阅读说明：本技术 一种混凝土用苔藻抑制剂 (Algae-coating inhibitor for concrete ) 是由 宋普涛 周永祥 王晶 王祖琦 冷发光 张伟 周海珠 张占辉 夏京亮 王伟 高超 于 2019-11-14 设计创作，主要内容包括：本发明提供了一种混凝土用苔藻抑制剂,由纳米二氧化钛、硅烷、异噻唑啉酮、纳米银杀菌剂、合金粉、改性纳米硅酸钠疏水材料、水性纳米无机矿物乳液(聚硅氧烷类)、水性固化剂按照一定比例组合而成制成。本发明具有杀藻效率高、杀藻作用持久的优点,可内掺或外涂于潮湿多雨地区、濒水滨海地区混凝土,能够长期、有效的抑制苔藻在混凝土结构物、构筑物表面的滋生。(The invention provides a bryophyte inhibitor for concrete, which is prepared by combining nano titanium dioxide, silane, isothiazolinone, nano silver bactericide, alloy powder, a modified nano sodium silicate hydrophobic material, aqueous nano inorganic mineral emulsion (polysiloxane) and an aqueous curing agent according to a certain proportion. The invention has the advantages of high algae killing efficiency and lasting algae killing effect, can be internally mixed with or externally coated on concrete in humid and rainy areas and coastal areas, and can effectively inhibit the breeding of algae moss on the surfaces of concrete structures and structures for a long time.)

1. The alga forcing inhibitor for concrete is characterized by being prepared from the following raw materials in percentage by mass: 0-40.00% of nano titanium dioxide, 0-11.36% of thiazolinone, 0-12.70% of nano silver bactericide, 0-68.10% of alloy powder, 0-10.00% of silane, 0-22.70% of modified nano sodium silicate hydrophobic material and 0-7.20% of water-based nano inorganic mineral emulsion.

2. The porphyra as claimed in claim 1, which is prepared from the following raw materials in percentage by mass: 31.60-40.00 percent of nano titanium dioxide, 6.30-6.70 percent of thiazolinone, 0-12.70 percent of nano silver bactericide, 31.60-40.00 percent of alloy powder, 0-5.10 percent of silane, 6.30-6.70 percent of modified nano sodium silicate hydrophobic material and 6.30-6.70 percent of water-based nano inorganic mineral emulsion.

3. The porphyra as claimed in claim 1, which is prepared from the following raw materials in percentage by mass: 31.60-33.30% of nano titanium dioxide, 5.60-6.30% of thiazolinone, 11.10-12.70% of nano silver bactericide, 31.60-33.30% of alloy powder, 5.10-5.60% of silane, 5.60-6.30% of modified nano sodium silicate hydrophobic material and 5.60-6.30% of water-based nano inorganic mineral emulsion.

4. The porphyra as claimed in claim 1, which is prepared from the following raw materials in percentage by mass: 28.41-30% of nano titanium dioxide, 10-11.36% of thiazolinone, 10-11.36% of nano silver bactericide, 28.41-30% of alloy powder, 9.09-10.00% of silane, 5-5.68% of modified nano sodium silicate hydrophobic material and 5-5.68% of aqueous nano inorganic mineral emulsion.

5. The porphyra haitanensis inhibitor for concrete according to claim 1, which is prepared from the following raw materials in percentage by mass: 28.5 percent of nano titanium dioxide, 11.00 percent of thiazolinone, 11.00 percent of nano silver bactericide, 28.50 percent of alloy powder, 9.80 percent of silane, 5.60 percent of modified nano sodium silicate hydrophobic material and 5.60 percent of aqueous nano inorganic mineral emulsion.

6. The porphyra as defined in any one of claims 1 to 5, wherein the nano titanium dioxide crystal form is anatase type, and the particle size is less than 20 nm; the mass percent of the thiazolinone CMI/MI is more than or equal to 3.0.

7. The alga depressor for concrete as claimed in claim 6, wherein the nano-silver bactericide is didodecyl dimethyl- γ -bis nano-silver bactericide.

8. The porphyra as defined in claim 7, wherein the alloy powder contact angle is greater than 130 °.

9. The alga inhibiting agent for concrete use according to claim 8, wherein said silane is tridecafluorooctyltriethoxysilane.

10. The alga sedge inhibitor for concrete according to claim 9, wherein the static water contact angle of the modified nano sodium silicate hydrophobic material is more than 152 °; the water-based nano inorganic mineral emulsion is nano silica sol modified polysiloxane microemulsion.

Technical Field

The invention belongs to the technical field of chemical building materials, and particularly relates to a chemical inhibitor capable of effectively inhibiting growth of algae moss on the surfaces of concrete structures and structures for a long time.

Background

The bryophyte is a generic name of green algae such as spirogyra, dictyococcus, bixin and Zhangban algae, blue algae such as microcystis and glomus algae and moss. The appearance of the parasitic body is influenced and the visual aesthetic feeling of the parasitic body is damaged, a sticky and slippery layer formed by sticky and slippery substances secreted by the seaweed fundamentally can reduce the friction coefficient of the surface of the parasitic body and increase the trip risk of pedestrians, various rotten products after death and rotting can also harm the surrounding water body and the atmospheric environment, meanwhile, the seaweed root part is decomposed to generate carbonic acid, humic acid and various organic acids to reduce the pH value of the surface layer of the parasitic body, and the durability of concrete is harmed.

The prevention and treatment measures for the bryophyte are more at home and abroad, most of the prevention and treatment measures aim at the bryophyte and the like in water such as duckweed and the like, the prevention and treatment measures for the bryophyte related to pavement concrete are fresh, the existing bryophyte prevention and treatment effect is not good, and the bryophyte on the surface of the concrete is not well controlled.

In order to solve the concrete durability problem caused by the moss algae parasitism, solve the pedestrian travel safety problem caused by the reduction of the surface friction coefficient of the concrete due to the moss algae parasitism and the pollution problem of the atmospheric environment and the water environment caused by the moss algae parasitism, fundamentally eliminate the moss algae condition on the surface of the concrete, and systematically develop the moss algae parasitism resisting technical research on the surface of the concrete.

Disclosure of Invention

The invention aims to solve the technical problems and provides a moss algae inhibitor which has high algae killing efficiency and long-lasting algae killing effect, can be internally or externally doped into concrete in humid and rainy areas and coastal areas, and can effectively inhibit the growth of moss algae on the surfaces of concrete structures and structures for a long time.

The technical scheme adopted by the invention is as follows:

a bryophyte inhibitor for concrete is prepared from the following raw materials in percentage by mass: 0-40.00% of nano titanium dioxide, 0-11.36% of thiazolinone, 0-12.70% of nano silver bactericide, 0-68.10% of alloy powder, 0-10.00% of silane, 0-22.70% of modified nano sodium silicate hydrophobic material and 0-7.20% of water-based nano inorganic mineral emulsion.

Preferably, the material is prepared from the following raw materials in percentage by mass: 31.60-40.00 percent of nano titanium dioxide, 6.30-6.70 percent of thiazolinone, 0-12.70 percent of nano silver bactericide, 31.60-40.00 percent of alloy powder, 0-5.10 percent of silane, 6.30-6.70 percent of modified nano sodium silicate hydrophobic material and 6.30-6.70 percent of water-based nano inorganic mineral emulsion.

Preferably, the material is prepared from the following raw materials in percentage by mass: 31.60-33.30% of nano titanium dioxide, 5.60-6.30% of thiazolinone, 11.10-12.70% of nano silver bactericide, 31.60-33.30% of alloy powder, 5.10-5.60% of silane, 5.60-6.30% of modified nano sodium silicate hydrophobic material and 5.60-6.30% of water-based nano inorganic mineral emulsion.

Preferably, the material is prepared from the following raw materials in percentage by mass: 28.41-30% of nano titanium dioxide, 10-11.36% of thiazolinone, 10-11.36% of nano silver bactericide, 28.41-30% of alloy powder, 9.09-10.00% of silane, 5-5.68% of modified nano sodium silicate hydrophobic material and 5-5.68% of aqueous nano inorganic mineral emulsion.

Preferably, the material is prepared from the following raw materials in percentage by mass: 28.5 percent of nano titanium dioxide, 11.00 percent of benzisothiazolinone, 11.00 percent of nano silver bactericide, 28.50 percent of alloy powder, 9.80 percent of silane, 5.60 percent of modified nano sodium silicate hydrophobic material and 5.60 percent of aqueous nano inorganic mineral emulsion.

Preferably, the crystal form of the nano titanium dioxide is anatase, and the particle size is less than 20 nm; the mass percent of the thiazolinone CMI/MI is more than or equal to 3.0.

Preferably, the nano-silver bactericide is didodecyl dimethyl-gamma-double nano-silver bactericide.

Preferably, the contact angle of the alloy powder is larger than 130 degrees.

Preferably, the silane is tridecafluorooctyltriethoxysilane.

Preferably, the static water contact angle of the modified nano sodium silicate hydrophobic material is more than 152 degrees; the water-based nano inorganic mineral emulsion is nano silica sol modified polysiloxane microemulsion.

Compared with the prior art, the invention has the following beneficial effects:

1. the crystal form of the nano titanium dioxide is anatase, and negative oxygen ions can be continuously generated under the conditions of illumination and water existence, so that the crystal form has a continuous destructive effect on the cell wall of the alga Porphyra; the nano-silver bactericide has the advantages of little influence of pH change on the sterilization effect, obvious algae killing effect, lasting effect, environmental protection and no pollution; the thiazolinone has good slime removing capacity and good algae killing effect, and can kill algae mosses and simultaneously strip pollutants such as silt adhered to the surface of concrete in an endangered muddy water area; the alloy powder is an inorganic hydrophobic material, the hydrophobic effect is durable, and the hydrophobic effect is not attenuated under the long-term soaking effect in water; the silane is tetraalkoxysilane, has a certain hydrophobic effect and can promote the adhesion of other components and concrete; the modified nano sodium silicate hydrophobic material has a static water contact angle of more than 152 degrees, has good hydrophobicity and thermal stability, can ensure the super-hydrophobic effect of the concrete surface in a high-temperature and high-humidity environment, and cuts off the water environment required by the growth of algae moss; the water-based nano inorganic mineral emulsion is a nano silica sol modified polysiloxane microemulsion, the contact angle of the water-based nano inorganic mineral emulsion can reach more than 150 degrees, the water-based nano inorganic mineral emulsion has good super-hydrophobic effect and self-cleaning effect, and the adhesion of moss, dust, silt and the like on the surface of concrete can be reduced.

2. The algae-laden restraining agent has the advantages of high algae-killing efficiency and lasting algae-killing effect, can be internally mixed with or externally coated on concrete in humid and rainy areas and coastal areas, and can effectively restrain the growth of algae-laden on the surfaces of concrete structures and structures for a long time.

Drawings

FIGS. 1 and 2 are graphs showing the change of growth of Porphyra tenera on the surface of the concrete test block after applying the Porphyra tenera inhibitor.

Detailed Description

The technical solution of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. Other embodiments, which can be derived by one of ordinary skill in the art from the embodiments of the present invention without creative efforts, are within the protection scope of the present invention.