CN110698716A - Preparation method and application of EPS (expandable polystyrene) foam particles for toy filling - Google Patents
Preparation method and application of EPS (expandable polystyrene) foam particles for toy filling Download PDFInfo
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- CN110698716A CN110698716A CN201911135463.8A CN201911135463A CN110698716A CN 110698716 A CN110698716 A CN 110698716A CN 201911135463 A CN201911135463 A CN 201911135463A CN 110698716 A CN110698716 A CN 110698716A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/228—Forming foamed products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use 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 aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a preparation method of EPS foam particles for filling toys, which comprises the following steps: s1, selecting 92-95 parts of styrene, 5-8 parts of foaming agent and 1-3 parts of antistatic agent according to parts by weight; s2, placing 92-95 parts of expandable styrene and 5-8 parts of foaming agent into a foaming device with the temperature of 98-130 ℃ and the pressure of 0.04-0.45MPa for pre-foaming, and keeping for 1-10min to obtain styrene pre-foaming particles; the invention also provides an application of the EPS foam particles for filling toys, wherein the EPS foam particles are used for filling toys, home textiles and artware. The EPS foam particles filled in the toy prepared by the invention have the advantages of heat preservation, moisture resistance, heat insulation, sound insulation, friction resistance, ageing resistance and corrosion resistance.
Description
Technical Field
The invention belongs to the technical field of EPS (expandable polystyrene) foam particle preparation, and particularly relates to a preparation method and application of EPS foam particles for toy filling.
Background
At present, a certain amount of foaming agent and water vapor are reserved in EPS (expandable polystyrene) foam particles after pre-foaming at home and abroad, after the EPS foam particles are discharged from a reaction kettle, the EPS foam particles are condensed into liquid, the liquid foaming agent is dissolved into the EPS, the pressure in the foam is rapidly reduced, negative pressure (vacuum state) occurs in foam holes in the EPS foam particles, and the foam holes collapse and are easy to deform. In order to keep the granules free of negative pressure, the EPS granules are usually left to stand in a silo for at least 12 hours to stabilize the cell pressure, a process known as curing.
The traditional curing process has the following disadvantages: 1. the curing effect is poor, and the negative pressure recovery rate in the foam holes is only 90 percent at most; 2. a lot of time is needed, the production period is prolonged, and the change of the production plan is not facilitated; 3. a large number of storage bins are occupied, 3 storage bins with the volume of 15 cubic meters are required to be configured for one pre-expander, and the investment cost is huge; 4. the prepared EPS foam particles have the defects of heat preservation, moisture protection, heat insulation, sound insulation, friction prevention, aging resistance and corrosion resistance.
Disclosure of Invention
Aiming at the technical problems, the invention provides a preparation method and application of EPS foam particles for toy filling, and the EPS foam particles have the advantages of high heat conductivity coefficient, good waterproof performance, high tensile strength and good application prospect.
The technical scheme adopted by the invention is as follows: a preparation method of EPS foam particles for filling toys comprises the following steps:
s1, selecting 92-95 parts of styrene, 5-8 parts of foaming agent and 1-3 parts of antistatic agent according to parts by weight;
s2, placing 92-95 parts of expandable styrene and 5-8 parts of foaming agent into a foaming device with the temperature of 98-130 ℃ and the pressure of 0.04-0.45MPa for pre-foaming, and keeping for 1-10min to obtain styrene pre-foaming particles;
s3, placing the pre-foamed particles obtained in the step S2 in a curing bin at room temperature and normal pressure for curing for 3-48 hours to cure the pre-foamed particles;
s4, fully stirring and uniformly mixing 1-3 parts of antistatic agent and cured polystyrene pre-expanded particles, then placing the mixture into a foaming device with the temperature of 110-;
and S5, packaging the EPS foam particles obtained in the step S4 by adopting a professional packaging bag.
Preferably, in step S1, 93 parts by weight of styrene, 6 parts by weight of foaming agent and 2 parts by weight of antistatic agent are selected.
Preferably, in the step S2, the foaming agent is placed in a foaming device with a temperature of 115 ℃ and a pressure of 0.28MPa for pre-foaming, and is kept for 6min to obtain styrene pre-foamed particles.
Preferably, in step S3, the pre-expanded particles are placed in a ripening chamber at room temperature and normal pressure for ripening for 24 hours.
Preferably, in step S5, 2 parts of antistatic agent and the cured polystyrene pre-expanded particles are fully stirred and mixed uniformly, and then placed into a foaming device with the temperature of 120 ℃ and the pressure of 0.25MPa for secondary foaming, and kept for 10min to obtain EPS foamed particles.
The invention also provides an application of the EPS foam particles for filling toys, wherein the EPS foam particles are used for filling toys, home textiles and artware.
The invention has the beneficial effects that:
1. the EPS filling particles are mainly used for filling toys, home textiles and artware, the particles are smooth-touch and round particles, and can efficiently play a buffering role due to unique shapes, are lighter than other packaging materials and filling materials, have good material elasticity, can be continuously and repeatedly used, can be bulk packaged or bagged according to requirements, reduce the transportation cost and reduce the trouble of using fillers;
2. the EPS filling material is a novel environment-friendly foaming material with high-strength buffering and shock resistance, is flexible, light and elastic, can absorb and disperse external impact force through bending, achieves the buffering effect, and overcomes the defects of fragility, deformation and poor resilience of other filling materials;
3. simultaneously, the EPS filling material has a series of excellent use characteristics of heat preservation, moisture prevention, heat insulation, sound insulation, friction prevention, aging resistance, corrosion resistance and the like, and the EPS filling material added with the antistatic agent has remarkable antistatic performance and is a recyclable environment-friendly material.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example 1
A preparation method of EPS foam particles for filling toys; the method comprises the following steps:
s1, selecting 92 parts of styrene, 5 parts of foaming agent and 1 part of antistatic agent according to parts by weight;
s2, placing 92 parts of expandable styrene and 5 parts of foaming agent into a foaming device with the temperature of 98 ℃ and the pressure of 0.04MPa for pre-foaming, and keeping for 1min to obtain styrene pre-foaming particles;
s3, placing the pre-foamed particles obtained in the step S2 in a curing bin at room temperature and normal pressure for curing for 3 hours;
s4, fully stirring and uniformly mixing 1 part of antistatic agent and cured polystyrene pre-expanded particles, then placing the mixture into a foaming device with the temperature of 110 ℃ and the pressure of 0.01MPa for secondary foaming, and keeping the temperature for 2min to obtain EPS foam particles;
and S5, packaging the EPS foam particles obtained in the step S4 by adopting a professional packaging bag.
Example 2
A preparation method of EPS foam particles for filling toys; the method comprises the following steps:
s1, selecting 93 parts of styrene, 6 parts of foaming agent and 2 parts of antistatic agent according to parts by weight;
s2, placing 93 parts of expandable styrene and 6 parts of foaming agent into a foaming device with the temperature of 115 ℃ and the pressure of 0.28MPa for pre-foaming, and keeping for 6min to obtain styrene pre-foaming particles;
s3, placing the pre-foamed particles obtained in the step S2 in a curing bin at room temperature and normal pressure for curing for 24 hours;
s4, fully stirring and uniformly mixing 2 parts of antistatic agent and cured polystyrene pre-expanded particles, then placing the mixture into a foaming device with the temperature of 120 ℃ and the pressure of 0.25MPa for secondary foaming, and keeping the temperature for 10min to obtain EPS foam particles;
and S5, packaging the EPS foam particles obtained in the step S4 by adopting a professional packaging bag.
Example 3
A preparation method of EPS foam particles for filling toys; the method comprises the following steps:
s1, selecting 95 parts of styrene, 8 parts of foaming agent and 3 parts of antistatic agent according to parts by weight;
s2, placing 95 parts of expandable styrene and 8 parts of foaming agent into a foaming device with the temperature of 130 ℃ and the pressure of 0.45MPa for pre-foaming, and keeping for 1-10min to obtain styrene pre-foaming particles;
s3, placing the pre-foamed particles obtained in the step S2 in a curing bin at room temperature and normal pressure for curing for 48 hours;
s4, fully stirring and uniformly mixing 1-3 parts of antistatic agent and cured polystyrene pre-expanded particles, then placing the mixture into a foaming device with the temperature of 130 ℃ and the pressure of 0.5MPa for secondary foaming, and keeping the temperature for 18min to obtain EPS foam particles;
and S5, packaging the EPS foam particles obtained in the step S4 by adopting a professional packaging bag.
The invention also provides an application of the EPS foam particles for filling toys, wherein the EPS foam particles are used for filling toys, home textiles and artware.
The EPS filling particles prepared by the invention are mainly used for filling toys, home textiles and artware, are fine and smooth in hand feeling and round particles, can efficiently play a buffering role due to unique shapes, are lighter than other packaging materials and filling materials, have good material elasticity, can be continuously and repeatedly used, can be bulk packaged or bagged according to needs, reduce the transportation cost and reduce the trouble of using fillers; the EPS filling material is a novel environment-friendly foaming material with high-strength buffering and shock resistance, is flexible, light and elastic, can absorb and disperse external impact force through bending, achieves the buffering effect, and overcomes the defects of fragility, deformation and poor resilience of other filling materials; simultaneously, the EPS filling material has a series of excellent use characteristics of heat preservation, moisture prevention, heat insulation, sound insulation, friction prevention, aging resistance, corrosion resistance and the like, and the EPS filling material added with the antistatic agent has remarkable antistatic performance and is a recyclable environment-friendly material.
In order to test the effect of the preparation method for the toy filling EPS foam particles, the preparation method for the toy filling EPS foam particles produced by the invention and the common toy filling foam particles on the market are used as experimental group materials, 100 parts of the materials are selected for use, and the materials are randomly and evenly divided into two groups for carrying out the following experiments.
| Use this scheme bubble grain | Buffer effect | Thermal insulation performance | Moisture resistance | Heat insulation performance | Anti-friction performance | Anti-aging performance | Corrosion resistance |
| Example 1 | Good wine | Good wine | Difference (D) | Good wine | Good wine | Superior food | Difference (D) |
| Example 2 | Superior food | Good wine | Superior food | Superior food | Good wine | Good wine | Superior food |
| Example 3 | Good wine | Superior food | Difference (D) | Good wine | Good wine | Difference (D) | Good wine |
| Ordinary foam particle | Good wine | Good wine | Good wine | Difference (D) | Good wine | Good wine | Good wine |
According to the experimental data, the heat preservation, the moisture resistance, the heat insulation, the sound insulation, the anti-friction, the anti-aging and the corrosion resistance of the toy filling foam particles reach the remarkable level, and the preparation method for the toy filling EPS foam particles, which is disclosed by the embodiment 3, has the advantages of low heat conductivity coefficient, good waterproof performance, effective anti-friction and good application prospect.
Although the 5 embodiments of the present invention have been described in detail, the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. A preparation method of EPS foam particles for filling toys is characterized by comprising the following steps:
s1, selecting 92-95 parts of styrene, 5-8 parts of foaming agent and 1-3 parts of antistatic agent according to parts by weight;
s2, placing 92-95 parts of expandable styrene and 5-8 parts of foaming agent into a foaming device with the temperature of 98-130 ℃ and the pressure of 0.04-0.45MPa for pre-foaming, and keeping for 1-10min to obtain styrene pre-foaming particles;
s3, placing the pre-foamed particles obtained in the step S2 in a curing bin at room temperature and normal pressure for curing for 3-48 hours to cure the pre-foamed particles;
s4, fully stirring and uniformly mixing 1-3 parts of antistatic agent and cured polystyrene pre-expanded particles, then placing the mixture into a foaming device with the temperature of 110-;
and S5, packaging the EPS foam particles obtained in the step S4 by adopting a professional packaging bag.
2. The method of claim 1, wherein 93 parts by weight of styrene, 6 parts by weight of foaming agent and 2 parts by weight of antistatic agent are selected in step S1.
3. The method of claim 1, wherein the foaming agent is pre-foamed in a foaming device with a temperature of 115 ℃ and a pressure of 0.28MPa for 6min to obtain styrene pre-foamed particles in step S2.
4. The method of claim 1, wherein the pre-expanded beads are aged in an aging chamber for 24 hours at room temperature and atmospheric pressure in step S3.
5. The method of claim 1, wherein in step S5, 2 parts of antistatic agent and cured polystyrene pre-expanded particles are mixed thoroughly and uniformly, and then placed into a foaming device with a temperature of 120 ℃ and a pressure of 0.25MPa for secondary foaming, and kept for 10min to obtain EPS foam particles.
6. The application of the EPS filling particles for filling toys is characterized in that the EPS filling particles are used for filling toys, home textiles and artware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911135463.8A CN110698716A (en) | 2019-11-19 | 2019-11-19 | Preparation method and application of EPS (expandable polystyrene) foam particles for toy filling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911135463.8A CN110698716A (en) | 2019-11-19 | 2019-11-19 | Preparation method and application of EPS (expandable polystyrene) foam particles for toy filling |
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| Publication Number | Publication Date |
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| CN110698716A true CN110698716A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911135463.8A Withdrawn CN110698716A (en) | 2019-11-19 | 2019-11-19 | Preparation method and application of EPS (expandable polystyrene) foam particles for toy filling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483105A (en) * | 2020-04-23 | 2020-08-04 | 合肥荣丰包装制品有限公司 | EPS foam material forming device and process |
| CN114957872A (en) * | 2022-05-16 | 2022-08-30 | 彭秋凤 | Stressed particle filler and preparation method and application thereof |
-
2019
- 2019-11-19 CN CN201911135463.8A patent/CN110698716A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483105A (en) * | 2020-04-23 | 2020-08-04 | 合肥荣丰包装制品有限公司 | EPS foam material forming device and process |
| CN111483105B (en) * | 2020-04-23 | 2021-09-24 | 合肥荣丰包装制品有限公司 | EPS foam material forming device and process |
| CN114957872A (en) * | 2022-05-16 | 2022-08-30 | 彭秋凤 | Stressed particle filler and preparation method and application thereof |
| CN114957872B (en) * | 2022-05-16 | 2024-05-14 | 彭秋凤 | Stressed particle filler and preparation method and application thereof |
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Application publication date: 20200117 |