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How to discriminate the wetting property of the latex tube is good or bad?
Latex tube surface tension size showed that the latex uniform distribution in the surface properties of solid - the so-called wetting performance.
Rubber is not soluble in water, but the latex contains a great deal of surfactant surface tension of water is reduced, such as protein, fatty acids, they can reduce the surface tension of latex. If the total solid content of 38%~40% latex, its surface tension is about 38~40mN/m, far more than water (72Mn/m) is low, and thus on the hydrophilic surface such as cloth, leather and other moist and penetration ability can often with decreasing the surface tension increased, production when latex still can not meet the process requirements, need to adding some surface active agent, to further improve the surface properties and increase wettability.
This article from the Shenzhen City Qiyu Silicone Rubber Co., Ltd.: http://www.szhcty.com/news_v.asp? Id=222
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