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GB/T 43314-2023: Silicone rubber - Determination of phenyl and vinyl content - 1H-NMR method
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Silicone rubber - Determination of phenyl and vinyl content - 1H-NMR method
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GB/T 43314-2023
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PDF similar to GB/T 43314-2023
Basic data | Standard ID | GB/T 43314-2023 (GB/T43314-2023) | | Description (Translated English) | Silicone rubber - Determination of phenyl and vinyl content - 1H-NMR method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G34 | | Classification of International Standard | 83.060 | | Word Count Estimation | 10,149 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43314-2023: Silicone rubber - Determination of phenyl and vinyl content - 1H-NMR method---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.
ICS 83:060
CCSG34
National Standards of People's Republic of China
Determination of phenyl and vinyl content of silicone rubber
H NMR
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed by China Petroleum and Chemical Industry Federation:
This document is under the jurisdiction of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35):
This document was drafted by: Shandong University, Wuhan Huasen Plastic Co:, Ltd:, Jiangxi Lanxinghuo Silicone Co:, Ltd:, Suzhou Henry Communications
Materials Co:, Ltd:, Shandong Dongyue Silicone Materials Co:, Ltd:, Zhejiang Hongyun Rubber and Plastic Co:, Ltd:, Shandong Yanggu Huatai Chemical Co:, Ltd:
Co:, Ltd:, Weihai Industrial Technology Research Institute of Shandong University, Zhonghao Chenguang Chemical Research Institute Co:, Ltd:, Electric Power Department of Guangdong Power Grid Co:, Ltd:
Research Institute, Jinan Shichuang Youlian Silicone Technology Co:, Ltd:, Tianjin Huanyu Rubber and Plastic Co:, Ltd:, Shenzhen Dongcheng Electronics Co:, Ltd:
Division, Ruijin Lequn Plastic Technology Co:, Ltd:, Yiweiyi Rubber Research Institute Co:, Ltd:, China Petrochemical Corporation Beijing Beihua
Yanshan Branch of the Institute, China National Petroleum Corporation Jilin Petrochemical Branch, Zhenjiang Chimei Chemical Co:, Ltd:, Liaoning Provincial Metrology Science
Research Institute, Shenyang Rubber Research and Design Institute Co:, Ltd:
The main drafters of this document: Zhou Chuanjian, Zhang Chen, Liu Jing, Wang Ying, Gao Dongjing, Zhang Liben, Yigang, Chen Qianzheng, Fangtian, Hao Jinghao, Shi Lilong,
Hou Yan, Zhang Yalin, Cheng Shundi, Lang Dandan, Ning Geng, Li Bicheng, Wei Chuixian, Chen Jie, Fu Qiang, Zhang Li, Wang Chao, Bu Shaohua, Luo Junjie, Wang Bo,
Zhang Lijuan, Yin Xueyu, Kang Xiaotian:
Determination of phenyl and vinyl content of silicone rubber
H NMR
Warning: Personnel using this document should have practical experience in regular laboratory work: This document does not address all possible security issues
It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in relevant national laws and regulations:
1 Scope
This document describes a method for the determination of phenyl and vinyl content in silicone rubber by proton nuclear magnetic resonance spectroscopy:
This document applies to monophenylmethylvinyl silicone rubber raw rubber (MPVMQ) and diphenylmethylvinyl silicone containing phenyl groups in the side chain:
Rubber raw rubber (DPVMQ) and methylvinyl silicone rubber raw rubber (VMQ) without phenyl groups in the side chain:
This document does not apply to phenylene silicone rubber:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 15340 Natural and synthetic raw rubber sampling and sample preparation methods
3 Terms and definitions
There are no terms or definitions to be defined in this document:
4 Principles
Dissolve a certain amount of silicone rubber raw rubber sample in deuterated tetrahydrofuran, and measure the NMR hydrogen of the sample under specified parameter conditions:
Spectrum, obtain the peak areas of different protons in phenyl, vinyl and methyl groups: Through the chemical shift and peak integrated area of protons under different chemical environments
value to determine the phenyl and vinyl content in silicone rubber:
5 reagents
Deuterated tetrahydrofuran (C4D8O): purity greater than 99:5% (mole fraction), does not contain tetramethylsilane (TMS) internal standard, NMR grade:
6 Instruments and equipment
6:1 Fourier transform nuclear magnetic resonance spectrometer (FT-NMR): 1H resonance frequency is 400MHz or higher:
6:2 Analytical balance: accuracy is 0:1mg:
6:3 Sample tube: outer diameter is 5mm, made of quartz:
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