粘接
粘接
점접
2013年
10期
44-47
,共4页
柳彬彬%吴兴波%吕红%王旭辉%小林晃司
柳彬彬%吳興波%呂紅%王旭輝%小林晃司
류빈빈%오흥파%려홍%왕욱휘%소림황사
导电性能%电磁屏蔽效能%交联剂%无酸%压敏胶带
導電性能%電磁屏蔽效能%交聯劑%無痠%壓敏膠帶
도전성능%전자병폐효능%교련제%무산%압민효대
conductivity%electromagnetic shielding effectiveness%cross linker%acid-free%PSA tape
以无酸丙烯酸酯系压敏胶为导电胶基体,苯二亚甲基二异氰酸酯(XDI)为交联剂,镍/银混合粉体为导电填料,制备了铜箔导电胶带。讨论了导电粒子的种类及其添加量、交联剂的用量、老化存放时间等对导电胶带的粘接性能、导电性能及电磁屏蔽性能的影响。结果表明,当镍银混合粉添加15%,交联剂用量2.5%,干胶厚度45μm时,制备的胶带综合性能良好。其粘接强度大于19 N/25mm,体积电阻率为-36×10Ω·cm,电磁屏蔽效能大于90 dB(频率从30~1500 MHz),且耐高温性能稳定。
以無痠丙烯痠酯繫壓敏膠為導電膠基體,苯二亞甲基二異氰痠酯(XDI)為交聯劑,鎳/銀混閤粉體為導電填料,製備瞭銅箔導電膠帶。討論瞭導電粒子的種類及其添加量、交聯劑的用量、老化存放時間等對導電膠帶的粘接性能、導電性能及電磁屏蔽性能的影響。結果錶明,噹鎳銀混閤粉添加15%,交聯劑用量2.5%,榦膠厚度45μm時,製備的膠帶綜閤性能良好。其粘接彊度大于19 N/25mm,體積電阻率為-36×10Ω·cm,電磁屏蔽效能大于90 dB(頻率從30~1500 MHz),且耐高溫性能穩定。
이무산병희산지계압민효위도전효기체,분이아갑기이이청산지(XDI)위교련제,얼/은혼합분체위도전전료,제비료동박도전효대。토론료도전입자적충류급기첨가량、교련제적용량、노화존방시간등대도전효대적점접성능、도전성능급전자병폐성능적영향。결과표명,당얼은혼합분첨가15%,교련제용량2.5%,간효후도45μm시,제비적효대종합성능량호。기점접강도대우19 N/25mm,체적전조솔위-36×10Ω·cm,전자병폐효능대우90 dB(빈솔종30~1500 MHz),차내고온성능은정。
A copper foil electrically conductive PSA tape was prepared using the acid-free acrylate PSA as the matrix,XDI(xylylene diisocyanate) as the cross linker,and Ni/Ag mixed powder as the conductive filler.The influence of the type and content of conductive filler,the cross linker amount and the storage ageing time was discussed on the bonding performance,conducivity and electromagnetic shielding effectiveness for the conductive tape.The experiment results indicated that the corresponding PSA tape had good combination property,high bonding strength (over 19N/25-3mm),excellent conductivity (volume resistivity 7×10 Ω·cm),electromagnetic shielding effectiveness (SE over 90 dB) and high temperature resistance when the content of Ni/Ag composite particles was 15 wt%,the amount of XDI was 2.5 wt%and the thickness of dry adhesive coating was 40μm.