High polymer grouting material and preparation method thereof

A technology of grouting material and high polymer, which is applied in the field of high polymer grouting material and its preparation, which can solve the problem of compression and tensile properties of consolidated body inferior to epoxy grout, difficulty in finding active diluent, and easy foaming and other problems, to achieve the effect of suitable curing time, guaranteed operation time and high hardness

Inactive Publication Date: 2018-06-29
GUANGDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane material is the type of grouting material with the most product types, the widest application range and the largest consumption among chemical grouting materials at present. However, the current polyurethane prepolymer has a high viscosity, it is difficult to find active diluents, and it is easy to foam and solidify. The compression and tensile properties of the structure are not as good as those of epoxy grout

Method used

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  • High polymer grouting material and preparation method thereof
  • High polymer grouting material and preparation method thereof
  • High polymer grouting material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A polymer grouting material, the polymer grouting material is composed of component A and component B in a ratio of 1.8:1:

[0047] The raw materials of the component A include according to parts by weight:

[0048]

[0049] The raw material of institute component B comprises according to weight part:

[0050]

[0051] The hydroxyl value of the polyether polyol is 340-380mgKOH / g, and the molecular weight is 400-1000; the epoxy resin is a bisphenol A type epoxy resin; the isocyanate is diphenylmethane diisocyanate; the trigger The agent is azobisisobutyronitrile; the crosslinking agent is a mixture of dicumyl peroxide and polyvinylpyrrolidone, and its mass ratio is 1:2; the chain extender is ethylene glycol; the plasticizer The agent is epoxy soybean oil; the defoamer is polyether modified polydimethylsiloxane; the catalyst is bis(dimethylaminoethyl) ether, triethylenediamine and polymethylaminomethyl Phenol is compounded according to the weight ratio of 1.5:0.5:...

Embodiment 2

[0057] A polymer grouting material, the polymer grouting material is composed of component A and component B in a ratio of 1.9:1:

[0058] The raw materials of the component A include according to parts by weight:

[0059]

[0060] The raw material of institute component B comprises according to weight part:

[0061]

[0062] The polyether polyol is a combined polyether polyol, synthesized from ethylene oxide and propylene oxide, the mass ratio of the two polyether polyols is 1:1, and the hydroxyl value of the polyether polyol is 400-420mgKOH / g, molecular weight 800-1500; the epoxy resin is bisphenol A type epoxy resin and bisphenol F type epoxy resin compounded according to the mass ratio of 1:1; the isocyanate is di Phenylmethane diisocyanate, p-phenylene diisocyanate and xylylene diisocyanate are compounded according to the weight ratio of 1:0.8:1; the initiator is benzoyl peroxide and dicumyl peroxide according to the mass The ratio is 1:1; the crosslinking agent i...

Embodiment 3

[0068] A polymer grouting material, the polymer grouting material is composed of component A and component B in a ratio of 2.0:1:

[0069] The raw materials of the component A include according to parts by weight:

[0070]

[0071]

[0072] The raw material of institute component B comprises according to weight part:

[0073]

[0074] The polyether polyol is a combined polyether polyol, the hydroxyl value of the polyether polyol is 390-430mgKOH / g, and the molecular weight is 1000-1500; the epoxy resin is a bisphenol F epoxy resin; The isocyanate is compounded from diphenylmethane diisocyanate, p-phenylene diisocyanate and xylylene diisocyanate in a weight ratio of 1.5:1:1; the initiator is azobisisobutyronitrile and benzene peroxide Formyl is compounded according to the mass ratio of 1:2; the crosslinking agent is a mixture of dicumyl peroxide and polyvinylpyrrolidone, and its mass ratio is 1:2.2; the chain extender is 1,4 -Butanediol; the plasticizer is formed by c...

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Abstract

The invention relates to the technical field of grouting materials and specifically relates to a high polymer grouting material and a preparation method thereof. The high polymer grouting material isprepared from an ingredient A and an ingredient B according to a proportion of (1.8 to 2.5) to 1, wherein the ingredient A is prepared from the raw materials of polyether glycol, triethanol amine, isocyanate, epoxy resin, an initiator, a cross-linking agent and a chain extender; the ingredient B is prepared from the raw materials of a plasticizer, a defoaming agent, a catalyst and a diluent. The high polymer grouting material disclosed by the invention has the advantages of good permeability and short curing time; strength of cured condensate is high, bonding to the concrete is formthe cured condensate has concrete bonding firmness, and a cured part has good permeable resistance; furthermore, a construction technology is simple, and normal-temperature curing under the dry and moist conditions is achieved.

Description

technical field [0001] The invention relates to the technical field of grouting materials, in particular to a high polymer grouting material and a preparation method thereof. Background technique [0002] Since the 1990s, my country's expressway construction has developed rapidly. As one of the main pavement types of expressways, cement concrete occupies about 25% of the share in our country. However, due to a variety of reasons, many expressway pavements cannot adapt to the needs of vehicles soon after they are built, and various damage phenomena such as hollowing out, subsidence, arching, serious brokenness and cracks have occurred. For these common and common If the disease cannot be treated in time, it will inevitably cause the breakage of the expressway pavement and the accelerated decay of the pavement performance. [0003] Polymer grouting technology is the most important method for highway grassroots disease repair. Through grouting, it aims to restore the integrit...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L83/12C08L91/00C08G18/32C08G18/48C08G18/58C08G18/76
CPCC08G18/3206C08G18/4045C08G18/48C08G18/58C08G18/7614C08G18/7671C08L75/08C08L83/12C08L91/00C08L2201/08C08L2205/03C08K5/12
Inventor 刘方方唐联耀
Owner GUANGDONG UNIV OF SCI & TECH
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