to obtain crystallinity and mechanical properties of polypropylene composites this. The results show that fiber perlakuaan results more crystalline fibers than untreated palm fiber, polypropylene and palm fiber chemistry results treatment compatible enough to polypropylene, crystallinity of the research showed the best properties on the variable 165 ° C for 20 minutes. And who has the most excellent tensile strength properties are variable 170 ° C for 20 minutes, while the best of % elongation is at a variable 160 ° C 20 minutes.;In this work, palm fiber crushed and sieved size 40 # after the palm fiber chemically treated with 2% NaOH for 1 hour, 0.1 N KMnO4 for 15 minutes, and 5% NaClO for 5 hours in order to obtain crystalline cellulose. Once that is done the dry mixing (hotmelt mixing) between polypropylene and palm fiber chemical treatment results with 7.5% volume of the palm fiber and polypropylene with a variable temperature of 160°C, 165°C and 170°C and a variable time mixing 15 minutes and 20 minutes. After it was examined FTIR test for fiber, while the composite is made tensile test, STA test, XRD test and FE-SEM test this is done to obtain crystallinity and mechanical properties of polypropylene composites this. The results show that fiber perlakuaan results more crystalline fibers than untreated palm fiber, polypropylene and palm fiber chemistry results treatment compatible enough to polypropylene, crystallinity of the research showed the best properties on the variable 165 ° C for 20 minutes. And who has the most excellent tensile strength properties are variable 170 ° C for 20 minutes, while the best of % elongation is at a variable 160 ° C 20 minutes.;In this work, palm fiber crushed and sieved size 40 # after the palm fiber chemically treated with 2% NaOH for 1 hour, 0.1 N KMnO4 for 15 minutes, and 5% NaClO for 5 hours in order to obtain crystalline cellulose. Once that is done the dry mixing (hotmelt mixing) between polypropylene and palm fiber chemical treatment results with 7.5% volume of the palm fiber and polypropylene with a variable temperature of 160°C, 165°C and 170°C and a variable time mixing 15 minutes and 20 minutes. After it was examined FTIR test for fiber, while the composite is made tensile test, STA test, XRD test and FE-SEM test this is done to obtain crystallinity and mechanical properties of polypropylene composites this. The results show that fiber perlakuaan results more crystalline fibers than untreated palm fiber, polypropylene and palm fiber chemistry results treatment compatible enough to polypropylene, crystallinity of the research showed the best properties on the variable 165 ° C for 20 minutes. And who has the most excellent tensile strength properties are variable 170 ° C for 20 minutes, while the best of % elongation is at a variable 160 ° C 20 minutes.;In this work, palm fiber crushed and sieved size 40 # after the palm fiber chemically treated with 2% NaOH for 1 hour, 0.1 N KMnO4 for 15 minutes, and 5% NaClO for 5 hours in order to obtain crystalline cellulose. Once that is done the dry mixing (hotmelt mixing) between polypropylene and palm fiber chemical treatment results with 7.5% volume of the palm fiber and polypropylene with a variable temperature of 160°C, 165°C and 170°C and a variable time mixing 15 minutes and 20 minutes. After it was examined FTIR test for fiber, while the composite is made tensile test, STA test, XRD test and FE-SEM test this is done to obtain crystallinity and mechanical properties of polypropylene composites this. The results show that fiber perlakuaan results more crystalline fibers than untreated palm fiber, polypropylene and palm fiber chemistry results treatment compatible enough to polypropylene, crystallinity of the research showed the best properties on the variable 165 ° C for 20 minutes. And who has the most excellent tensile strength properties are variable 170 ° C for 20 minutes, while the best of % elongation is at a variable 160 ° C 20 minutes., In this work, palm fiber crushed and sieved size 40 # after the palm fiber chemically treated with 2% NaOH for 1 hour, 0.1 N KMnO4 for 15 minutes, and 5% NaClO for 5 hours in order to obtain crystalline cellulose. Once that is done the dry mixing (hotmelt mixing) between polypropylene and palm fiber chemical treatment results with 7.5% volume of the palm fiber and polypropylene with a variable temperature of 160°C, 165°C and 170°C and a variable time mixing 15 minutes and 20 minutes. After it was examined FTIR test for fiber, while the composite is made tensile test, STA test, XRD test and FE-SEM test this is done to obtain crystallinity and mechanical properties of polypropylene composites this. The results show that fiber perlakuaan results more crystalline fibers than untreated palm fiber, polypropylene and palm fiber chemistry results treatment compatible enough to polypropylene, crystallinity of the research showed the best properties on the variable 165 ° C for 20 minutes. And who has the most excellent tensile strength properties are variable 170 ° C for 20 minutes, while the best of % elongation is at a variable 160 ° C 20 minutes.]"

"Pada zaman sekarang ini dimana penggunaan energi yang murah, efisien, dan ramah lingkungan sangat diperlukan, maka dikembangkan sel tunam (fuel cells) sebagai sumber energi baru. Kekurangan dari sel tunam konvensional adalah massanya yang berat dan proses manufaktur yang sulit sehingga harga sel tunam itu sendiri menjadi mahal. Sifat ini merupakan kontribusi dari pelat bipolar pada sel tunam tersebut. Oleh karena itu, dibutuhkan pelat bipolar yang ringan, mudah diproses, dan murah. Dalam penelitian ini dikembangkan komposit pelat bipolar menggunakan matriks polipropilena (PP), penguat karbon, dan aditif polyvinylidene fluoride (PVDF) yang divariasikan komposisinya untuk mendapatkan sifat konduktivitas dan mekanis yang baik.Sifat-sifat dari komposit yang dihasilkan diuji dengan pengujian mekanis, konduktivitas, dan melt flow indexer. Selain itu, dilakukan juga pengamatan mikrograf dengan menggunakan SEM.Dari hasil pengujian tersebut, didapatkan bahwa sifat mekanis akan semakin menurun seiring dengan penambahan penguat karbon dalam komposit. Namun, nilai konduktitasnya kecil. Dari keempat formula, didapatkan bahwa nilai mekanis yang paling baik terdapat pada formula dua dengan persentase penguat karbon sebesar 44 % wt. dan sifat konduktivitas terbaik terdapat pada formula tiga dengan 80 % wt. karbon dimana di dalamnya terkandung 25 % wt. grafit.Dalam penelitian ini belum didapatkan komposisi yang optimal dalam pembagian komposisi PP dan penguat karbon. Selain itu, nilai konduktivitas juga masih kecil karena PVDF tidak dapat membantu ikatan PP dengan penguat karbon dengan baik.

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Nowadays, when the usage of cheap, efficient, and eco-friendly energy is needed, fuel cells as a new energy source is developed. The disadvantage of conventional fuel cells are its heavyness and its low processability, which leads to its high price. These properties are affected by its bipolar plates. Therefore, we need a lightweight, easy-to-process, and cheap bipolar plates.In this study, we develop a bipolar plate composite by using polypropylene matrix, carbon reinforcements, and polyvinylidene fluoride as an additive and varying its composition to develop good conductivity and mechanical properties.Composite properties are evaluated by using mechanical tests, conductivity tests, and melt flow indexer. SEM micrography is also used.From the results, we can conclude that mechanical properties will decrease as the adding of carbon reinforcements in the composite. But, it will decrease its conductivity. From 4 formulas we develop, second formula had the best mechanical properties with 44 % wt. carbon reinforcement and the third formula had the best conductivity properties with 80 % wt. carbon reinforcements, whereas, it has 25 % wt. graphite.In this study, the optimal composition hasn?t been retrieved. The conductivity result also shows low conductivity because PVDF doesn?t help the bonding between PP and carbon reinforcements perfectly."

"Untuk mendapatkan kemasan makanan dengan sifat yang superior, trend saat ini ialah pengembangan teknologi komposit nano. Salah satu permasalahan yang ada ialah pembuatan komposit nano ini terbilang rumit dan mahal. Tujuan jangka panjang dari riset ini adalah membuat polipropilena (PP) clay komposit nano (PPCN) yang berbiayarendah dengan menerapkan prinsip pembuatan singkat cascade engineering. Prinsip cascade engineering pada pembuatan PPCN ini, dilakukan dengan pembuatan pengkompatibel (compatibilizer) dalam hal ini PP-g-maleik anhidrida (maleic anhydride/MA) (untuk memungkinkan pencampuran PP dengan clay), masterbatch, dan PPCN secara berkelanjutan dalam satu alat melt mixing. Hasil penelitian yang disajikan pada tulisan ini difokuskan pada stabilitas termal PPCN yang dibuat dengan prosedur ?cascade engineering? yang disimulasikan dengan perlakuan anil (pemanasan), yang diamati dengan teknik difraksi sinar x (XRD) small angle pada morfologi sampel PPCN. Dari hasilXRD yang dilakukan, terlihat bahwa morfologi yang dihasilkan sistem ini ialah berupa interkelasi. Dan secara umum, terlihat tidak adanya pengaruh yang signifikan dari variabel waktu pembuatan masterbatch yang digunakan (1, 3, dan 6 menit). Setelah dilakukan pengujian XRD pasca anil, terlihat bahwa stabilitas termal sistem yang dihasilkan kurang baik. Hal ini terlihat dari adanya penurunan ukuran galeri montmorillonit (deinterkelasi). Diperkirakan hal ini disebabkanoleh kurang kuatnya ikatan yang terbentuk antara pengkompatibel PP-g-MA dengan clay dan juga kurang baiknya kompatibilitas PP-g-MA.

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AbstractSuperior properties of food packaging can be achieved using nanocomposite technology. However, fabrication of this materials are complex and expensive. Long term objectives of this research isthe synthesis of low cost polypropylene clay nanocomposites (PPCN) via a short-cut method known as ?cascade engineering?. Cascade engineering principle in PPCN fabrication is performed by using compatibilizer (to enable the mixing of PP and clay) masterbatch, and PPCN in one pot process using melt mixer. This paper present theexperimental results using small-angle x-ray diffraction (XRD) on the thermal stability of the PPCN. Results from the XRD analysis showed that the clay was intercalated, however no significant changes were observed as a result of variation in mixing time. XRD patterns of the annealed PPCN showed reduction of MMT?s gallery (deintercalation)These phenomenon was probably caused by insufficient bonding and lack of compatibility between PP-g-MA and MMT."

"Wood Polymer Composite (WPCs) adalah material komposit yang terdiri atas polimer sebagai matriks dan kayu sebagai bahan penguat (reinforcement). WPCs terus menerus dikembangkan dan disempurnakan sifat-sifatnya sebagai building material sehingga dapat dijadikan material alternatif pengganti kayu.Peneltian ini bertujuan untuk mempelajari pengaruh ukuran bahan pengisi terhadap karakterikstik komposit polipropilena serbuk kayu. Material yang digunakan adalah resin polipropilena dan serbuk kayu karet yang masingmasing bertindak sebagai matriks dan bahan pengisi, dan PPMA (Polipropilena Maleat Anhidrat) sebagai coupling agent. Ukuran serbuk kayu yang digunakan adalah tanpa bahan pengisi, 1410 µm, 100 µm, 365 µm, 250 µm. Proses pembuatan WPCs menggunakan metode palletizing dan injecton molding dengan temperatur sebesar 190°C. Komposit yang dihasilkan diuji untuk menegetahui nilai MFR (Melt Flow Rate), sifat termal (temperatur leleh dan temperatur kristalisasi) sifat mekanis (tensile strength at yield, fleksural, izod impact energy dan kekerasan).Hasil penelitian menunjukkan semakin kecil ukuran bahan pengisi maka MFR, temperatur melting, temperatur kristalisasi, tensile strength at yield, fleksural, dan kekerasan semakin meningkat. Sebaliknya, cenderung terjadi penurunan nilai izod impact energy dengan semakin kecilnya ukuran bahan pengisi.

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Wood Polymer Composite (WPCs) is consisted of two elements that different in nature, polymer as matrix and wood as filler (reinforcement). WPCs have been continually improved in order to get better properties as building material and alternative wood substitute.

The aim is to study the effect of filler size on characteristics WPCs. Resin polypropylene and rubber wood powder are used in this research as a matrix and filler respectively, and PPMA (Polypropylene Maleate Anhydrate is also used as a coupling agent. Filler size that used in this study are without filler, 1410 µm, 100 µm, 365 µm, 250 µm. The process of making PCs through palletizing and injection molding method at temperature 190°C. Then, the composite products are analyzed in order to know the effect properties of this composite such as MFR (Melt Flow rate), thermal properties (melting temperature and crystallization temperature), mechanical properties (tensile strength at yield, flexural, izod impact energy and hardness), fracture type and chemical composition.

The result shows that MFR (Melt Flow rate), thermal properties (melting temperature and crystallization temperature) and mechanical properties (tensile strength at yield, flexural, izod impact energy and hardness) have a tendency to increase as decreasing of filler size. In the other hand, izod impact energy decreased."

"Dalam bisnis gelas polipropilena hasil proses thermoforming, kualitas produk ditentukan salah satunya oleh kecepatan alir lelehan (Melt Flow Rate, MFR) yang rendah. Namun, tingginya harga material mendorong industri untuk menurunkan berat produk dan meningkatkan kecepatan produksinya, salah satunya dengan menggunakan MFR yang tinggi. Dalam penelitian ini, telah dilakukan pengujian mekanis lengkap dan analisis statistik untuk menentukan formulasi empiris polipropilena berdasarkan MFR, fraksi ataktik, dan kandungan etilena kopolimer. Penelitian menunjukan bahwa performa terbaik dari uji jatuh diperoleh dari sampel dengan rentang MFR antara 2.2?2.4 gr/10min, fraksi ataktik antara 1.5?2.96 wt%, dan kandungan etilena kopolimer kurang dari 0.82 wt%. Hasil tersebut memenuhi persyaratan uji aplikasi, stabilitas proses, dan tahapan penyusunan produk.

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In polypropylene thermoforming cup business, the quality of product can be achieved by the raw material with low melt flow rate (MFR). However, the high material cost condition has encouraged cup manufacturer to down gauge the cup weight and increase the productivity by using higher MFR.

In this study, a series of mechanical testing and statistical analysis have been used to empirically formulate the desired polypropylene based on MFR, atactic fraction, and ethylene copolymer aspects. On the basis of the investigation, it has been found that the best performance in drop test was provided by the sample with the MFR of 2.2?2.4 gr/10min, atactic fraction of 1.5?2.96 wt%, and ethylene copolymer content "

"[Polipropilena (PP) kopolimer impak merupakan salah satu jenis PP yangcukup banyak digunakan. PP kopolimer impak dibuat dengan penambahan etilena yang mengakibatkan penurunan kristalinitas PP. Usaha yang dilakukan untuk memperbaiki sifat kristalinitas PP yaitu dengan menambahkan agen nukleasi. Pada penelitian ini PP ditambahkan agen nukleasi serat ijuk yang mendapatkan perlakuan alkali, dilanjutkan dengan oksidasi menggunakan katalis yang bertujuan untuk mempercepat waktu kristalisasi PP. Serat ijuk ditambahkan sebanyak 10% volum. Morfologi, kandungan kimia dan kristalinitas serat ijuk dikarakterisasi dengan menggunakan FESEM (Field Emission Scanning Electron Microscope), FTIR (Fourier Transmission Infra Red), XRD (X-Ray Diffraction). Terbukti bahwa telah terjadi perubahan diameter dan morfologi serat ijuk menjadi mikrofibril setelah perlakuan alkali yang dilanjutkan dengan oksidasi menggunakan katalis. Hal tersebut menunjukkan telah terjadi penggerusan permukaan serat ijuk yaitu dengan menurunnya kadar lignin dan hemiselulosa yang merupakan pengikat antara lignin dan selulosa. Hasil karakterisasi XRD menunjukkan kristalinitas serat ijuk yang tidak diberi perlakuan adalah 42% sedangkan yang mendapat perlakuan NaOH 2% selama 1 jam dilanjutkan oksidasi menggunakan NaClO 5% selama 5 jam dan katalis KMnO4 0,01 N selama 15 menit menunjukkan kristalinitas sebesar 60,75%. Untuk mengerahuiefek serat ijuk sebagai agen nukleasi dilakukan uji DSC (Differential Scanning Calorimetry) pada sampel campuran PP-serat ijuk. Hasil DSC menunjukkan ada perubahan kecepatan kristalisasi PP-serat ijuk yang menunjukkan efek serat ijuk sebagai agen nukleasi. Pada kecepatan pendinginan 10 ° C/menit, PP murni memiliki waktu kristalisasi 1,2 detik, PP-serat tanpa perlakuan memiliki waktu kristalisasi 1 detik sedangkan PP-serat ijuk dengan perlakuan NaOH 2% selama 1 jam dilanjutkan oksidasi menggunakan NaClO 5% selama 5 jam dan katalisKMnO4 0,01 N selama 15 menit memiliki waktu kristalisasi 0,9 detik.;Polypropylene (PP) copolymer impact is one type of PP is quite widely used. PP impact copolymer is made by adding ethylene which resulted in a decrease in crystallinity PP. Efforts are being made to improve the properties of PP crystallinity by adding a nucleating agent. In this study PP nucleating agent added “Ijuk” fibers that get alkali treatment, followed by oxidation using a catalyst which aims to accelerate the crystallization of PP time. “Ijuk” fibers was added as much as 10% volume. Morphology, chemistry and crystallinity of “Ijuk”fibers were characterized by using FESEM (Field Emission Scanning Electron Microscope), FTIR (Fourier Transmission Infra Red), XRD (X-Ray Diffraction). It was proved that there has been a change in fiber diameter and morphology of fibers into microfibrils after alkali treatment followed by oxidation using a catalyst. It showed that there has been annihilation of surface fibers with reduced levels of lignin and hemicellulose which is a binder between lignin and cellulose. XRD characterization result indicated the fiber crystallinity untreated fibers was 42% while with treatment 2% NaOH for 1 hour followed oxidation using NaClO 5% for 5 hours and the catalyst KMnO4 0.01 N for 15 minutes showed crystallinity of 60.75%. To determine “Ijuk” fiber as nucleating agents, the sample of PP-fiber mixture was tested by DSC (Differential Scanning Calorimetry). DSC results showed change in rate of crystallization of PP-fiber fibers that indicate the effects of “Ijuk” fiber as a nucleating agent. In the cooling rate of 10 ° C / min, pure PP has a crystallization time of 1.2 seconds, the PPfibers without treatment had a crystallization time of 1 second while the PP-fiber fibers with 2% NaOH treatment for 1 hour followed oxidation using NaClO 5% for 5 hour and 0.01 N KMnO4 catalyst for 15 minutes had a crystallization time of 0.9 seconds., Polypropylene (PP) copolymer impact is one type of PP is quite widelyused. PP impact copolymer is made by adding ethylene which resulted in adecrease in crystallinity PP. Efforts are being made to improve the properties ofPP crystallinity by adding a nucleating agent. In this study PP nucleating agentadded “Ijuk” fibers that get alkali treatment, followed by oxidation using acatalyst which aims to accelerate the crystallization of PP time. “Ijuk” fibers wasadded as much as 10% volume. Morphology, chemistry and crystallinity of “Ijuk”fibers were characterized by using FESEM (Field Emission Scanning ElectronMicroscope), FTIR (Fourier Transmission Infra Red), XRD (X-Ray Diffraction). Itwas proved that there has been a change in fiber diameter and morphology offibers into microfibrils after alkali treatment followed by oxidation using acatalyst. It showed that there has been annihilation of surface fibers with reducedlevels of lignin and hemicellulose which is a binder between lignin and cellulose.XRD characterization result indicated the fiber crystallinity untreated fibers was42% while with treatment 2% NaOH for 1 hour followed oxidation using NaClO5% for 5 hours and the catalyst KMnO4 0.01 N for 15 minutes showedcrystallinity of 60.75%. To determine “Ijuk” fiber as nucleating agents, thesample of PP-fiber mixture was tested by DSC (Differential ScanningCalorimetry). DSC results showed change in rate of crystallization of PP-fiberfibers that indicate the effects of “Ijuk” fiber as a nucleating agent. In the coolingrate of 10 ° C / min, pure PP has a crystallization time of 1.2 seconds, the PPfiberswithout treatment had a crystallization time of 1 second while the PP-fiberfibers with 2% NaOH treatment for 1 hour followed oxidation using NaClO 5%for 5 hour and 0.01 N KMnO4 catalyst for 15 minutes had a crystallization time of0.9 seconds.]"