Material for producing low-VOCs (volatile organic compounds) and low-odor environment-friendly passenger vehicle sealing strip and preparation method of material

By using amino acid zinc complex and modified aluminum magnesium hydrotalcite odor eliminator in passenger vehicle sealing strip materials, the problem of irritating odor in polyvinyl chloride materials has been solved, achieving low VOCs and low odor effects while maintaining the stability and physical properties of the materials.

CN122167912APending Publication Date: 2026-06-09CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202411799491.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, when polyvinyl chloride (PVC) materials are used in automotive interior parts, it is difficult to effectively remove the irritating odor, which affects the health of drivers and passengers, and conventional deodorizing agents are not very effective.

Method used

An amino acid zinc complex is used as deodorizer A and benzoic anhydride-modified aluminum-magnesium hydrotalcite is used as deodorizer B. Alcohols are converted into mild-smelling esters through esterification. Combined with specific proportions of raw material mixing and process parameters, the uniform reaction of each component in the material is ensured.

Benefits of technology

It effectively reduces the odor and VOC emissions from passenger vehicle sealing strips, improves the stability and reliability of the material, reduces harm to the human body, and does not affect the physical properties of the material.

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Abstract

The invention discloses a low-VOCs and low-odor material for producing an environment-friendly passenger vehicle sealing strip and a preparation method thereof, and belongs to the technical field of high polymer materials. According to the technical scheme, the PVC pipe comprises the following raw materials in parts by mass: 100 parts of PVC resin; 5 parts of a stabilizer; 40-60 parts of a plasticizer; 0.4 to 0.6 part of a lubricant; 1.3 to 1.5 parts of an antioxidant; 0.3 to 0.4 part of an ultraviolet light absorber; 0.3 to 0.5 part of a deodorant A; 0.8 to 1.0 part of a deodorant B; 10-25 parts of light active calcium carbonate; 1.0 to 1.2 parts of pigment; the deodorant A is a complex of amino acid zinc, and the deodorant B is benzoic anhydride intercalation modified aluminum-magnesium hydrotalcite. According to the invention, free small molecular alcohol with pungent smell can be captured and converted into ester with small and soft smell, so that the alcohol is effectively prevented from being converted into ether and ketone small molecules with pungent smell in the processing process, and the smell and VOCs (volatile organic compounds) of the passenger vehicle sealing strip are reduced.
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