CAJ | 학술논문

研究了废旧电路板热解油代替苯酚合成酚醛树脂胶粘剂,采用L9(34)正交设计安排实验,重点考察了甲醛加入量、催化剂加入量,第一阶段反应温度和第二阶段反应温度四个因素对热解油酚醛树脂粘胶剂的胶合强度影响.依据正交试验结果和兼顾粘胶剂的整体性能,当热解油的加入量为35g时,合成酚醛树脂胶粘剂最优工艺为37wt%的甲醛加人量为47g,40wt%的氢氧化钠液加人量为7.8g,第一阶段温度为60℃,第二阶段温度为90℃.制得的酚醛树脂胶固含量,粘度和pH值适中,游离甲醛含量低于0.3wt%,符合GB/T14732-2006中规定的层压材料用酚醛树脂产品的相关标准和要求,并且其胶合强度符合GB/T9846-2004中由桦木制成的Ⅰ类胶合板胶合强度指标值(≥0.8MPa).同时还对热解油和合成产物进行了高效液相色谱(HPLC),红外光谱分析(FTIR)分析,探求了反应变化的机理.由于废旧电路板热解油代替苯酚合成酚醛树脂胶粘剂降低了胶粘剂的生产成本,其所制得的胶粘剂有良好的应用前景.
연구료폐구전로판열해유대체분분합성분철수지효점제,채용L9(34)정교설계안배실험,중점고찰료갑철가입량、최화제가입량,제일계단반응온도화제이계단반응온도사개인소대열해유분철수지점효제적효합강도영향.의거정교시험결과화겸고점효제적정체성능,당열해유적가입량위35g시,합성분철수지효점제최우공예위37wt%적갑철가인량위47g,40wt%적경양화납액가인량위7.8g,제일계단온도위60℃,제이계단온도위90℃.제득적분철수지효고함량,점도화pH치괄중,유리갑철함량저우0.3wt%,부합GB/T14732-2006중규정적층압재료용분철수지산품적상관표준화요구,병차기효합강도부합GB/T9846-2004중유화목제성적Ⅰ류효합판효합강도지표치(≥0.8MPa).동시환대열해유화합성산물진행료고효액상색보(HPLC),홍외광보분석(FTIR)분석,탐구료반응변화적궤리.유우폐구전로판열해유대체분분합성분철수지효점제강저료효점제적생산성본,기소제득적효점제유량호적응용전경.
Phenol-formaldehyde resin adhesive was prepared by reaction of formaldehyde and pyrolytic oil instead of pure phenol. An orthogonal experiment was performed to investigate the impact of factors such as amount of formaldehyde, amount of catalyst and temperature of the first stage and second stage on bond strength. According to results of orthogonal test and whole performance of phenol-formaldehyde resin adhesive, a reasonable synthetic process was proposed with pyrolytic oil 35g, 37wt% formaldehyde 47g, 40wt% catalyst 7.8g, temperature of the first stage and second stage 60℃ and 90℃. Product performances meet the qualification of phenol-formaldehyde resin for the laminates in GB/T14732-2006. The products were characterized by FTIR and HPLC to study mechanism of its reaction. The synthetic adhesive has a good prospect with low cost when using pyrolytic oil instead of pure phenol.