林产化学与工业
林產化學與工業
림산화학여공업
CHEMISTRY AND INDUSTRY OF FOREST PRODUCTS
2014年
3期
27-30
,共4页
死漆%钛化合物%研磨法%耐热性
死漆%鈦化閤物%研磨法%耐熱性
사칠%태화합물%연마법%내열성
dead lacquer%titanium compound%grinding method%thermostability
以死漆为原料,在室温无溶剂条件下与钛化合物混合后通过研磨法制备一种快干漆( QDL)。采用红外光谱、扫描电镜和热失重等表征手段对试样进行结构和性能表征,并探讨了生漆中不同成分对试样固化成膜的影响。结果表明：死漆与钛化合物混合研磨能够固化成膜的主要物质是漆酚,研磨过程中死漆油包水型乳液结构被破坏；当n(钛化合物)：n(死漆)为1：2时,研磨得到的涂膜表干和实干时间最短分别为1.5和6 h,远快于天然生漆的干燥速度；n(钛化合物)：n(死漆)为1：2、1：3、1：4研磨制得的QDL1、QDL2、QDL3都具有较高的光泽度,比天然生漆膜高出50之多。其中,快干漆QDL1的质量损失5%、10%和最大热失重温度分别为289、346和475℃,比天然生漆相应质量损失温度高,具有比自然干燥天然生漆膜更好的耐热性能。
以死漆為原料,在室溫無溶劑條件下與鈦化閤物混閤後通過研磨法製備一種快榦漆( QDL)。採用紅外光譜、掃描電鏡和熱失重等錶徵手段對試樣進行結構和性能錶徵,併探討瞭生漆中不同成分對試樣固化成膜的影響。結果錶明：死漆與鈦化閤物混閤研磨能夠固化成膜的主要物質是漆酚,研磨過程中死漆油包水型乳液結構被破壞；噹n(鈦化閤物)：n(死漆)為1：2時,研磨得到的塗膜錶榦和實榦時間最短分彆為1.5和6 h,遠快于天然生漆的榦燥速度；n(鈦化閤物)：n(死漆)為1：2、1：3、1：4研磨製得的QDL1、QDL2、QDL3都具有較高的光澤度,比天然生漆膜高齣50之多。其中,快榦漆QDL1的質量損失5%、10%和最大熱失重溫度分彆為289、346和475℃,比天然生漆相應質量損失溫度高,具有比自然榦燥天然生漆膜更好的耐熱性能。
이사칠위원료,재실온무용제조건하여태화합물혼합후통과연마법제비일충쾌간칠( QDL)。채용홍외광보、소묘전경화열실중등표정수단대시양진행결구화성능표정,병탐토료생칠중불동성분대시양고화성막적영향。결과표명：사칠여태화합물혼합연마능구고화성막적주요물질시칠분,연마과정중사칠유포수형유액결구피파배；당n(태화합물)：n(사칠)위1：2시,연마득도적도막표간화실간시간최단분별위1.5화6 h,원쾌우천연생칠적간조속도；n(태화합물)：n(사칠)위1：2、1：3、1：4연마제득적QDL1、QDL2、QDL3도구유교고적광택도,비천연생칠막고출50지다。기중,쾌간칠QDL1적질량손실5%、10%화최대열실중온도분별위289、346화475℃,비천연생칠상응질량손실온도고,구유비자연간조천연생칠막경호적내열성능。
A quick-drying lacquer ( QDL) was prepared from the dead lacquer and titanium compound grinded at ambient and solvent-free condition. The structure and properties of the products were studied by IR, SEM and TG. The influence of main specific components of raw lacquer on the curing was discussed. The results showed that urushiol was the main component for film formation in the grinding process. The water-in-oil emulsion of dead lacquer was damaged in grinding process. When the mole ratio of titanium compound to urushiol was 1:2, the drying time was shortest. The surface drying time and hard drying time of the obtained film were 1. 5 and 6 h, respectively, which were far more quickly than natural lacquer . QDL1, QDL2 and QDL3 were obtained through grinding process when the mole ratio of titanium compound to urushiol were 1:2, 1:3 and 1:4. All the obtained films had high gloss, the gloss values were 50 higher than that of natural lacquer films. The temperatures at 5 % weight loss, 10 % weight loss and maximum weight loss of QDL1 were 289, 346 and 475 ℃, respectively, which was higher than natural lacquer on counterpart time by 21, 35 and 28 ℃. This indicated that the thermostability of the QDL films was better than that of laccase-catalyzed lacquer films.
