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Polystyrene foam tape for automobiles

A styrofoam and foaming technology, used in adhesives, adhesive types, film/sheet adhesives, etc., can solve the problems of excessive VOC volatilization, reduced adhesion, loss of viscosity, etc. Lightweight, improved resilience and impact resistance, easy die-cutting effect

Pending Publication Date: 2019-03-22
SHENZHEN NIKTO TAPE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the automotive tapes in the domestic market are ordinary tapes, some of which have excessive VOC volatilization, and some ordinary low-VOC tapes have the disadvantages of poor elasticity and toughness due to the pursuit of environmental protection. Problems with reduced or lost tack

Method used

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  • Polystyrene foam tape for automobiles
  • Polystyrene foam tape for automobiles
  • Polystyrene foam tape for automobiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prepare polyacrylate styrofoam according to the following raw materials in parts by weight: 80 parts of butyl acrylate, 20 parts of methyl methacrylate, 5 parts of rubber elastic body, 0.8 part of sodium laurylsulfonate emulsifier, buffer carbonic acid 0.2 part of sodium hydrogen, 1 part of blowing agent n-pentane, 5 parts of aziridine crosslinking agent. Wherein the rubber elastic body can be the emulsion of natural rubber, modified natural rubber or styrene-butadiene rubber, and the rubber can be used alone or in combination.

[0034] The preparation method of polyacrylate styrofoam is as follows:

[0035] S1. Add water, butyl acrylate, methyl methacrylate, rubber elastomer and 20% to 30% compound emulsifier into the first reaction vessel, stir and heat up to 80° C. within 30 minutes;

[0036] S2. Add water and the rest of the composite emulsifier to the second reaction vessel under nitrogen protection, stir and heat up to 85° C., and add the initiator ammonium persu...

Embodiment 2

[0046] Prepare polyacrylate styrofoam with the following raw materials in parts by weight: 70 parts of ethyl acrylate, 25 parts of a mixture of methyl methacrylate and vinyl acetate as the hard monomer, 8 parts of polyurethane elastomer, dodecyl sulfonate 1 part of composite emulsifier of sodium laurate and potassium lauricate, 0.2 part of buffering agent sodium bicarbonate, 0.8 part of foaming agent n-hexane, 6 parts of polycarbodiimide crosslinking agent.

[0047] The preparation method of polyacrylate styrofoam is as follows:

[0048] S1. Add water, ethyl acrylate, methyl methacrylate, vinyl acetate mixture, polyurethane elastomer and 20% to 30% compound emulsifier into the first reaction vessel, stir and heat up to 85° C. within 30 minutes;

[0049] S2. Add water and the rest of the composite emulsifier to the second reaction vessel under nitrogen protection, stir and heat up to 90°C, and add the initiator ammonium persulfate;

[0050]S3. Drop the materials in the first r...

Embodiment 3

[0059] Prepare polyacrylate styrofoam according to the following raw materials in parts by weight: the soft elastomer is 80 parts of a mixture of butyl acrylate and ethyl acrylate, 22 parts of vinyl acetate, 8 parts of silicone elastomer, dodecyl sulfonic acid 0.5 parts of composite emulsifier of sodium and potassium stearate, 0.2 parts of buffering agent sodium bicarbonate, 1 part of foaming agent n-heptane, and 8 parts of aziridine crosslinking agent.

[0060] The preparation method of polyacrylate styrofoam is as follows:

[0061] S1. Add water, a mixture of butyl acrylate, ethyl acrylate and vinyl acetate, silicone elastomer and 20% to 30% compound emulsifier into the first reaction vessel, stir and heat up to 80° C. within 30 minutes;

[0062] S2. Add water and the rest of the composite emulsifier to the second reaction vessel under nitrogen protection, stir and heat up to 90°C, and add the initiator ammonium persulfate;

[0063] S3. Drop the materials in the first react...

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Abstract

The invention discloses a polystyrene foam tape for automobiles. The polystyrene foam tape comprises a first release layer, a first polystyrene foam layer, a substrate layer, a second polystyrene foamlayer and a second release layer which are adhered in sequence from top to bottom, wherein the substrate layer is of a double-layer structure and comprises a fiber layer and a foam layer; the first polystyrene foam layer and the second polystyrene foam are pressure sensitive adhesives or polyacrylic ester polystyrene foam with micropore structures, and are made from the following raw materials inparts by weight: 70-80 parts of a soft monomer, 20-30 parts of a hard monomer, 5-10 parts of an elastomer, 0.5-1 part of an emulsifier, 0.2-0.5 part of a buffer agent, 0.5-1 part of a foaming agent and 5-10 parts of a cross-linking agent. Due to adoption of a substrate of a double-layer structure of a fiber layer and a foam layer, and the polystyrene foam as an adhesive layer, the buffering property is improved while strength is ensured, and die cutting molding can be easily implemented; the acrylic adhesive is environmental-friendly in preparation process and good in temperature resistance and can be widely applied to automobile trim adhesion and electronic instrument fixation.

Description

technical field [0001] The invention relates to the field of adhesive tapes, in particular to a foam adhesive tape for automobiles. Background technique [0002] With the rapid development of the industry, the existing tapes on the market meet some of people's needs to a certain extent, but the market for tape products is becoming more and more diverse, and tape products are showing high-end and functional trends. High-pollution, high-energy-consuming The development of solvent-based tapes is increasingly restricted by policies, and tapes with both environmental protection and functionality have been focused on the development. Environmentally-friendly tapes are increasingly used in architectural decoration, packaging, medical, automotive, electronic components and other fields. [0003] At present, most of the automotive tapes in the domestic market are ordinary tapes, some of which have excessive VOC volatilization, and some ordinary low-VOC tapes have the disadvantages of...

Claims

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Application Information

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IPC IPC(8): C09J7/29C09J133/08C09J11/06C09J11/08
CPCC09J7/29C09J11/06C09J11/08C09J133/08C09J2400/243C09J2400/263C09J2433/00C08L7/00C08L9/06C08K5/42C08K5/3412
Inventor 齐登武吴卫均
Owner SHENZHEN NIKTO TAPE NEW MATERIAL CO LTD
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