Organic-inorganic compound chlorinated natural rubber emulsion and preparation method thereof

A technology of chlorinated natural rubber and inorganic composites, which is applied in the direction of rubber derivative coatings, coatings, anti-corrosion coatings, etc., can solve the problems of unstable emulsion performance, low degree of emulsion polymerization reaction, difficulty in initiating emulsion polymerization reaction, etc., to achieve Good anti-corrosion performance

Active Publication Date: 2017-12-15
瑞易德新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under some conditions where ultraviolet light irradiation is not strong or there is no ultraviolet irradiation, it is difficult for these photoinitiators to initiate emulsion polymerization, or lead to a low degree of emulsion polymerization and unstable emulsion properties.

Method used

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  • Organic-inorganic compound chlorinated natural rubber emulsion and preparation method thereof
  • Organic-inorganic compound chlorinated natural rubber emulsion and preparation method thereof
  • Organic-inorganic compound chlorinated natural rubber emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of chlorinated natural rubber-montmorillonite organic-inorganic composite; mix sodium-based montmorillonite and CR5 chlorinated natural rubber uniformly, and then add to the mixture of sodium-based montmorillonite and chlorinated natural rubber Stir a small amount of water to form a paste. The weight ratio of chlorinated natural rubber, sodium-based montmorillonite and water is 1:0.16:0.83; o Squeeze 3 times under C, 25 o After C is air-dried, chlorinated natural rubber-montmorillonite organic-inorganic composite is obtained;

[0038] (2) Mix the chlorinated natural rubber-montmorillonite organic-inorganic composite obtained in step (1) with water, 26 o Stir at C to form a slurry, wherein the weight ratio of chlorinated natural rubber-montmorillonite organic-inorganic composite to water is 1:5;

[0039] (3) Mix styrene, methyl acrylate and the slurry obtained in step (2), and then mix it in 25 o Under C, stir at 500 rpm for 20 minutes to obtain an emulsion, wh...

Embodiment 2

[0044] (1) Preparation of chlorinated natural rubber-montmorillonite organic-inorganic composite; mix sodium-based montmorillonite and CR10 chlorinated natural rubber uniformly, and then add to the mixture of sodium-based montmorillonite and chlorinated natural rubber Stir a small amount of water evenly into a paste. The weight ratio of chlorinated natural rubber, sodium-based montmorillonite and water is 1:0.33:2.5; o Squeeze 6 times under C, 25 o After C is air-dried, chlorinated natural rubber-montmorillonite organic-inorganic composite is obtained;

[0045] (2) Mix the chlorinated natural rubber-montmorillonite organic-inorganic composite obtained in step (1) with water, 25 o Stir at C to form a slurry, in which the weight ratio of chlorinated natural rubber-montmorillonite organic-inorganic composite to water is 1:5.3;

[0046] (3) Mix styrene, methyl acrylate and the slurry obtained in step (2), and then mix it in 26 o Under C, stir at 600 rpm for 35 minutes to obtain an emuls...

Embodiment 3

[0051] Such as figure 2 As shown, the preparation method of the present invention is as follows:

[0052] (1) Preparation of chlorinated natural rubber-montmorillonite organic-inorganic composite; mix sodium-based montmorillonite and CR10 chlorinated natural rubber uniformly, and then add to the mixture of sodium-based montmorillonite and chlorinated natural rubber Stir a small amount of water evenly into a paste. The weight ratio of chlorinated natural rubber, sodium-based montmorillonite and water is 1:0.5:4.17; o Squeeze 9 times under C, 26 o After C is air-dried, the chlorinated natural rubber-montmorillonite layer embedded composite is obtained;

[0053] (2) Mix the chlorinated natural rubber-montmorillonite organic-inorganic composite obtained in step (1) with water, 25 o Stir at C to form a slurry, in which the weight ratio of chlorinated natural rubber-montmorillonite organic-inorganic composite to water is 1:5.5;

[0054] (3) Mix styrene, ethyl acrylate and the slurry obta...

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Abstract

The invention provides an organic-inorganic compound chlorinated natural rubber emulsion and preparation method thereof. The preparation method comprises the steps of firstly preparing a chlorinated natural rubber-sodium-base-montmorillonite organic-inorganic compound, mixing and stirring acrylate, styrene, water and the chlorinated natural rubber-sodium-base-montmorillonite organic-inorganic compound in a proper proportion, so as to obtain a stable emulsion, adding oxidation-reduction initiators, namely ammonium persulfate and sodium sulfite into the emulsion so as to initiating polymerization between acrylate on particles of the chlorinated natural rubber-sodium-base-montmorillonite organic-inorganic compound and styrene monomers, and adding a proper amount of zinc phosphate and barium sulfate, so as to obtain the organic-inorganic compound chlorinated natural rubber emulsion.

Description

Technical field: [0001] The invention provides an organic-inorganic composite chlorinated natural rubber emulsion, and at the same time provides a preparation method of the emulsion, belonging to the field of organic-inorganic composite materials. Background technique: [0002] Chlorinated natural rubber is an inert resin with regular molecular structure and relatively high chemical stability made by natural rubber through chlorination reaction. The glue made of chlorinated natural rubber can spontaneously produce cross-linking between the chlorinated natural rubber chains during conjunctivation. The film-forming material of chlorinated natural rubber has extremely low permeability to water and oxygen, and is resistant to general acids and Features such as alkali corrosion, high hardness and good flame retardancy. Chlorinated natural rubber is used in the manufacture of varnishes, anticorrosive coatings, road signs, coatings for ships, ports, and bridges. Since chlorinated natu...

Claims

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Application Information

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IPC IPC(8): C09D115/02C09D125/14C09D5/08C09D7/12C09D7/00C08F212/08C08F220/14C08F4/40
CPCC08F4/40C08F212/08C08K2003/3045C08K2003/328C08K2201/011C08L2205/04C09D5/08C09D115/02C08L25/14C08K7/00C08K3/346C08K3/32C08K3/30C08F220/14
Inventor 李文卓黄帅宇罗睿轶张昱超
Owner 瑞易德新材料股份有限公司
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