•外(wai)观:银白色糊(hu)状(zhuang)物(wu),允许有分层;
•导电(dian)性:固化后的导电(dian)胶用(yong)万用(yong)表测试(shi),胶层电(dian)阻应在0.1 Q以(yi)下。
SY-71单组分导电(dian)(dian)胶可(ke)应用于粘接电(dian)(dian)子显微镜、压电(dian)(dian)陶瓷、流量计、电(dian)(dian)子元(yuan)件(jian),也可(ke)用于飞机(ji)座舱盖、大型(xing)飞机(ji)机(ji)翼(yi)等防静电(dian)(dian)部件(jian)的涂层。
•外(wai)观:银白色糊(hu)状(zhuang)物(wu),允许有分层;
•导电(dian)性:固化后的导电(dian)胶用(yong)万用(yong)表测试(shi),胶层电(dian)阻应在0.1 Q以(yi)下。
•建议按HB/Z197釆(bian)用磷酸阳极化表面处理。钢试样或(huo)零(ling)件可采用喷砂处理。复合材料(liao)可用砂纸(zhi)打磨至均(jun)匀的粗糙(cao)度,用刷子除去(qu)粉尘并用丙酮清(qing)洗,然后充分烘干(gan)。任何(he)金(jin)属或(huo)非金(jin)属可根据工(gong)艺要求进行相应的
•表面(mian)清洁处理,应确保无油(you)污污染。
【应用领域】
航(hang)空、航(hang)天领域或其他民(min)用领域。
•涂胶(jiao)及胶(jiao)接工艺:
(1) 胶接(jie)工艺中(zhong)应(ying)避免对导电(dian)胶的污(wu)染(ran),操(cao)作时(shi)应(ying)随时(shi)搅拌导电(dian)胶以确保均匀,并最好套一层一次性PE塑料手套。应(ying)避免导电(dian)胶与皮肤的接(jie)触;
(2) 胶接施工中由于溶剂的挥(hui)发导电胶可(ke)能会粘(zhan)度增大(da)以(yi)至于涂覆困难,此时可(ke)加(jia)入适量无水乙醇稀释至接近原始粘(zhan)度状态,并充分搅拌(ban)均匀。
(3) 在(zai)粘接应用(yong)中,先(xian)将导(dao)(dao)电(dian)胶搅拌(ban)均(jun)匀(yun)(yun)。用(yong)小毛刷(shua)将搅拌(ban)均(jun)匀(yun)(yun)的(de)导(dao)(dao)电(dian)胶均(jun)匀(yun)(yun)地涂刷(shua)在(zai)铝合金(jin)试(shi)片上(shang),两个(ge)胶接面各涂刷(shua)1层,晾(liang)置(zhi)5min左(zuo)右,在(zai)导(dao)(dao)电(dian)胶完全固(gu)(gu)化凝固(gu)(gu)之前将两个(ge)粘接件(jian)合拢,施(shi)加(jia)0.05MPa -0.3MPa压(ya)力,或用(yong)手施(shi)加(jia)压(ya)力粘接牢固(gu)(gu)即(ji)可。胶接件(jian)可在(zai)室温下放置(zhi)24h后即(ji)可达到使(shi)用(yong)状(zhuang)态(tai)。此外,为尽快(kuai)使(shi)胶接件(jian)达到使(shi)用(yong)状(zhuang)态(tai),在(zai)室温条(tiao)件(jian)下放置(zhi)60min以后,再于(yu)8O°C - 1OO°C的(de)烘(hong)(hong)箱中烘(hong)(hong)干至少(shao)30min,烘(hong)(hong)箱温度降至40°C以下后将试(shi)样取(qu)出,自然冷却到室温。
(4) 在表面涂(tu)(tu)层应(ying)用(yong)中,先将导(dao)电(dian)(dian)胶(jiao)搅(jiao)拌均(jun)匀。用(yong)小毛刷(shua)将搅(jiao)拌均(jun)匀的导(dao)电(dian)(dian)胶(jiao)均(jun)匀地涂(tu)(tu)刷(shua)在铝合金试(shi)(shi)片上,涂(tu)(tu)刷(shua)2至(zhi)3层,涂(tu)(tu)刷(shua)间隔至(zhi)少(shao)为5min。然后在室温(wen)条件下(xia)晾置30min ~ 60min。再(zai)于(yu)8O°C - 100°C的烘(hong)箱中烘(hong)干至(zhi)少(shao)30min。烘(hong)箱温(wen)度降4C°C以下(xia)后将试(shi)(shi)样取出(chu),自然冷却到(dao)室温(wen)。
【包装(zhuang),运输及贮存】
•包装、运(yun)输:SY-71单组(zu)分导(dao)电胶应包装于(yu)密(mi)封的聚乙烯塑料瓶(ping)或玻(bo)璃瓶(ping)中,一般为50g包装。该产品含有机溶剂,可按有关规定进(jin)行运(yun)输,同(tong)时(shi)运(yun)输途中应有防潮措(cuo)施,避免(mian)高温和阳光照射。
•贮存:SY-刀(dao)单组分导(dao)电胶应(ying)密封贮存于(yu)低(di)于(yu)25°C的窒溫环境下(xia),避幵火源和热源。从(cong)生产日(ri)期(qi)起,有效贮存期(qi)为一年。