High-performance polycarboxylate water reducer and preparation method thereof

A polycarboxylic acid, high-performance technology, applied in the field of water reducing agent, can solve the problems of water reduction rate and slump to be improved, slump loss, poor corrosion resistance, etc., to improve corrosion resistance and water reduction rate. , Small slump loss, good cement adaptability

Inactive Publication Date: 2018-04-13
ZHEJIANG DADONGWU GROUP CONSTR OF THE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polycarboxylate superplasticizer is a kind of concrete superplasticizer with good application prospect and excellent comprehensive performance in the market, but its corrosion resistance is poor, and its water reducing rate and slump still need to be improved. Further meet the needs of the market
Therefore, the existing polycarboxylate water reducer has the problems of poor corrosion resistance, low water reducing rate and large slump loss.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment one. A high-performance polycarboxylate water reducer, made of the following raw materials in weight ratio,

[0039] 18-26 parts of acrylic acid, 8-14 parts of thioglycolic acid, 18-34 parts of isopentenol polyoxyethylene ether, 1-7 parts of hydrogen peroxide, 1-7 parts of vitamin C, 1-3 parts of white sugar, lauryl 0.2-0.8 parts of sodium sulfonate, 80-90 parts of solid naphthalene, 80-120 parts of concentrated sulfuric acid, 30-42 parts of formaldehyde, 30-40 parts of liquid caustic soda, 14-22 parts of polyethylene glycol monomethyl ether methacrylate , 10-20 parts of calcium lignosulfonate, 8-12 parts of ethylene oxide-propylene oxide copolymer, 1-3 parts of trehalose, 1-2 parts of silicone powder, 2.5-6.5 parts of shale ash, 1.5-3.5 parts of sodium bisulfate, 4-8 parts of polyethylene oxide, 6.5-10.5 parts of aluminum tripolyphosphate, 2-4 parts of cocoyl diethanolamine, 0.5-1.5 parts of barium dinonylnaphthalenesulfonate, hexamethylene oxide 1-3 parts...

Embodiment 2

[0066] Embodiment two. A high-performance polycarboxylate water reducer, made of the following raw materials in weight ratio,

[0067] 20-24 parts of acrylic acid, 10-12 parts of thioglycolic acid, 24-28 parts of isopentenol polyoxyethylene ether, 3-5 parts of hydrogen peroxide, 3-5 parts of vitamin C, 1.8-2.2 parts of white sugar, lauryl 0.4-0.6 parts of sodium sulfonate, 83-87 parts of solid naphthalene, 90-110 parts of concentrated sulfuric acid, 33-39 parts of formaldehyde, 33-37 parts of liquid caustic soda, 16-20 parts of polyethylene glycol monomethyl ether methacrylate , 13-17 parts of calcium lignosulfonate, 9-11 parts of ethylene oxide-propylene oxide copolymer, 1.5-2.5 parts of trehalose, 1.2-1.8 parts of silicone powder, 3.5-5.5 parts of shale ash, 2-3 parts of sodium bisulfate, 5-7 parts of polyethylene oxide, 7.5-9.5 parts of aluminum tripolyphosphate, 2.5-3.5 parts of cocoyl diethanolamine, 0.8-1.2 parts of barium dinonyl naphthalene sulfonate, urothene 1.5-2....

Embodiment 3

[0094] Embodiment three. A high-performance polycarboxylate water reducer, made of the following raw materials in weight ratio,

[0095] 22 parts of acrylic acid, 11 parts of thioglycolic acid, 26 parts of isopentenol polyoxyethylene ether, 4 parts of hydrogen peroxide, 4 parts of vitamin C, 2 parts of white sugar, 0.5 parts of sodium dodecylsulfonate, 85 parts of solid naphthalene, concentrated 100 parts of sulfuric acid, 36 parts of formaldehyde, 35 parts of liquid caustic soda, 18 parts of polyethylene glycol monomethyl ether methacrylate, 15 parts of calcium lignosulfonate, 10 parts of ethylene oxide-propylene oxide copolymer, trehalose 2 parts, 1.5 parts of silicone powder, 4.5 parts of shale ash, 2.5 parts of sodium bisulfite, 6 parts of polyethylene oxide, 8.5 parts of aluminum tripolyphosphate, 3 parts of cocoamide diethanolamine, barium dinonyl naphthalene sulfonate 1 part, 2 parts of urotropine, 1 part of additive, 45 parts of acetone, 130 parts of sodium sulfite, 2...

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PUM

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Abstract

The invention discloses a high-performance polycarboxylate water reducer and a preparation method thereof. The high-performance polycarboxylate water reducer is prepared from the following raw materials: acrylic acid, mercaptoacetic acid, isoamylene alcohol polyoxyethylene ether, hydrogen peroxide, vitamin, white sugar, sodium dodecyl sulfate, solid naphthalene, concentrated sulfuric acid, formaldehyde, caustic soda liquid, polyethylene glycol monoethylether methacrylic ester, calcium lignosulphonate, an ethylene oxide-propylene oxide copolymer, trehalose, shale ash, sodium hydrogen sulfite, polyoxyethylene, aluminum triphosphate, oleic acid diethanolamide, dinonylnaphthalene sulfonic acid, urotropin, an additive, acetone, sodium sulfite, acrylamide, an initiating agent and water. The preparation method comprises the following steps: mixing the isoamylene alcohol polyoxyethylene ether and the like; after the solid naphthalene is processed, adding a silicone powder into the processed solid naphthalene and stirring the mixture; processing the acrylamide and the like; finally, mixing products obtained in the former three steps, so as to obtain the high-performance polycarboxylate water reducer. The high-performance polycarboxylate water reducer has the advantages that the corrosion resistance and the water reducing rate can be improved, and the slump loss is smaller.

Description

technical field [0001] The invention relates to the field of water reducers, in particular to a high-performance polycarboxylate water reducer and a preparation method thereof. Background technique [0002] Polycarboxylate superplasticizer is a kind of concrete superplasticizer with good application prospect and excellent comprehensive performance in the market, but its corrosion resistance is poor, and its water reducing rate and slump still need to be improved. Further meet the needs of the market. Therefore, the existing polycarboxylate water reducer has the problems of poor corrosion resistance, low water reducing rate and large slump loss. Contents of the invention [0003] The object of the present invention is to provide a high-performance polycarboxylate water reducer and a preparation method thereof. The invention not only can improve corrosion resistance and water reducing rate, but also has the advantage of less slump loss. [0004] Technical solution of the ...

Claims

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Application Information

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IPC IPC(8): C08L51/08C08L51/00C08L5/04C08L83/04C08K3/32C08F283/06C08F220/56C08F220/06C08F289/00C04B24/18C04B24/26
CPCC08F283/065C04B24/18C04B24/2605C04B2103/302C08F283/06C08F289/00C08K2003/327C08L51/08C08L2205/02C08L2205/035C08F220/06C08F220/56C08L51/00C08L5/04C08L83/04C08K3/32
Inventor 郎剑雷金利学徐琴
Owner ZHEJIANG DADONGWU GROUP CONSTR OF THE NEW MATERIAL
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