Sealing agent and preparation method thereof

A technology of sealing agent and film-forming agent, applied in the field of sealing agent and its preparation, can solve the problems of long release time of harmful gas molecules, high treatment cost, threat to health, etc., and achieve easy large-scale industrial production, economic and social benefits. The effect of high and efficient sealing plate

Inactive Publication Date: 2017-12-12
伦慧东
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Problems solved by technology

[0004] In order to solve the technical problems of long release time of harmful gas molecules after interior decoration, threat to health, and high treatment cost, the present invention provides a sealing agent and its preparation method. By using amino compounds, film-forming agents and glacial acetic acid as functional components, And the content of each component is scientifically proportioned to achieve the technical effect of efficiently sealing the surface of the furniture, blocking the release of harmful gases such as formaldehyde, benzene, and aldehydes in pollution sources, and quickly purifying the indoor air, which is an effective guarantee for the health of the occupants

Method used

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  • Sealing agent and preparation method thereof

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Embodiment Construction

[0023] In order to better illustrate and understand the present invention, the composition, preparation method and effect of the present invention will be described in detail below with specific examples, but the present invention is not limited in any form. The reagents used can be obtained from commercial sources unless otherwise specified. Table 1 lists composition examples of the blocking agent of the present invention.

[0024] Table 1 Examples of sealant composition

[0025]

[0026] The above-mentioned chitosan and / or its derivatives preferably have a degree of deacetylation of 80-95% and a viscosity not greater than 0.25 Pa·s.

[0027] Chitosan and / or its derivatives with medium or high degree of deacetylation are selected, which have better film-forming performance, more amino groups in the molecule, and are more conducive to the reaction of free formaldehyde at the interface. The viscosity is more suitable for hydroxypropyl The combination of methyl cellulose ach...

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Abstract

The invention discloses a sealing agent and a preparation method thereof and belongs to the field of air purification. According to the adopted technical scheme, the sealing agent is characterized by being prepared from, by mass, 0.1-20% of amido compound, 0.05-10% of film-forming agent and 0-10% of glacial acetic acid. The preparation method comprises the following steps that a reagent is measured by mass percent for usage; a dispersion solution of a solution amido compound and pre-mixed liquid of the film-forming agent and the glacial acetic acid are prepared respectively; the dispersion solution of the amido compound is poured into the prepared pre-mixed liquid, and stirring is performed for 20-40 minutes to obtain the sealing agent. The sealing agent has the advantages of being good in film-forming performance and easy to spread, quickly and efficiently sealing the surfaces of boards, furniture and the like and efficiently purifying air. The preparation method is simple and low in cost, and large-scale industrial production is promoted.

Description

technical field [0001] The invention relates to the field of air purification, in particular to a sealing agent and a preparation method thereof. Background technique [0002] Plywood, particleboard, MDF (medium density fiberboard) and other wooden materials and furniture and building materials made of them often contain a large amount of formaldehyde-based adhesives. In recent years, health damage such as sick building syndrome caused by formaldehyde has become prominent, causing eye and respiratory tract damage In addition to extreme discomfort, formaldehyde can also cause many diseases, such as respiratory diseases, irregular menstruation, newborn deformities, acute mental depression, and even respiratory, skin, and digestive tract cancers, and formaldehyde has been recognized by the World Health Organization as a carcinogen However, due to its low cost and easy manufacture, formaldehyde is still widely used in various construction, decoration and decoration materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/28C09D171/02C09D129/04C09D105/08C09D7/12
CPCC09D101/284C08K5/17C08K5/21C08K5/24C08L2205/025C08L2205/03C09D105/08C09D129/04C09D171/02C08L5/08C08K5/09C08L29/04C08L1/284
Inventor 伦慧东左桂福孟宪光
Owner 伦慧东
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