Classification of wetting agents for paint

2021-09-27   Pageview:172

Classification of wetting agents according to their properties: wetting agents are anionic and nonionic surfactants.

Anionic surfactants include alkyl1-based sulfates, sulfonates, fatty acid or fatty acid ester sulfates, carboxylic acid soaps, and lindane esters. Nonionic surfactants include polyoxyethylene alkyl phenol ethers, polyoxyethylene fatty alcohol ethers, polyoxyethylene polyoxypropylene block copolymers, etc.

The new silanol-based nonionic surfactants, also known as wetting agents, are characterized by: low molecular weight, multiple hydrophobic groups in an umbrella symmetric structure, compared with traditional active agents, paint wetting agent PE-100 supply, wetting, permeability performance is extremely excellent, high 1 efficiency, is a revolutionary new generation of surfactants. Dynamic and static surface tension is extremely low, contains double hydroxyl groups, reactive active agent, chemically inert, generally not involved in the chemical reaction of the system, good acid and alkali resistance, chemically stable. Typical models: GSK-588/582/585 series, etc.

 

 

 

 

 

 

 

 

 

 

 

 

The formula calculation taking lead naphthenate as an example:
CH,, CO0], Ph+HoPhO+ 2pfC HX COOH-
2232×205+2×18
Let the acid value of naphthenic acid=200mgK0H/g, and z is the relative molecular mass of naphthenic acid=56100/200=280.5.

According to the reaction formula, the feeding ratio can be calculated: react 223g of Huangdan with 561g of naphthenic acid (acid value=200) to produce 766g of lead naphthenate, with a metal lead content of about 27%. It is commonly used in the actual production process. Slightly excessive amounts of Huang Dan will result in higher lead content in the resulting product. If 766g of this solid lead naphthenate is diluted into montan wax msds a 10% lead naphthenate solution with metal ion content, 1302g of 200# solvent gasoline needs to be added.

In the actual production process, due to the different purity of the raw materials and the different reaction conditions, the amount of lead naphthenate produced and the amount of lead metal contained in it will change to a certain extent. The metal content of the metal soap should be measured, and then diluted with 200# solvent gasoline. Specify the concentration. Table 6-13 is the formula of drier made by melting method.
Low, the viscosity of the metal soap decreases.

The formula calculation taking lead naphthenate as an example:
CH,, CO0], Ph+HoPhO+ 2pfC HX COOH-
2232×205+2×18
Let the acid value of naphthenic acid=200mgK0H/g, and z is the relative molecular mass of naphthenic acid=56100/200=280.5.
According to the reaction formula, the feeding ratio can be calculated: react 223g of Huangdan with 561g of naphthenic acid (acid value=200) to produce 766g of lead naphthenate, with a metal lead content of about 27%. It is commonly used in the actual production process. Slightly excessive amounts of Huang Dan will result in higher lead content in the resulting product. If 766g of this solid lead naphthenate is diluted into a 10% lead naphthenate solution with metal ion content, 1302g of 200# solvent gasoline needs to be added.

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