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1,401 Newest Publications about the topic polypropylene
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Crystalline Structure Changes in Preoriented Metallocene-Based Isotactic Polypropylene upon Annealing
04-06-2013 | Yan Wang; Jia-Zhuang Xu; Yan-Hui Chen; Kai Qiao; Ling Xu; Xu Ji; Zhong-Ming Li; Benjamin S. Hsiao, Journal of Physical Chemistry B, 2013
Partially melted metallocene-based isotactic polypropylene (m-iPP), which was preoriented with a high degree of molecular orientation and a shish-kebab structure, was annealed at various temperatures and isothermally crystallized at 130 °C. The melting and crystallization process was examined ...
Gamma-ray co-irradiation induced graft polymerization of NVP and SSS onto polypropylene non-woven fabric and its blood compatibility
03-06-2013 | Author(s): Rong Li , Hengdong Wang , Wenfeng Wang , Yin Ye, Radiation Physics and Chemistry, 2013
Publication date: Available online 2 June 2013 Source:Radiation Physics and Chemistry Author(s): Rong Li , Hengdong Wang , Wenfeng Wang , Yin Ye Sodium styrenesulfonate was grafted on PPNWF via γ-ray co-irradiation method with the existence of N-vinyl-2-Pyrrolidone. The effect of ...
Enhanced interfacial adhesion via interfacial crystallization between sisal fiber and isotactic polypropylene: direct evidence from single‐fiber fragmentation testing
29-05-2013 | Songjia Han, Kun Ren, Chengzhen Geng, Ke Wang, Qin Zhang, Feng Chen, Qiang Fu, Polymer International, 2013
Abstract Bioresource natural sisal fiber (SF) was used to prepare single fiber‐reinforced isotactic polypropylene (iPP) composites. Three kinds of interfacial crystalline morphologies, spherulites, medium nuclei density transcrystallinity (MD‐TC) and high nuclei density transcrystallinity ...
Nanofibrillar Polymer‐Polymer Composites: Effect of Reinforcement Orientation on the Mechanical Properties
29-05-2013 | Ryan McCardle, Stoyko Fakirov, Debes Bhattacharyya, Macromolecular Symposia, 2013
Summary In‐situ poly (ethylene terephthalate) (PET) nanofibrils were created by drawing of melt blended polypropylene and PET. The drawn blend was used to prepare polymer‐polymer nanofibrillar composites (NFCs), in order to compare the effect of different fibril orientations on the ...
Mechanical properties and crystallization behavior of high fluidity polypropylene/metallocene poly(ethylene–butene–hexene) copolymer blends
28-05-2013 | Yingying Tang, Jingyi Wang, Hongbing Jia, Lifeng Ding, Qi Jiang, Journal of Applied Polymer Science, 2013
ABSTRACT This article presents a study on blends of high fluid polypropylene (HF‐PP)/metallocene poly(ethylene–butane–hexene) copolymer (mEBHC) prepared by melt‐blending process using a twin‐screw extruder. Six different mass fractions of mEBHC in the blends: 0, 5, 10, 30%, and 100% were ...
Melt spinning of conductive textile fibers with hybridized graphite nanoplatelets and carbon black filler
28-05-2013 | Erik Nilsson, Henrik Oxfall, Wojciech Wandelt, Rodney Rychwalski, Bengt Hagström, Journal of Applied Polymer Science, 2013
ABSTRACT In this study, two different carbon fillers: carbon black (CB) and graphite nanoplatelets (GNP) are studied as conductive fillers for the preparation of conductive polypropylene (PP) nanocomposites. In order to obtain a homogenous dispersion of GNP, GNP/PP composites were ...
Properties and nanoscale structure of polypropylene‐layered double hydroxide composites prepared by compatibilizer‐free way
26-05-2013 | Rafael S. Araújo, Iryna Grafova, Maria de Fátima Vieira Marques, Marianna Kemell, Markku Leskelä, Andriy Grafov, Journal of Applied Polymer Science, 2013
ABSTRACT Polypropylene (PP) is the second most widespread commodity polyolefin. Even a small quantity of inorganic component is sufficient to achieve significant improvement of stiffness, strength, thermal stability, biodegradability, etc. The major drawback of inorgano‐organic composite ...
Preparation and characterization of bamboo fiber‐graft‐lauryl methacrylate and its composites with polypropylene
26-05-2013 | Qinhui Chen, Xinggong Mao, Hanyu Xue, Yi Deng, Jinhuo Lin, Journal of Applied Polymer Science, 2013
ABSTRACT In this study, lauryl methacrylate grafted onto bamboo fibers (BF‐g‐LM) was prepared to improve the interfacial compatibility between hydrophilic bamboo fibers (BFs) and hydrophobic plastic. The lauryl methacrylate (LM) was initiated by benzoxyl peroxide (BPO) and grafted onto ...
Influence of heat‐setting temperature on the properties of a stretched polypropylene microporous membrane
24-05-2013 | Lei Caihong, Wu Shuqiu, Cai Qi, Xu Ruijie, Hu Bing, Shi Wenqiang, Polymer International, 2013
Abstract The influence of heat‐setting temperature on the stress–strain curves, differential scanning calorimetry (DSC) curves and properties of a stretched polypropylene microporous membrane was studied. It was found that with an increase of heat‐setting temperature, a plastic plateau ...
A heparin modified polypropylene non‐woven fabric membrane adsorbent for selective removal of low density lipoprotein from plasma
24-05-2013 | Xiaodong Hou, Tao Zhang, Amin Cao, Polymers for Advanced Technologies, 2013
In the present work, a new porous low density lipoprotein (LDL) adsorbent membrane is prepared by 60Co γ‐ray irradiation‐induced grafting copolymerization of polypropylene (PP) non‐woven fabric with acrylic acid, followed by immobilizing heparin covalently. The amount of carboxyl group and ...
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