今日有人提到loctite 3703的替代品问题，据说是用于四角邦定用途的。翻墙下载了一份TDS技术资料来学习了一下。
从资料显示此款产品是Acrylated urethane聚氨酯丙烯酸酯类型的，可由紫外线及可见光进行固化，尤其适用于软硬PVC和polycarbonate的粘接，资料显示此产品具有一定的触变性，但没有标识触变指数是多少。从资料显示并没有专门用于四角邦定，我印象中乐泰用于四角邦定的胶是另外几个型号，有些还是热固化的而不是紫外线固化的。
下面摘录一些数据如下：
PRODUCT DESCRIPTION
LOCTITE® 3703™ provides the following product characteristics:
Technology Acrylic
Chemical Type Acrylated urethane
Appearance (uncured) Bone-white to beige translucent pasteLMS
Components One component – requires no mixing
Viscosity Medium, thixotropic
Cure Ultraviolet (UV)/ visible light
Cure Benefit Production – high speed curing
Application Bonding
LOCTITE® 3703™ is primarily designed for bonding rigid and flexible PVC to polycarbonate where large gap filling capabilities (0.25mm) and a flexible joint are desired. Its flexibility enhances the load bearing and shock absorbing characteristics of the bond area. The product has shown excellent adhesion to a wide variety of substrates including glass, many plastics and most metals. The thixotropic nature of LOCTITE® 3703™ reduces the migration of liquid product after application to the substrate.
TYPICAL PROPERTIES OF UNCURED MATERIAL
Specific Gravity @ 25 °C 1.12
Viscosity, Brookfield – HBT, 25 °C, mPa·s (cP):
Spindle TB, speed 10 rpm, Helipath 18,000 to 35,000LMS
……
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loctite 3703 TDS (62.6 KB, 320 次)
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