The results show that the dispersibility of nono - particles become excellent after treated with 3wt % coupling agent of titanic ester , the average dimension of treated nono - particles in uhmwpe fibers is about 50nm , and no big agglomerated particles occur in it 实验表明经过3wt钛酸酯偶联剂处理的纳米粒子的分散性最佳,处理后纳米粒子在uhmwpe纤维基体中的平均尺寸为50nm左右,基本没有大的团聚体存在。
If the surfaces of baso4 particles were not modified with couplant , the interface was clear with a very small adhesive force ; while the surfaces modified , the interface was fuzzy with a strong adhesive force . the glass transition temperature ( tg ) of baso4 / tpu blend was obtained by dma 当baso _ 4表面未用偶联剂处理时, baso _ 4 / tpu共混体系相界面清晰,界面粘合力较小;当baso _ 4表面用偶联剂处理后, baso _ 4 / tpu共混体系相界面模糊,界面粘合力强。
The improve of rev also lessen ttq , lessening the energy consumption , while in the same time , increase the energy consumption of the machine , so we should choose proper rev to lessen the energy consumption . 2 . with the content of talc , the tensile strength of the composite improves first and then decreases , with a most value in the 20 % of the talc 2随着滑石粉含量的增加,该复合材料的拉伸强度先升后降,在滑石粉含量为20时达到最大,经混合偶联剂处理的复合体系,拉伸强度比未处理的提高约2倍,冲击强度比未处理的高约2倍多,但考虑到制品性能和成本,滑石粉填充量在30 - 40比较合理。
The results of mechanical properties tests show that the tensile strength and the breaking elongation of the polyurethane composites decreased with the increased amount of particles , and the hardness increased with the increased amount of particles . the tensile strength and the breaking elongation of the polyurethane composites processed with kh550 coupling agent were better than those of the polyurethane composites processed with kh560 力学性能测试结果表明,填料的加入在一定程度上降低了聚氨酯弹性体基体的拉伸强度及断裂伸长率,而使硬度有所升高;经过偶联剂kh550处理的al _ 2o _ 3颗粒增强复合材料拉伸强度及断裂伸长率比kh560偶联剂处理的要高。
The mechanic properties of the composite treated with coupling agent is better than that of the composite untreated . the coupling effect of the blend coupling agent is better than that of the only coupling agent . with the increase of coupling agent , the tensile strength of the composite increases first and then decreases , with a most value in the 1 % coupling agent 滑石粉经偶联剂处理后,填充体系的力学性能优于未处理的,混合偶联剂的偶联效果好于单一偶联剂效果,材料的拉伸强度随偶联剂含量的变化也是先升后降,在偶联剂含量1时达到峰值60mpa ,材料的冲击强度随滑石粉含量的变化也是先升后降,在滑石粉含量20时达到峰值6 . 3kj m ~ 2 。