Method for modifying wet base surface of aluminum sulfate cement by using hydrophilic micromolecular epoxy composite resin

A technology of aluminum sulfate cement and composite resin, which is applied in epoxy resin coatings, coatings, anti-corrosion coatings, etc., can solve problems such as insoluble in water, achieve good thermal stability, improve coupling, and physical and mechanical properties Enhanced effect

Inactive Publication Date: 2021-10-12
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Different from the above patents, the present invention provides a method for modifying the wet base surface of aluminum sulfate cement by using hydrophilic small molecule epoxy composite resin. The present invention uses epoxy resin as raw material, but traditional epoxy resin is an oil-soluble substance , is insoluble in water, so it needs to be equipped with a large amount of organic

Method used

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  • Method for modifying wet base surface of aluminum sulfate cement by using hydrophilic micromolecular epoxy composite resin
  • Method for modifying wet base surface of aluminum sulfate cement by using hydrophilic micromolecular epoxy composite resin
  • Method for modifying wet base surface of aluminum sulfate cement by using hydrophilic micromolecular epoxy composite resin

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Example Embodiment

[0037] Example 1: Preparation of a polyether amine curing agent

[0038] Step 1: 109 parts of acrylic acid, 95 parts of 3-methyl-2-butene-1-amine and 0.6 parts of mass ratio of 1: 2 were added to the reaction kettle with a stirrer. - Composition of primary baseband. The oil bath was heated to 94 ° C, and the amide monomer was obtained by reacting 1H.

[0039] Step 2: The resulting 198-parts of the amide monomer is added to 100 parts of an alkenyl propylene alcohol, and the water bath is heated to 83 ° C. 112 partially alkenyl propylol and water were formulated into a liquid, and the composition of 2.79 parts of mass ratio of 3: 2 and an oxide di-tert-butyl group, 8 parts mass ratio of 1: 4 mercaptozene The composition and water of the acid were formulated with mercaptol, and A, B drum droplets were added to the reactor with a dropwise pump, wherein the a liquid drop was 1.5 hours, and the B liquid drop was added 2 hours. The polyamine ether solution was prepared after 2 hours afte...

Example Embodiment

[0040] Example 2

[0041] The epoxy composite monomer aqueous solution is polymerized by the following components, and the total mass of the raw material is 1000, each component comprises:

[0042] Ethylene glycol dihydrate glyceryl ether 109;

[0043] 86 copies of aminobenzoic acid;

[0044] Sodium bisulfite and sodium hydrogen sulfite in the mass ratio of 3: 1 is 3.2 parts;

[0045] The mass ratio of 3: 1 ammonium sulfate and azo diisobutyronitrile composition is 2.39 parts;

[0046] 7 parts of mercaptopropionic acid and mercaptol propylol in mass ratio of 1: 4;

[0047] 6 parts of the composition of dietholamine and triethanolamine in mass ratio of 1: 2;

[0048] 40 parts of the polyether amine curing agent;

[0049] The rest is water.

[0050] A method of modifying a hydrophilic small molecular epoxy composite resin modified sulfate salt cement wet base surface, the preparation process sequentially includes the following operation steps:

[0051] Step 1: 3.2 parts of a mass rati...

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Abstract

The invention provides a method for modifying a wet base surface of aluminum sulfate cement by using hydrophilic micromolecular epoxy composite resin, which comprises the following steps: firstly, adding an epoxy monomer, a reducing agent and water into a reaction kettle provided with a stirrer and a condensing device, stirring at the speed of 350r/min, and heating in a water bath to 60-70 DEG C; then preparing a mixed solution from an amine modified monomer and an initiator, and dropwise adding the mixed solution into the reaction kettle for 1.5-2 hours; after dropwise adding the mixed solution, carrying out constant-temperature reaction for 1-2 hours, naturally cooling to room temperature, adding a neutralizer, and discharging to obtain waterborne epoxy resin; and adding the obtained water-borne epoxy resin and a polyether amine curing agent into a reaction kettle, uniformly stirring, standing and curing for 15-20 minutes to obtain an epoxy composite monomer, supplementing water until the total mass is 1000 parts to obtain an epoxy composite monomer aqueous solution, and coating a wet base surface with the epoxy composite monomer aqueous solution to improve the acting force between the concrete and the wet base surface. The preparation process is simple, the product performance is excellent, the stability is good, and the adaptability is wide.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a method for modifying a wet base surface of aluminum sulfate cement by using a hydrophilic small molecule epoxy composite resin. Background technique [0002] Epoxy resin coatings have good mechanical properties and durability, so they occupy an important position in the coatings industry. However, traditional solvent-based epoxy coatings contain a large amount of organic solvents, which will bring harm to the ecological environment and human beings. Therefore, water-based epoxy coatings are an inevitable trend in the development of epoxy coatings. [0003] Patent CN104478342A discloses a wet base surface base treatment agent, a wet base surface base treatment agent, which is composed of A component and B component, wherein, A and B components are made of the following raw materials in weight percentage, A group Parts: emulsified asphalt 50%~80%, modified emulsion 10...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/00C09D5/08C08G59/44C08G59/14C08F226/02C08F216/14
CPCC09D163/00C09D5/00C09D5/08C08G59/44C08G59/1477C08F226/02C08F216/1416
Inventor 江波李铃李庆王淑嫱柯凯储劲松
Owner HUBEI UNIV OF TECH
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