中国塑料 ›› 2020, Vol. 34 ›› Issue (4): 6-11.DOI: 10.19491/j.issn.1001-9278.2020.04.002

• 材料与性能 • 上一篇    下一篇

快速固化型环氧树脂灌浆材料的制备及性能

曾娟娟1,2, 陈海基1,2   

  1. 1.中科院广州化灌工程有限公司,广州 510650
    2.广东省化学灌浆工程技术研究开发中心,广州 510650
  • 收稿日期:2019-11-19 出版日期:2020-04-26 发布日期:2020-04-26

Preparation and Properties of Fast Curing Epoxy Resin Grouting Materials

Juanjuan ZENG1,2, Haiji CHEN1,2   

  1. 1.Guangzhou Chemical Grouting Engineering Co, Ltd, CAS, Guangzhou 510650, China
    2.Guangdong Province Chemical Grouting Engineering and Technology Research and Development Center, Guangzhou 510650, China
  • Received:2019-11-19 Online:2020-04-26 Published:2020-04-26

摘要:

利用腰果酚、多聚甲醛、二乙烯三胺曼尼西反应合成的酚醛胺与聚丙二醇二缩水甘油醚反应制备了环氧树脂固化剂,与环氧树脂E?51、F?51、稀释剂692制备了双组分环氧树脂灌浆材料。研究了固化剂的合成工艺以及环氧树脂灌浆材料的固化行为和固结体的性能。结果表明,合成固化剂的最佳投料比为n(醛)∶n(酚)∶n(胺)∶n(醚)= 1∶1.1∶1.2∶0.4,固化剂组分与环氧树脂组分的体积比为100∶(80~120)时,浆液的初始黏度为400~500 mPa·s,凝胶时间为25~45 min,固结体性能都符合JC/T 1041-2007的要求;在浆液发生凝胶前,浆液黏度先随着时间逐渐降低后快速上升,凝胶时间随着使用温度的降低逐渐增加。

关键词: 环氧树脂, 灌浆材料, 固化剂, 性能, 凝胶时间

Abstract:

Phenolic amines were synthesized through the Mannich reaction among cardanol, paraformaldehyde and diethylenetriamine and then reacted with poly(propylene glycol diglycidyl ether) to produce an epoxy resin curing agent. Furthermore, a two?component epoxy resin grouting material was prepared by the curing reaction of E?51 and F?51type epoxy resins with this curing agent in diluent 692. The synthesis process of curing agent, the curing behavior of epoxy grouting material and the properties of consolidation body were investigated extensively. The result indicated that the optimum feed ratio was achieved for the synthetic curing agent at the n(aldehyde)/n(phenol)/n(amine)/n(ether) molar ratio of 1/1.1/1.2/0.4. When the curing agent/epoxy resin volume ratio was set at 100/(80~120), the slurry exhibited an initial viscosity of 400~500 mPa·s and a gel time of 25~45 min, and the performance of the solidified body met the requirements from the standard JC/T 1041-2007. Moreover, the viscosity of the slurry decreased gradually and then increased rapidly with time before the gel happened, and the gel time increased with a decrease of service temperature.

Key words: epoxy resin, grouting material, curing agent, property, gel time

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