摘要
利用硅烷偶联剂KH-570改性纳米远红外陶瓷粉,然后利用球磨混合、热压成型工艺制备纳米远红外陶瓷粉/超高摩尔质量聚乙烯(UHMWPE)复合材料。研究了改性纳米远红外陶瓷粉对UHMWPE结晶度、力学性能、摩擦学性能的影响。结果表明,改性纳米远红外陶瓷粉提高了复合材料的结晶度;随着纳米远红外陶瓷粉填充量的增大,拉伸强度和屈服强度先增强后减弱,当纳米远红外陶瓷粉填充质量分数为3%时,其拉伸强度和屈服强度均提高10%以上;纳米远红外陶瓷粉填充有效地改善了UHMWPE的摩擦学性能,当填充质量分数为4%时,磨损率最低,相比纯UHMWPE降低了20%。
Nano-far-infrared ceramic powder was modified by silane coupling agent KH-570. Nano-far- infrared ceramic powder/UHMWPE composites were prepared by ball milling and hot pressing. The effect of modified nano-far-infrared ceramic powder on the crystallinity, mechanical properties and wear rate of UHMWPE composites were studied. The results show that： the crystallinity of the composites is improved by the modified nano-far-infrared ceramic powder; with the increase of the content of nano-far-infrared ceramic powder, the tensile strength and yield strength increase and then decrease. When the content of nano-far- infrared ceramic powder is 3wt%, the tensile strength and yield strength increase by more than 10%. When the mass fraction of nano-far-infrared ceramic powder is 4wt%, the wear rate is the lowest -20% lower than that of the non-filled.
出处
《塑料工业》
CAS
CSCD
北大核心
2017年第3期66-69,共4页
China Plastics Industry
基金
国家自然科学基金(51305166)
江苏省自然科学基金(BK20130143)
关键词
超高摩尔质量聚乙烯
复合材料
力学性能
磨损率
Ultra-high Molecular Weight Polyethylene
Composites
Mechanical Properties
Wear Rate
