Degradable plastic film and production method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A plastic film and film-level technology, applied in the field of degradable plastic film, can solve the problems of difficult to ensure fixed conditions for plastic film degradation, poor process performance, poor physical properties and appearance of plastic film products, etc.
Inactive Publication Date: 2011-09-07
开原市升达塑料彩印厂
View PDF1 Cites 18 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the processing performance of this degradable plastic film is not good, and the physical properties and appearance of the plastic film produced are poor; in addition, the degradation of this degradable plastic film requires certain fixed conditions, and the environment after the plastic film is discarded, Either it is placed in a closed garbage disposal system, or it is exposed to the natural environment with unstable conditions. It is difficult to guarantee the fixed conditions required for the degradation of this plastic film. In most cases, these degradable plastics, whether in In the waste treatment system or in the natural environment, it cannot be degraded well due to limited conditions
In the prior art, there is no degradable plastic film that can guarantee degradation within a certain period of time in the natural environment after being discarded
Method used
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
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] The degradable plastic film comprises the following components, and the weight and number ratios of each component are respectively
[0034] Film Grade Linear Low Density Polyethylene 70
[0035] Film Grade PLA 30
[0036] Glycerin plasticizer 2
[0037] Triphenyl phosphite heat stabilizer 1
[0038] Its manufacturing method comprises the following steps:
[0039] (1) Material preparation: select film-grade linear low-density polyethylene, film-grade polylactic acid, glycerin plasticizer and triphenyl phosphite heat stabilizer as raw materials;
[0040] (2) Re-inspection: check the quality of raw materials and remove impurities;
[0041] (3) Cutting: Take the components of the degradable plastic film according to the weight ratio of the raw materials
[0042] Film Grade Linear Low Density Polyethylene 70
[0043] Film Grade PLA 30
[0044] Glycerin Plasticizer 2
[0045] Triphenyl phosphite heat stabilizer 1
[0046] (4) Mixing: Stir the raw materials of each c...
Embodiment 2
[0053] The degradable plastic film comprises the following components, and the weight and number ratios of each component are respectively
[0054] Film Grade Linear Low Density Polyethylene 60
[0055] Film Grade Polylactic Acid 40
[0056] Ethylene glycol plasticizer 4
[0057] Triphenyl phosphite heat stabilizer 1
[0058] The manufacturing method is the same as Example 1, so it is omitted.
Embodiment 3
[0060] The degradable plastic film comprises the following components, and the weight and number ratios of each component are respectively
[0061] Film Grade Linear Low Density Polyethylene 50
[0062] Film Grade Low Density Polyethylene 30
[0063] Film Grade Polylactic Acid 20
[0064] Polyethylene glycol plasticizer 3
[0065] Triphenyl phosphite heat stabilizer 1
[0066] The manufacturing method is the same as Example 1, so it is omitted.
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
PUM
Property
Measurement
Unit
melting point
aaaaa
aaaaa
Login to view more
Abstract
The invention relates to a degradable plastic film, which is characterized by comprising the following components in part by weight: 50 to 80 parts of film-grade polyethylene, 20 to 50 parts of film-grade polyactic acid, 2 to 10 parts of plasticizer and 1 part of heat stabilizer. A preparation method comprises the following steps of: preparing, rechecking, blanking, mixing, performing blow molding, inspecting, making a bag, performing quality inspection and warehousing. The degradable plastic film can be automatically decomposed at the environment temperature of higher than 55 DEG C or under the action of oxygen enrichment or microorganisms; the discarded film can be completely degraded and digested by the microorganisms in the natural world to generate carbon dioxide and water, and the polyactic acid is ideal completely degradable plastic; and degradable plastic with different degradation speeds can be prepared by blending the film-grade polyactic acid with film-grade polyethylene plastic. The degradable plastic film can be produced by the ordinary plastic film blowing machine, film-grade polyethylene particles and the film-grade polyactic acid can be uniformly mixed during production, and the degradable plastic film can be blown by the plastic film blowing machine.
Description
technical field [0001] The invention belongs to the technical field of degradable plastic films, in particular to an environment-friendly degradable plastic film and a production method thereof. Background technique [0002] As we all know, the plastic bag made of plastic film is light, thin, impermeable, strong, and low in cost. It is a good packaging material. The consumption of tape is increasing, and the discarded plastic bags after using are not easy to recycle, especially not easy to degrade, and a large amount of discarded plastic bags have become a serious problem of current environmental pollution. In order to reduce the pollution of plastic films to the environment, people have developed some degradable plastic films one after another. Degradable plastic film is a film, which consists of film-grade plastics and ingredients that can cause plastic production, such as starch, calcium carbonate, etc., but this degradable plastic film is an additive degradable plastic ...
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
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more