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GB/T 38352-2019: Thermoplastic elastomers - Designation and specification for premixture
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 38352-2019 | English | 139 |
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Thermoplastic elastomers - Designation and specification for premixture
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GB/T 38352-2019
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Basic data | Standard ID | GB/T 38352-2019 (GB/T38352-2019) | | Description (Translated English) | Thermoplastic elastomers - Designation and specification for premixture | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G35 | | Classification of International Standard | 83.060 | | Word Count Estimation | 7,798 | | Date of Issue | 2019-12-31 | | Date of Implementation | 2020-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 38352-2019: Thermoplastic elastomers - Designation and specification for premixture---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Thermoplastic elastomers--Designation and specification for premixture
ICS 83.060
G35
National Standards of People's Republic of China
Specification for thermoplastic elastomer premix grades
2019-12-31 release
2020-11-01 implementation
State Administration of Market Supervision
Published by the National Standardization Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35).
This standard was drafted. Cixi Shanjin Polymer Plastic Co., Ltd., China Light Union (Dalian) Packaging Research Institute Co., Ltd., Ningguo Rui
Pu Seal Co., Ltd., Hunan University, Ningbo University, Daoyi Polymer (Ningbo) Co., Ltd., Ningbo Fenghua Xikou Jiuyuan Co., Ltd.
Company, Beilun District of Ningbo City Xinyu Keyu Abrasives Factory, Cixi Yunxing Electronic Technology Co., Ltd., Ningbo Jindi Engineering Plastics Co., Ltd., Ningbo Yong
He New Material Technology Co., Ltd.
The main drafters of this standard. Guo Yunhua, Luo Xiao, Fang Yong, Li Delong, Luo Yunjie, Huang Lizhi, Cen Jianda, Mao Jianping, He Shijun, Huang Jingkai,
Shen Guozhen and Feng Zhen.
Specification for thermoplastic elastomer premix grades
1 Scope
This standard specifies the principles and format requirements for the preparation of thermoplastic elastomer premix grades.
This standard applies to thermoplastic elastomer premixes.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 22027 Thermoplastic Elastomer Nomenclature and Acronyms
3 Branding principles
3.1 The expression of thermoplastic elastomer premix grades should be concise and general.
And feature information, you can add some additional information if necessary.
3.2 When two or more synthetic thermoplastic elastomers are used as a base material to produce a premix, the letter of the base material category with the largest mass fraction
It is the category letter of the premixed grade; when there are two or more substrates and the mass fraction is the same, the substrate category letters are ordered by the English alphabet
In order, the letter of the first substrate category is the category letter of the premix grade.
3.3 The category letters shall meet the requirements of GB/T 22027.
Note. The category letter A represents polyamide-based thermoplastic elastomer, C represents copolyester-based thermoplastic elastomer, O represents olefin-based thermoplastic elastomer, and S generation
Table styrene-based thermoplastic elastomers, U for urethane-based thermoplastic elastomers, V for thermoplastic vulcanizates, Z for unclassified other
He thermoplastic elastomer.
4 Format requirements
The grade of the thermoplastic elastomer premix generally consists of 8 characters;
The first character. category letter information of synthetic thermoplastic elastomers. The category letters should comply with the provisions of GB/T 22027.
The second character. indicates the processing method, 1 for extrusion, 2 for injection molding, 3 for both extrusion and injection molding, and 4 for blow molding.
The third and fourth characters. the hardness value.
The fifth character. indicates the Shore hardness unit, A stands for Shore A, D stands for Shore D.
The sixth character. indicates the color, black is B, white is W, natural color is N, transparent is T, and other is O.
The seventh and eight characters. feature information added by each company.
There is a need to add ninth and tenth company characteristic symbols.
The thermoplastic elastomer premix grades have the following format.
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