摘要
笔者将添加了不同无机改性剂的紫外光(UV)涂料(纯UV涂料、1%CaCO_3、2%CaCO_3、1%滑石粉、1%SiO_2)涂覆在木质地板基材上,经UV固化后,将同一种涂料的基材放置在不同的温度下进行实验,获得这些基材表面涂膜被破坏的时间(热降解老化寿命),并采用Arrhenius方法计算了木质地板UV固化涂膜的热降解老化寿命。计算结果表明:纯UV固化木器涂膜的热降解老化寿命最长,而经1%滑石粉改性后的UV固化木器涂膜的热降解老化寿命稍短。其次是经1%CaCO_3、2%CaCO_3改性后的UV固化木器涂膜,经1%SiO_2改性后的UV固化木器涂膜的热降解老化寿命是最短的。同时本文采用同样的方法计算了木质地板UV固化涂膜的耐液(墨水)寿命。经过对比发现,试验计算值与实验值误差均在10%以内,模型预测的有效性得到了验证。
Ultraviolet（UV）coatings with different inorganic modifiers（pure UV coating,1%CaCO_3,2% CaCO_3,1% talcum podwer and 1%SiO_2）were painted on wooden floor material,and were used for experiment at different temperatures after they were solidified. The damage times of those coatings were obtained （aging life of thermal degradation）. Arrhenius equation was used to calculate the aging life of thermal degradation of these UV curable coatings on wood floor. The calculated results showed that the aging life of thermal degradation of pure UV curable coating is the longest,and the UV curable wooden coating with1% talcum power modification had a shorter aging life of thermal degradation. Followed by these coatingsis the UV coating with 1% CaCO_3 and that with 2% CaCO_3 modification. The UV coating with 1% SiO_2 modification had the shortest aging life of thermal degradation. In the same way,the solution（ink） resistance of UV curable coatings on wood floor was calculated. The experimental data were compared,and the test calculation value and experimental value error was less than 10% which verified the validity of the model prediction.
出处
《家具》
2017年第5期12-16,共5页
Furniture
基金
大学生创业基金项目(201610298118H)
江苏省自然科学基金青年基金项目(BK20150887)
江苏省博士后科研资助(1402006A)
中国博士后基金资助(2015M570444)
关键词
UV固化
热降解老化寿命
改性涂膜
木材
UV curing
aging life of thermal degradation
modified coating
wood
作者简介
作者简介：喻欢（1996-），女，本科生，主要从事木家具漆膜失效机制及其防控技术方面的研究。E-mail：1329285627@qq．com。
通讯作者：闫小星（1981-），女，副教授，主要从事涂膜失效机理方面的研究。E-mail：yanxiaoxing@nuaa．edu．cn。
