纳米Al2O3包覆空心玻璃微珠改性聚氨酯复合涂层的制备及其性能
Preparation of Nano Al2O3 Coated Hollow Glass Microspheres Modified Polyurethane Composite Coating and Its Performance
摘 要
采用杂化改性的方法将纳米Al2O3包覆到空心玻璃微珠(HGM)表面,制备了具有核-壳结构的的复合粉体,采用物理共混-喷涂工艺制备了包覆改性、硅烷改性和未改性的HGM聚氨酯基复合涂层,并研究了不同方法改性后的HGM及含量对复合涂层疏水性和拉伸性能的影响。结果表明:经表面改性后,HGM团聚现象减轻,其与基体间的界面结合力提高;包覆改性明显提高了HGM的表面粗糙度,水接触角由60.37°增大到118.35°;随填料含量的增加,复合涂层的水接触角逐渐增大,抗拉强度先增大后减小;当包覆改性的HGM含量为10%时,相较于未改性的HGM,复合涂层的水接触角由74.5°提高到90.3°,抗拉强度由2.07 MPa增加到2.5 MPa。
核-壳结构
界面性能
疏水性
抗拉强度
coating modification
core-shell structure
interface performance
hydrophobicity
tensile strength
Abstract
Nano-Al2O3 was coated on the surface of hollow glass microspheres (HGM) by hybrid modification method, and composite powder with core-shell structure was prepared. Coating modified, silane modified and unmodified HGM polyurethane-based composite coatings were prepared by physical blending-spraying process. The effects of HGM modified by different methods and its content on the hydrophobicity and tensile properties of the composite coating were studied. The results showed that the agglomeration phenomenon of HGM after surface modification was alleviated. The interfacial adhesion with the substrate were improved. The coating modification significantly improved the surface roughness of HGM, the water contact angle increased from 60.37° to 118.35°. With the increase of filler content, the water contact angle of the composite coating increased, the tensile strength firstly increased and then decreased. When the coating modified HGM content was 10%, compared with the unmodified HGM, the water contact angle of composite coating increased from 74.5° to 90.3°, and the tensile strength increased from 2.07 MPa to 2.5 MPa.
中图分类号 TQ630.7 DOI 10.11973/fsyfh-202303011
所属栏目 试验研究
基金项目 第三批智汇郑州·1125聚才计划-创新紧缺人才(郑政[2018]-45号-15)
收稿日期 2022/10/21
修改稿日期
网络出版日期
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引用该论文: ZHANG Ruizhu,ZHANG Zhifang,BAO Zhongbao. Preparation of Nano Al2O3 Coated Hollow Glass Microspheres Modified Polyurethane Composite Coating and Its Performance[J]. Corrosion & Protection, 2023, 44(3): 73
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【2】SONG L,ZONG L S,WANG J Y,et al. Preparation and performance of HGM/PPENK-based high temperature-resistant thermal insulating coatings[J]. Chinese Journal of Polymer Science,2021,39(6):770-778.
【3】韩煦,王雷磊,王磊,等. α-Fe2O3改性空心玻璃微球/ZnIn2S4复合催化剂的制备及增强型光催化性能[J]. 硅酸盐学报,2020,48(7):1097-1106.
【4】BAI C Y,SHAO J H,LI X Y,et al. Fabrication and properties of slag-based geopolymer syntactic foams containing hollow glass microspheres[J]. Materials Letters,2022,308:131158.
【5】KANGO S,KALIA S,CELLI A,et al. Surface modification of inorganic nanoparticles for development of organic-inorganic nanocomposites-a review[J]. Progress in Polymer Science,2013,38(8):1232-1261.
【6】IMRAN M,RAHAMAN A,PAL S. Effect of low concentration hollow glass microspheres on mechanical and thermomechanical properties of epoxy composites[J]. Polymer Composites,2019,40(9):3493-3499.
【7】LIU Y,ZHAO Z B,SHAO Y W,et al. Preparation of a superhydrophobic coating based on polysiloxane modified SiO2 and study on its anti-icing performance[J]. Surface and Coatings Technology,2022,437:128359.
【8】SAM E K,SAM D K,LV X M,et al. Recent development in the fabrication of self-healing superhydrophobic surfaces[J]. Chemical Engineering Journal,2019,373:531-546.
【9】YU F Y,GAO J,LIU C P,et al. Preparation and UV aging of nano-SiO2/fluorinated polyacrylate polyurethane hydrophobic composite coating[J]. Progress in Organic Coatings,2020,141:105556.
【10】董雨菲,马建中,刘超,等. SiO2的功能化改性及其与聚合物基体的界面研究进展[J]. 材料导报,2019,33(11):1910-1918.
【11】蓝敏杰,文庆珍,潘越,等. 含氟树脂接枝玻璃微珠(HGB)的制备与表征[J]. 表面技术,2021,50(6):193-198,205.
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【19】汪波,黄赤,黄志雄,等. 不同偶联剂对空心玻璃微球/酚醛复合泡沫塑料界面性能的影响[J]. 材料研究学报,2016,30(3):209-219.
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【21】LI R,FAN G S,WANG P,et al. Effects of silane coupling agent modifications of hollow glass microspheres on syntactic foams with epoxy matrix[J]. Polymers and Polymer Composites,2021,29(9_suppl):S1191-S1203.
【22】秦凤鸣,李香玉,王锦艳,等. 有机硅改性聚氨酯/纳米SiO2复合超疏水涂层的制备[J]. 高分子学报,2021,52(9):1165-1173.
【23】CAI Q,HUANG J M,WENG R,et al. Preparation and surface properties of silicon-containing waterborne polyurethane functionalized with fluorine-containing acrylate and micro-nano silica[J]. Journal of Wuhan University of Technology-Mater. Sci. Ed., 2018,33(1):233-241.
【24】ALBOZAHID M,NAJI H Z,ALOBAD Z K,et al. Enhanced mechanical,crystallisation and thermal properties of graphene flake-filled polyurethane nanocomposites:the impact of thermal treatment on the resulting microphase-separated structure[J]. Journal of Polymer Research,2021,28(8):302.
【25】CHENG B X,GAO W C,REN X M,et al. A review of microphase separation of polyurethane:characterization and applications[J]. Polymer Testing,2022,107:107489.
【26】郭豪,贾非,陈琰霏,等. 应变速率对硬质聚氨酯准静态拉伸行为的影响[J]. 材料导报,2022,36(5):216-219.
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