Yellowing-resistant and bottom-impermeable polymer engineering membrane

A polymer, yellowing-resistant technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, layered products, etc. Achieve the effect of no color difference, good flatness, and few crystal points

Active Publication Date: 2021-03-19
浙江华清包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The glue of the engineering film used at this stage is mainly polyurethane glue, which mainly has the problem of not being resistant to yellowing, resulting in color difference, which affects the use and aesthetics

Method used

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  • Yellowing-resistant and bottom-impermeable polymer engineering membrane

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] Such as figure 1 A kind of anti-yellowing and bottom-proof polymer engineering film as shown, comprising PET surface layer 1, glue layer 2, outer milky white masterbatch layer 3, inner milky white masterbatch layer 4 and bottom film 5; said outer milky white masterbatch The layer includes LDPE and milky white masterbatch, the inner milky white masterbatch layer includes LLDPE and milky white masterbatch, and the glue layer is composed of the following materials in parts by weight: 90 parts of acrylic glue, 8-12 parts of tackifying resin, curing agent 0.1-0.5 parts, 10 parts of water-based polyurethane resin, 1-5 parts of modified nano silicon dioxide, and 70-90 parts of solvent, wherein the solvent is selected from ethyl acetate or toluene. The weight ratio of LDPE and milky white masterbatch in the outer milky white masterbatch layer is 1:1. The wei...

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Abstract

The invention relates to a yellowing-resistant and bottom-impermeable polymer engineering membrane. The glue of the engineering membrane used at the present stage is mainly polyurethane glue, and mainly has the problem of intolerance to yellowing, so that chromatic aberration exists, and the use and attractiveness are influenced. The membrane is characterized by comprising a PET surface layer, a glue layer, an outer milky-white master batch layer, an inner milky-white master batch layer and a base membrane, wherein the outer milky-white master batch layer comprises LDPE and milky white masterbatch, the inner milky-white master batch layer comprises LLDPE and milky white master batch, the glue layer is prepared from the following materials in parts by weight: 90 parts of acrylic acid glue,8-12 parts of tackifying resin, 0.1-0.5 part of a curing agent, 10 parts of waterborne polyurethane resin, 15 parts of modified nano silicon dioxide and 70-90 parts of a solvent, and the solvent is selected from ethyl acetate or methylbenzene. The membrane has the advantages of excellent flatness, smooth finish, few crystal points, strong covering property, no bottom penetration and no color penetration. By improving a glue formula and combining the milky-white master batch layer, a better yellowing-resistant effect is achieved, and no color difference is generated after long-term use.

Description

technical field [0001] The invention relates to a yellowing-resistant and bottom-impermeable polymer engineering film. Background technique [0002] With the development of my country's economy, especially the development of real estate, building decoration materials and electronic and electrical products have also grown rapidly. Building decoration materials such as substrate ceiling panels, aluminum-plastic panels, stainless steel panels, integrated wall panels, cabinet kitchen doors, floors, floor tiles, galvanized panels, household appliances, electronic components, etc. require a large number of protective films to protect the surface of their products. Protection, to reduce the loss of surface scratches encountered in the process of product transportation, handling, storage, display, use and installation in the circulation link from the factory to the market. Therefore, the protective film has a huge market and usage. [0003] The glue of the engineering film used at...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/20B32B27/30B32B27/32B32B27/36B32B7/12B32B33/00C09J133/04C09J11/08C09J11/04
CPCB32B27/36B32B27/32B32B27/20B32B27/08B32B7/12B32B27/306B32B33/00C09J133/04C09J11/08C09J11/04C08K2201/011B32B2250/24B32B2307/41B32B2307/406C08L75/04C08K9/00C08K3/36Y02W90/10
Inventor 黄飞成杜新国陈峰李玲
Owner 浙江华清包装材料有限公司
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