摘要
分别以纳米碳酸钙、滑石粉和纳米蒙脱土作为改性剂,对PPR材料的刚强度以及低温韧性进行改性,研究了不同无机粒子对PPR材料各项力学性能的影响。结果表明：无机粒子的加入均会提高材料的弯曲性能,而过量加入会降低材料的屈服强度;无机粒子均能改善材料的低温脆性,但对常温冲击强度影响不大,其中滑石粉对PPR材料的综合性能提升效果最好,当其用量为6%时,PPR复合材料拉伸强度增加了0.6 MPa,低温冲击强度是改性前的1.7倍。
A series of modified PPR composite materials were prepared by respectively adding nanometer CaCO_3, talcum powder and nanometer montmorillonite. The effects of inorganic particles type and content on the mechanical properties were studied. The results show that： the bending properties would increase by adding inorganic particles, but the tensile strength would decrease when the particles adding excess. Moreover, the inorganic particles were beneficial to improve the toughening property of PPR composite material at low temperature, but it has little effect on the toughening property at room temperature. As a result, talcum powder was the optimal inorganic particle using in the modification of PPR material. When the talcum powder content is 6%, the tensile strength of PPR composite material increases 0.6 MPa and the impact strength is 1.7 times higher than the PPR material without modification.
出处
《塑料科技》
CAS
北大核心
2018年第3期51-54,共4页
Plastics Science and Technology
基金
顺德区科技计划项目——产学研项目(2013CXY04)
关键词
纳米碳酸钙
滑石粉
蒙脱土
无机粒子改性
PPR增韧改性
Nanometer calcium carbonate
Talcum powder
Montmorillonite
Inorganic particle modification
Toughening modification of PPR
