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ACCELERATOR-FREE THIN-WALLED RUBBER VULCANIZATES FROM LATEX
ACCELERATOR-FREE THIN-WALLED RUBBER VULCANIZATES FROM LATEX
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机译:乳胶制无助剂的薄壁硫化橡胶
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摘要
Thin-walled rubber articles for use contact with living tissue or with materials to be delivered to living tissue are prepared from aqueous latex of either natural rubber or synthetic cis-1,4-polyisoprene by vulcanization to produce both carbon-carbon and carbon-(sulfur)SUBn/SUB-carbon crosslinks, the vulcanization being performed in the absence of any compounding components that contain secondary amine groups or any components that have a tendency to produce nitrosamines. While sulfur activators may be included, it is preferable that no sulfur accelerators at all be included. Thin-walled rubber articles formed from the latex surprisingly exhibit a combination of high tensile strength, high ultimate percent elongation, and low 500% tensile modulus. The process is particularly effective in the manufacture of thin-walled articles from synthetic cis-1,4-polyisoprene.
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机译:由天然橡胶或合成的顺式1,4-聚异戊二烯的水性胶乳通过硫化制备碳-碳和碳-(硫) n SUB>-碳交联键,在没有任何包含仲胺基的化合物组分或任何倾向于产生亚硝胺的组分的情况下进行硫化。尽管可以包括硫促进剂,但是优选根本不包括硫促进剂。由胶乳形成的薄壁橡胶制品令人惊讶地显示出高拉伸强度,高极限伸长率和低500%拉伸模量的组合。该方法在由合成的顺式1,4-聚异戊二烯生产薄壁制品中特别有效。
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