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GB/T 46386.2-2025: Plastics - Poly(butylene adipate terephthalate)(PBAT)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
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GB/T 46386.2-2025: Plastics - Poly(butylene adipate terephthalate)(PBAT)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties

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National Standards of the People's Republic of China ICS 83.080.20CCS G 31 Polybutylene terephthalate (PBAT) plastic Molded and extruded materials Part 2.Sample Preparation and Performance Determination Plastics-Poly (butylene adipate terephthalate) (PBAT) molding and extrusion materials-Part 2.Preparation of test specimens and determination of properties Released on October 5, 2025 Implemented on 2026-05-01 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Foreword

This document conforms to GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting is scheduled. This document is Part 2 of GB/T 46386 "Plastics - Polybutylene terephthalate (PBAT) Molding and Extrusion Materials". GB/T 46386 has published the following parts. --Part 1.Naming Systems and Classification Basics; --Part 2.Sample preparation and performance determination. 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 and is under the jurisdiction of the National Technical Committee on Standardization of Bio-based Materials and Degradable Products (SAC/TC 380). This document was drafted by. Kingfa Science & Technology Co., Ltd., Shanghai Kingfa Science & Technology Development Co., Ltd., and Donghua Engineering & Technology Co., Ltd. Zhonghua Donghua Tianye New Materials Co., Ltd., Shenzhen Hongcai New Materials Technology Co., Ltd., Beijing Technology and Business University, Tongcheng Chemical (China) Co., Ltd. The company, Yangzhou Huitong Technology Co., Ltd., Zhejiang Boxia Biomaterials Co., Ltd., Jinhui Zhaolong High-tech Co., Ltd., Zhejiang Jiangyin Innovative Materials Technology Co., Ltd., Shanghai Juyou Chemical Co., Ltd., Shandong Dawn Degradable Materials Co., Ltd., Shandong Ruian Biotechnology Co., Ltd. Limited Liability Company, Hubei Yihua Degradable New Materials Co., Ltd., Huafeng Group Co., Ltd., Sinopec Yizheng Chemical Fiber Co., Ltd., Wanhua Chemical Group Co., Ltd., Ningbo Jialian Technology Co., Ltd., Tsinghua University, Sichuan University, and Yuansu Huitong New Materials (Yangzhou) Co., Ltd. Limited Liability Company, Hefei Hengxin Life Technology Co., Ltd., Zhejiang Huafa Ecological Technology Co., Ltd., Sinopec (Dalian) Petrochemical Research Institute Limited Liability Company, Light Industry Plastics Processing and Application Research Institute. The main drafters of this document are. Chen Pingxu, Guo Molin, Ouyang Chunping, Pei Qiong, Zhang Bao, Yang Hong, Diao Xiaoqian, Hu Jing, Zhang Qian, Zhao Yanchao, and Zhang Yuesheng. An Xiaoshan, Fan Wuyuan, Ma Shuangyi, Ding Yanghuiqin, Li Zonghua, An Shuyi, Song Aihua, Zhu Jingli, Shi Lufei, Ma Ning, Wang Xiong, Guo Baohua, Wang Yuzhong Shen Kunliang, Yan Deping, Sun Yuanzheng, Zhou Feng, Tu Zhu, Li Ziyi.

introduction

"Plastic Polybutylene Terephthalate (PBAT) Molding and Extrusion Materials" aims to establish universally applicable materials for polyethylene terephthalate (PBAT) molding and extrusion. The guidelines for the nomenclature, classification, sample preparation, and performance determination of butyl adipate (PBAT) molding and extrusion materials are proposed to be divided into two parts. constitute. --Part 1.Naming System and Classification Basis. The aim is to standardize the naming and classification of PBAT thermoplastic materials, establishing a system that includes... A classification system of characteristic performance values, etc., is used to distinguish different types of PBAT molding and extrusion materials. --Part 2.Sample Preparation and Performance Determination. The aim is to establish sample preparation methods and performance parameters suitable for PBAT materials. Measurement items, methods, and conditions. Polybutylene terephthalate (PBAT) plastic Molded and extruded materials Part 2.Sample Preparation and Performance Determination 1.Scope This document describes the sample preparation and performance determination of polybutylene terephthalate (PBAT) molding and extrusion materials. Methods. This document also specifies the requirements for the pretreatment of test materials and the conditioning of specimens before testing. This document applies to direct polycondensation or chain extension methods using terephthalic acid (or its dimethyl ester), adipic acid, and 1,4-butanediol as the main raw materials. PBAT resin produced by [method name missing].

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below. 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 1033.1 Determination of density of non-foamed plastics – Part 1.Impregnation method, liquid pyrometer method and titration method GB/T 1034 Determination of water absorption of plastics GB/T 1040.2 Determination of tensile properties of plastics - Part 2.Test conditions for molded and extruded plastics GB/T 1043.1 Determination of impact properties of simply supported plastic beams - Part 1.Non-instrumental impact testing GB/T 1043.2 Determination of impact properties of simply supported plastic beams - Part 2.Instrumented impact testing GB/T 1633 Determination of Vicat softening temperature (VST) of thermoplastics GB/T 1634.2 Determination of temperature of deformation under load for plastics – Part 2.Plastics and hard rubber GB/T 2035 Plastics Terminology GB/T 2406.2 Determination of flammability of plastics by oxygen index method - Part 2.Room temperature test GB/T 2408 Determination of flammability of plastics - Horizontal and vertical methods GB/T 2918 Standard Environment for Conditioning and Testing of Plastic Specimens GB/T 3682.1 Measurement of melt mass flow rate (MFR) and melt volumetric flow rate (MVR) of thermoplastics Part 1.Standard Methods GB/T 9341 Determination of Flexural Properties of Plastics GB/T 9345.1 Determination of ash content in plastics – Part 1.General method GB/T 11115 Polyethylene (PE) Resin GB/T 11546.1 Determination of creep properties of plastics - Part 1.Tensile creep GB/T 12006.2 Polyamide Plastics - Part 2.Determination of Moisture Content GB/T 14190 Test methods for fiber grade polyester (PET) chips GB/T 16422.2 Plastics - Laboratory Light Source Exposure Test Methods - Part 2.Xenon Arc Lamps GB/T 16578.2 Determination of tear resistance of plastic films and sheets - Part 2.Elmendor method GB/T 17037.1 Plastics - Preparation of Injection Molded Specimens from Thermoplastic Materials - Part 1.General Principles and Multipurpose Specimens and Long Specimens Preparation of strip specimens ...