CAJ | 학술논문

用POE-g-MAH对PA66进行增韧,分别再添加纳米SiO_2和纳米CaCO_3,研究了两种无机纳米粒子在PA66/POE-g-MAH共混体系中的作用.结果表明,PA66/POE-g-MAH/纳米SiO_2三元共混体系质量比为100/30/0.1时,共混体系的缺口冲击强度是纯PA66的10.9倍;质量比为100/20/0.1时,缺口冲击强度是纯PA66的4.4倍.PA66/POE-g-MAH/纳米CaCO_3三元共混体系配比为100/20/1时,共混体系的缺口冲击强度是纯PA66的3倍.冲击断口的微观形态观察表明,纳米SiO_2分散均匀,团聚现象少,纳米SiO_2在体系中的增韧效果优于纳米CaCO_3.
용POE-g-MAH대PA66진행증인,분별재첨가납미SiO_2화납미CaCO_3,연구료량충무궤납미입자재PA66/POE-g-MAH공혼체계중적작용.결과표명,PA66/POE-g-MAH/납미SiO_2삼원공혼체계질량비위100/30/0.1시,공혼체계적결구충격강도시순PA66적10.9배;질량비위100/20/0.1시,결구충격강도시순PA66적4.4배.PA66/POE-g-MAH/납미CaCO_3삼원공혼체계배비위100/20/1시,공혼체계적결구충격강도시순PA66적3배.충격단구적미관형태관찰표명,납미SiO_2분산균균,단취현상소,납미SiO_2재체계중적증인효과우우납미CaCO_3.
Studied the effect of nano-SiO_2 and nano-CaCO_3 inorganic nano-particles on the blends of PA66/ethylene-octenecopolymer-grafted-maleic anhydride (POE-g-MAH) blends by toughing PA66 with POE-g-MAH. The results showed the notched impact strength of the blend was 10.9 times as high as that of PA66, when the mass ratio of PA66/POE-g-MAH/nano-SiO_2 composites was 100/30/0.1, and the notched impact strength was 4.4 times as high as that of PA66 when the mass ratio of PA66/POE-g-MAH/nano-SiO_2 composites was 100/20/0.1. The notched impact strength of the blend was 3 times as high as that of PA66, when the mass ratio of PA66/POE-g-MAH/nano-CaCO_3 composites was 100/20/1. Toughening effect in Nano-SiO_2 was better than that in nano-CaCO_3. The notched impact fracture of composites was studied by TEM.