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Fully biodegrade automotive protective film and preparation method thereof

A protective film and all-biological technology, applied in the direction of chemical instruments and methods, vehicle parts, layered products, etc., can solve the problems that cannot satisfy the seat protective film, etc., and achieve simple and mature production technology, excellent film-forming performance, excellent The effect of soft performance

Inactive Publication Date: 2018-04-03
山东天野生物降解新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The degradable film has openings and cannot meet the requirements of the seat protection film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In the examples, the PLA grade Revode101, Zhejiang Hisun Biomaterials Co., Ltd., has a density of 1.25±0.05 and a melting point of 140-155°C; the molecular weight of the hydroxyl-terminated polyacrylate isooctyl is 1200-1800; the polycaprolactone is LP841 from BASF Biomaterials Co., Ltd., Germany; the PBAT grade TH801T, Dongguan Renju Biodegradable Plastic Co., Ltd., melting point 110-120°C, density 1.2-1.28 g / cm 3 .

[0025] Table 1 is embodiment and comparative example, and the difference of embodiment and comparative example is that comparative example 1 has removed polycaprolactone on the basis of embodiment 6, and the consumption of butyl citrate is embodiment 6 polycaprolactone and The sum of butyl citrate consumption; Comparative example 2 has removed butyl citrate on the basis of embodiment 6, and the consumption of polycaprolactone is the sum of embodiment 6 polycaprolactone and butyl citrate consumption; Comparative example 3 is that the ratio of PBAT and iso...

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Abstract

The invention provides a fully biodegrade automotive protective film which comprises three layers, wherein two outer layers are prepared from the following components in parts by weight: 70-90 parts of PBAT (Polybutylene Terephthalate) and 10-30 parts of hydroxy-terminated iso-octyl polyacrylate; the intermediate layer is prepared from the following components in parts by weight: 100 parts of PLA(Polylactic Acid), 50-80 parts of a flexible modifier mixture and 0.5-1.0 part of a nucleating agent; a ratio of the thicknesses of the three layers is 1:1:1; the total thickness is 8-12 microns. Theprotective film is produced by a three-layer co-extrusion method; the hydroxy-terminated iso-octyl polyacrylate is added into the outer layer, so that the self-adhesion property of the protective filmis improved; blend of the PBAT and the hydroxy-terminated iso-octyl polyacrylate is adopted, the PLA with high strength is adopted on the inner layer, the nucleating agent is added to further improvethe transparency of the material, and the PLA is subjected to plasticized and toughened modification by adopting the flexible modifier mixture; the automotive protective film has excellent self-adhesion property and is excellent in flexibility, good in transparency and high in strength.

Description

technical field [0001] The invention relates to a fully biodegradable automobile protective film and a preparation method thereof, which is mainly used for covering the surface of automobile seats and belongs to the field of polymer material processing and application. Background technique [0002] To protect the surface of valuable objects, one of the most commonly used methods is to stick a layer of protective film on the surface of the protected object, and then remove the film after finishing transportation, storage, processing and assembly; the surface The substrates of protective films mainly include paper and plastic films; plastic films are the most mainstream surface protective film substrates because of their good transparency, elongation and good processability; although plastic protective films are more widely used It is becoming more and more widespread, but the non-degradability of plastics, the pollution of waste plastics to the environment, and the increasing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L33/08C08L67/04C08K5/11C08K3/36B32B27/18B32B27/08B32B33/00
CPCC08L67/02B32B27/08B32B27/18B32B33/00B32B2250/24B32B2307/412B32B2307/50B32B2307/558B32B2307/7163B32B2605/08C08L67/04C08L2201/06C08L2201/10C08L2203/16C08L2205/025C08L2205/24C08L33/08C08K5/11C08K3/36
Inventor 付宇经宣兆志阎宝林李开磊张鑫科
Owner 山东天野生物降解新材料科技有限公司
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