公路擴建拼接部位用環(huán)氧樹脂膠粘劑固化動力學研究

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關(guān)鍵詞：公路擴建工程；環(huán)氧樹脂；膠粘劑；固化動力學；黏度與流變性；表觀活化能中圖分類號： TQ433.4+37 文獻標志碼：A 文章編號：1001-5922（2025）07-0029-04

Abstract：The curing kinetics analysis of epoxy resin adhesive for the reinforcement of splicing parts of highway expansion project was studied.For the constructionof the splicing part ofthe highway expansion project，different reinforcement materials were designed.E44，E44/DDMand E44/DDS adhesive samples were prepared for the construction of the splicing part of the highway expansion project，in which E44/DDM and E44/DDS used 4，4， -diaminodiphenylmethane and 4，4， -diaminodiphenylsulfone curing agent，respectively，and E44 was used as the epoxy resin control group sample.The application of diferent adhesive materials was analyzed by curing kinetic test，viscosity and rheology test.The test results showed thatthe E44 specimen could not maintain a good heating dynamic coefficient under diferent heating rates，and the heat flux was relativelylow，so the curing effect could notbe completed quickly. While the curing performance of the two specimens after adding curing agent was stronger，among which the E44/DDS specimen could produce the highest peak temperature and maintain good apparent activation energy during the curing test，and the samplescould also maintain high viscosity and good rheological properties，and there was no large mass loss at high temperature. The epoxy resin adhesive with 4，4 -diaminodiphenyl sulfone curing agent is more suitable for the reinforcement of splicing parts of highway expansion projects.

Key words：highway expansion project；epoxy resin；adhesive；curing kinetics；viscosity and rheology；apparent activation energy

使用優(yōu)質(zhì)的加固材料可以增加連接點的穩(wěn)定性[1-]，減少接縫的開裂和移動[34]，確保道路連接處的結(jié)構(gòu)堅固[5]，提高道路的整體穩(wěn)定性[6]；還可以抵抗路面的剪切力和動態(tài)荷載。（剩余4610字）