Title:
FUNCTIONAL MODIFICATION OF RECYCLED RUBBER MATERIAL AND APPLICATION THEREOF IN SAFETY GLOVES
Document Type and Number:
WIPO Patent Application WO/2024/067890
Kind Code:
A1
Abstract:
The present invention relates to the technical field of rubber materials. Disclosed are a functional modification of a recycled rubber material and an application thereof in safety gloves. A hyperbranched nitrile rubber-polyurethane containing a bispirocyclic phosphate structure is used as a filling modifier, and is blended and modified with nitrile rubber and recycled nitrile rubber. The hyperbranched polyurethane has a three-dimensional branched network structure, a main chain contains a nitrile rubber molecular chain, good interface compatibility is present with the nitrile rubber and the recycled nitrile rubber, and a three-dimensional cross-linked network is formed, thereby improving mechanical properties such as the tensile strength and the tearing strength of the recycled rubber composite material. The bispirocyclic phosphate structure which has high flame retardancy and thermal stability increases the thermal decomposition temperature, the carbon formation amount and the heat resistance of the recycled rubber composite material, and the practical applications of the recycled nitrile rubber composite material in special protective articles such as safety gloves are expanded.
More Like This:
Inventors:
ZHANG JIANFANG (CN)
THAMIRA DILANTHA RANASINGHE RANASINGHE ARACHCHIGE DON (CN)
ZHANG JIADI (CN)
LIU GUOHAI (CN)
THAMIRA DILANTHA RANASINGHE RANASINGHE ARACHCHIGE DON (CN)
ZHANG JIADI (CN)
LIU GUOHAI (CN)
Application Number:
PCT/CN2023/132893
Publication Date:
April 04, 2024
Filing Date:
November 21, 2023
Export Citation:
Assignee:
ZHEJIANG KANGLONGDA SPECIAL PROTECTION TECH CO LTD (CN)
International Classes:
C08L9/04; A41D19/00; A41D19/015; C08G18/32; C08G18/65; C08L9/02; C08L17/00; C08L75/14; C08L75/16
Foreign References:
| CN115521517A | 2022-12-27 | |||
| US6251994B1 | 2001-06-26 | |||
| CN102731864A | 2012-10-17 | |||
| CN104650415A | 2015-05-27 | |||
| CN105542174A | 2016-05-04 | |||
| CN106977681A | 2017-07-25 | |||
| CN111333883A | 2020-06-26 | |||
| CN111333929A | 2020-06-26 | |||
| CN114805966A | 2022-07-29 | |||
| JP2007031507A | 2007-02-08 | |||
| US20180312671A1 | 2018-11-01 |
Other References:
ZHANG XIN: "Study on the Application of Reclaimed NBR", CHINA RESOURCES COMPREHENSIVE UTILIZATION, vol. 29, no. 7, 25 July 2011 (2011-07-25), pages 28 - 30, XP093154845
王亚平等 (WANG, YAPING ET AL.): "丁腈橡胶/聚氨酯复合材料用相容剂的合成及复合材料的性能研究 (Synthesis of Compatibilizers for NBR/PU Composites and Properties of Composites)", 橡胶工业 (CHINA RUBBER INDUSTRY), vol. 70, no. 06, 30 June 2023 (2023-06-30), ISSN: 1000-890X
王亚平等 (WANG, YAPING ET AL.): "丁腈橡胶/聚氨酯复合材料用相容剂的合成及复合材料的性能研究 (Synthesis of Compatibilizers for NBR/PU Composites and Properties of Composites)", 橡胶工业 (CHINA RUBBER INDUSTRY), vol. 70, no. 06, 30 June 2023 (2023-06-30), ISSN: 1000-890X
Attorney, Agent or Firm:
BEIJING ZHUANYING PATENT AGENCY CO., LTD. et al. (CN)
Download PDF: