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Production method of stone protective agent

A production method and technology of protective agent, which are applied in the preparation of stone protective agent and the field of stone protective agent, can solve the problems of uneven varieties, different use costs, uneven protective effects, etc., and achieve good surface hydrophobicity and water contact. Corner raising effect

Inactive Publication Date: 2018-10-09
沈开湘
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are different types of stone protective agents on the market, the protective effect is also uneven, and the cost of use is also different.

Method used

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  • Production method of stone protective agent
  • Production method of stone protective agent
  • Production method of stone protective agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A production method of stone protective agent, comprising the following steps: in parts by weight, 10 parts of hydroxy silicone oil with a viscosity of 20 mm2 / s, 30 parts of hydroxy silicone oil with a viscosity of 65 mm2 / s, and 10 parts of dodecyl triethoxy silane , 0.3 parts of tetramethylammonium hydroxide catalyst and 48 parts of ethanol were put into the reaction kettle, heated at 80℃ for 2.5 hours, then cooled, and 1.7 parts of acetic acid were added until neutralization, to obtain an active silicon-containing hydroxyl bond The long-chain alkyl-modified polysiloxane; then take 2 parts of the long-chain alkyl-modified polysiloxane containing active silicon hydroxyl bonds, add 5 parts of hydrogen-containing silicone oil with a hydrogen content of 0.2wt%, and add 18 A mixed solvent composed of 120 parts gasoline and 72 parts ethanol, 2.8 parts of 0.5 μm nano-silica and 0.2 parts of tetrabutyl titanate catalyst are added and mixed uniformly to obtain a stone protective ...

Embodiment 2

[0033] A production method of stone protective agent, including the following steps: in parts by weight, 12.5 parts of hydroxy silicone oil with a viscosity of 25mm2 / s, 37.5 parts of hydroxy silicone oil with a viscosity of 60mm2 / s, and 15 parts of tridecafluorooctyltrimethoxysilane , 0.3 parts of tetramethyl ammonium hydroxide catalyst and 33.7 parts of ethanol were put into the reaction kettle, heated at 80℃ for 3 hours, then cooled, and 1 part of acetic acid was added until neutralization to obtain active silicon hydroxyl bond The long-chain alkyl-modified polysiloxane; then 4.5 parts of the long-chain alkyl-modified polysiloxane containing active silicon hydroxy bonds are added to 3.2 parts of hydrogen-containing silicone oil with a hydrogen content of 0.3wt% and 0.8 parts Hydrogen-containing silicone oil with a hydrogen content of 1.1wt%, adding 15 parts of 120# gasoline and 72.8 parts of ethanol mixed solvent, then adding 3.5 parts of 0.8μm nano diatomaceous earth and 0.2 ...

Embodiment 3

[0035] A production method of stone protective agent, comprising the following steps: in parts by weight, 14 parts of hydroxy silicone oil with a viscosity of 25 mm2 / s, 42 parts of hydroxy silicone oil with a viscosity of 75 mm2 / s, and 15 parts of heptafluorodecyl triethoxy Silane, 0.2 parts of potassium hydroxide catalyst, and 28.3 parts of ethanol were put into the reaction kettle, heated at 80°C for 3 hours, then cooled, and 0.5 part of acetic acid was added until it was neutralized to obtain a long chain containing active silicon hydroxyl bonds. Alkyl-modified polysiloxane; then take 6 parts of long-chain alkyl-modified polysiloxane with active silicon hydroxyl bond, add 1 part of hydrogen-containing silicone oil with hydrogen content of 0.2wt%, and 1 part of hydrogen-containing silicone oil A mixture of 0.4wt% hydrogen-containing silicone oil and 1 part hydrogen-containing silicone oil with a hydrogen content of 1.1wt%, adding 18 parts of 120# gasoline, 20 parts of ethanol ...

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Abstract

The invention discloses a production method of a stone protective agent. The method comprises the following steps that after 40 to 60 parts by weight of hydroxyl silicone oil, 5 to 20 parts by weightof long-chain alkyl trialkoxysilane, 0.1 to 0.5 part by weight of organic alkali catalyst and 10 to 50 parts by weight of solvents are uniformly mixed, heating reaction is performed for 2 to 6h underthe temperature condition of 80 to 110 DEG C; cooling is performed; 0.5 to 3 parts by weight of termination agents are added until the neutralization is reached; long chain alkyl modified polysiloxanecontaining active silicon hydroxyl bonds is prepared; then, 85 to 95 parts by weight of long chain alkyl modified polysiloxane containing active silicon hydroxyl bonds are taken; 1 to 6 parts by weight of hydrogen containing silicone oil are added; 85 to 95 parts by weight of mixed solvents are added; then, 1 to 5 parts by weight of nanometer dispersion micro powder and 0.01 to 0.5 part by weightof catalyst are added; uniform mixing is performed; the stone protective agent is obtained. The stone protective agent provided by the production method has the characteristics that the process is simple; the construction is convenient and fast; the permeability is high; the waterproof and antifouling effects are excellent, and the like.

Description

Technical field [0001] The invention belongs to the technical field of stone protection, and specifically relates to a stone protection agent. At the same time, the invention also relates to a preparation method of the stone protection agent. Background technique [0002] As one of the most commonly used building materials, stone is widely used in various constructions. However, under the action of natural factors such as sunlight, weathering and water erosion, the stone will undergo disease, decomposition and chipping, which affects the appearance of the stone, especially for The finish color of decorative stone. Especially with the development of industry, more serious acid rain has appeared in some areas of the country, which intensified the erosion of stone. For this reason, the prior art uses stone protective agent to coat the surface of the stone to limit the contact of the stone with the pollution source, so as to achieve the purpose of waterproof, oil-proof, acid and alk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/50
CPCC04B41/5035C04B2111/20C04B2111/23C04B2111/27C04B41/4966C04B41/4961C04B41/46C04B41/4539
Inventor 沈开湘
Owner 沈开湘
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