GB/T 33402-2016Silicone rubber compound—General purpose (English PDF)

1 Scope

This standard specifies the general use of silicone rubber compound classification and naming, requirements, inspection rules and signs, packaging, transportation, storage.

This standard applies to the production of buttons, seals, industrial miscellaneous items such as general use of silicone rubber compound.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

Rubber, vulcanized or thermoplastic elastomers - Determination of tensile stress - strain properties GB/T GB/T 529-2008 Determination of tear strength of vulcanized rubber or thermoplastic rubber (pants, right angle and crescent specimens)

GB/T 531.1-2008 Vulcanized rubber or thermoplastic rubber - Test method for hardness - Part 1. Shore 's hardness method (Shao

Hardness)

Rubber, vulcanized or thermoplastic - Determination of the density of rubbers GB/T 533-2008

GB/T 6038 rubber test compound dosing, kneading and vulcanizing equipment and operating procedures

Representation and Judgment of Revision Rule and Limit Value of GB/T 8170 Numbers

Classification and System Nomenclature of Silicone Rubber Compounds

3 abbreviations

The following abbreviations apply to this document.

DMBHa. 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane [2,5-Dimethyl-2,5-di (tert-butylperoxy) hexane]

[GB/T 21871-2008, 3.20]

Note. vulcanization agent; commonly known as. double 2,5 (read as double five).

Classification and naming

According to the provisions of GB/T 32365, general purpose methyl vinyl silicone rubber compound according to its vulcanized rubber hardness is divided into the following eight categories, and

Expressed as.

VMQ20-G, VMQ30-G, VMQ40-G, VMQ50-G, VMQ60-G, VMQ80-G, VMQ80-G, VMQ 90-G.

5 request