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GB/T 46327-2025: Neodymium-catalysed butadiene rubber
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GB/T 46327-2025	English	209	Add to Cart	3 days [Need to translate]	Neodymium-catalysed butadiene rubber

GB/T 46327-2025: Neodymium-catalysed butadiene rubber

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ICS 83.060 CCSG35 National Standards of the People's Republic of China Neodymium butadiene rubber Published on 2025-10-05 Implemented on May 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

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 involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Rubber and Rubber Products (SAC/TC35). This document was drafted by. Dushanzi Petrochemical Branch of China National Petroleum Corporation (CNPC) and China National Petroleum Corporation (CNPC). Research Institute of Petrochemical Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Beijing Yanshan Branch of China Petroleum & Chemical Corporation, China PetroChina Sichuan Petrochemical Co., Ltd., China National Petroleum Corporation Jinzhou Petrochemical Branch, and Zhejiang Transfar Synthetic Materials Co., Ltd. Limited Liability Company, Zhongce Rubber Group Co., Ltd., Sailun (Dongying) Tire Co., Ltd., Double Coin Group (Xinjiang) Kunlun Tire Co., Ltd. company. The main drafters of this document are. Zhan Xuqin, Li Ji, Cong Rixin, Dong Zhijun, Hu Bin, Bi Jifu, Yu Hongguang, Gou Ke, Li Chuangguang, and Yang Guangming. Du Yang, Wang Shining, Wang Danling, Wang Kun, Zhou Junjie, Yang Changhui, Dong Jing, Zhang Zhongming, Yang Liang, Liu Yuliang, Li Qiang, Wen Jiahui. Neodymium butadiene rubber

1 Scope

This document specifies the product grades, technical requirements, inspection rules, marking and accompanying documents, packaging, transportation and storage of neodymium butadiene rubber. The document describes the corresponding test methods for the technical specifications. This document applies to high cis polybutadiene rubber prepared by solution polymerization of 1,3-butadiene in a neodymium-based catalyst system.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber GB/T 1232.1 Determination of Mooney viscosity of uncured rubber using a disk shear viscometer - Part 1.Determination of Mooney viscosity GB/T 4498.1-2025 Determination of ash content in rubber—Part 1.Muffle furnace method GB/T 5577 Specification for Synthetic Rubber Grades GB/T 8660-2018 Evaluation Method for Solution Polymerized Butadiene Rubber (BR) GB/T 9869.3 Determination of vulcanization properties of rubber using a vulcanizing apparatus – Part 3.Rotorless vulcanizing apparatus GB/T 15340 Sampling and Sample Preparation Methods for Natural and Synthetic Raw Rubber GB/T 19187 Sampling Inspection Procedures for Synthetic Raw Rubber GB/T 19188 Guidelines for the Storage of Natural and Synthetic Raw Rubber GB/T 24131.1-2018 Determination of volatile matter content in raw rubber – Part 1.Hot roller method and oven method GB/T 24131.2 Determination of volatile matter content in raw rubber – Part 2.Automatic analyzer with infrared drying unit – Heating loss Heavy Law GB/T 24797.1 Rubber Packaging Films - Part 1.Butadiene Rubber (BR) and Styrene-Butadiene Rubber (SBR) SH/T 1727 Determination of Microstructure of Butadiene Rubber by Infrared Spectroscopy SH/T 1759 Determination of molecular weight distribution of polymers in solution by gel permeation chromatography

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined.

4 Product Brands

Neodymium butadiene rubber product grades should comply with the provisions of GB/T 5577.The product grades specified in this document are consistent with the original brands of some manufacturers. See Appendix A for the corresponding information for the number. ...