Title:
POLYLACTIC ACID-BASED POLYURETHANE-UREA WITH SUPER-STRONG TOUGHNESS, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/178915
Kind Code:
A1
Abstract:
The present invention relates to a polylactic acid-based polyurethane-urea with super-strong toughness, and a preparation method therefor. The polylactic acid-based polyurethane-urea comprises a polymerization unit of polylactic acid-diol, at least two diisocyanates, a small molecule polyol chain extender and water, wherein the diisocyanates are selected from at least two of diisocyanates of aliphatic groups, alicyclic groups or aromatic groups, which contain 4-18 carbon atoms in the molecules, and the small molecule polyol chain extender is diol and/or triol containing 2-12 carbon atoms in the molecule. The mechanical strength of a polyurethane-urea material with super-strong toughness can be regulated and controlled by means of regulating the types and ratio of reaction raw materials. The PLA-based polyurethane-urea of the present invention has the characteristics of super toughness (the elongation at break is 15%-55%, and the tensile strength at break is 80-104 MPa), low forming temperature (hot press forming can be performed at 130℃), adjustable mechanical property, good biocompatibility and degradability, and can be used in the fields of biomedical materials, etc.
Inventors:
GUO MINGYU (CN)
ZHANG HAO (CN)
ZHANG HAO (CN)
Application Number:
PCT/CN2021/079284
Publication Date:
September 01, 2022
Filing Date:
March 05, 2021
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
C08G18/66; C08G18/32; C08G18/42; C08J5/18; C08L75/06
Foreign References:
| CN110627996A | 2019-12-31 | |||
| CN101550615A | 2009-10-07 | |||
| CN1774460A | 2006-05-17 | |||
| CN108290999A | 2018-07-17 | |||
| CN109456716A | 2019-03-12 | |||
| CN105457092A | 2016-04-06 | |||
| CN107778446A | 2018-03-09 | |||
| CN105693987A | 2016-06-22 |
Other References:
LU CONGCONG: "Preparation and Properties of Conductive Hybrid Isocyanate Polyurethane Materials", MASTER THESIS, TIANJIN POLYTECHNIC UNIVERSITY, CN, no. 1, 5 January 2021 (2021-01-05), CN , XP055962424, ISSN: 1674-0246
CHEN HAILIANG, ZHANG FANG, CHEN WEI: "Application of Mixed Diisocyanate in Polyurethane Elastomer", POLYURETHANE INDUSTRY, vol. 25, no. 4, 28 August 2010 (2010-08-28), pages 32 - 35, XP055962433, ISSN: 1005-1902
ZHAO HONGXIANG, YUXIANG JIANG;TIANBAO ZHAO;MINGYAN LUO;JINGFU ZHOU;ZAIFENG LI: "Correlation Among the Structure of Hard Segment Micro-Phase,Mechanical Properties and Heat Resistance for PUU Elastomers", GAOFENZI-CAILIAO-KEXUE-YU-GONGCHENG = POLYMER MATERIALS SCIENCE AND ENGINEERING, CHENGDU KEJI DAXUE GAOFENZI YANJIUSUO, CN, vol. 33, no. 6, 25 June 2017 (2017-06-25), CN , XP055962436, ISSN: 1000-7555, DOI: 10.16865/j.cnki.1000-7555.2017.06.018
LIU LIANGBING, LIU HONG-MEI,JIA LIN-CAI: "Study on Mechanical Properties of PBA/MDI Type Polyurethane Elastomer", CHINA ADHESIVES, SHANGHAI : SHANGHAI-SHI HECHENG SHUZHI YANJIUSUO, CN, vol. 16, no. 9, 30 September 2007 (2007-09-30), CN , pages 5 - 7, XP055962440, ISSN: 1004-2849, DOI: 10.13416/j.ca.2007.09.003
XU QIANWEI, XIAO SHI-YING: "Study on the Cross-linked Polyurethane(PU) Elastomers", SHANGHAI PLASTICS, SHANGHAI SOCIETY OF PLASTICS ENGINEERING TECHNOLOGY; SHANGHAI INSTITUTE OF CHEMICAL INDUSTRY, vol. 1, no. 137, 30 March 2007 (2007-03-30), pages 14 - 17, XP055962419, ISSN: 1009-5993, DOI: 10.16777/j.cnki.issn.1009-5993.2007.01.005
CHEN HAILIANG, ZHANG FANG, CHEN WEI: "Application of Mixed Diisocyanate in Polyurethane Elastomer", POLYURETHANE INDUSTRY, vol. 25, no. 4, 28 August 2010 (2010-08-28), pages 32 - 35, XP055962433, ISSN: 1005-1902
ZHAO HONGXIANG, YUXIANG JIANG;TIANBAO ZHAO;MINGYAN LUO;JINGFU ZHOU;ZAIFENG LI: "Correlation Among the Structure of Hard Segment Micro-Phase,Mechanical Properties and Heat Resistance for PUU Elastomers", GAOFENZI-CAILIAO-KEXUE-YU-GONGCHENG = POLYMER MATERIALS SCIENCE AND ENGINEERING, CHENGDU KEJI DAXUE GAOFENZI YANJIUSUO, CN, vol. 33, no. 6, 25 June 2017 (2017-06-25), CN , XP055962436, ISSN: 1000-7555, DOI: 10.16865/j.cnki.1000-7555.2017.06.018
LIU LIANGBING, LIU HONG-MEI,JIA LIN-CAI: "Study on Mechanical Properties of PBA/MDI Type Polyurethane Elastomer", CHINA ADHESIVES, SHANGHAI : SHANGHAI-SHI HECHENG SHUZHI YANJIUSUO, CN, vol. 16, no. 9, 30 September 2007 (2007-09-30), CN , pages 5 - 7, XP055962440, ISSN: 1004-2849, DOI: 10.13416/j.ca.2007.09.003
XU QIANWEI, XIAO SHI-YING: "Study on the Cross-linked Polyurethane(PU) Elastomers", SHANGHAI PLASTICS, SHANGHAI SOCIETY OF PLASTICS ENGINEERING TECHNOLOGY; SHANGHAI INSTITUTE OF CHEMICAL INDUSTRY, vol. 1, no. 137, 30 March 2007 (2007-03-30), pages 14 - 17, XP055962419, ISSN: 1009-5993, DOI: 10.16777/j.cnki.issn.1009-5993.2007.01.005
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
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