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| Preparation and Properties of Low Crystallinity Cross-linked Network Waterborne Polyurethane |
| Received:June 08, 2022 |
| DOI：10.11980/j.issn.0254-508X.2022.10.018 |
| Key Words:waterborne polyurethane waterborne ink trimethylolpropane 2,2-dimethylolpropionic acid |
| Fund Project:广东省普通高校特色创新类项目（2022KTSCX190）；广东省普通高校重点科研平台项目（2022KCXT035）。 |
| Author Name | Affiliation | Postcode | | CHEN Hua* | Guangzhou Vocational and Technical University of Science and Technology, Guangzhou, Guangdong Province, 510550 | 510550 | | MA Yongsheng | Guangzhou Vocational and Technical University of Science and Technology, Guangzhou, Guangdong Province, 510550 | 510550 | | SHAO Shuai | Guangzhou Vocational and Technical University of Science and Technology, Guangzhou, Guangdong Province, 510550 | 510550 | | CUI Yingde | College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510225 | 510225 |
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| Abstract:Taking Polybutylene glycol （PTMG） as the main raw material for the preparation of linear and cross-linked network waterborne polyurethane， the effect of the dosage of 2，2-dimethylolpropionic acid （DMPA） and trimethylolpropane （TMP） on physical properties of it was discussed in this study. The results showed that as the dosage of DMPA was increased from 2% to 10%， the particles of linear network waterborne polyurethane dispersion （LWPUD） became more uniform and regular， and the particle size of cross-linked network waterborne polyurethane dispersion （CWPUD） increased as the dosage of TMP was increased from 2% to 4%. |
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