摘要
研究了氢氧化镁(Magnesium Hydroxide,MH)粉体用硅烷偶联剂处理前后性能的变化,分析了产生这些变化的原因,并比较了纳米氢氧化镁(nano-sized Magnesium Hydroxide,n-MH)和微米氢氧化镁(micro-sized Magnesium Hydroxide,m-MH)改性效果的差异。研究表明,用硅烷偶联剂改性后,氢氧化镁粉体的吸水量和吸油量都明显减小,堆积密度增大,在液体石蜡中的黏度减小。由改性后的氢氧化镁与聚丙烯(PP)制备的复合材料的加工性能明显改善。与微米氢氧化镁相比,改性后的纳米氢氧化镁复合材料的可加工性较差,只有偶联剂用量足够大时复合材料才能进行加工成型。
The changes in the property of magnesium hydroxide （MH） modified with silane were studied and the reasons behind these changes were analyzed. The difference of the modification effect of silane on rn - MH and n - MH was compared. It was shown that both water and oil absorbing capacities of modified MH decreased greatly, and the viscosity of the modified powder in liquid paraffin decreased either, whereas the stacking density of the powder increased. The composites consisting of PP and modified m - MH exhibited much better processability. In comparison with m - MH, the composites made from n - MH and PP were very difficult to process. Only when the amount of coupling agent was sufficient, can the PP/n - MH composites be processed.
出处
《化学与粘合》
CAS
2008年第4期33-36,共4页
Chemistry and Adhesion
基金
河南科技大学人才科研基金(项目号:09001147)
大学生研究训练计划(SRTP
项目号:河科大教2006-28)资助项目
关键词
氢氧化镁
表面改性
聚丙烯
偶联剂
加工性能
Magnesium Hydroxide
surface modification
polypropylene
coupling agent
processability
