| Preparation and Properties of Modified Calcium Hydroxide Filled Silicone Rubber |
| Received:September 13, 2021 Revised:September 13, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.04.0278 |
| Key Words: silicone rubber；modified calcium hydroxide；crosslinking density；odor level |
| Author Name | Affiliation | E-mail | | WANG Xin | Qingdao University of Science and Technology | 1311105110@qq.com | | LI Chaoqin* | Qingdao University of Science and Technology | chaoqinli@sina.com |
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| Abstract: |
| The odor level of the silicone rubber vulcanized by 2，5-dimethyl-2，5-di-（tert-butylperoxy）
hexane was reduced by adding modified calcium hydroxide，and the influence of modified calcium hydroxide
on the vulcanization characteristics，dynamic mechanical properties and physical properties of the silicone
rubber was studied.The results showed that modified calcium hydroxide could affect the vulcanization
process of the silicone rubber，absorb the by-products produced in the vulcanization process，and promote the
vulcanization reaction，which resulted in higher crosslinking density，higher Shore A hardness，higher tensile
stress at a give elongation and tensile strength of the silicone rubber.When the addition level of modified
calcium hydroxide was 2 phr，the overall performance of the silicone rubber was the best. |
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