摘要
研究了ＮＲ和几种导电性填料复合物的微波屏蔽效果以及填料的用量、电导率和试样厚度对微波屏蔽效果的影响。结果表明，ＮＲ／石墨粉复合物对微波屏蔽效果较好，当石墨粉用量为２５０份时，微波屏蔽效果达４２ｄＢ；复合材料的电导率大，微波屏蔽效果就好；当试样厚度为０３５ｍｍ时，微波屏蔽效果达到该体系复合物的极限值（３４ｄＢ）；石墨粉在ＮＲ中的分散越均匀，复合物的微波屏蔽效果越好。
The effect of the conductive filler type,loading level and conductivity and the shield thickness on the effectiveness of microwave shielding was investigated.The results showed that NR/ground graphite composite was a better shielding material and 42 dB of microwave shielding effectiveness was obtained with 250 phr of ground graphite in the composite;the higher conductivity of the composite,the better effectiveness of microwave shielding;34 dB of upper limit microwave shielding effectiveness was obtained with 0.35 mm of shield thickness;and the more uniform dispersion of ground graphite in the composite,the better microwave shielding effectiveness.
出处
《橡胶工业》
CAS
北大核心
1998年第6期348-352,共5页
China Rubber Industry
