Waterborne protectant for stone cultural objects

A protective agent, water-based technology, applied in paints containing biocides, antifouling/underwater coatings, coatings, etc., to achieve good antibacterial and waterproof effects

Active Publication Date: 2014-05-07
北京大禹工坊建筑科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to overcome the defects of existing cultural relics protection materials that are mainly waterproof, and provide a water-based protective agent for stone cultural relics that not only has waterproof effect but also inhibits microbial reproduction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The composition and proportion of the protective agent are as follows:

[0029] .

[0030] Preparation process: Add the ultrafine inorganic powder antibacterial agent into deionized water and disperse evenly under high-speed shear at a stirring speed of 1200 rpm, and then add the remaining components to stir and disperse evenly at 800 rpm.

[0031] Construction brushing dosage 100g / m 2 , after drying, the appearance is basically unchanged, but slightly glossy. The antimicrobial performance of the coating is tested in accordance with the "Antibacterial Coating" HG / T 3590-2007 standard. The antibacterial performance of the protective layer reaches 99.9% against Gram-negative bacteria Escherichia coli and against Gram-positive bacteria Staphylococcus aureus. The antibacterial rate reaches 98.0, and the mildew resistance level reaches 0. The waterproof performance is tested according to the JC / T902-2002 standard of "Organosilicon Waterproofing Agents for Building Surfa...

Embodiment 2

[0033] The composition and proportion of the protective agent are as follows:

[0034] .

[0035] Preparation process: Add the ultrafine inorganic powder antibacterial agent into deionized water and disperse evenly under high-speed shear at a stirring speed of 1200 rpm, and then add the remaining components to stir and disperse evenly at 800 rpm.

[0036] Construction brushing dosage 100g / m 2 , after drying, the appearance is basically unchanged, but slightly glossy. The antimicrobial performance of the coating is tested in accordance with the "Antibacterial Coating" HG / T 3590-2007 standard. The antibacterial performance of the protective layer reaches 99.9% against Gram-negative bacteria Escherichia coli and against Gram-positive bacteria Staphylococcus aureus. The antibacterial rate reaches 98.0, and the anti-mildew rating reaches level 1. The waterproof performance is tested according to the JC / T902-2002 standard of "Organosilicon Waterproofing Agents for Building Surf...

Embodiment 3

[0038] The composition and proportion of the protective agent are as follows:

[0039] .

[0040] Preparation process: Add the ultrafine inorganic powder antibacterial agent into deionized water and disperse evenly under high-speed shear at a stirring speed of 1200 rpm, and then add the remaining components to stir and disperse evenly at 800 rpm.

[0041] Construction brushing dosage 100g / m 2 , After drying, the appearance is basically unchanged, but slightly glossy. The antimicrobial performance of the coating is tested in accordance with the "Antibacterial Coating" HG / T 3590-2007 standard. The antibacterial performance of the protective layer reaches 99.0% against Gram-negative bacteria Escherichia coli and against Gram-positive bacteria Staphylococcus aureus. The antibacterial rate reaches 98.0%, and the anti-mildew grade reaches level 1. The waterproof performance is tested according to the JC / T902-2002 standard of "Organic Silicon Waterproofing Agent for Building Sur...

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Abstract

The invention belongs to the field of stone cultural object protection, and discloses a waterborne protectant for protecting and repairing stone cultural objects. The waterborne protectant comprises an organosilicone waterproof agent and water, and is characterized by further comprising a waterborne acrylic emulsion, a coalescing agent, an ultrafine inorganic powder antibacterial agent and a mildewproof agent. Under the action of permeation and adhesion of an acrylic resin material, capillary holes of rock cultural objects are filled with the ultrafine inorganic powder antibacterial agent, and when rock cultural objects reach certain strength, the capillary holes of rock cultural objects are repaired; meanwhile, copper and/or silver loaded on the ultrafine inorganic powder antibacterial agent play(s) a protection role in inhibiting the microbial breeding. The waterborne protectant has good anti-microbial, mildewproof and waterproof effects, is only 15-18% in water absorption, and resists to acid and alkali corrosion and ageing, and the artificial ageing resistance reaches more than 800 h.

Description

technical field [0001] The invention belongs to the field of protection of stone cultural relics, and in particular relates to a water-based protective agent for the protection and restoration of stone material cultural relics. Background technique [0002] Our country has a history of 5,000 years of civilization. Many ancient buildings use stone, sintered brick and wood as the main building materials, and there are many stone cultural relics. The main materials of stone cultural relics include igneous rock, sedimentary rock and metamorphic rock. [0003] The corrosion of rock cultural relics is mainly caused by environmental factors, including: surrounding medium environment (air or soil), temperature environment, humidity environment, microbial environment, atmospheric environment, light environment, etc. Cultural relics of different rock types (igneous rock, sedimentary rock and metamorphic rock) have different degrees of corrosion in the same environment. The rock qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/14C09D7/12
Inventor 肖中发杨昌鸣宋刚郝成宝
Owner 北京大禹工坊建筑科技有限公司
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