Vacuum assists preparation of colophony perfusion colophony 3

On September 1, 2008 dispatch: Change through flowing the viscosity spy harmonious that appearance tasties to BA9912 tree G undertakes checking an analysis, obtained BA9912 resinous viscosity, temperature curve (4) seeing a picture. Viscosity of BA9912 resinous room temperature is inferior, it is 300mPa•s left and right sides about, can satisfy VARI low cost to shape craft requirement. Viscosity of BA 9912 resinous is reduced quickly as the rise of temperature, the viscosity below 50 ℃ temperature can achieve 50mpa•s the following, lowermost viscosity is controlled in 20mpa•s, it is thus clear that this colophony system can satisfy VARI to shape craft asks to matrix resinous low viscosity. According to guild of Chinese epoxy resin (Www.epoxy-e.cn) expert introduces, use BA9912 colophony and G0827 classics basketwork undertook many VARI shapes technology research, research shows BA9912 colophony technical properties is good as a result.

2, BA9912 colophony is pouring the function of makings according to the country the requirement of army mark, made BA9912 resin pouring the mechanical function of makings experiments, undertook the test of corresponding function is analysed. BA9912 colophony is pouring the main function of makings is shown 1 times like the watch. The content of the system of CYCOM823RTM epoxy resin that American Cytec company develops changes character and BA9912 colophony to be close to quite, and already won good application in aerospace domain. Because of guild of this China epoxy resin (Www.epoxy-e.cn) expert had system of these 2 colophony a few contrast are analysed. CYCOM823RTM colophony is pouring the sexual visibility of makings is expressed 1.

BA9912 resinous content changes character to basically be as follows: Wen Gu is changed in (120 ℃ / 4h) , initiative inject viscosity is 300 MPa•s about, lowermost viscosity is 20 MPa•s about, but room temperature injects, temperature of wet state job is 82 ℃ , temperature of job doing state can amount to 120 ℃ . CY-COM823RTM resinous content changes character to basically be as follows: Wen Gu is changed in (125 ℃ 1h) , initiative inject viscosity is 250mpa•s, lowermost viscosity <20mPa•s, but room temperature injects, temperature of wet state job is 90 ℃ , temperature of job doing state is 110 ℃ . After analysis of expert of guild of Chinese epoxy resin is compared, think, BA9912 resinous function and CY-COM823RTM resinous function compare close, main difference depends on drawing percentage elongation and Tg of vitrification transition temperature, CY-COM823RTM resinous percentage elongation is as high as 8.8 ％ , tg is 135 ℃ ; The percentage elongation of BA9912 is 2.79 ％ , tg is as high as 187 ℃ , hear resistance is admirable.