摘要
采用直接共混或原位聚合方法制备了丙烯酸酯聚氨酯 /SiO2 纳米复合涂膜 ,并用几种检测手段对涂膜的力学性能、光学性能等进行了表征。实验表明 ,纳米SiO2 的加入能显著改善涂膜硬度、耐刮伤性、拉伸强度及耐候性等 ,而微米SiO2 或气相法SiO2 只能提高聚氨酯涂膜的耐磨性和硬度。
Acrylic PU/ nano-SiO_2 complex coating was made by the methods of direct blend and polymerization; and the mechanical and optical performance were characterized by several testing means. Experiments showed that the addition of nano_SiO 2 could evidently improve the hardness, scrub resistance, stretch intensity and weathering resistance. But micro_SiO 2 and gas phase SiO 2 could only improve the wearability and hardness of PU coatings.
出处
《中国涂料》
CAS
2002年第4期24-27,共4页
China Coatings
