【作者】 莫引优； 陈奎； 何其飞； 符韵林；

【Author】 MO Yin-you;CHEN Kui;HE Qi-fei;FU Yun-lin;Guangxi Forestry Survey& Design Institute;College of Forestry,Guangxi University;Gaofeng Forestry Center of Guangxi;

【机构】 广西壮族自治区林业勘测设计院； 广西大学林学院； 国营广西高峰林场；

【摘要】 为了解二氧化硅（SiO₂）对涂料的影响,将粉状SiO₂加入聚氨酯涂料中,并涂饰于马尾松木材表面,以达到改良木材表面性质的目的。结果表明:利用硅烷偶联剂KH-570在甲苯溶剂中改性的SiO₂的疏水亲油性增强,其在聚氨酯涂料中的分散性优于未改性SiO₂;SiO₂在一定程度上提高了木材表面漆膜的性能,漆膜的耐冲击性、抗老化性能得到显著提高;加入改性SiO₂的聚氨酯涂料性能在耐磨性、硬度、耐冲击性、耐老化性方面优于未改性SiO₂聚氨酯涂料。通过将SiO₂增强体添加到聚氨酯涂料中,增强了涂料的性能,表明SiO₂与聚氨酯具有较好的协同作用。更多还原

【Abstract】 In order to know the effects of adding silicon dioxide to coating,silicon dioxide powder was added to the polyurethane coating and was finished on Pinus massonianawood surface.The results showed that after silicon dioxide was modified using silane coupling agent KH- 570 in toluene solvent,its lipophilicity increased,but its hydrophilicity decreased.Its dispersivity in the polyurethane coating was better than that of non- modified silicon dioxide;wood surface coating properties were improved to some extent,its impact resistance property and aging resistance were sigpificantly increased;modified silicon dioxide polyurethane coating was better than that of non- modified in abradability,impact resistance property,hardness,and aging resistance.So the properties of coating increased by using silicon dioxide as the reinforcing agent,coating as carrier,and the silicon dioxide and polyurethane coating were together actedwhen they were mixed.更多还原