水性聚氨酯机械发泡涂层的响应面法优化制备

Translated title of the contribution: Preparation of waterborne polyurethane coating by mechanical foaming based on response surface methodology

Baobao Zhao, Xiaoming Qian, Yao Qian, Jintu Fan, Yan Feng, Yongchao Duo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

In order to prepare waterborne polyurethane coating with high water vapor transmission rate and tensile strength by mechanical foaming, the factors of coating-forming temperature, foaming agent concentration and foaming ratio in mechanical foaming were optimized by the response surface methodology. The results show that the regression of the quadratic polynomial model is significant while the lack of fit is not significant, demonstrating the good fitness of the model. The order of their effects on water vapor transmission rate is coating-forming temperature, foaming ratio and foaming agent concentration in sequence, while the order of their effects on tensile strength is foaming ratio, coating-forming temperature, and foaming agent concentration in sequence. Based on the maximum value of water vapor transmission rate and the tensile strength the optimum conditions are coating-forming temperature of 120℃, foaming agent concentration of 5.56% and foaming ratio of 319.17%. Under these conditions, the experimental yields of water vapor transmission rate is 6 088.71 g/(m2•24 h) and the tensile strength is 1.51 MPa, which are substantially consistent with the predicted values. Thus, the regression equation is valid and reliable. By taking the waterborne polyurethane coating as the foam layer of microfiber synthetic leather, the water vapor transmission rate is 2 070.24 g/(m2•24 h) and the perpendicular and lateral tensile forces of the obtained microfiber synthetic leather are 161. 50/112.38 N.

Translated title of the contributionPreparation of waterborne polyurethane coating by mechanical foaming based on response surface methodology
Original languageChinese
Pages (from-to)95-99
Number of pages5
JournalFangzhi Xuebao/Journal of Textile Research
Volume39
Issue number7
DOIs
Publication statusPublished - 15 Jul 2018

Keywords

  • Foaming coating
  • Mechanical foaming
  • Microfiber synthetic leather
  • Response surface methodology
  • Water vapor transmission rate
  • Waterborne polyurethane

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Polymers and Plastics
  • Materials Chemistry

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