【作者】 刘毅； 高建民； 郭洪武；

【Author】 Liu Yi,Gao Jian-Min,Guo Hong-Wu (College of Material Science and Technology,Beijing Forestry University,Beijing 100083,China)

【机构】 北京林业大学材料科学与技术学院； 北京林业大学；

【摘要】 采用覆游离漆膜的方法研究了纳米TiO₂和UV吸收剂改性水性丙烯酸清漆和聚氨酯清漆对染色单板光变色的抑制效能,利用红外光谱比较分析了不同覆膜条件下染色单板的光变色行为。结果表明:经UV改性的漆膜对染色单板光变色的抑制性最好,纳米TiO₂改性的次之,未改性漆膜效果最差。UV改性聚氨酯和丙烯酸漆膜对染色单板光变色的抑制率分别为56.37%和33.59%,纳米Ti0₂的为15.85%和17.24%。更多还原

【Abstract】 The overlying free film method was used to study the nano-TiO₂ and UV absorbing agent modified water-borne acrylic varnish and polyurethane varnish of dyed veneer photochromic suppression effectiveness,using infrared spectrum analyzed the photochromic behavior of dyed veneer under different coated condition.The results show that dyed veneer covered with UV modification film has the best restraint against photochromism,film modified by nano-TiO₂ takes second place,and unmodified film worst.Photochromic inhibitory rate of UV modified polyurethane and acrylic paint film were 56.37%and 33.59%respectively,the rate of nano-TiO₂ was 15.85%and 17.24%.更多还原