Degradable plastic film and preparation method thereof

A technology for plastic films and raw materials, applied in the field of degradable films, can solve the problems of low recycling efficiency and cannot be completely removed, and achieve the effects of improving strength, improving biodegradability, and reducing difficulty and time.
CN108610618AInactive Publication Date: 2018-10-02杨建军
5 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
杨建军
Publication Date
2018-10-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention discloses a degradable plastic film and a preparation method thereof. The degradable plastic film is prepared from the following raw materials: 47-62 parts of thermoplastic polyurethaneresin, 10-25 parts of modified polylactic resin, 7-15 parts of polyvinyl alcohol, 7-10 parts of a plasticizer, 5-8 parts of inorganic filler, 5-8 parts of maltodextrin, 2-5 parts of chitosan oligosaccharide and 2-5 parts of lignocelluloses. The preparation method includes: adding the raw materials into a high-speed mixer for uniform mixing, then performing extrusion and granulation by a single screw extruder, and then conducting blowing molding or tape casting, thus obtaining the degradable plastic film. The degradable plastic film obtained by the invention is completely biodegradable and pollution-free, can achieve a degradation rate of 98% within 3-4 months, has the characteristics of excellent toughness, wear resistance, mechanical properties and thermoplastic processing properties, safety and environmental protection.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a film, especially a degradable film. Background technique

[0002] With the rapid development of the plastic industry, while plastics bring convenience to people's lives, they also bring environmental problems. In order to put an end to the pollution of plastics, promoting the development of the plastics industry in terms of greening, reduction, and recyclability has become an urgent problem to be solved by the whole society. Degradable plastics are currently one of the main ways for the plastics industry to solve environmental pollution. Such materials can be used for daily necessities and industrial purposes, mainly including express bags, packaging films, agricultural films, disposable plastic bags and disposable plastic tableware. Not only does the performance meet the requirements of use, but also the performance remains unchanged during the shelf life, and it can be completely degraded into environmentally harmless subs...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More