摘要
研究了不同含量稀土β-成核剂(WBG-Ⅱ)对玻璃纤维增强聚丙烯(GFRP)复合材料性能的影响。差示扫描量热仪(DSC)和X-射线衍射仪(XRD)的测试结果表明,材料的结晶度和结晶能力得到大幅提高,且晶体的形态由α-晶占主导变成β-晶占主导,玻璃纤维(GF)对β-成核剂有抑制作用。扫描电镜(SEM)结果表明,试样基体更加柔软,有利于提高冲击性能。当稀土β-成核剂添加量为0.10%时,试样的综合力学性能较优,其拉伸强度达到38.1 MPa,冲击强度8.7kJ/m^2。
Research on the influence of rare earth β-nucleating agent （WBG-II ） on the mechanical properties of glass fiber reinforced polypropylene composites （GFRP） was carried out. The results of differential scanning calorimetry （DSC） and X-ray diffraction （XRD） both showed that the crystallinity degree and crystallization ability were both greatly enhanced and the β-form PP was in the dominant position, GF depressed the activity of B-nucleating agent. Scanning electron microscope observation of the fracture surface of injection-molding GFRP also illustrates that the samples with rare earth B-nucleating agent are in favor of improving the impact strength and making the matrix softer. The sample with 0. 10% 13-nucleating agent in mass fraction possesses the best mechanical properties, of which the tensile strength and impact strength reach 38.1 MPa and 8.7 kJ/m^2, respectively.
出处
《塑料工业》
CAS
CSCD
北大核心
2016年第4期106-110,共5页
China Plastics Industry
基金
上海市产学研合作项目(批准号:沪CXY-2014-023)
江苏省科技成果转化项目(批准号:SBA2014010034)
关键词
稀土β-成核剂
聚丙烯
玻璃纤维
Rare Earth Beta-nucleating
Polypropylene
Glass Fiber
