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Aqueous anti-stone-bumping automobile prime coat material and preparation method thereof

A primer material and anti-stone-blasting technology, which can be used in coatings and other directions to solve problems such as heavy quality, environmental pollution, and complex synthetic materials.

Inactive Publication Date: 2014-04-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In a word, due to the use of organic solvents in the existing technology, it will pollute the environment during production and use, and there are problems such as high quality; even if water-based materials are used, there are disadvantages such as complex synthetic materials.

Method used

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  • Aqueous anti-stone-bumping automobile prime coat material and preparation method thereof
  • Aqueous anti-stone-bumping automobile prime coat material and preparation method thereof
  • Aqueous anti-stone-bumping automobile prime coat material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: Composition and preparation (1) of aqueous styrene-acrylic emulsion

[0035] Sodium polymethacrylate as protective glue, sodium lauryl sulfate and sodium alkylphenol ether sulfosuccinate as emulsifier, ammonium persulfate as initiator, sodium bicarbonate as pH regulator, styrene, Butyl acrylate, methyl methacrylate, butyl methacrylate, α-methacrylic acid, hydroxyethyl acrylate, vinyl tert-carbonate are used as monomers, and the rest is water to prepare water-based styrene-acrylic emulsion.

[0036] The composition of the obtained water-based styrene-acrylic emulsion by quality is: the water-based emulsion polymer accounts for 47.5% of the water-based styrene-acrylic emulsion; the emulsifier accounts for 3.6% of the water-based emulsion polymer; the initiator accounts for 1.2% of the water-based emulsion polymer; pH value adjustment The agent accounts for 0.5% of the water-emulsion polymer; the protective glue accounts for 2% of the water-emulsion polymer; ...

Embodiment 2

[0047] Embodiment 2: Composition and preparation (2) of water-based styrene-acrylic emulsion

[0048] Adopting the same composition as Example 1 to prepare water-based styrene-acrylic emulsion, the prepared water-based styrene-acrylic emulsion is composed by quality: water-based emulsion polymer accounts for 48% of water-based styrene-acrylic emulsion; emulsifier accounts for 2.9% of water-based emulsion polymer; The initiator accounts for 0.8% of the water-emulsion polymer; the pH regulator accounts for 0.7% of the water-emulsion polymer; the protective colloid accounts for 1.8% of the water-emulsion polymer; the balance is water.

[0049] The water-emulsion polymer is obtained by emulsion polymerization of seven kinds of monomers. The content of each monomer in the water-emulsion polymer is by mass: styrene accounts for 23.1%, butyl acrylate accounts for 52.3%, methyl methacrylate accounts for 4.0%, butyl methacrylate accounts for 8.30%, α-methacrylic acid Accounted for 2.8...

Embodiment 3

[0054] Embodiment 3: Composition, preparation and performance test results (1) of water-based anti-stone chip automotive primer

[0055] Fix the content of other components, adjust the content of mica, acicular wollastonite powder and water in the filler to find the best ratio of primer material.

[0056] Using the water-based styrene-acrylic emulsion prepared in Example 1, add materials such as thickener, mica, diatomaceous earth, light calcium, acicular wollastonite powder, etc., and mechanically stir for 30 minutes to obtain a uniformly mixed water-based anti-stone chip automotive primer Material. The composition of the prepared water-based anti-stone chip automotive primer material is shown in Table 1.

[0057] Table 1. adopts the same mass parts embodiment 1 water-based styrene-acrylic emulsion to make the optimum proportioning of coating

[0058]

[0059] After the preparation is completed, the paint is coated on a steel plate of a certain specification, and dried i...

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Abstract

The invention discloses an aqueous anti-stone-bumping automobile prime coat material and a preparation method thereof, and belongs to the technical field of automobile paint. The prime coat material comprises the components such as aqueous styrene-acrylic emulsion, filler, an auxiliary agent and water, wherein the aqueous styrene-acrylic emulsion consists of aqueous emulsion polymer, an emulsifying agent, an initiator, a pH value regulating agent, protective glue and water; and the aqueous emulsion polymer is obtained by performing emulsion polymerization on styrene, butyl acrylate, methyl methacrylate, butyl methacrylate, alpha-methacrylic acid, hydroxyethyl acrylate and vinyl versatate. According to the aqueous anti-stone-bumping automobile prime coat material and the preparation method thereof, the water is used as a solvent, and the emulsion polymerization method is adopted, so that the prime coat material has wide-temperature-range, high damping performance, higher tensile strength, high anti-bending rigidity and high wear resistance, and the requirements of an automobile bottom layer to the anti-stone-bumping performance can be met; no organic solvent is used in the preparation and use, so no pollution is caused to the environment, and the requirement of environmental friendliness is met.

Description

technical field [0001] The invention belongs to the technical field of automobile coatings, in particular to a water-based anti-stone chipping primer for automobiles prepared from an interpenetrating network polymer emulsion. Background technique [0002] Styrene-acrylic emulsion (styrene-acrylate interpenetrating network polymer emulsion) is obtained by emulsion copolymerization of styrene and acrylate monomers. As an important class of intermediate chemical products, styrene-acrylic emulsion is widely used in building materials, metal surface latex coatings, paper adhesives, adhesives and other fields due to its excellent performance. Due to the low cost of styrene-acrylic emulsion, its coating film has good characteristics such as water resistance, alkali resistance, weather resistance, and pollution resistance. In recent years, it has been widely used in the field of automotive coatings. [0003] CN101747829A discloses a stone chip-resistant automobile intermediate pain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D7/12C08F220/18C08F212/08C08F220/14C08F220/28C08F2/26C08F2/30
Inventor 李亚鹏陈鹏王静媛
Owner JILIN UNIV