阅读说明：本技术 一种用于海洋工程钢筋混凝土结构表面的渗透型防护剂 (Permeable protective agent for surface of ocean engineering reinforced concrete structure ) 是由 张启龙 林洲 徐强 刘振中 申乾宏 刘杰 江李贝 盛建松 于 2019-11-11 设计创作，主要内容包括：一种用于海洋工程钢筋混凝土结构表面的渗透型防护剂,它涉及防护剂领域,具体涉及一种用于海洋工程钢筋混凝土结构表面的渗透型防护剂。它是由以下重量份数的原料配置而成：硬脂酸钙、脂肪酸聚氧乙烯酯、二氧化硅、电气石纳米复合改性剂、成膜助剂、二氯乙烷、纳米二氧化硅颗粒、硅烷偶联剂、单硬脂酸甘油酯、邻苯二甲酸二丁酯、氧化微晶蜡、水。采用上述技术方案后,本发明有益效果为：它采用纳米二氧化硅颗粒进行界面改性,直接使用于新筑混凝土表面,渗透进入混凝土深层部位,并在碱性表面反应生成无机惰性疏水膜,既保留水汽外排通道,又阻隔海洋环境中腐蚀介质的侵蚀,具有快速固化、防腐效果的特点。(The utility model provides a permeable protective agent for ocean engineering reinforced concrete structure surface, it relates to the protective agent field, concretely relates to permeable protective agent for ocean engineering reinforced concrete structure surface. The composite material is prepared from the following raw materials in parts by weight: calcium stearate, polyoxyethylene fatty acid ester, silicon dioxide, a tourmaline nano composite modifier, a film forming aid, dichloroethane, nano silicon dioxide particles, a silane coupling agent, glyceryl monostearate, dibutyl phthalate, oxidized microcrystalline wax and water. After the technical scheme is adopted, the invention has the beneficial effects that: the nano silicon dioxide particles are used for interface modification, are directly used on the surface of newly-built concrete, penetrate into deep parts of the concrete, and react on an alkaline surface to generate an inorganic inert hydrophobic membrane, so that a water vapor discharge channel is reserved, the corrosion of corrosive media in the marine environment is prevented, and the nano silicon dioxide composite material has the characteristics of quick curing and corrosion prevention effects.)

1. A permeable protective agent for the surface of a reinforced concrete structure in ocean engineering is characterized by being prepared from the following raw materials in parts by weight: 20-25 parts of calcium stearate, 13-15 parts of fatty acid polyoxyethylene ester, 7-9 parts of silicon dioxide, 2-3 parts of tourmaline nano composite modifier, 3-5 parts of film-forming aid, 6-7 parts of dichloroethane, 10-15 parts of nano silicon dioxide particles, 5-7 parts of silane coupling agent, 10-12 parts of glyceryl monostearate, 3-6 parts of dibutyl phthalate, 1-3 parts of oxidized microcrystalline wax and 16-20 parts of water.

2. A permeable protective agent for the surface of a reinforced concrete structure in ocean engineering is characterized by being prepared from the following raw materials in parts by weight: 20 parts of calcium stearate, 13 parts of fatty acid polyoxyethylene ester, 7 parts of silicon dioxide, 2 parts of tourmaline nano composite modifier, 3 parts of film-forming aid, 6 parts of dichloroethane, 10 parts of nano silicon dioxide particles, 5 parts of silane coupling agent, 10 parts of glyceryl monostearate, 3 parts of dibutyl phthalate, 1 part of oxidized microcrystalline wax and 16 parts of water.

3. A permeable protective agent for the surface of a reinforced concrete structure in ocean engineering is characterized by being prepared from the following raw materials in parts by weight: 23 parts of calcium stearate, 14 parts of polyoxyethylene fatty acid ester, 8 parts of silicon dioxide, 2.5 parts of tourmaline nano composite modifier, 4 parts of film-forming aid, 6.5 parts of dichloroethane, 13 parts of nano silicon dioxide particles, 6 parts of silane coupling agent, 11 parts of glyceryl monostearate, 5 parts of dibutyl phthalate, 5 parts of oxidized microcrystalline wax and 18 parts of water.

4. A permeable protective agent for the surface of a reinforced concrete structure in ocean engineering is characterized by being prepared from the following raw materials in parts by weight: 25 parts of calcium stearate, 15 parts of polyoxyethylene fatty acid ester, 9 parts of silicon dioxide, 3 parts of tourmaline nano composite modifier, 5 parts of film-forming aid, 7 parts of dichloroethane, 15 parts of nano silicon dioxide particles, 7 parts of silane coupling agent, 12 parts of glyceryl monostearate, 6 parts of dibutyl phthalate, 3 parts of oxidized microcrystalline wax and 20 parts of water.

5. The permeable protective agent for the surface of the ocean engineering reinforced concrete structure according to claim 1, wherein: the film-forming assistant is dodecyl ester film-forming assistant.

Technical Field

The invention relates to the field of protective agents, in particular to a permeable protective agent for the surface of a reinforced concrete structure in ocean engineering.

Background

At present, the major permeable organic silicon production enterprises include dow corning company, general electric company, and Dresser Industries in the united states, the shin & yue chemical company, the Donghong organic silicon company, and the Toshiba organic silicon company in Japan, the Wacker company in Germany, Shanghai resin factory, Jilin research institute, Nanjing paint manufacturing factory, Wuhan organic silicon factory, and Chengguang chemical research institute, and so on, and the international products have excellent effects but high prices, and the domestic products have low prices but poor performances. Domestic research still mainly focuses on the analysis of the macroscopic film-forming property of the protective agent, and the research on the action mechanism of the protective agent is still not complete. Particularly, the water requirements of each stage of film forming of the permeable protective agent are obviously different, and the penetration depth and the film forming time of the protective agent on concrete are directly determined, so that the integral permeable film forming performance of the permeable protective agent is influenced. It can be said that the lack of research on related mechanisms directly results in the development lag of the penetration type protective agent products, so that the development of the novel protective agent based on the analysis of the action mechanism of the penetration type protective agent is very important to become the key for seeking technical breakthrough in the field.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a permeable protective agent for the surface of a reinforced concrete structure in ocean engineering.

A penetration type protective agent for the surface of a reinforced concrete structure in ocean engineering is prepared from the following raw materials in parts by weight: 20-25 parts of calcium stearate, 13-15 parts of fatty acid polyoxyethylene ester, 7-9 parts of silicon dioxide, 2-3 parts of tourmaline nano composite modifier, 3-5 parts of film-forming aid, 6-7 parts of dichloroethane, 10-15 parts of nano silicon dioxide particles, 5-7 parts of silane coupling agent, 10-12 parts of glyceryl monostearate, 3-6 parts of dibutyl phthalate, 1-3 parts of oxidized microcrystalline wax and 16-20 parts of water.

The film-forming assistant is dodecyl ester film-forming assistant. The dodecyl alcohol ester is a strong solvent of latex polymers and has extremely strong coalescence capability, the pH value of the latex paint can be influenced by the hydrolysis of the film-forming assistant, and the dodecyl alcohol ester is a film-forming assistant with extremely stable hydrolysis performance and hardly influenced by alkalinity in the latex paint.

The working principle of the invention is as follows: the protective agent takes chain type micromolecule silicon polymer as a main film forming substance, adopts nano silicon dioxide particles for interface modification, is directly used on the surface of newly-built concrete, permeates into deep parts of the concrete, reacts on an alkaline surface to generate an inorganic inert hydrophobic film, not only retains a water vapor discharge channel, but also blocks the corrosion of corrosive media in marine environment, and has the characteristics of rapid curing, remarkable corrosion prevention effect and the like

After the technical scheme is adopted, the invention has the beneficial effects that: the nano silicon dioxide particles are used for interface modification, are directly used on the surface of newly-built concrete, penetrate into deep parts of the concrete, and react on an alkaline surface to generate an inorganic inert hydrophobic membrane, so that a water vapor discharge channel is reserved, the corrosion of corrosive media in the marine environment is prevented, and the nano silicon dioxide composite material has the characteristics of quick curing and corrosion prevention effects.

Detailed Description