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A kind of hot melt adhesive meeting the requirements of low atomization of automobiles and preparation method thereof

A low-atomization, hot-melt adhesive technology, applied in the direction of adhesives, wax adhesives, adhesive additives, etc., can solve the problem of hot-melt adhesive atomization exceeding the standard, to reduce volatilization, avoid contact, and reduce degradation Effect

Active Publication Date: 2021-03-12
NANJING XIEZHONG AUTO AIRCONDITIONER CO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the invention is to provide a hot melt adhesive that meets the requirements of low atomization for automobiles and its preparation method, which solves the problem of excessive atomization of the existing hot melt adhesive

Method used

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  • A kind of hot melt adhesive meeting the requirements of low atomization of automobiles and preparation method thereof
  • A kind of hot melt adhesive meeting the requirements of low atomization of automobiles and preparation method thereof
  • A kind of hot melt adhesive meeting the requirements of low atomization of automobiles and preparation method thereof

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preparation example Construction

[0039] A kind of preparation method of the hot-melt adhesive that meets automobile low atomization requirement of the present invention comprises the following steps:

[0040] (a) Put thermoplastic elastomer, plasticizer and antioxidant into the reaction kettle and heat to 50°C-70°C and mix for 1 hour;

[0041] (b) Then heat up to 150°C under a vacuum state of -0.09Mpa to ~0.07Mpa, and melt the thermoplastic elastomer uniformly by stirring;

[0042] (c) Add fillers and plasticizers, stir evenly, add devolatilizer, continue to heat up to 200°C, and then stir for 5 to 30 minutes

[0043] (d) Finally, add the adsorbent, stir evenly, and then cool the briquette.

[0044] The technical scheme of the present invention utilizes a high degree of hydrogenation elastomer material to provide basic elasticity. A high degree of hydrogenation means very few double bonds and high temperature stability, and it is not easy to decompose small molecular substances, and it can be plasticized by ...

Embodiment 1

[0047] A hot-melt adhesive meeting the low atomization requirements of automobiles and a preparation method thereof, which mainly consists of the following raw materials in parts by weight:

[0048]

Embodiment 2

[0050] A hot-melt adhesive meeting the low atomization requirements of automobiles and a preparation method thereof, which mainly consists of the following raw materials in parts by weight:

[0051]

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Abstract

The invention discloses a hot melt adhesive capable of meeting low atomization requirements of automobiles and a preparation method of the hot melt adhesive. The hot melt adhesive is prepared from thefollowing raw materials in parts by weight: 20-60 parts of a thermoplastic elastomer; 20-40 parts of a plasticizer; 10 to 40 parts of a tackifier; 10-40 parts of a filler; 0.2 to 2 parts of a devolatilization agent; 0.2 to 2 parts of an adsorbent; and 0.5 to 1 part of an antioxidant; wherein the thermoplastic elastomer is at least one selected from POE, EPR, HSBC, SEBS, SEPS and SEEPS, the plasticizer is high-flash-point hydrogenated white oil, the carbon content% CA of aromatic hydrocarbon components in the hydrogenated white oil is 0%, the ratio of the carbon content% CP of paraffin components to the carbon content% CN of cycloparaffin components is 60: 40-80: 20. The preparation method comprises the steps of hot melting of the raw materials, vacuum devolatilization, cooling and briquetting. The problem that existing hot melt adhesive atomization exceeds the standard is solved.

Description

technical field [0001] The invention relates to automotive interior materials, in particular to a hot-melt adhesive meeting the low atomization requirements of automobiles and a preparation method thereof. Background technique [0002] Hot melt adhesive is an environmentally friendly non-solvent-based thermoplastic adhesive, which avoids the negative effects of solvent volatilization of traditional solvent-based adhesives, and thus has been widely used in automotive interiors, household items, food and medicine and other fields. However, there are still some low-molecular substances in the composition of hot melt adhesives, which will still volatilize and atomize at high temperatures, and will condense on low-temperature surfaces such as automobile glass and lampshades, resulting in a decrease in the transparency of the glass and affecting the sight of drivers and passengers. This has brought great hidden dangers to driving safety. Therefore, major international automobile ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J153/02C09J191/06C09J11/08
CPCC08L2205/035C08L2207/04C09J11/08C09J153/025C09J191/06C08L53/025C08L23/22C08L83/04C08L57/02C08L91/06C08L23/0815
Inventor 曹正艳奚治新王大健
Owner NANJING XIEZHONG AUTO AIRCONDITIONER CO CO LTD
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