Easily-stripped environmentally-friendly film, and bamboo chopstick adsorbing technology thereof

An easy-to-peel, environmentally-friendly technology, which is applied to tableware, applications, and home appliances, can solve problems affecting degradation performance and achieve the effects of easy-to-peel film, environmental protection, and easy operation

Active Publication Date: 2018-11-30
黑龙江鑫达生物基复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of additives improves the compatibility of the PLA/PBAT system to a certa

Method used

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  • Easily-stripped environmentally-friendly film, and bamboo chopstick adsorbing technology thereof
  • Easily-stripped environmentally-friendly film, and bamboo chopstick adsorbing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An easy-to-peel environmentally friendly film, comprising the following components: polylactic acid (PLA), poly(butylene terephthalate-co-hexanediol butanediol) ester (PBAT), chitosan, nano-titanium dioxide, poly Hydroxybutyrate caproate, chain extender and lubricant. Among them, the weight average molecular weight of PLA is 1.35×10 5 g·mol -1 ;PBAT weight average molecular weight 4×10 5 g·mol -1 ; The chain extender is KL-E4370; the lubricant is ethylene bis stearic acid amide.

[0032] Preparation method: 1) Preparation of environmentally friendly film modified material: according to the above ratio, polylactic acid (PLA), poly(butylene terephthalate-co-hexanediol butanediol) ester (PBAT), chitosan Sugar, nano-titanium dioxide, polyhydroxybutyrate caproate, chain extender and lubricant are mechanically blended, and the uniformly mixed raw materials are put into the hopper of a twin-screw extruder, melt-extruded and granulated to obtain an environmentally friendly ...

Embodiment 2

[0048] An easy-to-peel environment-friendly film, comprising the following components: 65 parts of polylactic acid (PLA), 40 parts of poly(butylene terephthalate-co-hexanediol butanediol) ester (PBAT), 2 parts of chitosan 1 part, 1 part of nano-titanium dioxide, 8 parts of polyhydroxybutyrate caproate, 0.2 part of chain extender and 0.8 part of lubricant. Among them, the weight average molecular weight of PLA is 1.6×10 5 g·mol -1 ; PBAT weight average molecular weight 4.2 × 10 5 g·mol -1 ; The chain extender is KL-E4300; the lubricant is ethylene bis stearic acid amide.

[0049] Preparation method: 1) Preparation of environmentally friendly film modified material: according to the above ratio, polylactic acid (PLA), poly(butylene terephthalate-co-hexanediol butanediol) ester (PBAT), chitosan Sugar, nano-titanium dioxide, polyhydroxybutyrate caproate, chain extender and lubricant are mechanically blended, and the uniformly mixed raw materials are put into the hopper of a tw...

Embodiment 3

[0054] An easy-to-peel environment-friendly film, comprising the following components: 65 parts of polylactic acid (PLA), 45 parts of poly(butylene terephthalate-co-hexanediol butanediol) ester (PBAT), 10 parts of chitosan 0.1 part of nano-titanium dioxide, 7 parts of polyhydroxybutyrate caproate, 0.8 part of chain extender and 0.1 part of lubricant. Among them, the weight average molecular weight of PLA is 1.2×10 5 g·mol -1 ; PBAT weight average molecular weight 3.8 × 10 5 g·mol -1 ; The chain extender is KL-E4370; the lubricant is ethylene bis stearic acid amide.

[0055] Preparation method: 1) Preparation of environmentally friendly film modified material: according to the above ratio, polylactic acid (PLA), poly(butylene terephthalate-co-hexanediol butanediol) ester (PBAT), chitosan Sugar, nano-titanium dioxide, polyhydroxybutyrate caproate, chain extender and lubricant are mechanically blended, and the uniformly mixed raw materials are put into the hopper of a twin-sc...

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Abstract

The invention belongs to the field of polymer materials, and concretely relates to an easily-stripped environmentally-friendly film, and a production method and a bamboo chopstick adsorbing technologythereof. The easily-stripped environmentally-friendly film comprises, by weight, 50-65 parts of PLA, 30-45 parts of PBAT, 2-10 parts of chitosan, 0.1-1 part of nanometer titanium dioxide, 3-8 parts of poly(3-hydroxybutyrate-co-3-hydroxhexanoate), 0.2-0.8 part of a chain extender and 0.1-1 part of a lubricant. The film has a good biocompatibility, can be composted and decomposed under natural conditions, and ensures that the film has no pollution to the environment after being discarded; the environmentally-friendly film can be completely adsorbed to bamboo chopsticks through electrostatic adsorption, so the problem of pollution of bacteria existing in the use process of the bamboo chopsticks to foods is avoided, and the cleaning problem of the used bamboo chopsticks is solved; and the easily-stripped environmentally-friendly film has the advantages of using of a routine device, simple technology, easiness in operation, and convenience in industrial promotion and application.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to an easy-peelable environmental protection film, a production method thereof, and a technique for absorbing bamboo chopsticks by the film. Background technique [0002] Facing the increasingly serious white pollution problem, our country has begun to take measures to prevent and control "white pollution". From the perspective of large supermarket implementation alone, the situation is relatively good, and the use of plastic shopping bags has been greatly reduced. However, it still has great limitations, and it does not essentially solve the problem of "white pollution". In many fields such as clothing, food packaging, fresh-keeping, and disposable products, the use of plastic films is still shocking. Plastic is extracted from petroleum, and petroleum is a precious natural resource for human beings and is a non-renewable resource. At present, most plastics are...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L67/02C08L5/08C08K3/22C08K5/20C08J5/18A47G21/06
CPCA47G21/103C08J5/18C08J2367/04C08J2405/08C08J2467/02C08J2467/04C08K5/20C08K2003/2241C08K2201/011
Inventor 马庆维张海斌崔成杰
Owner 黑龙江鑫达生物基复合材料有限公司
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