Phenolic resin(PF) and nano-SiO2 were used to improve the curing property and high humidity resistance of epoxy resin (EP) and methyl nadic anhydride (MNA) resistor paint, respectively. Hydrogen bonds, formed between ...Phenolic resin(PF) and nano-SiO2 were used to improve the curing property and high humidity resistance of epoxy resin (EP) and methyl nadic anhydride (MNA) resistor paint, respectively. Hydrogen bonds, formed between phenolic resin and nano-SiO2 in alcohol, made nano-SiO2 disperse easily in EP/MNA paint through phenolic resin without being treated by supersonic vibration. When the mass ratio of PF to EP in paint is 3:7, the formed composite paint film can be cured in 2 min at 170 ℃ . When the mass ratio of nano-SiO2 to PF in paint is 3:100, the property of high humidity resistance of the composite paint is the best, meeting the requirement of varying ratio of resistance less than 0.1% after experiment on high humidity resistance. SEM analysis shows the surface of the composite paint film is smooth, glassy, tight and homogeneous, without acicular air holes.展开更多
Rapid output increaseWith the importation of new productiontechnologies and the boom of large tim-ber processing,insulation refractorymaterial,composite material and foamplastics sectors in recent years,the phe-nolic ...Rapid output increaseWith the importation of new productiontechnologies and the boom of large tim-ber processing,insulation refractorymaterial,composite material and foamplastics sectors in recent years,the phe-nolic resin production in China has de-veloped rapidly.The average annualgrowth of the phenolic resin outputreached 33.7% from 2001 to 2006.Theproduction capacity of phenolic resin展开更多
基金Supported by Science and Technology Committee of Tianjin(No06YFGPGX08400)
文摘Phenolic resin(PF) and nano-SiO2 were used to improve the curing property and high humidity resistance of epoxy resin (EP) and methyl nadic anhydride (MNA) resistor paint, respectively. Hydrogen bonds, formed between phenolic resin and nano-SiO2 in alcohol, made nano-SiO2 disperse easily in EP/MNA paint through phenolic resin without being treated by supersonic vibration. When the mass ratio of PF to EP in paint is 3:7, the formed composite paint film can be cured in 2 min at 170 ℃ . When the mass ratio of nano-SiO2 to PF in paint is 3:100, the property of high humidity resistance of the composite paint is the best, meeting the requirement of varying ratio of resistance less than 0.1% after experiment on high humidity resistance. SEM analysis shows the surface of the composite paint film is smooth, glassy, tight and homogeneous, without acicular air holes.
文摘Rapid output increaseWith the importation of new productiontechnologies and the boom of large tim-ber processing,insulation refractorymaterial,composite material and foamplastics sectors in recent years,the phe-nolic resin production in China has de-veloped rapidly.The average annualgrowth of the phenolic resin outputreached 33.7% from 2001 to 2006.Theproduction capacity of phenolic resin