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Research on RTV Vulcanization Performance Based on Hydrophobicity, SEM, FTIR and TGA

Published: 30 May 2020 Publication History

Abstract

To study the difference in performance of room temperature vulcanized silicone rubber(RTV) under different temperature and humidity, the hydrophobicity, hydrophobicity migration, functional groups, and thermal stability of RTV were analyzed by static contact angle method, SEM, FTIR and TGA. The contact angle test results indicates that the RTV hydrophobicity changed little with the increase of vulcanization temperature, while the hydrophobicity increased slightly with the increase of humidity. Both of the vulcanization temperature and humidity had evident effects on the hydrophobicity transfer of RTV. When the vulcanization temperature was 5°C and the vulcanization humidity was 95%, the transfer of hydrophobicity was better. The vulcanization humidity and temperature had large influence on the functional groups of RTV according to FTIR results. Compared with that of samples vulcanized at 25°C, the intensity of O-H and Si(CH3)3 peaks of samples vulcanized 5°C and 65°C is lower. The contents of functional groups of samples vulcanized at 15% relative humidity is obviously low. Meanwhile, vulcanization humidity and temperature affect the thermal stability of RTV. The thermal stability of RTV got worse at the vulcanization temperature of 5°C and the vulcanization humidity of 15%, 95%.

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cover image ACM Other conferences
ICITEE '19: Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering
December 2019
870 pages
ISBN:9781450372930
DOI:10.1145/3386415
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

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Published: 30 May 2020

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Author Tags

  1. FTIR
  2. Silicone rubber
  3. TGA
  4. Vulcanization humidity
  5. Vulcanization temperature

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