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发明公开
CN106118515A 防潮型热熔胶 无效 - 撤回

防潮型热熔胶
摘要：
一种防潮型热熔胶，其包括两层结构，其中，防潮层，其为涂布有0.4mm＜L＜1.2mm短纤维的树脂型胶黏剂(Ⅰ)，涂布有短纤维的一侧与泡罩铝箔相邻；粘接层，用于粘接泡罩树脂板一侧，所述粘接层采用树脂型胶黏剂(Ⅱ)；其中，所述短纤维是由植物纤维与对位芳纶纤维混合制得的混合纤维，所述混合纤维中，植物纤维与对位芳纶纤维的比例为2:1～3:1；本发明采用复合有防潮层结构的热熔胶，采用该防潮层结构既可以增加与泡罩铝箔的粘合性，也可以提高热熔胶整体的防潮性；将涂布有短纤维的树脂型胶黏剂(Ⅰ)的一侧粘结于铝箔表面，将粘结层一侧与聚氯乙烯或其他硬片进行热封，成膜快；热封温度在140℃时，与聚氯乙烯硬片的热封强度提高了45％以上。
摘要（英）：

The invention provides a moistureproof hot melt adhesive. The moistureproof hot melt adhesive comprises two layers, i.e., a moistureproof layer and a bonding layer, wherein the moistureproof layer is a resin type adhesive (I) coated with short fiber with a length L more than 0.4 mm and less than 1.2 mm; the side, coated with the short fiber, of the moistureproof layer is adjacent to a bubble cap aluminum foil; the bonding layer is bonded with one side of a bubble cap resin plate and uses a resin type adhesive (II); and the short fiber is mixed fiber prepared by mixing plant fiber with p-aramid fiber according to a ratio of 2: 1 to 3: 1. The hot melt adhesive provided by the invention adopts a structure compounded with the moistureproof layer, so bonding between the hot melt adhesive and the bubble cap aluminum foil is improved and the integral moisture resistance of the hot melt adhesive is enhanced; one side, coated with the short fiber, of the resin type adhesive (I) is bonded with the surface of the aluminum foil, and one side of the bonding layer and polyvinyl chloride or other hard sheets are subjected to heat-sealing, so fast film formation is realized; and when heat-sealing temperature is 140 DEG C, the heat-sealing strength of a polyvinyl chloride hard sheet is improved by 45% or above.

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