Environment-friendly degradable release film

An environmentally friendly, release film technology, applied in the direction of coating, etc., can solve the problems of increasing the toughness of degradable environmental protection release film, achieve excellent biodegradability, good tensile strength and ductility, and benefit The effect of environmental protection

Pending Publication Date: 2021-08-06
JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent CN109624427A discloses a degradable environmentally friendly release film. Through the braided reinforcement layer and transparent braided wire, a braided structure is added inside the degradable environmentally friendly release film, thereby increasing the degradable environmental protection release film. The toughness prevents the degradable environmentally friendly release film from breaking when pulled, but it is not a truly degradable release film

Method used

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  • Environment-friendly degradable release film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An environment-friendly degradable release film comprises a base material original film layer and a release agent coating, and the material of the base material original film layer is a PLA / PBAT blend material.

[0026] Wherein, the PLA / PBAT blend material comprises the following components by weight ratio: 30 parts of PLA, 90 parts of PBAT, 4 parts of plasticizer, 4 parts of epoxy soybean oil, and 3 parts of chain extender.

[0027] And, the plasticizer is acetyl tributyl citrate.

[0028] Also, the chain extender is ADR4370S.

[0029] And, described release agent coating is stearate release agent coating.

[0030] Further, the preparation method of the environment-friendly degradable release film comprises the following steps:

[0031] The raw materials in the PLA / PBAT blended material are weighed in proportion, blended and extruded by a twin-screw extruder, pelletized, and the original film layer of the base material is formed by a film blowing machine;

[0032] A...

Embodiment 2

[0037] An environment-friendly degradable release film comprises a base material original film layer and a release agent coating, and the material of the base material original film layer is a PLA / PBAT blend material.

[0038] Wherein, the PLA / PBAT blend material comprises the following components by weight ratio: 10 parts of PLA, 70 parts of PBAT, 2 parts of plasticizer, 2 parts of epoxy soybean oil, and 1 part of chain extender.

[0039] And, the plasticizer is acetyl tributyl citrate.

[0040] Also, the chain extender is ADR4370S.

[0041] And, the release agent coating is a silicon-free release agent coating.

[0042] Further, the preparation method of the environment-friendly degradable release film comprises the following steps:

[0043] The raw materials in the PLA / PBAT blended material are weighed in proportion, blended and extruded by a twin-screw extruder, pelletized, and the original film layer of the base material is formed by a film blowing machine;

[0044] Ap...

Embodiment 3

[0049] An environment-friendly degradable release film comprises a base material original film layer and a release agent coating, and the material of the base material original film layer is a PLA / PBAT blend material.

[0050] Wherein, the PLA / PBAT blended material comprises the following components by weight ratio: 20 parts of PLA, 80 parts of PBAT, 3 parts of plasticizer, 3 parts of epoxy soybean oil, and 2 parts of chain extender.

[0051] And, the plasticizer is acetyl tributyl citrate.

[0052] Also, the chain extender is ADR4370S.

[0053]And, the release agent coating is a silicon-free release agent coating or a stearate release agent coating.

[0054] Further, the preparation method of the environment-friendly degradable release film comprises the following steps:

[0055] The raw materials in the PLA / PBAT blended material are weighed in proportion, blended and extruded by a twin-screw extruder, pelletized, and the original film layer of the base material is formed b...

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Abstract

The invention discloses an environment-friendly degradable release film which comprises a base material original film layer and a release agent coating layer, and the base material original film layer is made of a PLA / PBAT blending material; the PLA / PBAT blending material comprises the following components by weight: 10-30 parts of PLA, 70-90 parts of PBAT, 2-4 parts of a plasticizer, 2-4 parts of epoxidized soybean oil and 1-3 parts of a chain extender; the plasticizer is acetyl tributyl citrate; the chain extender is ADR4370S; and the release agent coating layer is a silicon-free release agent coating layer or a stearate release agent coating layer. The environment-friendly degradable release film disclosed by the invention is good in mechanical property and high in degradability, can be degraded into substances harmless to the environment after being used, is environment-friendly and is beneficial to environmental protection.

Description

technical field [0001] The invention belongs to the technical field of release films, in particular to an environment-friendly degradable release film. Background technique [0002] Plastics are chemical petroleum products derived from petroleum or coal, and once produced are difficult to degrade naturally. Plastic buried in the ground will not rot and degrade for 200 years. A large amount of plastic waste buried in the ground will destroy the permeability of the soil and affect the growth of plants. If livestock accidentally eats plastic mixed into feed or left in the wild, it can also cause death due to digestive tract obstruction. [0003] The release film refers to the film whose surface energy can be distinguished. The release film is not sticky or slightly sticky after contacting with specific materials under limited conditions. It is widely used in electronic power, IT display screens, mobile phones, LCD / PDA, medical, home appliance manufacturing, anti-counterfeiti...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L67/02C08L67/04C08L91/00C08K5/11C08J7/04C08J7/06
CPCC08J5/18C08J7/04C08J7/065C08J2367/02C08J2467/04C08J2491/00C08K5/11
Inventor 於险峰
Owner JIXIANGBAO TAICANG RELEASE MATERIAL TECH CO LTD
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