GB/T 32678-2016Rubber compounding ingredients - Highly dispersible silica, precipitated, hydrated (English PDF)
橡胶配合剂 高分散沉淀水合二氧化硅
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 14, 2016
Implementation date
January 1, 2017
Scope
GB/T 32678-2016 is the English-translated version of 橡胶配合剂 高分散沉淀水合二氧化硅.
GB/T 32678-2016 is the Chinese standard "Rubber compounding ingredients - Highly dispersible silica, precipitated, hydrated".
Its scope clause reads: This standard specifies the terms and definitions of high dispersion precipitation of hydrated silicon dioxide (highly dispersed silica), classification and naming methods, requirements and testing Test methods, inspection rules and packaging, labeling, storage and shipping requirements.
This standard applies to rubber compound high dispersion precipitation of hydrated silicon dioxide. Its clauses include normative reference documents; terms and definitions.
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Document preview — GB/T 32678-2016
National Standard of the People's Republic of China
- ICS
- 83.040.20
- Classification
- G 49
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 terms and definitions
- 3.1 Highly dispersed precipitated hydrated silica highly undispersiblesilica, precipitated, hydrated
- 3.2 Median particle size
- 3.3 Particles account for
1 Scope
This standard specifies the terms and definitions of high dispersion precipitation of hydrated silicon dioxide (highly dispersed silica), classification and naming methods, requirements and testing
Test methods, inspection rules and packaging, labeling, storage and shipping requirements.
This standard applies to rubber compound high dispersion precipitation of hydrated silicon dioxide.
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.
GB/T 528 vulcanized rubber or thermoplastic rubber tensile stress and strain properties of the determination
GB/T 531.1 vulcanized rubber or thermoplastic rubber press hardness test method Part 1. Shore hardness tester (Shore hardness)
GB/T 1232.1 Unvulcanized rubber - Determination of disc shear viscometer - Part 1. Determination of Mooney viscosity
GB/T 6030 Rapid comparison of carbon black and carbon black/silica dispersion in rubber
GB/T 6038 rubber test compound dosing, kneading and vulcanizing equipment and operating procedures
Rubber vulcanization - Determination of vulcanization properties - Disk oscillating vulcanization method
GB/T 10722 Determination of total surface area and surface area of carbon black - Nitrogen adsorption method
GB/T 16584 Rubber vulcanization properties were determined using a rotorless vulcanizer
GB/T 23656 Rubber compounding agent - Determination of specific surface area of hydrated silica by CTAB method
GB/T 32698 Rubber compounding agent - Determination of particle size distribution of hydrated silicon dioxide - Laser diffraction method
Identification of HG/T 2404 Rubber Composites for Precipitation of Hydrated Silica in
HG/T 3061 rubber compound precipitation of hydrated silicon dioxide
3 terms and definitions
The following terms and definitions apply to this document.
3.1 Highly dispersed precipitated hydrated silica highly undispersiblesilica, precipitated, hydrated
Under certain conditions through the silicate solution and acid neutralization, precipitation reaction obtained in the form of amorphous particles in the form of white inorganic material. In the rubber dispersion of 9.5 or more. The chemical formula is SiO2 · nH2O.
3.2 Median particle size
D50
The particle size of the sample when the cumulative percentage of the laser particle size distribution reaches 50% is in microns (µm).
3.3 Particles account for
R18
The cumulative percentage of particles in the laser particle size distribution curve with a diameter greater than 18 µm, expressed in%.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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