Page 79 - 《橡塑技术与装备》2025年11期

材料与配方
MATERIALS AND FORMULATIONS

度、 最 大 伸 长 率、 撕 裂 强 度、 硬 度 变 化 值、 拉 伸 强 胶性能研究 [J]. 特种橡胶制品，2024,45(5):32-51.
度变化率、伸长率变化率及体积电阻率分别为 3.91 [3] 郭振芳，胡雪岩，薄学微，等 . 气相法和沉淀法白炭黑对混炼
硅橡胶性能的影响 [J]. 电磁避雷器，2016(5):28-34.
MPa、296%、15.37 N/mm、0、+2.05%、-8.8% 及 [4] 毛义梅，田庆丰，王廷鹏，等 . 纳米二氧化硅的制备及其在橡
9.53×10 13 ；同时改姓二氧化硅在优化成本，降低混炼 胶中的应用研究进展 [J]. 橡胶工业，2004,51(6):348-351.
[5] 谢遂志 . 橡胶工业手册 [M]. 北京 ：化学工业出版社，
能耗，减少环境污染等方面具有明显的优势。
1989,230.
[6] 翁国文．配合与塑混炼操作技术 [M]．徐州 ：中国矿业大学出
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[2] 梁火寿，董杰，谭信文，等 . 气相法 / 沉淀法白炭黑填充氟橡

Research on the application of modified silica in silicone rubber

1
Liu Hao , Zhao Guiying 2
(1. Hecheng Special Rubber (Taicang) Co. LTD., Taicang 215400, Jiangsu, China;
2. Xuzhou College of Industrial Technology, Xuzhou 221140, Jiangsu, China)
Abstract: The use of modified silica in silicone rubber was investigated, focusing on the impact of its type
on the processability, mechanical properties, aging properties, and electrical properties of the silicone rubber.
Performance comparisons were also made with precipitated silica and fumed silica-filled rubber compounds.
The results indicated that the modified silica-filled rubber compound exhibited a shorter processing optimum
cure time (T 90 ) and higher curing efficiency. Compared to precipitated silica and fumed silica-filled rubber
compounds, the modified silica-filled rubber compound showed lower tensile strength and elongation,
but higher hardness, tear strength, and insulation resistivity. Among the two types of modified silica-filled
rubber compounds, No. 2 modified silica-filled rubber compound demonstrated superior comprehensive
performance, with tensile strength, maximum elongation, tear strength, change in hardness after aging, change
rate in tensile strength, change rate in elongation, and volume resistivity of 3.91 MPa, 296%, 15.37 N/mm, 0, +2.05%,
13
-8.8%, and 9.53×10 Ω·m, respectively. Additionally, modified silica offers significant advantages in optimizing
costs, reducing mixing energy consumption, and minimizing environmental pollution.
Key words: modified silica; silicone rubber; performance
（R-03）

年
2025 第 51 卷 ·35·