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Method of preparing organic/inorganic hybridization reactivity semi-interpenetrating network structure emulsion

An interpenetrating network, inorganic technology, applied in the field of preparation of organic/inorganic hybrid reactive semi-interpenetrating network structure emulsion, can solve the problem of coating hardness, water resistance, anti-stickiness, chemical resistance, and mutual Problems such as limited improvement in performance of through-the-network coating films

Inactive Publication Date: 2007-09-12
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned latex interpenetrating network polymer resin, its cross-linking network is only limited in the range of each latex particle, that is, in the range of tens to hundreds of nanometers. After the emulsion is formed into a film, the coating film is still thermoplastic. The improvement of the performance of the network coating film is limited, and the hardness, water resistance, anti-stickiness and chemical resistance of the coating are not ideal

Method used

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  • Method of preparing organic/inorganic hybridization reactivity semi-interpenetrating network structure emulsion
  • Method of preparing organic/inorganic hybridization reactivity semi-interpenetrating network structure emulsion
  • Method of preparing organic/inorganic hybridization reactivity semi-interpenetrating network structure emulsion

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Mix 21.6.g of methyl methacrylate, 23.4g of butyl acrylate, 1.5g of 1,6-hexanediol diacrylate, 5.0g of nano-silicon dioxide, and 1.5g of hexadecane, and stir at high speed after ultrasonic dispersion poured into 120mL water dissolved with 0.49g sodium lauryl sulfate, 1.45g polyethylene glycol octylphenyl ether and 0.15g sodium bicarbonate buffer, pre-emulsified for 15min, and then ultrasonically dispersed for 30min to obtain Predispersed nucleomonomers. In a 500mL three-necked reactor equipped with a mechanical stirrer, condenser and constant pressure funnel, add the above-mentioned pre-dispersed nuclear mixed monomer, stir at a low speed, raise the temperature to 76°C, add 0.15g of initiator ammonium persulfate to initiate the polymerization reaction, After the reaction system turned blue and the monomer reflux disappeared, the reaction was continued for 2 h to obtain emulsion polymer I.

[0058] Dissolve 5.8g of diacetone acrylamide in a mixed solution of 28.5g of me...

Embodiment 2

[0060] Mix 21.6g of methyl methacrylate, 23.4g of butyl acrylate, 1.5g of 1,6-hexanediol diacrylate, 5.0g of nano-titanium dioxide, and 1.5g of cetyl alcohol. After ultrasonic dispersion, under high-speed stirring, pour Put into 120mL water dissolved with 0.49g sodium lauryl sulfate, 1.45g polyethylene glycol octylphenyl ether and 0.15g buffer sodium bicarbonate, pre-emulsify for 15min, and then ultrasonically disperse for 30min to obtain pre-dispersed nucleomonomer. In a 500mL three-necked reactor equipped with a mechanical stirrer, a condenser and a constant pressure funnel, add the above-mentioned pre-dispersed nuclear monomer, stir at a low speed, heat up to 76°C, add 0.15g of initiator ammonium persulfate to initiate the polymerization reaction, wait The reaction system turned blue, and after the reflux of the monomer disappeared, the reaction was continued for 2 hours to obtain the emulsion polymer I.

[0061] Dissolve 6.5g of diacetone acrylamide in a mixed solution of...

Embodiment 3

[0063] Mix 21.6g of methyl methacrylate, 23.4g of butyl acrylate, 1.5g of triethylene glycol diacrylate, 5.0g of nano-silica, and 1.5g of hexadecane. After ultrasonic dispersion, under high-speed stirring, Pour into 120mL water dissolved with 0.49g sodium lauryl sulfate, 1.45g polyethylene glycol octyl phenyl ether and 0.15g buffer sodium bicarbonate, pre-emulsify for 15min, and then ultrasonically disperse for 30min to obtain pre-dispersion nucleosomes. In a 500mL three-necked reaction kettle equipped with a mechanical stirrer, a condenser and a constant pressure funnel, add the above-mentioned pre-dispersed nuclear monomer, stir at a low speed, raise the temperature to 76 ° C, add 0.15 g of initiator ammonium persulfate to initiate the polymerization reaction, wait The reaction system turned blue, and after the reflux of the monomer disappeared, the reaction was continued for 2 hours to obtain the emulsion polymer I.

[0064] Dissolve 6.2 g of acetoacetoxyethyl methacrylate...

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Abstract

The invention discloses a new method for manufacturing Interpenetrating Polymer Network of organic or inorganic reaction latex, which belongs to macromolecule manufacturing polymer synthesis. The emulsion has excellent storage stability. Its coating with a high pencil hardness, excellent scratch resistance, water-resistance, stain resistance, chemical resistance and aging resistance, can be used for wood, metal and surface decoration and construction exterior paint, The water emulsion polymer can be made through the following steps: (a) At least two unsaturated compounds, allyl monomer and inorganic nano particle are polymerized to the cross-linked structure seed emulsion. (b) The unsaturated compounds with reaction and allyl monomer are polymerized to core / shell structure emulsion on the basis of the seed emulsion. (c) In the core / shell structure emulsion, organic / inorganic hybrid with cross-linked structure semi-IPN emulsion can be got for adding cross-linker.

Description

【Technical field】: [0001] The present invention relates to a kind of preparation method of inorganic nano particle modified latex semi-interpenetrating network, more specifically, relate to a kind of reactive semi-interpenetrating network structure acrylate emulsion composition, this composition can be used for woodware, Decoration and anticorrosion of metal, stoneware, plastic, glass, leather surface, interior and exterior wall coating of buildings, fabric treatment, protection of cultural relics surface, etc., especially can be used as matrix resin for the manufacture of water-based wood coatings. 【technical background】: [0002] Traditional wood coatings are usually solvent-based. From the early phenolic paints, alkyd paints, nitro paints to the most widely used polyurethane paints, they all contain a lot of volatile organic compounds, which release a lot of harmful substances during the production and use of paints. Organic compounds (VOCs) not only poison operators and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D133/14C08F20/10C08F2/22C08F2/44
Inventor 张继德陈洪
Owner HUNAN UNIV OF TECH
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