摘要
采用CaO、CO2和天然胶乳等为原料,将CaCO3的制备工艺和NR的制备工艺相结合,先将Ca(OH)2与CO2反应制备CaCO3乳液再与天然胶乳共混、共凝制备CaCO3/NR复合材料。采用正交实验方法,探讨了Ca(OH)2用量、炭化温度、成核剂(Na5P3O10)和分散剂(EDTA)的用量对CaCO3/NR复合材料性能的影响,获得制备CaCO3/NR复合材料的最佳工艺。结果表明CaCO3/NR复合材料的适宜制备工艺条件为:Ca(OH)2质量分数为7.5%,碳化温度为20℃,晶形控制剂质量分数为0.60%,分散剂质量分数为0.65%。
Calcium oxide,carbon dioxide and natural rubber latex were selected as raw materials, and the preparation technology of calcium carbonate was combined with that of natural rubber. First, the emulsion of calcium carbonate was prepared through the reaction of calcium hydroxide and carbon dioxide,then complexed with natural rubber latex to obtain CaCO2/NR composites through coagula- tion. The effects of different factors of orthogonal experimens on the properties of composites were investigated. The results show that the optimal preparation condition of the composites is Na5P3O10 as crystal modifier 0.60% ,EDTA as dispersant 0.65% ,calcium hydroxide 7.50% and at 20 ℃.
出处
《弹性体》
CAS
北大核心
2009年第2期47-49,54,共4页
China Elastomerics
基金
中国热带农业科学院橡胶研究所基本科研业务费资助(XJSYWFZX2008-18)
关键词
结晶控制剂
CACO3
NR
复合材料
crystal modifier
calcium carbonate
natural rubber
composites
