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PMMA ultrathin hot melt adhesive film as well as production method and application thereof

A technology of hot melt adhesive film and production method, which is applied in the direction of film/sheet adhesive, adhesive, heat activated film/sheet, etc., can solve the problem of high requirements for PMMA equipment, poor weather resistance, poor high temperature resistance, etc. problems, to achieve the effect of highlighting aging resistance, eliminating volatile corrosion, and reducing equipment investment costs

Inactive Publication Date: 2018-05-08
福建新力元反光材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, for above-mentioned problem, the present invention proposes a kind of PMMA ultra-thin hot-melt adhesive film and its manufacture method and application, and it has solved PMMA to equipment requirement high, fluidity deficiency, easily brittle problem in the film-forming process of processing process. problems, and then solve the shortcomings of the existing hot melt adhesive films, such as unstable residual melting, poor high temperature resistance, poor weather resistance, etc., and meet the quality requirements of high-quality reflective films

Method used

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  • PMMA ultrathin hot melt adhesive film as well as production method and application thereof
  • PMMA ultrathin hot melt adhesive film as well as production method and application thereof
  • PMMA ultrathin hot melt adhesive film as well as production method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A PMMA ultra-thin hot-melt adhesive film is composed of 80KG PMMA, 5KG methyl methacrylate-butadiene-styrene terpolymer, 5KG rutile titanium dioxide, and 10KG polyisobutylene rubber raw material components.

[0033] Its preparation method is:

[0034]Mix the above raw material components to obtain a mixture; put the mixture into the mixing chamber of the granulator, the granulator adopts co-rotating parallel twin-screws, the screw diameter is 20mm, the screw length-to-diameter ratio is 32:1, and the granulation temperature is 180°C , made into granules through a granulator; the granules are extruded through a single-screw extruder, and calendered by a calender to produce an ultra-thin, flexible, folding-resistant and high-weather-resistant environmental protection product with a thickness of 0.05mm. Type hot melt adhesive film. It is required that the drying temperature is 80°C, the drying time is 6h, the screw temperature is 220°C, the conveying section temperature is...

Embodiment 2

[0037] A PMMA ultra-thin hot-melt adhesive film is composed of PMMA 90KG, methyl methacrylate-butadiene-styrene terpolymer 3KG, rutile titanium dioxide 3KG, polyisobutylene rubber 4KG raw material components.

[0038] Its preparation method is:

[0039] Mix the above raw material components to obtain a mixture; put the mixture into the mixing chamber of the granulator, the granulator adopts co-rotating parallel twin-screws, the screw diameter is 20mm, the screw length-to-diameter ratio is 52:1, and the granulation temperature is 230°C , made into granules through a granulator; the granules are extruded through a single-screw extruder, calendered and formed by a calender to produce an ultra-thin 0.08mm-thick, mirror-surfaced on both sides, with a certain degree of flexibility and folding resistance And high weather resistance environment-friendly hot melt adhesive film. It is required that the drying temperature is 100°C, the drying time is 4h, the screw temperature is 240°C, ...

Embodiment 3

[0042] A PMMA ultra-thin hot-melt adhesive film is composed of PMMA 85KG, methyl methacrylate-butadiene-styrene terpolymer 10KG, rutile titanium dioxide 4KG, and tackifier 1KG raw material components.

[0043] Its preparation method is:

[0044] Mix the above raw material components to obtain a mixture; put the mixture into the mixing chamber of the granulator, the granulator adopts co-rotating parallel twin-screws, the screw diameter is 25mm, the screw length-to-diameter ratio is 35:1, and the granulation temperature is 200°C , made into granules through a granulator; the granules are extruded through a single-screw extruder, calendered and formed by a calender to produce an ultra-thin 0.08mm-thick, mirror-surfaced on both sides, with a certain degree of flexibility and folding resistance And high weather resistance environment-friendly hot melt adhesive film. The drying temperature is required to be 100°C, the drying time is 4h, the screw temperature is 230°C, the conveying...

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Abstract

The invention relates to the application field of PMMA, in particular to a PMMA ultrathin hot melt adhesive film as well as a production method and application thereof. The hot melt adhesive film is mainly used in a traffic reflective film, and overcomes the defects that an existing hot melt adhesive film has unstable residual melting, poor high-temperature resistance, poor weatherability, and thelike. The hot melt adhesive film is prepared from the PMMA, methyl methacrylate-butadiene-styrene terpolymer, rutile type titanium dioxide and a tackifier, and the weight percentages are 80% to 90% of the PMMA, 3% to 10% of the methyl methacrylate-butadiene-styrene terpolymer, 3% to 10% of the rutile type titanium dioxide, and 1% to 10% of the tackifier. The production method and an application process of the PMMA ultrathin hot melt adhesive film are shown in the figures. The production method comprises the steps of mixing, granulation, extrusion calendering and lamination.

Description

technical field [0001] The invention relates to the field of hot-melt adhesive sealing materials, in particular to an ultra-thin hot-melt adhesive film made of PMMA, its manufacturing method and its application on traffic reflective film. Background technique [0002] Reflective film is a retroreflective material that can be directly applied by using glass bead technology, microprism technology, synthetic resin technology, film technology, plastic extrusion technology, coating technology and micro-replication precision electroforming technology. Reflective materials are generally composed of four parts: a retroreflective layer, a hot-melt adhesive sealing layer, a pressure-sensitive adhesive backing layer and a release film. Among them, the hot-melt adhesive sealing layer mainly protects and shapes the retroreflective layer. Quality plays a vital role. [0003] Most of the existing hot-melt adhesive films use EVA, TPU, saturated polyester, etc., PE as the base material, add...

Claims

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Application Information

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IPC IPC(8): C09J133/12C09J11/04C09J11/08C09J7/35C09J7/20E01F9/619
CPCC08K2003/2241C09J11/04C09J11/08C09J133/12C09J2301/304C09J2433/00E01F9/619C08L51/04C08L33/22C08K3/22
Inventor 王先淋张正王文元蔡加力
Owner 福建新力元反光材料有限公司
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