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Process for adsorbing environment-friendly thin film onto conventional tableware and preparation method thereof

A film adsorption and environmental protection technology, applied in the field of increasing electrostatic adsorption and environmental protection film production, can solve problems such as white pollution, and achieve the effect of easy operation, simple process, and easy popularization and application

Inactive Publication Date: 2018-04-27
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still has great limitations and does not essentially solve the problem of "white pollution"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 60% PLA and 40% PBAT are mixed to obtain a PLA / PBAT modified compound, and the environment-friendly film modified compound is obtained by twin-screw extrusion at a temperature of 160-180°C. The obtained modified material is prepared by a single-screw blown film machine using an upward blown film method. The obtained PLA / PBAT modified film is vacuum-pressurized and heated on the surface of the tableware with a vacuum special-shaped heat press, so that the environmentally friendly film can be completely attached to the traditional tableware, so that there is no gas residue in between, and its electrostatic force is increased to complete the environmental protection. Film clings to traditional tableware.

Embodiment 2

[0015] 60% PLA and 40% PBAT are mixed to obtain a PLA / PBAT modified compound, and the environment-friendly film modified compound is obtained by twin-screw extrusion at a temperature of 160-180°C. The obtained modified material is prepared by a single-screw blown film machine using an upward blown film method. After the obtained PLA / PBAT modified film is coated with silica gel, it is covered on the surface of the tableware, so that the environmentally friendly film can be completely attached to the traditional tableware, so that there is no gas residue in between, and the electrostatic force can be increased, thereby completing the adsorption of the environmentally friendly film to traditional tableware.

Embodiment 3

[0017] 60% PLA and 40% PBAT are mixed to obtain a PLA / PBAT modified compound, and the environment-friendly film modified compound is obtained by twin-screw extrusion at a temperature of 160-180°C. The obtained modified material is prepared by a single-screw blown film machine using an upward blown film method. After the obtained PLA / PBAT modified film is coated with silica gel, it is covered on the surface of the tableware, and the vacuum special-shaped heat press is used to vacuum press and heat, so that the environmentally friendly film can be completely attached to the traditional tableware, so that there is no gas residue in between, increasing the Its electrostatic force acts to complete the environmental film adsorption of traditional tableware.

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PUM

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Abstract

The invention relates to a process for adsorbing traditional tableware by an environmentally friendly film and a preparation method thereof, which is characterized in that the environmentally friendly film is completely adsorbed on the tableware through electrostatic adsorption, which not only avoids the problem of food contamination by bacteria existing in the tableware during use, but also It solves the problem of cleaning tableware after use. Among them, the environmentally friendly film is made of PLA / PBAT mixed material. The PLA content in the environmentally friendly film is 60%, the PBAT content is 40%, and the film thickness is 0.015mm. It has good biocompatibility It can be composted and degraded under natural conditions, ensuring that the film will not pollute the environment after it is discarded; traditional tableware refers to ceramic tableware, metal tableware, melamine tableware, PLA injection tableware, etc. Conventional equipment is used, the process is simple, the operation is easy, and it is convenient for industrial promotion and application.

Description

technical field [0001] The invention belongs to the application field of the environmental protection film, and specifically relates to a production method of the environmental protection film and a method for increasing electrostatic adsorption force. Background technique [0002] Environmental film is a biodegradable PLA / PBAT modified material. PLA is mainly made of starch-containing agricultural products such as corn, wheat, and sugar beet, and is polymerized after fermentation to produce lactic acid. It can be degraded under composting; PBAT is derived from petroleum, but it has good biocompatibility. Biodegradable under compost. It is then made by polycondensation and melt spinning. Facing the increasingly serious white pollution problem, our country has begun to take measures to prevent and control "white pollution". On December 31, 2007, the "Plastic Restriction Order" was promulgated. Only from the perspective of the implementation of large supermarkets, the situa...

Claims

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Application Information

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IPC IPC(8): A47G19/00C08L67/04C08L67/02B32B37/06B32B37/10B32B37/12
CPCA47G19/00B32B37/06B32B37/10B32B37/1284B32B2255/10B32B2255/26B32B2307/7163C08J5/18C08J2367/04C08J2467/02C08L67/04C08L2201/06C08L2203/16C08L2205/02C08L67/02
Inventor 马庆维张海斌崔成杰
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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