| Study on Air Bubble Elimination and Properties of Addition Crosslinking HTV Liquid Silicone Rubber |
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| DOI： |
| Key Words: HTV silicone rubber；bubble；physical property；resistivity |
| Author Name | Affiliation | | TANG Long-xiang | Hefei University of Technology | | CHENG Ming-xing | Hefei University of Technology | | LIU Chun-hua | Hefei University of Technology | | ZHAI Song-tao | Hefei University of Technology |
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| Abstract: |
| The effects of crosslinking agent，catalyst and defoamer on the curing time，electric insulation and physical properties of addition crosslinking HTV liquid silicone rubber were investigated.The results showed that，as the addition level of crosslinking agent or catalyst increased，the curing time of silicone rubber was shortened，the resistivity decreased at first and then increased，Shore A hardness changed little，tensile strength increased at first and then decreased，and the amount of bubble in silicone rubber increased.Defoamer could effectively inhibit the formation of bubble in silicone rubber.The properties of silicone rubber were optimized when the addition level of crosslinking agent and catalyst was 0.95 and 1.05 phr respectively，and the mass fraction of pentaerythritol polyoxyethylene polyoxypropylene ether. |
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