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Low-release non-sensitization odorless acrylic emulsion, interior wall coating and preparation method of low-release non-sensitization odorless acrylic emulsion

A technology of odor-cleaning acrylic and interior wall coatings, applied in the field of latex paint, can solve the problems of high allergens and high VOC content, and achieve the effect of low VOC content and low odor

Pending Publication Date: 2022-05-27
广东嘉宝莉科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to propose a low-release and non-allergenic clean-scented acrylic emulsion and a preparation method thereof, aiming at the defects of high VOC content and high allergenicity of existing interior wall paints. Monomer is the main component, and it is purified by steam method to remove residual monomer in the emulsion to ensure no sensitizing VOC components

Method used

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  • Low-release non-sensitization odorless acrylic emulsion, interior wall coating and preparation method of low-release non-sensitization odorless acrylic emulsion
  • Low-release non-sensitization odorless acrylic emulsion, interior wall coating and preparation method of low-release non-sensitization odorless acrylic emulsion
  • Low-release non-sensitization odorless acrylic emulsion, interior wall coating and preparation method of low-release non-sensitization odorless acrylic emulsion

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preparation example Construction

[0048] The present embodiment also provides a preparation method of the above-mentioned clean taste acrylic emulsion, comprising:

[0049] Mix tert-butyl methacrylate, n-hexyl acrylate, ethyl methacrylate, methacrylic acid and polydimethylsiloxane, add an initiator to polymerize at 85-90°C to obtain a water-based polymer emulsion, and use water vapor Purify.

[0050] Further, the preparation method of above-mentioned aqueous polymer emulsion specifically comprises:

[0051] Step S1: combine 3-8 parts of tert-butyl methacrylate, 10-15 parts of n-hexyl acrylate, ethyl methacrylate, methacrylic acid, polydimethylsiloxane, initiator and The emulsifiers are mixed to obtain a pre-emulsion.

[0052] Preferably, also comprise the step of preparing seed emulsion:

[0053] Step S2: add 30-50 parts of water and 1-2 parts of emulsifier into another container, stir and dissolve fully, heat up to 85-90°C, and slowly dropwise add the pre-emulsification prepared in step S1 with a mass frac...

Embodiment 1

[0079] The present embodiment provides a low-release and non-sensitizing clean-flavored acrylic emulsion, the raw materials of which include in parts by weight:

[0080] 12 parts of tert-butyl methacrylate, 24 parts of n-hexyl acrylate, 3 parts of ethyl methacrylate, 5 parts of methacrylic acid, 1 part of polydimethylsiloxane, 0.2 parts of potassium peroxide, 3 parts of emulsifier, 0.1 part of oxidizing agent, 0.1 part of reducing agent, 3 parts of pH adjuster, and 130 parts of water.

[0081] Among them, the emulsifier is polyoxyethylene silane; the oxidizing agent is persulfate; the reducing agent is sodium sulfite; the pH adjusting agent is sodium hydroxide

[0082] The preparation method of this taste-free acrylic emulsion includes:

[0083] (1) Under normal temperature and pressure, add 1 part of emulsifier and 50 parts of water in container A, disperse and stir until fully mixed, then add 3 parts of tert-butyl methacrylate and 10 parts of n-hexyl acrylate successively. ...

Embodiment 2

[0090] The present embodiment provides a low-release and non-sensitizing clean-flavored acrylic emulsion, the raw materials of which include by weight:

[0091] 14 parts of tert-butyl methacrylate, 23 parts of n-hexyl acrylate, 6 parts of ethyl methacrylate, 2 parts of methacrylic acid, 2 parts of polydimethylsiloxane, 0.3 parts of potassium peroxide, 5 parts of emulsifier, 0.2 part of oxidizing agent, 0.2 part of reducing agent, 5 parts of pH adjuster, and 150 parts of water.

[0092] Among them, the emulsifier is polyoxyethylene silane; the oxidizing agent is persulfate; the reducing agent is sodium sulfite; the pH adjusting agent is sodium hydroxide

[0093] The preparation method of this taste-free acrylic emulsion includes:

[0094](1) Under normal temperature and pressure, add 2 parts of emulsifier and 60 parts of water in container A, disperse and stir until fully mixed, then add 8 parts of tert-butyl methacrylate and 15 parts of n-hexyl acrylate successively, the form...

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Abstract

The invention discloses a low-release non-sensitization odorless acrylic emulsion, an interior wall coating and a preparation method thereof, and belongs to the technical field of latex paint. The odorless acrylic emulsion is mainly prepared by the following preparation method: mixing tert-butyl methacrylate, n-hexyl acrylate, ethyl methacrylate, methacrylic acid and polydimethylsiloxane, adding an initiator, polymerizing at 85-90 DEG C to obtain a water-based polymer emulsion, and purifying with water vapor. The raw materials of the interior wall coating comprise the odorless acrylic emulsion. According to the odor-free acrylic emulsion, acrylic monomers are used as main components, and residual monomers in the emulsion are removed through steam purification, so that the odor-free acrylic emulsion does not contain sensitized VOC (volatile organic compounds) components. The VOC component in the interior wall coating is detected by liquid chromatography, and the interior wall coating does not contain formaldehyde, acetaldehyde, benzene series, vinyl acetate, naphthalene, n-butyl alcohol and other components and is low in sensitization.

Description

technical field [0001] The invention belongs to the technical field of latex paint, and in particular relates to a low-release and non-sensitizing acrylic emulsion with clean taste, interior wall paint and a preparation method thereof. Background technique [0002] Interior wall coatings are used for interior wall decoration, and the space is relatively closed. After construction, the volatile organic compounds (VOCs) in the coatings are volatilized into the air, resulting in an increase in the VOC content of indoor air, and the substances in VOCs often have obvious The smell will cause certain harm to the constructors of interior decoration, especially those who have respiratory diseases, such as asthma, tracheal diseases, etc., causing respiratory allergies and endangering health. Individuals who are sensitive to odors stay in a closed space with high VOC content for a long time, causing symptoms such as chest tightness and dizziness. [0003] The allergens to respiratory...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F6/00C08F220/18C08F220/06C09D151/08C09D5/08C09D7/61
CPCC08F283/12C08F6/003C09D151/085C09D5/08C09D7/61C08K2003/2241C08K2003/265C08F220/1804C08F220/1806C08F220/1802C08F220/06C08L51/085C08K3/22C08K3/26C08K3/346C08K5/47C08K13/02Y02A50/20
Inventor 区英强陈颖刘伟达陈文基蔡天康蔡智权
Owner 广东嘉宝莉科技材料有限公司
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