摘要
研究现场成型液体乙烯基硅橡胶（LSiR）导电复合材料中导电填料镀镍石墨的逾渗行为,探索在不影响产品导电性能和物理性能前提下对有效提高现场成型LSiR导电复合材料流动性能的方法.结果表明：镀镍石墨用量的逾渗值为100～150份,其在200份左右时开始形成完善的导电填料网络;以甲基硅油作为增塑剂能在一定程度上提高LSiR导电复合材料产品的流动速率,但同时使复合材料的物理性能和导电性能大幅下降;以挥发性有机溶剂作为稀释剂可在不影响复合材料导电性能和物理性能的前提下有效提高其流动速率.
The percolation behavior of conductive filler nickel coated graphite （NCG） in liquid silicone rubber （LSiR） conductive composites for formed in place application was investigated, and the methods of improving the flowability of the LSiR composite without affecting its conductive properties and physical properties were investigated. The results indicated that, the conductive percolation value of NCG was 100~150 phr,and a complete conductive filler network began to form in the composites when the addition level of NCG reached 200 phr. The flow rate of the LSiR conductive composites increased to some extent when methyl silicone oil was used as plasticizer, while the conductive and physical properties of the composites were damaged seriously. In contrast, the flow rate of the composites increased effectively without damage to conductive property and physical properties of the composites when volatile organic solvents were used as diluent.
出处
《橡胶工业》
CAS
北大核心
2014年第11期656-660,共5页
China Rubber Industry
