| 摘要 |
#CMT# #/CMT# Photopolymerizing native epoxides, comprises polymerizing the native epoxides with an oxirane oxygen content of 10-13% as monomers with UV-light initiated hexafluorophosphoric- or antimony-acid to polyether at room temperature and considerably accelerating the reaction speed of the photopolymerization by addition of maleic acid at a concentration of 1-3%, where: e.g. other alpha , beta -unsaturated acids or anhydrides cause a similar elevation of the reaction speed; and a mixture of maleic acid and maleic acid anhydride are applicable for accelerating the reaction. #CMT# : #/CMT# Photopolymerizing native epoxides, comprises polymerizing the native epoxides with an oxirane oxygen content of 10-13% as monomers with UV-light initiated hexafluorophosphoric- or antimony-acid to polyether at room temperature and considerably accelerating the reaction speed of the photopolymerization by addition of maleic acid at a concentration of 1-3%, where: other alpha , beta -unsaturated acids or anhydrides cause a similar elevation of the reaction speed; a mixture of maleic acid and maleic acid anhydride are applicable for accelerating the reaction; this polymerization is achievable with natural light with a polymerization speed of 10= t p= 25'and thus produces glass fiber laminate of up to 3 mm, and also such mixtures are usable in the boat building; the adhesiveness of the films made from the photopolymerization is effectively increased by addition of maleic acid on wood, paper, cardboard or glued wood-chip surfaces; the polyether forms the films, which is resistant against solvents (acetone, alcohol, ketone, hydrocarbon and also resistant against strong alkaline solution such as concentrated potassium hydroxide and sodium hydroxide); films exhibit a hydrolysis resistance of greater than 20 and thus suitable for wafer coating for the photovoltaic elements, preferably for the surface lamination of thin film wafers on the spherical surfaces; and films are applied on polyester coat made of native epoxides and glass bodies, which are coated with this layer combination. #CMT#USE : #/CMT# The process is useful for producing glass fiber laminate (claimed). #CMT#ADVANTAGE : #/CMT# The process is carried out with high speed and without leaving aromatic auxiliary materials. The oxirane ring concentration in the molecules with approximately 13% oxirane oxygen content in the high-omega -linseed oil and/or dragonhead oil, is extremely high when compared to the other native epoxides. #CMT#EXAMPLE : #/CMT# 3 g of High-omega -linseed oil and/or dragonhead oil with an oxirane number of 10-13% and 1% photoinitiator such as triarylsulfonium hexafluorophosphate and/or -antimonate were polymerized as film with the help of a mercury lamp and/or in the natural light in a period of 10= t p= 25'. Epoxide (3 g) was reacted with maleic acid (0.05 g) and an extremely smooth flexible laminate was obtained with a mixture of maleic acid (0.05 g) and maleic acid anhydride (0.05 g). In this case, the exposure time was clearly reduced. A polymer was introduced in an aqueous potassium hydroxide and tested against 0.1 N sulfuric acid, water, n-heptane, acetone, chloroform, diethylether and glycerol triacetate, and in all solvents, the foils were insoluble. The epoxide with cocatalyst was reacted with 1% photoinitiator and poured over glass fleece and/or carbon fiber to obtain the strong laminate (3 mm) in 3 layers. |
