GB/T 33402-2016 in English
VALIDSilicone rubber compound―General purpose
- Issued on:2016-12-30
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 33402-2016硅橡胶混炼胶 一般用途》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
In-depth interpretation of the national standard for silicone rubber compounds
Background and significance of standard formulation
As an important high-performance material, silicone rubber is widely used in electronics, automobiles, construction and other fields. The formulation of GB/T33402-2016 "General Use of Silicone Rubber Compounds" fills the gap in the field of domestic silicone rubber compound standardization and provides a unified technical basis for product quality.
The standard is managed by the National Technical Committee for Standardization of Rubber and Rubber Products and proposed by the China Petroleum and Chemical Industry Federation. The main drafting units include Mai Gao Precision High-tech Materials (Shenzhen) Co., Ltd. and Shenyang Rubber Research and Design Institute Co., Ltd.
Classification and naming
According to the provisions of GB/T32365, general-purpose methyl vinyl silicone rubber compounds are divided into 8 categories according to the hardness of the vulcanized rubber, namely: VMQ20-G, VMQ30-G,...
| Category | Hardness (Shore A) | Applicable scenarios |
|---|---|---|
| VMQ20-G | 20±2 | Soft seals |
| VMQ90-G | 90±3 | High-strength components |
Performance Requirements and Test Methods
The performance requirements of silicone rubber compounds include density, hardness, tensile strength, etc. The specific indicators are as follows:
| Performance | VMQ20-G | VMQ30-G | ... |
|---|---|---|---|
| Density (Mg/m³) | 1.05~1.09 | 1.07~1.11 | ... |
Implementation Suggestions
To ensure the quality of silicone rubber compounds, companies should:
- Establish a sound quality management system
- Inspect and produce strictly in accordance with standards
- Strengthen employee training and improve operational level
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