Preparation of Water-Resistance Plywood with UF Resin Modified by Emulsifiable Polyisocyanate
The purpose of the study was to manufacture waterresistance plywood with using UF resin modified by emulsifiable polyisocyanate. The emulsifiable polyisocyanate which contains plenty of hydrophilic segments and teminal isocyanate groups were synthesized by reaction between various kinds of polyether polyols and polymeric methane dipthenyl diisocyanate (pMDI). A type of composite adhesive was obtained from the mixture of emulsifiable polyisocyanate and urea formaldehyde resin. The process parameters, such as the molar ratio of -NCO and -OH, mass fraction of emulsifiable polyisocyanate in UF resin and accessory ingredient have a great influence on the composite adhesive. X-ray photoelectron spectroscopy (XPS) had been used to analyze the chemical structure of bonding interface. The results showed that the composite adhesive consisting of UF resin and emulsifiable polyisocyanate content of 7.5％ and kaolin content of 1.5％ was used in plywood with high physical and mechanical properties, water resistance and low formaldehyde emission.
emulsifiable polyisocyanate modified urea formaldehyde resin plywood XPS
Libin Zhu Bo Han Jiyou Gu Yanhua Zhang Haiyan Tan Ylngfeng Zuo
College of Material Science and Engineering, Northeast Forestry University,Harbin 150040, P. R. Chin College of Material Science and Engineering, Northeast Forestry University,Harbin 150040, P. R.China
国际会议
2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)
洛阳
英文
1056-1060
2010-09-04（万方平台首次上网日期，不代表论文的发表时间）