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A kind of environment-friendly acrylate sealant and its preparation method and application

An acrylate and sealant technology, applied in the field of sealants, can solve problems such as human injury, environmental persistent pollution, and limited use range, and achieve the effects of low production cost, reduced production cost, and reduced long-term pollution

Active Publication Date: 2020-07-17
CHENGDU XINJING SEALING MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The plasticizers traditionally used in polyacrylate building sealant products are phthalates, which are not only harmful to the human body, but also cause persistent pollution to the environment. Therefore, their application scope is increasing more restricted

Method used

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  • A kind of environment-friendly acrylate sealant and its preparation method and application
  • A kind of environment-friendly acrylate sealant and its preparation method and application
  • A kind of environment-friendly acrylate sealant and its preparation method and application

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preparation example Construction

[0037] In addition, the embodiment of the present invention also provides a preparation method of the above-mentioned environment-friendly acrylate sealant, which includes the following steps: mixing elastic acrylate emulsion, wetting agent, dispersant, enhancer, odor-cleaning film-forming aid, Silane coupling agent, ground calcium carbonate and plasticizer.

[0038] Preferably, during the mixing process, it can be mixed in batches. For details, refer to the following operation: mix the dispersant, wetting agent and elastic acrylate emulsion to obtain a dispersion, and add the multifunctional additive Amp-95. Then it is mixed with enhancer and then mixed with odor-cleaning coalescent, plasticizer, silane coupling agent and ground calcium carbonate. According to this mixing sequence, the compatibility of each substance can be improved from the source, and the precipitation or floc can be avoided to affect the product quality. Among them, the multifunctional additive Amp-95 is ...

Embodiment 1

[0043] Add 100 parts by weight of elastic acrylate emulsion with a solid content of 59 wt% into the stirring tank, add 1.25 parts by weight of sodium tripolyphosphate, 1.25 parts by weight of NP-10 and 1.25 parts by weight of DA-02 during stirring , adjust the pH value to 7.5 with the multifunctional additive Amp-95. After stirring evenly, add 3 parts by weight of the specific surface area of ​​200m 2 / g of fumed silica, continue to stir for 5 minutes, then add 3 parts by weight of polybutene with a molecular weight of 2400, 10 parts by weight of chlorinated fatty acid methyl ester and 1.25 parts by weight of net taste film, and then slowly add 1.5 parts by weight After stirring for 10 minutes, add 100 parts by weight of 1250 mesh heavy calcium carbonate powder, stir evenly to remove air bubbles, and obtain an environmentally friendly acrylate sealant.

Embodiment 2

[0045] Add 100 parts by weight of elastic acrylate emulsion with a solid content of 61wt% into the stirring tank, add 1.25 parts by weight of sodium tripolyphosphate, 1.25 parts by weight of NP-10 and 1.25 parts by weight of DA-02 , adjust the pH value to 8 with the multifunctional additive Amp-95. After stirring evenly, add 3 parts by weight of the specific surface area of ​​200m 2 / g of fumed silica, continue to stir for 5min and then add 3 parts by weight of polybutene with a molecular weight of 1300, 7 parts by weight of chlorinated fatty acid methyl ester, 3.5 parts by weight of long-chain chlorinated wax and 1.25 parts by weight of Clean the odor and form a film, then slowly add 1.5 parts by weight of silane coupling agent, stir for 10 minutes, then add 100 parts by weight of 1250 mesh heavy calcium carbonate powder, stir evenly to remove air bubbles, and get an environmentally friendly acrylate sealant.

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Abstract

The invention relates to an environment-friendly type acrylate sealant as well as a preparation method and application thereof and belongs to the technical field of sealants. Raw materials of the sealant are prepared from elastic acrylate emulsion, a wetting agent, a dispersant, a multifunctional auxiliary agent Amp-95, a reinforcing agent, an odor-purifying film-forming auxiliary agent, a silanecoupling agent, heavy calcium carbonate and a plasticizer, wherein the plasticizer is prepared from at least two of polybutylene, chlorinated fatty acid methyl ester, long-chain chlorinated paraffin,epoxidized fatty acid methyl ester and epoxidized soybean oil. The sealant does not contain toxic and harmful substances, long-period pollution, caused by organic pollutants, on the environment is reduced, the production cost is reduced and an application range is enlarged. The preparation method comprises the step of mixing the raw materials according to the ratio; the method has the advantages of simple technology, convenience for operation and low production cost and is suitable for large-scale production and preparation of the environment-friendly type acrylate sealant. The environment-friendly type acrylate sealant is used for jointing a sealed building and manufacturing a container; the environment-friendly type acrylate sealant is safe and environmentally friendly and also has goodsticking and sealing performance.

Description

technical field [0001] The invention relates to the technical field of sealants, and in particular to an environment-friendly acrylic sealant and its preparation method and application. Background technique [0002] The plasticizers traditionally used in polyacrylate building sealant products are phthalates, which are not only harmful to the human body, but also cause persistent pollution to the environment. Therefore, their application scope is increasing more restricted. [0003] However, in the fields of construction and container manufacturing, sealant is one of the indispensable materials. Considering environmental protection, non-toxicity and harmlessness, it is necessary to improve the existing polyacrylate building sealant products. Contents of the invention [0004] One of the objectives of the present invention is to provide an environment-friendly acrylate sealant, which does not contain toxic and harmful substances, reduces long-term environmental pollution by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/04C09J11/06C09J11/08
CPCC08L2205/03C09J11/06C09J11/08C09J133/04C08L23/22C08L91/06C08L91/00C08K5/101C08K5/1515
Inventor 金朝绪
Owner CHENGDU XINJING SEALING MATERIAL TECH
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