GB/T 32366-2025Biodegradable poly(butylene adipate terephthalate) (PBAT) (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document replaces GB/T 32366-2015 "Biodegradable Polybutylene Terephthalate-Adipate (PBAT)" and Compared with GB/T 32366-2015, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Added a chapter on “Classification” (see Chapter 4);

b) The "sensory" requirement has been changed, and the requirement of "no mechanical impurities and no visible black spots" has been added; (see 5.1, 3.1 of the 2015 edition);

c) Changed "Physical and Chemical Properties" (see 5.2, 3.2 of the 2015 edition). changed "moisture content" to "water content" (see Table 1 in 5.2 No. 2, No. 4 in Table 1 of 3.2 of the 2015 edition), change "tensile strength at break" to "tensile stress at break" (see Table 1 of 5.2 No. 6, No. 7 in Table 1 of 3.2 of the 2015 edition), change "tensile strain at break" to "tensile strain at break" (see 5.2 Table 1, No. 7, Table 1, No. 8 in 3.2 of the 2015 edition), deleted "flexural strength", "flexural modulus" and "Vicat softening point" (see In the 2015 edition, Table 1, No. 9, 10, and 11 in 3.2, added “Terephthalic acid composition ratio” and “Fisheye (0.3 mm~ 2.0mm)”, “Fisheye (>=2.0mm)”, “Melt expansion ratio”, “Simply supported beam notched impact strength” requirements (see 5.2 No. 10, 11, 12, 13, 14);

d) Added "aging resistance" (see 5.4);

e) The “Sample Preparation” method has been changed (see 6.1, 4.1 of the 2015 edition);

f) The “sensory” test method has been changed (see 6.3, 4.3 of the 2015 edition);

g) The test method for “carboxyl content” has been changed (see 6.11, 4.8 of the 2015 edition);

h) The test method of “tensile breaking stress and tensile breaking strain” has been changed (see 6.9, 4.10 of the 2015 edition);

i) Deleted the test methods of “flexural strength and flexural modulus” and “Vicat softening point” (see 4.9, 4.11, 4.12 of the 2015 edition);

j) Added “Terephthalic acid composition ratio”, “Fisheye”, “Melt expansion ratio”, “Simply supported beam notched impact strength”, “Hydrolysis resistance”, “Light aging resistance” "Chemical" test method (see 6.12~6.15, 6.17, 6.18).

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed and coordinated by the National Technical Committee for Standardization of Bio-based Materials and Degradable Products (SAC/TC380).

This document was drafted by: Beijing Technology and Business University, Red Avenue Chemical (China) Co., Ltd., Yangzhou Huitong Technology Co., Ltd., Zhuhai Jinfa Biomaterials Co., Ltd., Jinhui Zhaolong High-tech Co., Ltd., Shanghai Hongrui Biotechnology Co., Ltd., Xinjiang Lanshan Tunhe Technology Co., Ltd., Shandong Ruian Biotechnology Co., Ltd., Shandong Dawn Degradable Materials Co., Ltd., Shanghai Juyou Chemical Co., Ltd., Sinochem Learn from Donghua Tianye New Materials Co., Ltd., Sinopec Yizheng Chemical Fiber Co., Ltd., Huafeng Group Co., Ltd., Hubei Yihua Degradable New Materials Materials Co., Ltd., Gansu Mogao Juhe Environmental Protection New Materials Technology Co., Ltd., Zhejiang Lvhe Ecological Technology Co., Ltd., Wanhua Chemical Group Co., Ltd., Zhejiang Huafa Ecological Technology Co., Ltd., Sinopec (Dalian) Petrochemical Research Institute Co., Ltd., Ningbo Jialian Technology Co., Ltd.

Co., Ltd., Tsinghua University, Sichuan University, Yangzhou Huitong New Materials Co., Ltd., Hefei Hengxin Life Science and Technology Co., Ltd., Zhejiang Hai Zheng Biomaterials Co., Ltd., Shenzhen Hongcai New Materials Technology Co., Ltd., Guizhou Tobacco Science Research Institute, Fuling Technology Co., Ltd.

Company, Guangdong Chongxi Environmental Protection Technology Co., Ltd., Anhui Huachi Environmental Protection Technology Co., Ltd., Light Industry Plastic Processing Application Research Institute, Wuxi Huachen Mechanical and Electrical Industry Co., Ltd., Pulisi Biotechnology Co., Ltd., Henan Longdu Tianren Biomaterials Co., Ltd., Shanxi Huayang New Materials Co., Ltd. Ltd.

The main drafters of this document are: Hu Jing, Zhang Qian, Zhao Yanchao, Zhang Yuesheng, Huang Jian, Fan Wuyuan, Xu Youli, Ding Jianping, An Shuyi, Li Zonghua, Ding Yanghuiqin, Liu Jianhua, Zhang Bao, Liu Jun, Shi Lufei, Zhu Jingli, Zhang Yuanhua, Song Aihua, Bi Zhiliang, Ye Xinghu, Mi Kejun, Ma Ning, Sun Yuanzheng, Lü Shafeng, Zhou Feng, Liao Sha, Wang Xiong, Guo Baohua, Wang Yuzhong, Shen Kunliang, Yan Deping, Zhang Fuxiang, Ruan Zhaolu, Yang Hong, Gao Weichang, Hu Xinfu, Tao Yang, Wei Jie, Wang Chunqiu, Li Ziyi, Deng Jianping, Yu Lihua, Yang Tao, Zhang Yongsheng, Zhao Zhongchao, Tong Mingquan.

The previous versions of this document and the documents it replaces are as follows.

— First published in 2015 as GB/T 32366-2015;

— This is the first revision.

Biodegradable Polybutylene Terephthalate-Adipate (PBAT)

1 Scope

This document specifies the classification, requirements, inspection and It describes the test rules, marking, packaging, transportation and storage, and the corresponding test methods.

This document is applicable to the direct polycondensation method or chain extension method using terephthalic acid (or its dimethyl ester), adipic acid, and 1,4-butanediol as the main raw materials.

Produced polybutylene terephthalate adipate resin.

2 Normative references

GB/T 601-2016

GB/T 1033.1

GB/T 1040.2-2022

GB/T 1043.1-2008

GB/T 2547

GB/T 2918

GB/T 3682.1-2018

GB/T 3682.2-2018

GB/T 6682

GB/T 9345.1

GB/T 11115-2009

GB/T 12006.2-2009

GB/T 14190-2017

GB/T 16422.2-2022

GB/T 17037.1

GB/T 19466.3

GB/T 41010

3 Terms and definitions

The following terms and definitions apply to this document.