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High-adaptability solid polycarboxylate superplasticizer and polymerization preparation method of body of high-adaptability solid polycarboxylate superplasticizer

A bulk polymerization and adaptability technology, applied in bulk polymerization preparation of highly adaptable solid polycarboxylate superplasticizer, highly adaptable solid polycarboxylate superplasticizer, concrete admixture, polycarboxylate superplasticizer In the field of preparation, it can solve problems such as no guidance plan, and achieve the effects of wide adaptability, low production cost and short production cycle.

Pending Publication Date: 2018-08-03
刘翠芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above technologies have a wide range of adaptability for how to make solid polycarboxylate superplasticizers achieve high-performance water-reducing effects, and no specific guidance is given.

Method used

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  • High-adaptability solid polycarboxylate superplasticizer and polymerization preparation method of body of high-adaptability solid polycarboxylate superplasticizer
  • High-adaptability solid polycarboxylate superplasticizer and polymerization preparation method of body of high-adaptability solid polycarboxylate superplasticizer
  • High-adaptability solid polycarboxylate superplasticizer and polymerization preparation method of body of high-adaptability solid polycarboxylate superplasticizer

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1: The highly adaptable solid polycarboxylate water reducer described in the present invention is made from the following raw materials in parts by mass: 100 parts of allyl polyethylene glycol APEG monomer with a degree of polymerization of 33 , 21.6 parts of acrylic acid, 16.5 parts of maleic anhydride, 2.5 parts of styrene, 7.5 parts of unsaturated phosphonate monomer namely vinyl phosphonate diethyl ester, 1.48 parts of initiator namely azobisisobutyronitrile, the initiator accounts for all 1% of the total mass of the monomer.

[0025]The bulk polymerization preparation method of the highly adaptable solid polycarboxylate water-reducer comprises the following process steps: 1. Allyl polyethylene glycol APEG monomer (allyl polyoxyethylene glycol APEG) with a polymerization degree of 33 is prepared according to the above-mentioned mass fractions. Put 100 parts of polyethylene glycol) into the reaction kettle, heat up to 55°C and start stirring. After the allyl ...

Embodiment 2

[0026] Example 2: The highly adaptable solid polycarboxylate water reducer described in the present invention is made from the following raw materials in parts by mass: 120 parts of allyl polyethylene glycol APEG monomer with a degree of polymerization of 33 , 21.6 parts of acrylic acid, 25.6 parts of maleic anhydride, 5.5 parts of sodium styrene sulfonate, 8.5 parts of unsaturated phosphonate monomer, namely 2-hydroxyethyl methacrylate phosphate, the initiator, namely azodiisopropyl 1.9 parts of imidazoline hydrochloride, the initiator accounts for 1.05% of the total mass of all monomers.

[0027] The bulk polymerization preparation method of the highly adaptable solid polycarboxylate water reducer comprises the following process steps: ① put 120 parts of allyl polyethylene glycol APEG monomer with a polymerization degree of 33 into the In the reaction kettle, heat up to 55°C and start stirring. After the allyl polyethylene glycol APEG monomer is fully melted, continue to put...

Embodiment 3

[0028] Example 3: The highly adaptable solid polycarboxylate water reducer of the present invention is made from the following raw materials in parts by mass: 150 parts of allyl polyethylene glycol APEG monomer with a degree of polymerization of 33 , 25.3 parts of methacrylic acid, 29.6 parts of diallyl maleate, 6.6 parts of sodium styrene sulfonate, 9.6 parts of unsaturated phosphonate monomer namely 2-hydroxyethyl methacrylate phosphate, initiator 2.3 parts, the initiator is a combination of 1.7 parts of azoisobutylcyanoformamide and 0.6 parts of azobisisopropylimidazoline hydrochloride, and the initiator accounts for 1% of the total mass of all monomers.

[0029] The bulk polymerization preparation method of the highly adaptable solid polycarboxylate water reducer comprises the following process steps: ① put 150 parts of allyl polyethylene glycol APEG monomer with a polymerization degree of 33 into the In the reaction kettle, heat up to 60°C and start stirring. After the al...

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Abstract

The invention relates to a high-adaptability solid polycarboxylate superplasticizer and a polymerization preparation method of a body of the high-adaptability solid polycarboxylate superplasticizer. The solid polycarboxylate superplasticizer is prepared from the following raw materials in parts by mass: 100 to 150 parts of allyl polyethylene glycol APEG monomers with polymerization degree being 33, 21.6 to 32.3 parts of one of acrylic acid and methacrylic acid, 16.5 to 29.6 parts of one of maleic anhydride and diallyl maleate, 2.5 to 6.6 parts of one of styrene and sodium p-styrenesulfonate, 7.5 to 9.6 parts of unsaturated phosphonate monomers, and initiator which accounts for 1 to 3 percent of total mass of all monomers. The unsaturated phosphonate monomer is 2-hydroxyethyl methacrylate phosphate and vinyl diethyl phosphonate; and the initiator is azodiisobutyronitrile and the like. The invention also provides the polymerization preparation method of the body of the solid polycarboxylate superplasticizer. The polycarboxylate superplasticizer has high-performance water reduction effect and also has wide adaptability, and the preparation process of the polycarboxylate superplasticizer is simple and green and environmentally friendly.

Description

technical field [0001] The invention relates to a concrete admixture, in particular to a solid polycarboxylate water reducer, in particular to a highly adaptable solid polycarboxylate water reducer, which belongs to the technical field of building materials. The invention also relates to a preparation method of a polycarboxylate water reducer, in particular to a bulk polymerization preparation method of a highly adaptable solid polycarboxylate water reducer. Background technique [0002] Polycarboxylate high-performance water reducer has become one of the important components of contemporary concrete and is widely used in various key projects. However, most of the mother liquors of polycarboxylate superplasticizers on the market are generally liquid products with a solid content of 40%-50%, which greatly increases the transportation cost, and also brings inconvenience to product storage, and is not suitable for dry mixing. The production of building materials such as mortar...

Claims

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Application Information

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IPC IPC(8): C08F283/06C08F220/06C08F222/06C08F212/08C08F230/02C08F212/14C04B24/26C04B24/16C04B103/30
CPCC08F283/065C04B24/165C04B24/246C04B2103/30C08F220/06
Inventor 叶子汪咏梅吴伟刘昭洋王玉乾王进春王龙飞周海成李茜茜董秀茹康静刘翠芬
Owner 刘翠芬
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