CN112552593A - Method for manufacturing heat-resistant plastic bottle - Google Patents
Method for manufacturing heat-resistant plastic bottle Download PDFInfo
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- CN112552593A CN112552593A CN202011447810.3A CN202011447810A CN112552593A CN 112552593 A CN112552593 A CN 112552593A CN 202011447810 A CN202011447810 A CN 202011447810A CN 112552593 A CN112552593 A CN 112552593A
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- plastic bottle
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/10—Applications used for bottles
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to a method for manufacturing a heat-resistant plastic bottle, which comprises the following steps: step one, batching; step two, feeding; step three, manufacturing an embryo; step four, molding; step five, demolding; step six, disinfection; and step seven, packaging. According to the invention, the high-temperature resistant additive is added during the batching of the plastic bottle, so that the prepared plastic bottle has good heat resistance, the softening deformation caused by the temperature rise is avoided, the application range is enlarged, the manufacturing method is simple, and the production is convenient.
Description
Technical Field
The invention relates to the technical field of plastic bottle production, in particular to a manufacturing method of a heat-resistant plastic bottle.
Background
Plastic bottles are widely used due to low use cost and good use performance, but the plastic bottles are generally made by blow molding, and the bottle bodies are thin, so that the plastic bottles are very easily influenced by temperature when in use, and are often softened and deformed when the temperature is increased to influence the use, so that a heat-resistant plastic bottle is needed, and the use range of the plastic bottle is expanded.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a method for manufacturing a heat-resistant plastic bottle.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for manufacturing a heat-resistant plastic bottle comprises the following steps:
firstly, proportioning, namely accurately weighing raw materials, coloring master batches and high-temperature-resistant additives according to a formula, and then putting the weighed raw materials, coloring master batches and high-temperature-resistant additives into a mixer for uniform mixing;
feeding, namely putting the mixed ingredients into a charging barrel of an injection blowing machine, heating the feeding barrel to melt the ingredients, and completing plasticization in the process of conveying and stirring by a screw in the charging barrel;
thirdly, manufacturing an embryo, injecting the plasticized ingredients into a mold through a screw conveyor to form a plastic bottle embryo;
step four, molding, namely moving the embryo into a mold matched with a plastic bottle to be molded, closing the mold, and then blowing the embryo and molding;
step five, demolding, namely cooling the plastic bottle mold, then cutting off the redundant part at the top of the plastic bottle, demolding, and taking out the manufactured plastic bottle;
step six, placing the plastic bottle into a disinfection cabinet for disinfection;
and step seven, packaging.
Particularly, the raw materials in the first step are as follows according to the weight portion: 60-80 parts of polypropylene, 10-15 parts of polyethylene and 20-30 parts of polyester, wherein the weight ratio of the raw materials to the coloring master batch is (30-50): 1.
particularly, the high-temperature resistant additive in the first step comprises the following components in parts by weight: 5-10 parts of nano calcium carbonate, 5-9 parts of ferric hydroxide colloid, 6-8 parts of silane coupling agent and 10-15 parts of ceramic powder.
Particularly, the mixing time of the ingredients in the mixer in the first step is 15-20 mim.
Particularly, the heating temperature of the charging barrel in the second step reaches 180 ℃ and 250 ℃, and the heating time is 25-30 mim.
In particular, the injection pressure of the plastic bottle embryo in the third step is 2-3 Mpa.
Particularly, the air blowing pressure in the fourth step is 1-1.5Mpa, the air blowing time is 2-4s, and the air blowing temperature is 80-120 ℃.
Particularly, the cooling time in the step five is 4-6s, and the cooling temperature is 10-20 ℃.
Particularly, the sterilization mode in the sixth step is ozone sterilization for 15-30min or infrared sterilization for 30-60 min.
The invention has the beneficial effects that: according to the invention, the high-temperature resistant additive is added during the batching of the plastic bottle, so that the prepared plastic bottle has good heat resistance, the softening deformation caused by the temperature rise is avoided, the application range is enlarged, the manufacturing method is simple, and the production is convenient.
Detailed Description
The invention is further illustrated by the following examples:
example 1
A method for manufacturing a heat-resistant plastic bottle comprises the following steps:
firstly, proportioning, namely accurately weighing raw materials, coloring master batches and high-temperature-resistant additives according to a formula, and then putting the weighed raw materials, coloring master batches and high-temperature-resistant additives into a mixer for uniform mixing;
feeding, namely putting the mixed ingredients into a charging barrel of an injection blowing machine, heating the feeding barrel to melt the ingredients, and completing plasticization in the process of conveying and stirring by a screw in the charging barrel;
thirdly, manufacturing an embryo, injecting the plasticized ingredients into a mold through a screw conveyor to form a plastic bottle embryo;
step four, molding, namely moving the embryo into a mold matched with a plastic bottle to be molded, closing the mold, and then blowing the embryo and molding;
step five, demolding, namely cooling the plastic bottle mold, then cutting off the redundant part at the top of the plastic bottle, demolding, and taking out the manufactured plastic bottle;
step six, placing the plastic bottle into a disinfection cabinet for disinfection;
and step seven, packaging.
Particularly, the raw materials in the first step are as follows according to the weight portion: 60 parts of polypropylene, 10 parts of polyethylene and 20 parts of polyester, wherein the weight ratio of the raw materials to the coloring master batch is 30: 1.
particularly, the high-temperature resistant additive in the first step comprises the following components in parts by weight: 5 parts of nano calcium carbonate, 5 parts of ferric hydroxide colloid, 6 parts of silane coupling agent and 10 parts of ceramic powder.
In particular, the mixing time of the ingredients in the mixer in the first step is 15 mm.
Particularly, in the second step, the heating temperature of the charging barrel reaches 180 ℃, and the heating time is 25 mim.
In particular, the injection pressure of the plastic bottle embryo in the third step is 2 Mpa.
Particularly, in the fourth step, the air blowing pressure is 1Mpa, the air blowing time is 2s, and the air blowing temperature is 80 ℃.
In particular, the cooling time in the fifth step is 4s, and the cooling temperature is 10 ℃.
In particular, the sterilization mode in the sixth step is ozone sterilization for 15 min.
Example 2
A method for manufacturing a heat-resistant plastic bottle comprises the following steps:
firstly, proportioning, namely accurately weighing raw materials, coloring master batches and high-temperature-resistant additives according to a formula, and then putting the weighed raw materials, coloring master batches and high-temperature-resistant additives into a mixer for uniform mixing;
feeding, namely putting the mixed ingredients into a charging barrel of an injection blowing machine, heating the feeding barrel to melt the ingredients, and completing plasticization in the process of conveying and stirring by a screw in the charging barrel;
thirdly, manufacturing an embryo, injecting the plasticized ingredients into a mold through a screw conveyor to form a plastic bottle embryo;
step four, molding, namely moving the embryo into a mold matched with a plastic bottle to be molded, closing the mold, and then blowing the embryo and molding;
step five, demolding, namely cooling the plastic bottle mold, then cutting off the redundant part at the top of the plastic bottle, demolding, and taking out the manufactured plastic bottle;
step six, placing the plastic bottle into a disinfection cabinet for disinfection;
and step seven, packaging.
Particularly, the raw materials in the first step are as follows according to the weight portion: 80 parts of polypropylene, 15 parts of polyethylene and 30 parts of polyester, wherein the weight ratio of the raw materials to the coloring master batch is 50: 1.
particularly, the high-temperature resistant additive in the first step comprises the following components in parts by weight: 10 parts of nano calcium carbonate, 9 parts of ferric hydroxide colloid, 8 parts of silane coupling agent and 15 parts of ceramic powder.
In particular, the mixing time of the ingredients in the mixer in the first step is 20 mim.
Particularly, in the second step, the heating temperature of the charging barrel reaches 250 ℃, and the heating time is 30 mm.
In particular, the injection pressure of the plastic bottle embryo in the third step is 3 Mpa.
Particularly, the air blowing pressure in the fourth step is 1.5Mpa, the air blowing time is 4s, and the air blowing temperature is 120 ℃.
In particular, the cooling time in the fifth step is 6s, and the cooling temperature is 20 ℃.
In particular, the sterilization mode in the sixth step is ozone sterilization for 30 min.
Example 3
A method for manufacturing a heat-resistant plastic bottle comprises the following steps:
firstly, proportioning, namely accurately weighing raw materials, coloring master batches and high-temperature-resistant additives according to a formula, and then putting the weighed raw materials, coloring master batches and high-temperature-resistant additives into a mixer for uniform mixing;
feeding, namely putting the mixed ingredients into a charging barrel of an injection blowing machine, heating the feeding barrel to melt the ingredients, and completing plasticization in the process of conveying and stirring by a screw in the charging barrel;
thirdly, manufacturing an embryo, injecting the plasticized ingredients into a mold through a screw conveyor to form a plastic bottle embryo;
step four, molding, namely moving the embryo into a mold matched with a plastic bottle to be molded, closing the mold, and then blowing the embryo and molding;
step five, demolding, namely cooling the plastic bottle mold, then cutting off the redundant part at the top of the plastic bottle, demolding, and taking out the manufactured plastic bottle;
step six, placing the plastic bottle into a disinfection cabinet for disinfection;
and step seven, packaging.
Particularly, the raw materials in the first step are as follows according to the weight portion: 70 parts of polypropylene, 13 parts of polyethylene and 25 parts of polyester, wherein the weight ratio of the raw materials to the coloring master batch is 40: 1.
particularly, the high-temperature resistant additive in the first step comprises the following components in parts by weight: 8 parts of nano calcium carbonate, 7 parts of ferric hydroxide colloid, 7 parts of silane coupling agent and 13 parts of ceramic powder.
In particular, the mixing time of the ingredients in the mixer in the first step is 17 mm.
Particularly, in the second step, the heating temperature of the charging barrel reaches 215 ℃, and the heating time is 27 mim.
In particular, the injection pressure of the plastic bottle embryo in the third step is 2.5 Mpa.
Particularly, the air blowing pressure in the fourth step is 1.3Mpa, the air blowing time is 3s, and the air blowing temperature is 100 ℃.
In particular, the cooling time in the fifth step is 5s, and the cooling temperature is 15 ℃.
Particularly, the sterilization mode in the sixth step is infrared sterilization for 30 min.
The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various modifications, which may be made by the methods and technical solutions of the invention, or may be applied to other applications without modification.
Claims (9)
1. A method for manufacturing a heat-resistant plastic bottle is characterized by comprising the following steps:
firstly, proportioning, namely accurately weighing raw materials, coloring master batches and high-temperature-resistant additives according to a formula, and then putting the weighed raw materials, coloring master batches and high-temperature-resistant additives into a mixer for uniform mixing;
feeding, namely putting the mixed ingredients into a charging barrel of an injection blowing machine, heating the feeding barrel to melt the ingredients, and completing plasticization in the process of conveying and stirring by a screw in the charging barrel;
thirdly, manufacturing an embryo, injecting the plasticized ingredients into a mold through a screw conveyor to form a plastic bottle embryo;
step four, molding, namely moving the embryo into a mold matched with a plastic bottle to be molded, closing the mold, and then blowing the embryo and molding;
step five, demolding, namely cooling the plastic bottle mold, then cutting off the redundant part at the top of the plastic bottle, demolding, and taking out the manufactured plastic bottle;
step six, placing the plastic bottle into a disinfection cabinet for disinfection;
and step seven, packaging.
2. The method for manufacturing a heat-resistant plastic bottle according to claim 1, wherein the raw materials in the first step are, by weight: 60-80 parts of polypropylene, 10-15 parts of polyethylene and 20-30 parts of polyester, wherein the weight ratio of the raw materials to the coloring master batch is (30-50): 1.
3. the method for manufacturing a heat-resistant plastic bottle according to claim 1, wherein the high-temperature-resistant additive in the first step is prepared from the following components in parts by weight: 5-10 parts of nano calcium carbonate, 5-9 parts of ferric hydroxide colloid, 6-8 parts of silane coupling agent and 10-15 parts of ceramic powder.
4. The method as claimed in claim 1, wherein the mixing time of the ingredients in the mixer in the first step is 15-20 mm.
5. The method as claimed in claim 1, wherein the heating temperature of the barrel in the second step is up to 180-250 ℃ and the heating time is 25-30 mm.
6. The method according to claim 1, wherein the injection pressure of the plastic bottle embryo in the third step is 2-3 Mpa.
7. The method as claimed in claim 1, wherein the blowing pressure is 1-1.5Mpa, the blowing time is 2-4s, and the blowing temperature is 80-120 ℃.
8. The method as claimed in claim 1, wherein the cooling time in step five is 4-6s, and the cooling temperature is 10-20 ℃.
9. The method as claimed in claim 1, wherein the sterilization mode in the sixth step is ozone sterilization for 15-30min or infrared sterilization for 30-60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447810.3A CN112552593A (en) | 2020-12-09 | 2020-12-09 | Method for manufacturing heat-resistant plastic bottle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447810.3A CN112552593A (en) | 2020-12-09 | 2020-12-09 | Method for manufacturing heat-resistant plastic bottle |
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| Publication Number | Publication Date |
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| CN112552593A true CN112552593A (en) | 2021-03-26 |
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| CN202011447810.3A Withdrawn CN112552593A (en) | 2020-12-09 | 2020-12-09 | Method for manufacturing heat-resistant plastic bottle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012012487A (en) * | 2010-06-30 | 2012-01-19 | Adeka Corp | Method of manufacturing plastic bottle |
| CN106519446A (en) * | 2016-11-16 | 2017-03-22 | 湖南金富包装有限公司 | High-temperature-resistant plastic bottle cap and production method thereof |
| CN109810347A (en) * | 2019-01-25 | 2019-05-28 | 广州赢盛塑料制品有限公司 | Plastic bottle and preparation method thereof |
| CN111216338A (en) * | 2019-12-02 | 2020-06-02 | 浙江华诺医药包装有限公司 | Processing method of medicinal plastic bottle |
-
2020
- 2020-12-09 CN CN202011447810.3A patent/CN112552593A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012012487A (en) * | 2010-06-30 | 2012-01-19 | Adeka Corp | Method of manufacturing plastic bottle |
| CN106519446A (en) * | 2016-11-16 | 2017-03-22 | 湖南金富包装有限公司 | High-temperature-resistant plastic bottle cap and production method thereof |
| CN109810347A (en) * | 2019-01-25 | 2019-05-28 | 广州赢盛塑料制品有限公司 | Plastic bottle and preparation method thereof |
| CN111216338A (en) * | 2019-12-02 | 2020-06-02 | 浙江华诺医药包装有限公司 | Processing method of medicinal plastic bottle |
Non-Patent Citations (2)
| Title |
|---|
| 杨忠久等: "《硬质塑木复合低发泡产品生产技术和基础知识》", 30 November 2018, 江西科学技术出版社 * |
| 赵立红等: "《材料成形技术基础》", 28 February 2018, 哈尔滨工程大学出版社 * |
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Application publication date: 20210326 |