CN116080110A - Preparation process of elastic pad - Google Patents
Preparation process of elastic pad Download PDFInfo
- Publication number
- CN116080110A CN116080110A CN202211715551.7A CN202211715551A CN116080110A CN 116080110 A CN116080110 A CN 116080110A CN 202211715551 A CN202211715551 A CN 202211715551A CN 116080110 A CN116080110 A CN 116080110A
- Authority
- CN
- China
- Prior art keywords
- foaming
- glue
- foam particles
- elastic pad
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 59
- 238000005187 foaming Methods 0.000 claims abstract description 46
- 239000006260 foam Substances 0.000 claims abstract description 44
- 239000003292 glue Substances 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000011265 semifinished product Substances 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000002791 soaking Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 21
- 239000004014 plasticizer Substances 0.000 claims description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000004088 foaming agent Substances 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 9
- 238000011049 filling Methods 0.000 abstract description 4
- 239000006261 foam material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 6
- 229920005830 Polyurethane Foam Polymers 0.000 description 5
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 5
- 241000482268 Zea mays subsp. mays Species 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000006084 composite stabilizer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- BJAJDJDODCWPNS-UHFFFAOYSA-N dotp Chemical group O=C1N2CCOC2=NC2=C1SC=C2 BJAJDJDODCWPNS-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B29D7/00—Producing flat articles, e.g. films or sheets
-
- 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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- 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
- C08J2327/00—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 a halogen; Derivatives of such polymers
- C08J2327/02—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- 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
Abstract
The application discloses a preparation process of an elastic pad, which comprises the following steps: s1, glue configuration: preparing glue; s2, mixing: adding foam particles into the glue obtained in the step S1, and uniformly stirring; s3, in-mold molding: placing the foam particles mixed with the glue into a mould for molding to obtain a semi-finished product; s4, slurry preparation: preparing foaming slurry; s5, soaking: soaking the semi-finished product obtained in the step S3 in the foaming slurry obtained in the step S4; s6, foaming: foaming the semi-finished product soaked in the foaming slurry to obtain the elastic cushion. According to the preparation process of the elastic cushion, the foam material is used for filling gaps among foam particles, so that the rebound resilience of the elastic cushion is kept, and meanwhile, the strength of the elastic cushion is improved.
Description
Technical Field
The invention relates to the field of foaming pads, in particular to a preparation process of an elastic pad.
Background
Along with the development of technology, the technology for manufacturing the popcorn shoe pad is more and more mature, and the technology adopted in the existing production of the popcorn shoe material is a foaming technology, namely, the materials are made into particles, and then the particles are subjected to steam foaming molding in a mold. The surface of the popcorn shoe material is textured, so that the popcorn shoe material is difficult to clean, the binding force among foam particles is poor, and the popcorn shoe material is easy to crack.
Disclosure of Invention
The invention aims to provide a preparation process of an elastic pad with low cost and high production efficiency, which solves the problems that the foaming pad produced by the traditional process has peculiar smell and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the application discloses a preparation process of an elastic pad,
the method comprises the following steps:
s1, glue configuration: mixing PVC powder, a plasticizer and a stabilizer to prepare glue;
s2, mixing: adding foam particles into the glue obtained in the step S1, and uniformly stirring;
s3, in-mold molding: placing the foam particles mixed with the glue into a mould for molding to obtain a semi-finished product;
s4, slurry preparation: mixing PVC powder, calcium carbonate, a plasticizer and a foaming agent to prepare foaming slurry;
s5, soaking: soaking the semi-finished product obtained in the step S3 in the foaming slurry obtained in the step S4;
s6, foaming: foaming the semi-finished product soaked in the foaming slurry to obtain the elastic cushion.
Further, in the preparation process of the elastic pad, the weight portion ratio of the PVC powder, the plasticizer and the stabilizer in the step S1 is: 50-55% of PVC powder, 40-45% of plasticizer and 0.5-2% of stabilizer.
Further, in the above process for preparing the elastic pad, the weight of the foam particles is 1 to 2 times of the weight of the glue.
Further, in the above process for preparing an elastic pad, the foam particles are one or more of PP particles, PU particles, PE particles and PO particles.
Further, in the above process for preparing the elastic pad, the molding temperature in the mold is controlled to be 110-150 ℃.
Further, in the process for preparing the elastic pad, in the step S4, the weight portion ratio of the PVC powder, the calcium carbonate, the plasticizer and the foaming agent is: 40-45% of PVC powder, 20-25% of calcium carbonate, 30-35% of plasticizer and 1-5% of foaming agent.
Further, in the above process for producing an elastic pad, the foaming temperature is controlled to 170 to 190 ℃.
Compared with the prior art, the preparation process of the elastic pad fills the gaps among foam particles by using the foaming material, so that the elastic pad is convenient to clean, the elastic performance of the elastic pad is kept high, meanwhile, the strength of the elastic pad is improved, in addition, the connectivity among the foam particles is enhanced, and the adverse conditions such as cracking and the like are avoided.
Detailed Description
The invention is further illustrated by the following examples: the invention will be better understood from the following examples. However, it will be readily understood by those skilled in the art that the specific material ratios, process conditions and results thereof described in the examples are illustrative of the present invention and should not be construed as limiting the invention described in detail in the claims.
Example 1
A process for preparing an elastic pad, comprising the steps of:
s1, glue configuration: the weight portion ratio is as follows: 50-55% of PVC powder, 40-45% of plasticizer and 0.5-2% of stabilizer, and uniformly mixing to obtain glue;
s2, mixing: adding PU foam particles with the weight which is 2 times of that of the glue into the glue obtained in the step S1, uniformly stirring, and coating the glue on the surfaces of the foam particles;
s3, in-mold molding: placing the foam particles mixed with the glue into a mold, molding at the temperature of 10-150 ℃, solidifying the glue on the outer layers of the foam particles, and mutually fixing the positions among the foam particles to obtain a semi-finished product with gaps;
s4, slurry preparation: the weight portion ratio is as follows: 40-45% of PVC powder, 20-25% of calcium carbonate, 30-35% of plasticizer and 1-5% of foaming agent, and uniformly mixing to obtain glue, thus obtaining foaming slurry;
s5, soaking: soaking the semi-finished product obtained in the step S3 in the foaming slurry obtained in the step S4, wherein the foaming slurry enters into gaps among foam particles;
s6, foaming: foaming the semi-finished product soaked in the foaming slurry at 170-190 ℃ to obtain the elastic pad, and filling gaps among foam particles after foaming the slurry to form the elastic pad with a smoother surface.
Wherein the PVC powder is one or more of PVC resin, PVC emulsion powder and PVC copolymer resin, the plasticizer is DOTP, the stabilizer is powder calcium zinc composite stabilizer and the foaming agent is water.
And performing performance test on the prepared elastic pad to obtain the elastic pad with the rebound height exceeding 12cm and the hardness of 45C, wherein the rebound performance basically remains, and meanwhile, the strength of the elastic pad is improved, and the cracking risk is reduced.
Example 2
A process for preparing an elastic pad, comprising the steps of:
s1, glue configuration: the weight portion ratio is as follows: 50-55% of PVC powder, 40-45% of plasticizer and 0.5-2% of stabilizer, and uniformly mixing to obtain glue;
s2, mixing: the weight ratio of the PU foam particles to the PE foam particles is 1:1, adding the glue obtained in the step S1, stirring uniformly, and coating the glue on the surfaces of the foam particles, wherein the use amount of the glue is 1/2 of the mixed weight of the PU foam particles and the PE foam particles;
s3, in-mold molding: placing the foam particles mixed with the glue into a mold, molding at the temperature of 10-150 ℃, solidifying the glue on the outer layers of the foam particles, and mutually fixing the positions among the foam particles to obtain a semi-finished product with gaps;
s4, slurry preparation: the weight portion ratio is as follows: 40-45% of PVC powder, 20-25% of calcium carbonate, 30-35% of plasticizer and 1-5% of foaming agent, and uniformly mixing to obtain glue, thus obtaining foaming slurry;
s5, soaking: soaking the semi-finished product obtained in the step S3 in the foaming slurry obtained in the step S4, wherein the foaming slurry enters into gaps among foam particles;
s6, foaming: foaming the semi-finished product soaked in the foaming slurry at 170-190 ℃ to obtain the elastic pad, and filling gaps among foam particles after foaming the slurry to form the elastic pad with a smoother surface.
The elastic cushion has the characteristics of PU foam particles and PE foam particles, and performance test is carried out on the prepared elastic cushion to obtain the elastic cushion with the rebound height exceeding 12.5cm and the hardness of 40C, so that the elastic cushion basically keeps the rebound performance of the elastic cushion, and meanwhile, the strength of the elastic cushion is improved, and the cracking risk is reduced.
Example 3
A process for preparing an elastic pad, comprising the steps of:
s1, glue configuration: the weight portion ratio is as follows: 50-55% of PVC powder, 40-45% of plasticizer and 0.5-2% of stabilizer, and uniformly mixing to obtain glue;
s2, mixing: PP (polypropylene) foam particles, PU (polyurethane) foam particles, PE (polyethylene) foam particles and PO (polyolefin copolymer) foam particles in a weight ratio of 1:1:1:1, mixing the materials in a proportion to obtain mixed foam particles, adding the glue obtained in the step S1, stirring uniformly, and coating the glue on the surfaces of the foam particles, wherein the use amount of the glue is 1/2 of the weight of the mixed foam particles;
s3, in-mold molding: placing the foam particles mixed with the glue into a mold, molding at the temperature of 10-150 ℃, solidifying the glue on the outer layers of the foam particles, and mutually fixing the positions among the foam particles to obtain a semi-finished product with gaps;
s4, slurry preparation: the weight portion ratio is as follows: 40-45% of PVC powder, 20-25% of calcium carbonate, 30-35% of plasticizer and 1-5% of foaming agent, and uniformly mixing to obtain glue, thus obtaining foaming slurry;
s5, soaking: soaking the semi-finished product obtained in the step S3 in the foaming slurry obtained in the step S4, wherein the foaming slurry enters into gaps among foam particles;
s6, foaming: foaming the semi-finished product soaked in the foaming slurry at 170-190 ℃ to obtain the elastic pad, and filling gaps among foam particles after foaming the slurry to form the elastic pad with a smoother surface.
The foam particles are combined not through self foaming and extrusion, but through the combination of foaming materials, the mixing of various different foam particles can be realized, so that the elastic cushion with various material characteristics is obtained, and the foaming materials have pore structures and lighter dead weight, so that the lightweight design of the elastic cushion is facilitated.
In summary, the preparation process of the elastic pad fills the gaps among the foam particles by using the foaming material, so that the cleaning is convenient, the rebound performance of the elastic pad is kept, meanwhile, the strength of the elastic pad is improved, in addition, the connectivity among the foam particles is enhanced, and the adverse conditions such as cracking and the like are avoided.
It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to the scheme according to the present invention are shown in the embodiments, and other details not greatly related to the present invention are omitted.
Finally, it is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (7)
1. The preparation process of the elastic cushion is characterized by comprising the following steps of:
s1, glue configuration: mixing PVC powder, a plasticizer and a stabilizer to prepare glue;
s2, mixing: adding foam particles into the glue obtained in the step S1, and uniformly stirring;
s3, in-mold molding: placing the foam particles mixed with the glue into a mould for molding to obtain a semi-finished product;
s4, slurry preparation: mixing PVC powder, calcium carbonate, a plasticizer and a foaming agent to prepare foaming slurry;
s5, soaking: soaking the semi-finished product obtained in the step S3 in the foaming slurry obtained in the step S4;
s6, foaming: foaming the semi-finished product soaked in the foaming slurry to obtain the elastic cushion.
2. The process for preparing an elastic pad according to claim 1, wherein: the PVC powder, the plasticizer and the stabilizer in the step S1 are prepared from the following components in parts by weight: 50-55% of PVC powder, 40-45% of plasticizer and 0.5-2% of stabilizer.
3. The process for preparing an elastic pad according to claim 1, wherein: the weight of the foam particles is 1-2 times of the weight of the glue.
4. The process for preparing an elastic pad according to claim 1, wherein: the foam particles are one or more of PP particles, PU particles, PE particles and PO particles.
5. The process for preparing an elastic pad according to claim 1, wherein: the molding temperature in the die is controlled between 110 and 150 ℃.
6. The process for preparing an elastic pad according to claim 1, wherein: the PVC powder, the calcium carbonate, the plasticizer and the foaming agent in the step S4 are mixed according to the weight parts: 40-45% of PVC powder, 20-25% of calcium carbonate, 30-35% of plasticizer and 1-5% of foaming agent.
7. The process for preparing an elastic pad according to claim 1, wherein: the foaming temperature is controlled between 170 and 190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211715551.7A CN116080110A (en) | 2022-12-29 | 2022-12-29 | Preparation process of elastic pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211715551.7A CN116080110A (en) | 2022-12-29 | 2022-12-29 | Preparation process of elastic pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116080110A true CN116080110A (en) | 2023-05-09 |
Family
ID=86205665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211715551.7A Pending CN116080110A (en) | 2022-12-29 | 2022-12-29 | Preparation process of elastic pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116080110A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1136244A1 (en) * | 2000-03-22 | 2001-09-26 | Cheng-Hsian Chi | Method for manufacturing shoes with foamed soles |
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| CN115322475A (en) * | 2022-09-14 | 2022-11-11 | 福州友星生物科技有限公司 | Application process of foaming material for foaming slippers and sports midsoles |
| CN115418095A (en) * | 2022-07-27 | 2022-12-02 | 晋江立成祥机械科技有限公司 | Improved popcorn shoe material forming process |
-
2022
- 2022-12-29 CN CN202211715551.7A patent/CN116080110A/en active Pending
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| EP1136244A1 (en) * | 2000-03-22 | 2001-09-26 | Cheng-Hsian Chi | Method for manufacturing shoes with foamed soles |
| CN106113364A (en) * | 2016-06-27 | 2016-11-16 | 宁波博瀚工艺品有限公司 | A kind of preparation method using the fatigue resistant pad reclaiming rubber pange granule |
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| US20190248088A1 (en) * | 2018-02-09 | 2019-08-15 | Junfeng Lin | Secondary moulding process for preparing high resilience materials using e-tpu particles |
| TW202003196A (en) * | 2018-05-25 | 2020-01-16 | 加久企業股份有限公司 | Composite elastic shoe material manufacturing process and finished product thereof achieving better durability for long-term wearing |
| CN109367091A (en) * | 2018-09-30 | 2019-02-22 | 沈丹 | A kind of manufacture craft and healthy shoe of sole |
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