Biodegradable film and manufacturing method thereof

A biodegradable film and biodegradable material technology, applied in the field of biodegradable film and its manufacturing, can solve the problems of unpractical use of packaging bags, low melt strength, and small global production capacity.

Inactive Publication Date: 2019-12-31
广东崇熙环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] PBAT (terephthalic acid-adipic acid-butylene glycol copolyester) is currently the biodegradable film material with the best comprehensive performance, but there are problems of high price and small global production capacity
Polyvinyl alcohol (PVA), which is 30% cheaper than PBAT and has much larger global production capacity, is also a film-forming raw material with good biodegradability, but due to the hydrogen bonding of its

Method used

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  • Biodegradable film and manufacturing method thereof
  • Biodegradable film and manufacturing method thereof

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Embodiment Construction

[0052] In order to make the purpose, features and advantages of the present application more obvious and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Apparently, the described embodiments are some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0053] While the preferred embodiments of the embodiments of the present application have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is understood. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications that fall within t...

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Abstract

The invention provides a biodegradable film and a manufacturing method thereof. The biodegradable film comprises an inner layer and an outer layer, and the inner layer and the outer layer are respectively composed of the following components by weight percentage: 20%-100% of PBAT, 0%-35% of PLA, 0%-30% of starch, 0%-30% of inorganic powder, 0%-50% of other biodegradable material and 0%-15% of a modification assistant; a middle layer is composed of the following components: 30%-75% of PVA, 0%-60% of PLA, 0%-60% of PBAT, 0%-30% of starch, 0%-30% of inorganic powder, 0%-50% of a biodegradable material and 10%-40% of a modification additive. On the premise of ensuring the water resistance of the biodegradable films, the PVA (polyvinyl alcohol) material is utilized to achieve the goals of increasing the sources of the biodegradable materials and lowering the cost of the biodegradable films.

Description

technical field [0001] The application relates to the field of plastic films, in particular to a biodegradable film and a manufacturing method thereof. Background technique [0002] Most of the traditional plastics have stable properties and are not easy to be rapidly degraded by various environmental factors in nature, so that there is a serious harm to the environment caused by waste plastics, that is, the so-called white pollution. Since the beginning of the 21st century, protecting the global environment, building a resource-recycling society, and taking the path of sustainable development have become global hot spots and urgent tasks. Biodegradable plastics can be digested and decomposed into carbon dioxide, water, other biomass and inorganic substances by microbial erosion in a short period of time, and are low-load materials for the environment. [0003] PBAT (terephthalic acid-adipic acid-butylene glycol copolyester) is currently the biodegradable film material with...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/18B32B27/08B32B27/30B32B33/00C08L67/02C08L67/04C08L3/06C08L29/04C08K13/02C08K3/26C08K5/20C08K5/098C08K5/053C08J5/18
CPCB32B27/08B32B27/18B32B27/306B32B27/36B32B33/00B32B2307/7163C08J5/18C08J2329/04C08J2367/02C08J2403/06C08J2467/04C08K5/053C08K5/098C08K5/20C08K13/02C08K2003/265
Inventor 裴小勤魏杰张力骆东蒋明达黎世沉张建平陈东成张宇媚
Owner 广东崇熙环保科技有限公司
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