The Chinese lacquer techniques in the Three Kingdoms Period:rhinoceros skin lacquer and inlayed golden line The lacquerwares made during the Three Kingdoms Period are rarely unearthed.In 1984,60 pieces of lacquerware ...The Chinese lacquer techniques in the Three Kingdoms Period:rhinoceros skin lacquer and inlayed golden line The lacquerwares made during the Three Kingdoms Period are rarely unearthed.In 1984,60 pieces of lacquerware were unearthed in a tomb of the Three Kingdoms Period in Ma’anshan of Anhui Province.The lacquerwares which contain plates,cups,pots,spoons,展开更多
Lacquer,a natural substance obtained from the lacquer tree,is widely used as the envi ronmentally friendly paint,adhesive,forming agent,pigment and dye.As China is home to the world’s most and best lacquer trees,the ...Lacquer,a natural substance obtained from the lacquer tree,is widely used as the envi ronmentally friendly paint,adhesive,forming agent,pigment and dye.As China is home to the world’s most and best lacquer trees,the lacquer art has been developing in China uninterruptedly for over 8,000 years.Chinese lacquer art enjoyed rapid development in two periods.One is the Warring Period(770-256BC),the Qin(221-206 BC)and Han展开更多
A high-temperature coal tar （HTCT） was sequentially extracted with petroleum ether （PE）, ethyl acetate （EA）, and acetone with ultrasonic irradiation to afford extracts 1 to 3 （El to E3）, respectively, and acet...A high-temperature coal tar （HTCT） was sequentially extracted with petroleum ether （PE）, ethyl acetate （EA）, and acetone with ultrasonic irradiation to afford extracts 1 to 3 （El to E3）, respectively, and acetone residue. The gas chromatography/mass spectrometry （GC/MS） analysis of all extracts show that E1 is mainly composed of diand tricyclic arenes such as naphthalenes, phenan- threne, anthracene, etc., whereas high contents of heteroatomic compounds and four or more ring arenes were found in E2 and E3, respectively. The pyrolysis process of acetone residue was studied with a thermogravimetric （TG） analyzer equipped with Fourier transform infrared （FTIR） spectrometer. The results indicate that volatiles were mainly released at 380-560 ℃, and the maximum mass loss rate occurred at 492 ℃.展开更多
文摘The Chinese lacquer techniques in the Three Kingdoms Period:rhinoceros skin lacquer and inlayed golden line The lacquerwares made during the Three Kingdoms Period are rarely unearthed.In 1984,60 pieces of lacquerware were unearthed in a tomb of the Three Kingdoms Period in Ma’anshan of Anhui Province.The lacquerwares which contain plates,cups,pots,spoons,
文摘Lacquer,a natural substance obtained from the lacquer tree,is widely used as the envi ronmentally friendly paint,adhesive,forming agent,pigment and dye.As China is home to the world’s most and best lacquer trees,the lacquer art has been developing in China uninterruptedly for over 8,000 years.Chinese lacquer art enjoyed rapid development in two periods.One is the Warring Period(770-256BC),the Qin(221-206 BC)and Han
基金Supported by the National Natural Science Foundation of China(50921002)the Program of the Universities in Jiangsu Province for Development of High-Tech Industries(JHB05-33)
文摘A high-temperature coal tar （HTCT） was sequentially extracted with petroleum ether （PE）, ethyl acetate （EA）, and acetone with ultrasonic irradiation to afford extracts 1 to 3 （El to E3）, respectively, and acetone residue. The gas chromatography/mass spectrometry （GC/MS） analysis of all extracts show that E1 is mainly composed of diand tricyclic arenes such as naphthalenes, phenan- threne, anthracene, etc., whereas high contents of heteroatomic compounds and four or more ring arenes were found in E2 and E3, respectively. The pyrolysis process of acetone residue was studied with a thermogravimetric （TG） analyzer equipped with Fourier transform infrared （FTIR） spectrometer. The results indicate that volatiles were mainly released at 380-560 ℃, and the maximum mass loss rate occurred at 492 ℃.
