论文部分内容阅读
利用稀土(Ln)可与有机高分子化合物发生作用的性质,用稀土盐和炭黑以液相化学沉积法制备了稀土化合物掺杂炭黑(HAF-Ln),以增加炭黑粒子的表面活性,并将其与天然胶乳(NRL)共混,采用凝聚共沉法制备稀土掺杂炭黑填充型粉末天然橡胶[P(NR/HAF-Ln)]。透射电镜(TEM)、傅立叶转换红外光谱(FTIR)、等离子发射光谱(ICP)分析表明,稀土可全部沉积到炭黑粒子表面;稀土可有效减少炭黑粒子的团聚,促进炭黑在水中的稳定分散。稀土的加入可提高NR胶乳与乳化炭黑构成的粉末体系的成粉率。
Utilizing the property that rare earth (Ln) can interact with organic macromolecule compound, rare earth compound doped carbon black (HAF-Ln) was prepared by liquid phase chemical deposition with rare earth salt and carbon black to increase the surface activity of carbon black particles , And blended with natural latex (NRL) to prepare carbon black-filled natural rubber [P (NR / HAF-Ln)] by co-coagulation method. Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and plasma emission spectroscopy (ICP) showed that rare earths could all be deposited on the surface of carbon black particles. Rare earths could reduce agglomeration of carbon black particles and promote the stability of carbon black in water. dispersion. The addition of rare earth can improve the powdering rate of the NR latex and emulsified carbon black powder system.