Surface modification of extruded polystyrene based on ultraviolet⁃ozone irradiation

doi:10.19491/j.issn.1001-9278.2022.05.002

Abstract

Abstract:

The surface of extruded polystyrene insulation board （XPSF） was modified through ultraviolet?ozone （UVO） irradiation， and then its chemical structure， wettability and surface morphology were investigated using an X?ray photoelectron spectroscope， a contact angle meter， and a scanning electron microscopy. The results indicated that more oxygen?containing groups were produced on the XPSF surface with an increase in the UVO irradiation time. Especially after UVO irradiation for 15 min， the atomic ratio of O to C elements of the XPSF surface was increased from 0.04 to 0.59. The contact angle between XPSF and deionized water droplets decreased from 101.7 ° to 37.1 ° after UVO irradiation for 30 min. The XPSF surface showed an unchanged morphology after UVO exposure. The oxygen content of XPSF decreased gradually with an increase in standing time， suggesting that the oxygen?containing groups were lost from the surface of XPSF， thus recovering the hydrophobicity. After storage for 7 days， XPSF was still oxidized， resulting in a hydrophilic surface. Nevertheless， the wettability and chemical structure of XPSF was returned to its original state after storage for 14 days. However， the XPSF surface still exhibited an unchanged morphology.

Key words: extruded polystyrene, ultraviolet?ozone irradiation, surface modification, irradiation time, standing time

CLC Number:

TQ325.2

ZHAO Xinxin, JIN Xiaodong, SHI Yan, SUN Shibing, LYU Feng, TIAN Yingliang, ZHAO Zhiyong. Surface modification of extruded polystyrene based on ultraviolet⁃ozone irradiation[J]. China Plastics, 2022, 36(5): 8-13.

Figures/Tables 8

样品	C含量/%	O含量/%	O/C值
UVO0	96.41	3.59	0.04
UVO5	86.38	13.62	0.16
UVO10	73.14	26.86	0.36
UVO15	62.92	37.08	0.59
UVO20	62.25	37.75	0.61
UVO25	60.73	39.27	0.65
UVO30	60.26	39.74	0.66

Tab.1. Surface chemical structure of UVO?XPSF

Fig.1. C1s spectra of UVO?XPSF surface

Fig.2. Contact angle of UVO?XPSF surface

Fig.3. SEM images of UVO?XPSF surface

样品	0 d	3 d	7 d	10 d	14 d
UVO10	0.36	0.32	0.30	0.15	0.04
UVO20	0.61	0.48	0.36	0.21	0.07
UVO30	0.66	0.59	0.51	0.33	0.15

Tab.2. O/C value of UVO?XPSF being placed for different time

Fig.4. Surface chemical structure of UVO10 being placed for different time

Fig.5. Surface contact angle of UVO?XPSF being placed for different time

Fig.6. SEM images of UVO10 surface being placed for different time

References 20

1	CHEWM Y L. Factors affecting ceramic tile adhesion forex ternal cladding［J］. Construction and Building Mate⁃rials， 1999， 13（5）：293⁃296.
2	朱传金. 某住宅楼工程外墙外保温脱落鉴定及修缮方案［J］. 安徽建筑， 2020， 27（8）：221⁃222.
	ZHU C J. Exterior insulation shed identification and repair scheme for a residential building project［J］. Anhui Buil⁃ding， 2020， 27（8）：221⁃222.
3	乔世涛，张军伟. 冬冷夏热地区匀质改性防火保温板防脱落应用技术探析［J］. 施工技术， 2020， 49（1）：1 681⁃1 683.
	QIAO S T， ZHANG J W. Application technology of homogeneous modified fireproof insulation board in cold winter and hot summer［J］. Construction Technology， 2020， 49（1）：1 681⁃1 683.
4	许昆鹏，潘书刚. 表面改性高模高强碳纤维与环氧树脂界面相容性研究［J］. 热固性树脂， 2021， 36（2）：43⁃46.
	XU K P， PAN S G. Study on interfacial compatibility between surface modified high modulus and high strength carbon fiber and epoxy resin［J］. Thermosetting resin， 2021， 36（2）：43⁃46.
5	XU Z K， SUN X H， XIONG K Z， et al. A review of the research progress on the interface between oxide fiber and oxide ceramic matrix［J］. Ceramics International， 2021， 47（5）：1⁃13.
6	TEARE D O H， TON⁃THAT C， BRADLEY R H. Surface characterization and ageing of ultraviolet⁃ozone⁃treated polymers using atomic force microscopy and X⁃ray photoelectron spectroscopy［J］. Surface and Interface Analysis， 2001， 234（1）：84⁃89.
7	LI X， ZHU H， LIU C， et al. Synthesis， modification and application of hollow mesoporous carbon sub⁃microspheres for adsorptive desulfurization［J］. Industrial & Engineering Chemistry Research， 2018， 57（44）：15 020⁃15 030.
8	张婧. 等离子体技术在材料领域中的应用研究进展［J］. 安全、健康和环境， 2021， 21（1）：1⁃7.
	ZHANG J. Research progress in the application of plasma technology in the field of materials［J］. Safety， health and environment， 2021， 21（1）：1⁃7.
9	NAIAFI F， HADAVAND B S， POUMAMDAR A. Trimethoxysilane⁃assisted UV⁃curable urethane acrylate as clear coating： from synthesis to properties［J］. Colloid and Polymer Science， 2017， 295（9）：1 717⁃1 728.
10	董立强，张英辉，胡高全，等. 等离子体表面处理技术在橡胶粘合中的应用［J］. 轮胎工业， 2019， 39（4）：235⁃238.
	DONG L Q， ZHANG Y H， HU G Q， et al. The application of plasma surface treatment technology in rubber bon⁃ding［J］. Tire industry， 2019， 39（4）：235⁃238.
11	傅轶. 紫外线/臭氧辐照氧化高密度聚乙烯填充体系的研究［D］. 成都：四川大学， 2003.
12	KUANG P， LEE J H， KIM C H， et al. Improved surface wettability of polyurethane films by ultraviolet ozone treatment［J］. Journal of Applied Polymer Science， 2010， 118（5）：3 024⁃3 033.
13	PEYVANDI A， ABIDEEN S U， HUANG Y， et al. Surface treatment of polymer microfibrillar structures for improved surface wettability and adhesion［J］. Applied Surface Science， 2014， 289（1）：586⁃591.
14	LIU J S， HE L C， WANG L， et al. Significant enhancement of theadhesion between metal films and polymer substrates by UV⁃ozone surface modification in nanoscale［J］. CS Applied Materials & Interfaces， 2016， 8（44）：30 576⁃30 582.
15	王家序，冯伟，韩彦峰，等. 丁腈橡胶紫外线臭氧照射亲水改性及其水润滑性能研究［J］. 摩擦学学报， 2019， 39（4）：463⁃469.
	WANG J X， FENG W， HAN Y F， et al. Hydrophilic modification of nitrile rubber by ultraviolet ozone irradiation and its water lubrication performance ［J］. Journal of tribology， 2019， 39（4）：463⁃469.
16	MICHEAL M N， EL⁃ZAHER N A. Efficiency of ultravio⁃let/ozone treatments in improvement of dyeability and light fastness of wool［J］. Journal of Applied Polymer Scien⁃ce， 2003， 90（13）：3 668⁃3 675.
17	DONG Y， JANG J. The enhanced cationic dyeability of ultraviolet/ozone⁃treated meta⁃aramid fabrics［J］. Colora⁃tion Technology， 2011， 127（3）：173⁃178.
18	吕宏峰，闫卫平，刘志环，等. 紫外/臭氧法PDMS表面亲水改性机理研究［J］. 光谱学与光谱分析， 2016， 36（4）：1 033⁃1 037.
	LÜ H F， YAN W P， LIU Z H， et al. Mechanism of hydrophilic modification of PDMS surface by UV/ozone method［J］. Spectroscopy and spectral analysis， 2016， 36（4）：1 033⁃1 037.
19	STOBEL J M， STROBEL M A， LYONS C S， et al. Aging of air⁃corona⁃treated polypropylene film［J］. Journal of Adhesion Science and Technology， 1991， 5（2）：119⁃130.
20	RODRIGUEZ S V， BUJANDA A A， STEIN E B， et al. Atmospheric plasma processing of polymers in helium⁃water vapor dielectric barrier discharges［J］. Plasma process and polymers， 2011， 8（7）：631⁃639.

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