CN110760171A - Environment-friendly degradable plastic cup and processing technology thereof - Google Patents
Environment-friendly degradable plastic cup and processing technology thereof Download PDFInfo
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- CN110760171A CN110760171A CN201910733101.2A CN201910733101A CN110760171A CN 110760171 A CN110760171 A CN 110760171A CN 201910733101 A CN201910733101 A CN 201910733101A CN 110760171 A CN110760171 A CN 110760171A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses an environment-friendly degradable plastic cup and a processing technology thereof, wherein the plastic cup comprises the following components of 2.0-5.0% of PP (polypropylene), 2.0-5.0% of PE (polyethylene), 2.0-5.0% of PVC (polyvinyl chloride), 2.0-5.0% of PS (polystyrene), 18.0-22.0% of PCL (polycaprolactone), 18.0-22.0% of PVA (polyvinyl alcohol), 18.0-22.0% of PLA (polylactic acid), 2.0-6.0% of light calcium carbonate, 14.0-20.0% of starch, 4.0-10.0% of photosensitizer and 0.10-0.30% of defoaming agent. The environment-friendly degradable plastic cup and the processing technology thereof reduce the component proportion of the original components of PE, PVC, PP and PS, then add the degradable raw materials of PCL, PVA and PLA, blend a certain amount of light calcium carbonate, blend a certain amount of photosensitizer and starch, improve the degradability of the device again, and add a proper amount of defoaming agent, prevent the device from generating bubbles in the manufacturing process to cause the device to be scrapped, and improve the success rate of the product.
Description
Technical Field
The invention relates to the technical field of plastic cup processing, in particular to an environment-friendly degradable plastic cup and a processing technology thereof.
Background
As the biggest developing country in China, as science and technology fall behind, the industrialized development is slow, the environmental awareness at the early stage is thin, so the environmental pollution, especially the 'white pollution' brought by non-degradable plastic products, one yellow brand, is highlighted to people, the well-known foamed plastic snack box is deeply popular to people due to convenience, but tourist scenic spots, rivers and lakes along the railway are deeply harmed, according to investigation, non-degradable plastic floaters at the upper reaches of the Yangtze river flow to the Guzhou dam to cause a large amount of siltation, as much as hundreds of tons every day, rivers in each city are seriously polluted by the plastic floaters, the plastic cups are containers which are used in large amount, and the traditional plastic cups are basically prepared by blending high polymers such as PE, PVC, PP and PS, and the like through extrusion molding, blowing and the like, however, PE, PVC, PP and PS are mixed with the high polymer, and the like, The pollution of the plastic cup is also aggravated due to the fact that high polymers such as PP and PS cannot be degraded, but the plastic cup is indispensable in life due to the influence of the factors such as convenience in use, high quality and low price and the like, so that the environment cannot be polluted by the plastic cup in order to normally use the plastic cup, and the problem needs to be solved by an environment-friendly degradable plastic cup and a processing technology thereof.
Disclosure of Invention
The invention aims to provide an environment-friendly degradable plastic cup and a processing technology thereof, and aims to solve the problem that the traditional plastic cup proposed in the background technology is basically prepared by blending high polymers such as PE, PVC, PP and PS, extruding, molding, blowing and the like, but the high polymers such as PE, PVC, PP and PS cannot be degraded to cause environmental pollution.
In order to achieve the purpose, the invention provides the following technical scheme:
an environment-friendly degradable plastic cup and a processing technology thereof, wherein the plastic cup comprises the following components:
2.0-5.0% of PP (polypropylene), 2.0-5.0% of PE (polyethylene), 2.0-5.0% of PVC
(polyvinyl chloride), 2.0-5.0% of PS (polystyrene), 18.0-22.0% of PCL (polycaprolactone), 18.0-22.0% of PVA (polyvinyl alcohol), 18.0-22.0% of PLA (polylactic acid), 2.0-6.0% of light calcium carbonate, 14.0-20.0% of starch, 4.0-10.0% of photosensitizer and 0.10-0.30% of defoaming agent.
The processing technology of the plastic cup comprises the following specific processes:
step A, screening all the components, and then weighing the screened components in proportion;
step B, then putting the proportioned and weighed raw materials into a high-speed stirrer, stirring and mixing, heating the interior of the high-speed stirrer in the stirring process, heating to a required temperature, and uniformly and fully mixing the components under the action of corresponding rotating speed to obtain a mixed material;
step C, putting the mixed material with a certain temperature into a cooling machine for cooling, and obtaining the treated mixed material after cooling to the required temperature;
step D, putting the cooled mixed material into a conical double-screw extruder, and extruding in a melt form to obtain a semi-molten plastic pipe blank;
step E, putting the obtained semi-molten plastic pipe blank into a mold, and immediately introducing compressed air into the pipe blank to expand the pipe blank so that the outer wall of the plastic pipe blank is tightly attached to the inner wall of the mold, wherein the mold is kept at the required temperature in the process;
f, immediately stopping heating the die, cooling the plastic pipe blank which is subjected to the inflation treatment and is tightly attached to the inner wall of the die, opening the upper die after cooling for a period of time, taking out the cup-shaped semi-finished product, and placing the semi-finished product in the air for natural cooling;
step G: and finally, cutting off redundant rim charge and rim burrs of the completely cooled semi-finished plastic cup, wherein in the cutting process, water is added to the semi-finished plastic cup for humidifying, and the finished plastic cup can be obtained after the operation is finished.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the component ratio of PE, PVC, PP and PS which are original components is reduced, then the degradable raw materials of PCL, PVA and PLA are added, and a certain amount of light calcium carbonate is doped, so that the heat resistance, wear resistance, dimensional stability, toughening, reinforcing, rigidity and other effects of the device can be improved, the cost of the device is reduced to a certain extent, finally a certain amount of photosensitizer and starch are doped, the degradability of the device is improved again, a proper amount of defoaming agent is added, the device is prevented from being scrapped due to bubbles generated in the manufacturing process, and the success rate of products is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a technical scheme that: an environment-friendly degradable plastic cup and a processing technology thereof, wherein the plastic cup comprises the following components:
2.0 to 5.0 percent of PP (polypropylene), 2.0 to 5.0 percent of PE (polyethylene), 2.0 to 5.0 percent of PVC (polyvinyl chloride), 2.0 to 5.0 percent of PS (polystyrene), 18.0 to 22.0 percent of PCL (polycaprolactone), 18.0 to 22.0 percent of PVA (polyvinyl alcohol), 18.0 to 22.0 percent of PLA (polylactic acid), 2.0 to 6.0 percent of light calcium carbonate, 14.0 to 20.0 percent of starch, 4.0 to 10.0 percent of photosensitizer and 0.10 to 0.30 percent of defoaming agent.
The processing technology of the plastic cup comprises the following specific processes:
step A, screening all the components, and then weighing the screened components in proportion;
step B, then putting the proportioned and weighed raw materials into a high-speed stirrer, stirring and mixing, heating the interior of the high-speed stirrer in the stirring process, heating to a required temperature, and uniformly and fully mixing the components under the action of corresponding rotating speed to obtain a mixed material;
step C, putting the mixed material with a certain temperature into a cooling machine for cooling, and obtaining the treated mixed material after cooling to the required temperature;
step D, putting the cooled mixed material into a conical double-screw extruder, and extruding in a melt form to obtain a semi-molten plastic pipe blank;
step E, putting the obtained semi-molten plastic pipe blank into a mold, and immediately introducing compressed air into the pipe blank to expand the pipe blank so that the outer wall of the plastic pipe blank is tightly attached to the inner wall of the mold, wherein the mold is kept at the required temperature in the process;
f, immediately stopping heating the die, cooling the plastic pipe blank which is subjected to the inflation treatment and is tightly attached to the inner wall of the die, opening the upper die after cooling for a period of time, taking out the cup-shaped semi-finished product, and placing the semi-finished product in the air for natural cooling;
step G: and finally, cutting off redundant rim charge and rim burrs of the completely cooled semi-finished plastic cup, wherein in the cutting process, water is added to the semi-finished plastic cup for humidifying, and the finished plastic cup can be obtained after the operation is finished.
Example 1, an environmentally friendly degradable plastic cup, which comprises the following ingredients:
2.0% PP (polypropylene), 2.0% PE (polyethylene), 2.0% PVC (polyvinyl chloride), 2.0% PS (polystyrene), 22.0% PCL (polycaprolactone), 22.0% PVA (polyvinyl alcohol), 22.0% PLA (polylactic acid), 6.0% precipitated calcium carbonate, 20.0% starch, 10.0% photosensitizer and 0.30% defoamer.
Example 2, an environmentally friendly degradable plastic cup, which comprises the following ingredients:
5.0% PP (polypropylene), 5.0% PE (polyethylene), 5.0% PVC (polyvinyl chloride), 5.0% PS (polystyrene), 18.0% PCL (polycaprolactone), 18.0% PVA (polyvinyl alcohol), 18.0% PLA (polylactic acid), 2.0% precipitated calcium carbonate, 14.0% starch, 4.0% photosensitizer and 0.10% defoamer.
Example 3, an environmentally friendly degradable plastic cup, comprising the following ingredients:
4.0% PP (polypropylene), 4.0% PE (polyethylene), 4.0% PVC (polyvinyl chloride), 4.0% PS (polystyrene), 20.0% PCL (polycaprolactone), 20.0% PVA (polyvinyl alcohol), 20.0% PLA (polylactic acid), 3.0% precipitated calcium carbonate, 15.0% starch, 5.0% photosensitizer and 0.20% defoamer.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. An environment-friendly degradable plastic cup and a processing technology thereof are characterized in that the plastic cup is composed of the following components:
2.0 to 5.0 percent of PP (polypropylene), 2.0 to 5.0 percent of PE (polyethylene), 2.0 to 5.0 percent of PVC (polyvinyl chloride), 2.0 to 5.0 percent of PS (polystyrene), 18.0 to 22.0 percent of PCL (polycaprolactone), 18.0 to 22.0 percent of PVA (polyvinyl alcohol), 18.0 to 22.0 percent of PLA (polylactic acid), 2.0 to 6.0 percent of light calcium carbonate, 14.0 to 20.0 percent of starch, 4.0 to 10.0 percent of photosensitizer and 0.10 to 0.30 percent of defoaming agent.
2. The processing technology of the plastic cup according to claim 1, which is characterized by comprising the following specific steps:
step A, screening all the components, and then weighing the screened components in proportion;
b, then putting the proportioned and weighed raw materials into a high-speed stirrer, stirring and mixing, heating the interior of the high-speed stirrer in the stirring process, heating to a required temperature, and uniformly and fully mixing the components under the action of corresponding rotating speed to obtain a mixed material;
step C, putting the mixed material with a certain temperature into a cooling machine for cooling, and obtaining the treated mixed material after cooling to the required temperature;
step D, putting the cooled mixed material into a conical double-screw extruder, and extruding in a melt form to obtain a semi-molten plastic pipe blank;
step E, then placing the obtained semi-molten plastic pipe blank into a mold, immediately introducing compressed air into the pipe blank to expand the pipe blank so that the outer wall of the plastic pipe blank is tightly attached to the inner wall of the mold, and in the process, ensuring that the mold is at the required temperature;
f, immediately stopping heating the die, cooling the plastic pipe blank which is subjected to the inflation treatment and is tightly attached to the inner wall of the die, opening the upper die after cooling for a period of time, taking out the cup-shaped semi-finished product, and placing the semi-finished product in the air for natural cooling;
step G: and finally, cutting off redundant rim charge and rim burrs of the completely cooled semi-finished plastic cup, wherein in the cutting process, water is added to the semi-finished plastic cup for humidifying, and the finished plastic cup can be obtained after the operation is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733101.2A CN110760171A (en) | 2019-08-09 | 2019-08-09 | Environment-friendly degradable plastic cup and processing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733101.2A CN110760171A (en) | 2019-08-09 | 2019-08-09 | Environment-friendly degradable plastic cup and processing technology thereof |
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| Publication Number | Publication Date |
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| CN110760171A true CN110760171A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910733101.2A Pending CN110760171A (en) | 2019-08-09 | 2019-08-09 | Environment-friendly degradable plastic cup and processing technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115011052A (en) * | 2022-04-30 | 2022-09-06 | 冯艳梅 | Modified packaging material |
Citations (5)
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|---|---|---|---|---|
| CN1560132A (en) * | 2004-02-23 | 2005-01-05 | 陈铭通 | Biosic degrazing plastic without containing PE, PP, PS, PVC four components |
| CN107459796A (en) * | 2017-09-26 | 2017-12-12 | 安徽金星包装有限公司 | A kind of plastic cup and its processing method |
| CN108912437A (en) * | 2018-04-25 | 2018-11-30 | 重庆嘉良塑胶制品有限责任公司 | A kind of environment-friendly degradable plastics |
| CN109486140A (en) * | 2018-12-05 | 2019-03-19 | 嘉兴市竹林塑料泡沫有限公司 | A kind of decomposable preservative film of environmental protection and preparation method thereof |
| CN109776877A (en) * | 2019-01-11 | 2019-05-21 | 安徽鼎正包装材料有限公司 | Degradable translucent package bottle and its processing technology |
-
2019
- 2019-08-09 CN CN201910733101.2A patent/CN110760171A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560132A (en) * | 2004-02-23 | 2005-01-05 | 陈铭通 | Biosic degrazing plastic without containing PE, PP, PS, PVC four components |
| CN107459796A (en) * | 2017-09-26 | 2017-12-12 | 安徽金星包装有限公司 | A kind of plastic cup and its processing method |
| CN108912437A (en) * | 2018-04-25 | 2018-11-30 | 重庆嘉良塑胶制品有限责任公司 | A kind of environment-friendly degradable plastics |
| CN109486140A (en) * | 2018-12-05 | 2019-03-19 | 嘉兴市竹林塑料泡沫有限公司 | A kind of decomposable preservative film of environmental protection and preparation method thereof |
| CN109776877A (en) * | 2019-01-11 | 2019-05-21 | 安徽鼎正包装材料有限公司 | Degradable translucent package bottle and its processing technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115011052A (en) * | 2022-04-30 | 2022-09-06 | 冯艳梅 | Modified packaging material |
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Application publication date: 20200207 |
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