Research & Development

Research of Alkyd Resin Modified Polyacrylate Abrasion Resistant Coating 

  • WANG Y ,
  • BAO Y ,
  • LIU Y F ,
  • et al
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  • 1. College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China;

    2. Shangluo Vocational and Technical College,Shangluo,Shaanxi 726000,China

Online published: 2024-12-01

Abstract

Focused on the problem of poor abrasion resistant of polyacrylate leather coating,alkyd resin prepolymer was used as a functional monomer to modify polyacrylate,leveraging the rigidity and multiple binding sites of alkyd resin. The particle size,structure,Tg,and molecular weight of alkyd resin modified polyacrylate were characterized using DLS,FT-IR,DSC,and GPC,respectively. The performance of coatings with different alkyd resin dosage was tested,such as adhesion,pencil hardness,swelling rate,mechanical properties,and abrasion resistance. In addition,the wear patterns were observed by SEM and ultra depth of field microscopy. The results demonstrated successful preparation of alkyd resin modified polyacrylate latex with a particle size of approximately 106 nm,weight average molecular weight of 60 994 and numerical mean molecular weight of 12 703. Notably,when the dosage of alkyd resin was at 15%,the adhesion,pencil hardness,tensile strength,and elongation at break of alkyd resin modified polyacrylate coating was zero grade,4H,5. 58 MPa and 411. 09%,respectively, demonstrating optimal abrasion resistance,significantly superior to pure polyacrylate coatings. Overall,the alkyd resin modification transformed the linear structure into a mesh structure, thereby enhancing the abrasion resistance of the polyacrylate leather coating.

Cite this article

WANG Y , BAO Y , LIU Y F , et al . Research of Alkyd Resin Modified Polyacrylate Abrasion Resistant Coating [J]. Paint & Coatings Industry, 2024 , 54(12) : 10 -16 . DOI: 10.12020/j.issn.0253-4312.2024-150

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