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A kind of preparation method of water glass curing agent

A technology of curing agent and water glass, applied in the field of preparation of water glass curing agent, can solve the problems of poor durability and low strength of consolidated body

Active Publication Date: 2020-10-30
浙江盛捷包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention: Aiming at the problems of low strength and poor durability of the consolidated body after the current water glass curing agent is used, the invention provides a preparation method of the water glass curing agent

Method used

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  • A kind of preparation method of water glass curing agent

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preparation example Construction

[0027] A preparation method of water glass solidifying agent, comprises the steps:

[0028] (1) In parts by weight, take 60-65 parts of 1.2mol / L ethanol solution, 40-45 parts of toluene, 30-35 parts of vinyl benzoic acid, 28-34 parts of methacrylic acid, 22-26 parts of 1- Vinylimidazole, 18-23 parts of sodium acetate, 16-19 parts of zinc nitrate, 6-8 parts of crosslinking agent, 4-7 parts of catalyst, 3-9 parts of dispersant, 2-7 parts of initiator;

[0029] (2) First put 1.2mol / L ethanol solution, vinyl benzoic acid, 1-vinylimidazole, sodium acetate and zinc nitrate into the reactor, use nitrogen protection, preheat at 45-50°C for 30 minutes, and then Use nitrogen protection, heat up to 55-60°C, stir for 20-30min;

[0030] (3) After stirring, add toluene, methacrylic acid, cross-linking agent and catalyst, raise the temperature to 70-75°C, keep it warm for 15-20min, then add dispersant and initiator, increase the pressure to 0.3-0.6MPa, and react 8~12h;

[0031] (4) After ...

Embodiment 1

[0034] The crosslinking agent is prepared by mixing divinylbenzene and diethylenetriamine at a mass ratio of 2:1.

[0035] The catalyst is prepared by mixing platinum catalyst (Dongguan Maiteng Rubber and Plastic Material Co., Ltd.) and palladium carbon catalyst (Shaanxi Kaida Chemical Co., Ltd.) at a mass ratio of 1:2.

[0036] The choice of dispersant is HMPA.

[0037] The choice of initiator is azobisisobutyronitrile.

[0038] A preparation method of water glass solidifying agent, comprises the steps:

[0039] (1) In parts by weight, take 60 parts of 1.2mol / L ethanol solution, 40 parts of toluene, 30 parts of vinyl benzoic acid, 28 parts of methacrylic acid, 22 parts of 1-vinylimidazole, 18 parts of sodium acetate, 16 parts Parts of zinc nitrate, 6 parts of crosslinking agent, 4 parts of catalyst, 3 parts of dispersant, 2 parts of initiator;

[0040] (2) First put 1.2mol / L ethanol solution, vinyl benzoic acid, 1-vinylimidazole, sodium acetate and zinc nitrate into the re...

Embodiment 2

[0045] The crosslinking agent is prepared by mixing divinylbenzene and diethylenetriamine at a mass ratio of 2:3.

[0046] The catalyst is prepared by mixing platinum catalyst (Dongguan Maiteng Rubber and Plastic Material Co., Ltd.) and palladium carbon catalyst (Shaanxi Kaida Chemical Co., Ltd.) at a mass ratio of 1:2.

[0047] The choice of dispersant is fatty alcohol polyoxyethylene ether.

[0048] The choice of initiator is azobisisoheptanonitrile.

[0049] A preparation method of water glass solidifying agent, comprises the steps:

[0050] (1) In parts by weight, take 65 parts of 1.2mol / L ethanol solution, 45 parts of toluene, 35 parts of vinyl benzoic acid, 34 parts of methacrylic acid, 26 parts of 1-vinylimidazole, 23 parts of sodium acetate, 19 parts Parts of zinc nitrate, 8 parts of crosslinking agent, 7 parts of catalyst, 9 parts of dispersant, 7 parts of initiator;

[0051] (2) First put 1.2mol / L ethanol solution, vinyl benzoic acid, 1-vinylimidazole, sodium acet...

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Abstract

The invention relates to a sodium silicate chemical grouting material, in particular a preparation method of a sodium silicate curing agent. The preparation method comprises the following steps: providing sodium ions and zinc ions by taking sodium acetate and zinc nitrate as an ion donor; binding vinyl benzoic acid and 1-vinyl imidazole with the ions under the action of hydrogen bonds; taking theions as central receptors; then mixing the ions with methylacrylic acid; carrying out a polymerization reaction under the action of a catalyst and the like; removing the ions in a polymer by means ofan ethanol and acetic acid compound solution, wherein the central receptors are hollowed in position and are combined with zinc oxide; and during use, forming zincic acid radicals by zinc oxide and being adsorbed to the hollowed positions of the receptors, wherein hydrogen ions in the polymer replace sodium ions in sodium silicate, so that the gelation action of the sodium silicate chemical grouting material is enhanced, and meanwhile, the sodium ions are adsorbed to the hollowed positions and are combined with the zincic acid radicals, so that the sodium silicate curing rate is improved, thestrength of a solid is enhanced, the material is placed in the solid permanently to keep a solid state, and the durability is enhanced.

Description

technical field [0001] The invention relates to a water glass chemical grouting material, in particular to a preparation method of a water glass curing agent. Background technique [0002] High-rise buildings generally have to dig deep foundation pits during construction, tunnels and tunnels have to be dug during the construction of subways and highways, and deep holes have to be dug in projects such as coal mines and oil fields. Water seepage and quicksand will be encountered in the environment. Especially in rainy areas, these water seepage and quicksand not only affect the progress of the project, bring danger to the construction process, but also endanger the quality of the project after completion. Therefore, these quicksands must be reinforced with chemical grouting materials and made into curtains to stop water and seepage, so as to achieve the effect of fixing quicksands and stably reinforcing foundation pits and tunnels. [0003] Sodium silicate, commonly known as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/12C04B24/32
CPCC04B40/0042C04B24/026C04B24/00C04B24/04C04B24/128C04B22/085C04B24/121C04B22/04C04B22/02C04B24/003C04B24/129C04B24/32
Inventor 李璐徐克林凡
Owner 浙江盛捷包装科技有限公司