Enhanced Thermal and Mechanical Properties of Polypropylene Composites with Hyperbranched Polyester Grafted Sisal Microcrystalline

被引：18

作者：

Wu, Lingyan ^{[1
]}

Lu, Shaorong ^{[1
]}

Pan, Lulu ^{[1
]}

Luo, Qiyun ^{[1
]}

Yang, Jin ^{[1
]}

Hou, Linglan ^{[1
]}

Li, Yuqi ^{[1
]}

Yu, Jinhong ^{[1
,2
]}

机构：

[1] Guilin Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab New Proc Technol Nonferrous Met & Mat, Guilin 541004, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China

来源：

FIBERS AND POLYMERS | 2016年 / 17卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Sisal microcrystalline; Polypropylene; Hyperbranched polymer; FIBER-REINFORCED COMPOSITES; I-PP/CACO3; COMPOSITES; CELLULOSE FIBERS; NATURAL FIBER; CRYSTALLIZATION; NANOCOMPOSITES; BLENDS; POLYGLYCEROLS; MORPHOLOGY;

D O I：

10.1007/s12221-016-6257-6

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

Polypropylene composites were prepared by melt compounding method with hyperbranched polyester grafted sisal microcrystalline and CaCO3. The thermal and mechanical properties of polypropylene composites were investigated by means of thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD), scanning electron microscopy (SEM), melt flow indexer (MFI), dynamic mechanical analysis (DMA) and mechanical tests. It was found that the thermal and mechanical properties of PP composites were greatly improved by incorporating MCC-g-HPG-SA. For example, the impact strength, flexural strength, and toughness of the composites with 4 wt% MCC-g-HPG-SA loading were 64.71 kJ/m(2), 42.72 MPa, and 2186.69 J/m(3), significantly increased by 238.3 %, 18.4 % and 1843.9 % respectively, as compared with PP/MCC/CaCO3 composites. In addition, thermal stability of PP/MCC-g-HPG-SA/CaCO3 composites also showed an obvious enhancement compared with PP/MCC/CaCO3 composites.

引用

页码：2153 / 2161

页数：9