Plastic film production process

A plastic film and production process technology, applied in the field of plastic and rubber production technology, can solve the problems of whether the equipment technology can meet the requirements, the production conditions are not clear, the effect cannot be guaranteed, etc. Grinding and toughness enhancement effect

Inactive Publication Date: 2017-07-07
TIANJIN KAIXUAN PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic film is a common daily necessities for people nowadays. Plastic film has the advantages of good transparency, good moisture resistance, excellent heat resistance, convenient use, and low price. It is widely used in various industries, but the plastic film currently on the market is mainly based on Polyethylene plastic film is mainly used, which brings serious pollution to the environment. It is also called "white pollution" because of its refractory property, and it will release harmful gas itself, which poses a threat to people's health. The invention discloses a The production process of plastic film, which uses biodegradable resin as the main raw material, mixes processing aids, biodegradation aids, dispersion aids, and photosensitizers in a certain proportion, and processes them into plastic films under certain conditions. The film can be degraded by microorganisms, and the degradation speed is faster under the condition of light, which eliminates the environmental pollution caused by plastic film, but its production conditions are not clear, whether the equipment technology can meet the requirements is unclear, and whether the production can achieve the expected effect is uncertain ensure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of plastic film production technique of the present embodiment is characterized in that, its process step is as follows:

[0019] (1) Raw material screening: plastic granules are screened through 80 mesh sieves, the plastic granules are polylactic acid granules, the size of polylactic acid plastic granules is moderate, and increasing the contact area is conducive to the melting of the granules in the next step, and the selection of polylactic acid materials, Can be 100% biodegradable and reduce environmental pollution;

[0020] (2) Melting: Add the target particles screened in step (1) into the reactor, the temperature is controlled at 170° C., and the target particles are melted into a molten state under stirring;

[0021] (3) Modification: Add the modified material to the molten liquid in step (2), and mix evenly under the condition of vacuum stirring. The modified material is a mixture of magnesium aluminum hydrotalcite, ammonium polyphosphate, and cobalt powd...

Embodiment 2

[0027] A kind of plastic film production technique of the present embodiment is characterized in that, its process step is as follows:

[0028] (1) Raw material screening: plastic particles are screened through a 150-mesh sieve, and the plastic particles are polylactic acid particles. The size of the polylactic acid plastic particles is moderate, and increasing the contact area is conducive to the melting of the particles in the next step, and the selection of polylactic acid materials, Can be 100% biodegradable and reduce environmental pollution;

[0029] (2) Melting: Add the target particles screened in step (1) into the reactor, the temperature is controlled at 170° C., and the target particles are melted into a molten state under stirring;

[0030] (3) Modification: Add the modified material to the molten liquid in step (2), and mix evenly under the condition of vacuum stirring. The modified material is a mixture of magnesium aluminum hydrotalcite, ammonium polyphosphate, ...

Embodiment 3

[0036] A kind of plastic film production technique of the present embodiment is characterized in that, its process step is as follows:

[0037] (1) Raw material screening: plastic particles are screened through a 200-mesh sieve, and the plastic particles are polylactic acid particles. The size of the polylactic acid plastic particles is moderate, and increasing the contact area is conducive to the melting of the particles in the next step, and the selection of the polylactic acid material, Can be 100% biodegradable and reduce environmental pollution;

[0038] (2) Melting: Add the target particles screened in step (1) into the reactor, the temperature is controlled at 170° C., and the target particles are melted into a molten state under stirring;

[0039] (3) Modification: Add the modified material to the molten liquid in step (2), and mix evenly under the condition of vacuum stirring. The modified material is a mixture of magnesium aluminum hydrotalcite, ammonium polyphosphat...

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PUM

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Abstract

The invention relates to a plastic and rubber production process, in particular to a plastic film production process. The plastic film production process is characterized by comprising the following technical steps that (1) raw materials are screened, specifically, plastic particles are screened with a screen of 20-200 meshes, and the plastic particles are polylactic acid particles; (2) melting is carried out, specifically, the target particles obtained after screening in the step (1) are added into a reactor, the temperature is controlled to be 170-190 DEG C, and the target particles are melted to be in a molten state under the stirring condition; (3) modification is carried out, specifically, a modified material is added into the molten liquid in the step (2) and evenly mixed with the molten liquid under the vacuum stirring condition, and the modified material is a mixture of magnesium aluminum hydrotalcite, ammonium polyphosphate and cobalt powder with the mixing ratio being 3:2:2; (4) extrusion casting is carried out, specifically, the mixed molten liquid in the step (3) is extruded by a T-shaped port film casting machine to form a molten film; and (5) cooling is carried out, specifically, the molten film extruded in the step (4) is tightly attached to a cooling roller to be cooled.

Description

technical field [0001] The production process of plastic rubber that the present invention relates to, particularly relates to a kind of plastic film production process. Background technique [0002] Plastic film is a common daily necessities for people nowadays. Plastic film has the advantages of good transparency, good moisture resistance, excellent heat resistance, convenient use, and low price. It is widely used in various industries, but the plastic film currently on the market is mainly based on Polyethylene plastic film is mainly used, which brings serious pollution to the environment. It is also called "white pollution" because of its refractory property, and it will release harmful gas itself, which poses a threat to people's health. The invention discloses a The production process of plastic film, which uses biodegradable resin as the main raw material, mixes processing aids, biodegradation aids, dispersion aids, and photosensitizers in a certain proportion, and pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/88B29C47/92B29C59/10B29B7/88B29C48/92
CPCB29B7/88B29C48/10B29C48/914B29C48/92B29C59/10B29C2948/92152B29K2305/00
Inventor 郝永强
Owner TIANJIN KAIXUAN PLASTIC PROD
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