Effects of Ultraviolet Irradiation and Chitosan Grafting Combined Treatment on the Surface Modification of ABS

LIU Xin, ZHAO Wenxia, LI Dongping, LIU Yun, CHEN Huaijun, LI Xinwei, HUI Kaihong, ZHAO Wei, SONG Yifan, YAN Yani, ZHU Qian

doi:10.16577/j.issn.1001-1560.2024.0111

Materials Protection >

2024 , Vol. 57 >Issue 5: 137 - 143

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0111

Effects of Ultraviolet Irradiation and Chitosan Grafting Combined Treatment on the Surface Modification of ABS

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(1. College of Chemistry and Chemical Engineering，Ningxia Normal University，Guyuan 756000，China；2. Key Laboratory of Green Catalytic Materials and Technologies，Ningxia Hui Autonomous Region，Guyuan 756000，China；3. Xi’an Aerospace City Fourth Primary School，Xi’an 710199，China)

ZHAO Wenxia (1978-)，Professor，Ph. D.，Research Focus: Surface Modification，Electroless Plating and Electroplating of Engineering Plastics，E-mail: zwxchj2006@ 163.com

Received date: 2023-08-10

Revised date: 2023-09-07

Accepted date: 2023-09-20

Online published: 2024-05-31

Supported by

National Natural Science Foundation of China ( 21561027 )；Natural Science Foundation of Ningxia ( 2023AAC03340，2023AAC03326，2022AAC03298)；Innovation and Entrepreneurship Project for Returnees of Ningxia (Ning Renshe Letter[2024] No. 4)；Science and Technology Innovation Leading Talent Project of Ningxia (KJT2016004)；Ningxia New UniversityThink Tank Project ([2018] 12)；Liupanshan Resources Engineering and Technology Research Center (HGZD22- 18，HGZD23-09)；Key Discipline of Inorganic Chemistry ([2017] 83)；Key Research Project of Ningxia Normal University (XJZDD2321)

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Abstract

Polyacrylonitrile-butadiene-styrene(ABS) is a widely used engineering plastic. In this study, the surface of the ABS substrate was modified by combining green UV irradiation surface modification technology with chitosan grafting technology. The effects of ultraviolet irradiation conditions, concentration of chitosan acetate solution, modification temperature and modification time on the ABS substrate surface morphology, roughness, hydrophilicity and chemical properties were investigated. Firstly, the ABS was irradiated at 300 W for 30 min by using 2 g/L titanium dioxide(TiO₂) as a photocatalyst, and then it was modified with a 0.75 g/L chitosan acetic acid solution at 70 ℃ for 30 min. The surface morphology change of the ABS substrate was observed using scanning electron microscopy(SEM) and atomic force microscopy(AFM), and the hydrophilicity change of the ABS substrates surface was analyzed using a surface contact angle measuring instrument and X-ray photoelectron spectroscopy(XPS). Results showed that after UV irradiation and chitosan grafting modification, the ABS substrate surface developed a small number of tiny holes, exhibited low surface roughness, and displayed a significant increase in the concentration of hydrophilic groups. Consequently, the surface hydrophilicity was significantly enhanced. Furthermore, the electroless copper plating layer appeared smooth, with a pink color and metallic luster.

Key words： ultraviolet irradiation; chitosan grafting; surface modification of ABS substrates; electroless plating

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LIU Xin, ZHAO Wenxia, LI Dongping, LIU Yun, CHEN Huaijun, LI Xinwei, HUI Kaihong, ZHAO Wei, SONG Yifan, YAN Yani, ZHU Qian . Effects of Ultraviolet Irradiation and Chitosan Grafting Combined Treatment on the Surface Modification of ABS[J]. Materials Protection, 2024 , 57(5) : 137 -143 . DOI: 10.16577/j.issn.1001-1560.2024.0111

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