Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation process of acrylic polymer emulsion with anti-flash rust function

A kind of acrylic polymer and preparation technology, applied in polyether coatings, coatings, anti-corrosion coatings, etc., can solve the problems of weakening the adhesion between polymers and substrates, failing to achieve flash rust, no flash rust, etc., and achieve good Anti-flash rust effect, avoid contact, eliminate flash rust effect

Active Publication Date: 2020-04-28
HENGSHUI XINGUANG CHEM
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In water-based industrial paints, anti-flash rust agents are usually used to eliminate the appearance of flash rust, the most commonly used NaNO 2 Anti-flash rust agents play an anti-flash rust effect by quickly adsorbing organic matter on the metal surface and blocking the ion transfer process of the battery, but this will weaken the adhesion between the polymer and the substrate
Moreover, the existing anti-flash rust agent solves the problem that the oxygen concentration battery has been formed, and the anti-flash rust is carried out by blocking the ion transfer of the battery, which cannot eliminate the early water-based flash rust problem, and there is currently no early water-based anti-flash rust agent. Research Report on Solving the Problem of Flash Rust

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation process of acrylic polymer emulsion with anti-flash rust function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A, the preparation of core layer pre-emulsion: in parts by weight, add successively 100 parts of water, 1 part of sodium dodecylbenzenesulfonate, 80 parts of styrene, 30 parts of isooctyl acrylate in the emulsion reactor I 1 part of methacrylic acid, stirred for 1h to obtain a core layer pre-emulsion;

[0029] B. Preparation of the shell layer pre-emulsion, in parts by weight, sequentially add 150 parts of water, 1.5 parts of sodium dodecylbenzenesulfonate, 120 parts of styrene, and 20 parts of methyl methacrylate to the emulsion reaction kettle II Parts, 8 parts of 2-(tert-butylamino) ethyl methacrylate, 10 parts of hydroxyethyl caprolactone acrylate, 60 parts of alkyl polyoxyethylene acrylate, 15 parts of n-butyl acrylate, isooctyl acrylate 80 parts, 15 parts of polyoxypropylene acrylate, stirred for 1.5h to obtain a shell layer pre-emulsion;

[0030] C, the preparation of initiator:

[0031] Seed initiator: 0.5 part of ammonium persulfate is dissolved in 3 parts of...

Embodiment 2

[0036] The preparation technology of the acrylic acid polymer emulsion with anti-flash rust function is characterized in that, comprises the following steps:

[0037] A, the preparation of core layer pre-emulsion: in parts by weight, add successively 150 parts of water, 4 parts of sodium dodecylbenzenesulfonate, 150 parts of styrene, 100 parts of isooctyl acrylate in the emulsion reactor I , 5 parts of methacrylic acid, stirred for 1.5h to obtain the core layer pre-emulsion;

[0038] B, the preparation of the shell pre-emulsion, in parts by weight, sequentially add 100 parts of water, 0.2 parts of sodium dodecylbenzenesulfonate, 50 parts of styrene, and 10 parts of methyl methacrylate to the emulsion reaction kettle II Parts, 2 parts of 2-(tert-butylamino) ethyl methacrylate, 3 parts of hydroxyethyl caprolactone acrylate, 30 parts of alkyl polyoxyethylene acrylate, 5 parts of n-butyl acrylate, isooctyl acrylate 30 parts, 5 parts of polyoxypropylene acrylate, stirred for 1 hou...

Embodiment 3

[0045] The preparation technology of the acrylic acid polymer emulsion with anti-flash rust function is characterized in that, comprises the following steps:

[0046] A, the preparation of core layer pre-emulsion: in parts by weight, add successively 120 parts of water, 3 parts of sodium dodecylbenzenesulfonate, 100 parts of styrene, 50 parts of isooctyl acrylate in the emulsion reactor I , 3 parts of methacrylic acid, stirred for 1.2h to obtain the core layer pre-emulsion;

[0047] B. Preparation of the shell layer pre-emulsion, in parts by weight, sequentially add 120 parts of water, 0.8 parts of sodium dodecylbenzenesulfonate, 70 parts of styrene, and 15 parts of methyl methacrylate to the emulsion reaction kettle II. Parts, 5 parts of 2-(tert-butylamino) ethyl methacrylate, 7 parts of hydroxyethyl caprolactone acrylate, 50 parts of alkyl polyoxyethylene acrylate, 10 parts of n-butyl acrylate, isooctyl acrylate 50 parts, 10 parts of polyoxypropylene acrylate, stirred for 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The preparation technology of the acrylic polymer emulsion with anti-flash rust function belongs to the technical field of acrylic polymer emulsion, comprising the following steps: A, the preparation of core layer pre-emulsion; B, the preparation of shell layer pre-emulsion; C, the preparation of initiator Preparation: seed initiator, core layer initiator, and shell layer initiator; D. Add 250-350 parts of water and 0.1-1.5 parts of sodium dodecylbenzenesulfonate to the reactor, stir and heat up to 80°C, add 5% core layer pre-emulsion, add seed initiator, react for 25 minutes; then start to add the remaining core layer pre-emulsion and core layer initiator dropwise, finish adding dropwise within 2-2.5h, keep warm for 20-40min, and then start adding dropwise Add the remaining shell pre-emulsion and shell initiator dropwise within 1-1.5h, keep warm for 2-2.5h, cool down to below 40°C, adjust the pH to 7.5-8, add defoamer and bactericide, and filter get the product. After the emulsion prepared by the invention is applied to the industrial protective primer, the early flash rust resistance, impact resistance, adhesion and salt spray resistance are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of acrylic polymer emulsion, and in particular relates to a preparation process of an acrylic polymer emulsion with anti-flash rust function. The acrylic acid polymer emulsion with anti-flash rust function prepared by the preparation process of the present invention has a two-layer structure of the core layer. After being applied to industrial protective primers, it has advantages in early anti-flash rust, impact resistance, adhesion and salt spray resistance. Great improvement, excellent performance. Background technique [0002] At present, in order to achieve the strategic goal of "green development", the state and local governments have continuously introduced various environmental protection policies to guide enterprises to reduce VOC emissions during the production process and when users use end products. Coatings with water as diluent have become an important development direction in my country's coa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/06C08F212/08C08F220/18C08F220/06C08F220/14C08F220/36C09D125/14C09D171/00C09D5/08
CPCC08F283/065C09D5/08C09D125/14C08L71/00
Inventor 焦健王志宽田海水王亚际高昊
Owner HENGSHUI XINGUANG CHEM