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High-performance thermosetting epoxy asphalt binder and preparation method thereof

An epoxy asphalt and thermosetting technology, which is applied in the direction of asphalt material adhesives, adhesives, epoxy resin glue, etc., can solve the problems of easy softening and decreased adhesion

Inactive Publication Date: 2012-07-11
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its biggest disadvantage is that it is easy to become soft at high temperature and the adhesive force decreases.

Method used

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  • High-performance thermosetting epoxy asphalt binder and preparation method thereof
  • High-performance thermosetting epoxy asphalt binder and preparation method thereof
  • High-performance thermosetting epoxy asphalt binder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Take by weighing 100 parts of bisphenol A type glycidyl ether epoxy resin (E51) (provided by Wuxi Resin Factory), add respectively 20 parts of liquid carboxylated nitrile rubber (CTBN) (provided by China Petroleum Lanzhou Petrochemical Company) and 0.5 Parts of triphenylphosphine (TPP) (Suzhou Jinyuan Fine Chemical Co., Ltd.), start stirring, and gradually increase the temperature to 130 ° C, react for 2 hours and cool to room temperature, add 8 parts of allyl glycidyl ether (USA provided by Huntsman Company) to obtain a rubber-toughened modified epoxy resin (component A).

Embodiment 2

[0030] Embodiment 2: take by weighing 100 parts of bisphenol A type glycidyl ether epoxy resins (E51), add 35 parts of liquid carboxyl nitrile rubbers (CTBN) and 2 parts of triphenylphosphine (TPP) respectively, start to stir, and gradually Raise the temperature to 160°C, react for 5 hours, then cool to room temperature, and add 20 parts of allyl glycidyl ether to obtain a rubber-toughened and modified epoxy resin, which is component A of the epoxy asphalt binder.

[0031] The preparation method of component B of high-performance epoxy asphalt binder is as follows:

Embodiment 3

[0032] Example 3: Weigh 300 parts of No. 70 heavy traffic asphalt (provided by Zhonghai Asphalt (Taizhou) Co., Ltd.), 150 parts of hexadecenyl succinic anhydride (HDSA) (provided by Dixie Chemical Company of the United States), 10 parts of nonylphenol (NP) (provided by Huntsman, USA), 2 parts of sodium petroleum sulfonate (provided by Sinopec Anqing Petrochemical Plant) and 100 parts of rubber extender oil (provided by Shandong Xinli Petrochemical Co., Ltd.), heated to 130 ° C and mixed , and then transfer the mixture to a colloid mill for high-speed shear dispersion, the mixing time is 10min, and the mixture is cooled to room temperature to obtain the B component of the epoxy asphalt binder.

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Abstract

The invention discloses a high-performance thermosetting epoxy asphalt binder, comprising a part A component and a part B compound, wherein the part A component comprises 100 weight parts of epoxy resin, 20-35 weight parts of flexibilizer, 0.5-2 weight parts of promoter, and 8-20 weight parts of diluent; the part B component comprises 300-350 weight parts of asphalt, 150-160 weight parts of flexible curing agent, 10-15 weight parts of promoter, 2-5 weight parts of compatilizer, and 100 weight parts of diluent; and the ratio of the part A component to the part B component is 100:350-440. According to the invention, by using flexible long-chain fatty acid anhydride as the curing agent and carrying out solidification reaction on the curing agent with the epoxy resin, a stereo cross-linked structure is formed, and the bonding capability and water resistance of asphalt are increased; by using liquid rubber as the flexibilizer, the flexibility of the epoxy asphalt binder is raised to adapt to the flexibility of a steel plate, and by prereacting the flexibilizer with epoxy resin firstly for grafting, the compatibility between the epoxy asphalt binder and asphalt is raised. The epoxy asphalt binder is suitable for bonding and waterproofing of steel bridge floor, cement concrete bridge floor, tunnel, highway and other pavements. The invention also discloses a preparation method of the epoxy asphalt binder.

Description

technical field [0001] The invention relates to an epoxy resin adhesive, in particular to a high-performance thermosetting epoxy asphalt adhesive and a preparation method thereof. Background technique [0002] The adhesion between the pavement and the steel plate has always been a difficulty in the pavement technology of long-span orthotropic steel bridges. Ensuring a good combination between the pavement and the steel plate is the key to the synergy between the bridge deck pavement and the steel bridge deck, which directly affects the durability of the pavement. Therefore, the selection of the bonding material between the pavement and the steel bridge deck is the key to the steel bridge deck pavement technology. In order to achieve a good bond between the pavement layer and the steel plate, it is first required that the adhesive has strong bonding ability and strong deformation ability with the pavement material and anti-corrosion coating material, so as to ensure that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J163/00C09J163/02C09J113/00
Inventor 谢鸿峰王治流尹海燕程镕时
Owner NANJING UNIV
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