Title:
MODIFIED LIGNIN REINFORCED RUBBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/244109
Kind Code:
A1
Abstract:
Disclosed are a modified lignin reinforced rubber and a preparation method therefor. The modified lignin is obtained by subjecting a compound containing a carbon-carbon double bond, a compound containing a sulfur element and a compound capable of blocking a hydroxyl group to composite modification. In the present invention, lignin is modified with the compound containing a carbon-carbon double bond, and the contained double bond and an olefin in a rubber generate a bonding effect, and the binding force between the lignin and the rubber is improved. Further, by means of modifying the lignin with the compound containing a sulfur element, the lignin contains a certain amount of the element sulfur, the acting force between the lignin and the rubber is improved, the performance of the rubber is improved, the use of a vulcanizing agent can be reduced, and the replacement amount of the lignin to carbon black is further increased. In addition, in the present invention, after being modified by the compound capable of blocking a hydroxyl group, the polarity of the lignin can be significantly reduced, such that the polarity of the lignin is closer to that of the rubber, the acting force between the rubber and the lignin is further improved, and the performance of the rubber is improved.
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Inventors:
ZHU CHENJIE (CN)
XU XINJIAN (CN)
YING HANJIE (CN)
LI MING (CN)
ZHUANG WEI (CN)
OUYANG PINGKAI (CN)
SHEN TAO (CN)
SHAN JUNQIANG (CN)
XU XINJIAN (CN)
YING HANJIE (CN)
LI MING (CN)
ZHUANG WEI (CN)
OUYANG PINGKAI (CN)
SHEN TAO (CN)
SHAN JUNQIANG (CN)
Application Number:
PCT/CN2021/082680
Publication Date:
December 09, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
UNIV NANJING TECH (CN)
International Classes:
C08H7/00; C08K3/04; C08K3/06; C08K3/22; C08K5/09; C08K5/47; C08K13/02; C08L7/00; C08L11/00; C08L23/22; C08L97/00
Foreign References:
| CN111533922A | 2020-08-14 | |||
| CN111499881A | 2020-08-07 | |||
| CN111748133A | 2020-10-09 | |||
| CN105778156A | 2016-07-20 | |||
| CN110483848A | 2019-11-22 | |||
| CN110791029A | 2020-02-14 | |||
| CN110382613A | 2019-10-25 |
Other References:
MO, XIANKE: "Reinforcing Properties of Enzymatic Hydrolysis Lignin for Acrylonitrile Butadiene Rubber", CHINA MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE & TECHNOLOGY I, no. 5, 15 May 2014 (2014-05-15), pages 1 - 102, XP055876190, ISSN: 1674-0246
ZHANG, CUIMEI: "Application of Modified Alkali Lignin in Natural Rubber", CHINA MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE & TECHNOLOGY, no. 8, 15 August 2016 (2016-08-15), pages 1 - 85, XP055876208, ISSN: 1674-0246
YIN, YUMING: "The Modification of Lignin Used Coupling Agent and Application of Lignin and Other Filler on SBR/BR Rubber", CHINA MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE & TECHNOLOGY, no. 1, 15 January 2015 (2015-01-15), pages 1 - 85, XP055876212, ISSN: 1674-0246
ZHANG, CUIMEI: "Application of Modified Alkali Lignin in Natural Rubber", CHINA MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE & TECHNOLOGY, no. 8, 15 August 2016 (2016-08-15), pages 1 - 85, XP055876208, ISSN: 1674-0246
YIN, YUMING: "The Modification of Lignin Used Coupling Agent and Application of Lignin and Other Filler on SBR/BR Rubber", CHINA MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE & TECHNOLOGY, no. 1, 15 January 2015 (2015-01-15), pages 1 - 85, XP055876212, ISSN: 1674-0246
Attorney, Agent or Firm:
JIANGSU SUNDY LAW FIRM (CN)
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