CN110885487A - Preparation method of biodegradable foamed sole - Google Patents
Preparation method of biodegradable foamed sole Download PDFInfo
- Publication number
- CN110885487A CN110885487A CN201911031217.8A CN201911031217A CN110885487A CN 110885487 A CN110885487 A CN 110885487A CN 201911031217 A CN201911031217 A CN 201911031217A CN 110885487 A CN110885487 A CN 110885487A
- Authority
- CN
- China
- Prior art keywords
- eva
- starch
- biodegradable
- biodegradable foamed
- banburying
- 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
Classifications
-
- 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
- C08J9/06—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 by a chemical blowing agent
- C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- 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
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/02—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to polysaccharides
-
- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- 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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention belongs to the technical field of organic high molecular compounds, and particularly relates to a preparation method of a biodegradable foamed sole, which is prepared from the following raw materials in parts by weight: recovering the EVA film, the EVA, the starch grafted EVA, the maleic anhydride grafted POE, the foaming agent AC, the crosslinking agent BIBP, the zinc stearate, the stearic acid and the inorganic antibacterial powder, banburying, milling, granulating and performing injection molding once again to obtain the biodegradable foamed sole containing the starch grafted EVA; the biodegradable foamed sole prepared by the invention solves the problem of incompatibility between the starch hydrophilic surface and EVA in the prior art, increases the bonding force of the blending interface of the starch and the EVA, reduces the interface gap, further improves the comprehensive performance of the blend, improves the performance of the sole material, has biodegradability and can relieve the environmental problem caused by white pollution.
Description
Technical Field
The invention belongs to the technical field of organic high molecular compounds, and particularly relates to a preparation method of a biodegradable foamed sole.
Background
In life, because of the characteristics of light weight, high elasticity, low cost and the like, EVA has a very important position in the shoe material industry.
The existing biodegradable foamed sole adopts: adding starch, EVA, an elastomer, an inorganic filler, other auxiliaries, a starch initiator ammonium persulfate, polyolefin and polyolefin elastomer initiator BPO, a foaming agent and a crosslinking agent into an internal mixer, mixing to obtain a plasticized composite material of starch grafted polyolefin and a polyolefin elastomer, then mixing and pulling a sheet by using an open mill, and finally foaming by using a flat vulcanizing machine to obtain the composite foamed shoe material of the starch dry-method grafted polyolefin and the polyolefin elastomer.
However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:
the starch and other components are directly blended by a dry method, and due to incompatibility between the hydrophilic surface of the starch and EVA, the interface bonding force of two phases of the blend is weak, so that the phase separation phenomenon can occur when the starch and the EVA are blended, and further, the reaction time is too short, the starch grafting rate is low, and the blending effect is poor.
Disclosure of Invention
The embodiment of the application provides a preparation method of biodegradable foamed sole, solves the problem of incompatibility between starch hydrophilic surface and EVA in the prior art, increases the bonding force of the blending interface of starch and EVA, reduces the interface gap, further improves the comprehensive performance of the blend, improves the performance of sole material, has biodegradability, and can relieve the environmental problem caused by white pollution.
The embodiment of the application provides a preparation method of a biodegradable foamed sole, which specifically comprises the following steps:
(a) crushing the waste EVA material to obtain a crushed material;
(b) 75 parts of crushed materials, 3 parts of mineral oil and 5 parts of EVA7870S 5 are subjected to banburying and open milling and then are calendered into a recycled EVA film with the thickness of 0.01mm-0.05 mm;
(c) preparing biodegradable material rice, wherein the biodegradable material rice is prepared from the following components in parts by weight:
firstly, mixing the raw materials except the crosslinking agent BIBP and the foaming agent AC, banburying, adjusting the banburying temperature to 88-93 ℃, keeping for 4 minutes and then stirring; when the banburying temperature is increased to 97 ℃, turning materials for the second time; when the banburying temperature is increased to 103 ℃, turning for the third time, and adding a crosslinking agent BIBP and a foaming agent AC; when the banburying temperature is increased to 109 ℃, turning materials for the fourth time; carrying out fifth material turning when the banburying temperature is raised to 115 ℃, carrying out banburying for 1 minute, and finally carrying out material pouring, open milling and granulation to obtain biodegradable material rice;
(d) adding the biodegradable material into a machine, automatically sucking the material, and performing one-time injection molding at the gun temperature of 90-108 ℃, the mold temperature of 175-180 ℃ and the time of 170-200 seconds to obtain the foamed sole.
Further, the preparation method of the starch grafted EVA in the step (c) is that the starch is dissolved in water, heated to 93 ℃, gelatinized for 35min, then cooled to 55 ℃, added with ammonium persulfate initiator, added with EVA emulsion, heated to 85 ℃, reacted for 3-4 hours, added with absolute ethyl alcohol for precipitation, filtered and dried to obtain the starch grafted EVA.
Wherein, starch grafting EVA with starch grafting rate of 28% is preferred, and the preparation method comprises the following steps: dissolving 28g of corn starch in water, heating to 93 ℃, gelatinizing for 35min, cooling to 55 ℃, adding 1.2g of ammonium persulfate initiator, adding 131g of EVA emulsion (with the solid content of 55% (mass fraction), the VA content in EVA of 85% (mass fraction) and the viscosity of 4000 +/-500 cP), heating to 85 ℃, reacting for 3.6 hours, slowly adding absolute ethyl alcohol for precipitation, standing for 6 hours at room temperature, filtering and drying to obtain the starch grafted EVA with the starch grafting rate of 28%.
Further, the starch grafting proportion is 25-38%, namely, starch is grafted to EVA to obtain a product of starch grafted EVA, and the starch content of the starch grafted EVA is 25-38%.
Further, the waste EVA materials in the step (a) comprise scrap heads, defective products, waste products and leftover materials generated in the process of producing EVA shoe soles.
Furthermore, the broken material in the step (a) is strip-shaped broken material with the thickness of 1.3mm-3mm and the width of 2mm-5 mm.
Further, the thickness of the recovered EVA film in the step (a) is 0.01mm to 0.02 mm.
Further, in the step (c), the maleic anhydride-grafted POE is a product in which the maleic anhydride grafting ratio is 1.3%, and the maleic anhydride-grafted POE is a product in which the content of maleic anhydride is 1.3%.
Further, the biodegradable rice is cake-shaped, the thickness is 1.5mm-4mm, and the diameter is 4mm-8 mm.
Further, the waste EVA materials are crushed by a crusher, the crusher is of a double-roller semi-open type, the distance between a front roller and a rear roller is 1mm-4mm, the speed ratio of the front roller to the rear roller is 1:1-2, and the roller temperature is 0-50 ℃.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. the starch grafted EVA is adopted, so that the interfacial adhesion of the starch and the EVA blend can be enhanced, and the interfacial gap is reduced, so that the comprehensive performance of the blend is improved, the phase separation generated in the blending of the starch and the EVA is avoided, meanwhile, the starch grafted EVA is environment-friendly and biodegradable, and the sole prepared by the method is easy to decompose and metabolize by enzymes in various microorganisms or animals and plants in the nature, is a typical biodegradable polymer material, and the residues exist in dispersed small particles of powder, so that the problem of environmental pollution caused by waste shoes is greatly relieved.
2. The invention takes the recycled EVA film and the starch grafted EVA as main systems, utilizes the EVA to adjust foaming and crosslinking performances, utilizes the terminal carboxyl of the maleic anhydride grafted POE and the terminal hydroxyl of the starch grafted EVA to easily generate chemical reaction, enhances the binding force, and obtains the biodegradable foamed sole which has the characteristics of light weight, high elasticity, low cost and the like.
3. According to the invention, the recycled EVA film is obtained by crushing, banburying and rolling the scrap heads, defective products, waste products and leftover materials in the production process of the EVA sole by a crusher according to weight, so that solid insoluble substances such as sand, metal, glass and the like can be well removed, the high-value recycling of EVA waste is realized, and the waste materials generated in the production process of the EVA sole are effectively reduced. Meanwhile, the experimental data of the embodiment and the comparative example show that the performance of the recycled EVA film is obviously better than that of the EVA recycled powder, and compared with the commercially available EVA sole material, the recycled EVA film has the performance close to or even better than that of the commercially available EVA sole material, so that the high-value recycling of EVA is realized, the EVA utilization rate is improved, the raw material cost is reduced, and the recycled EVA film is more environment-friendly.
Detailed Description
The invention will now be further illustrated with reference to specific examples.
The following are a summary of the raw material compositions of the examples and comparative examples, resulting in table 1:
TABLE 1 summary of the raw material compositions of the examples and comparative examples
Example 1:
in this embodiment, the biodegradable foamed shoe sole comprises the following steps:
step 1: preparing a recycled EVA film, and crushing a stub bar, a defective product, a waste product and a leftover material generated in the production process of an EVA sole by a crusher; then 75 parts of the crushed material, 3 parts of mineral oil and 5 parts of EVA7870S are banburied in an internal mixer, then are milled, and finally are rolled into a recycled EVA film with the thickness of 0.01mm to 0.05 mm;
step 2: the biodegradable rice containing the starch grafted EVA is prepared from the following raw materials in parts by weight:
firstly, mixing the raw materials except the crosslinking agent BIBP and the foaming agent AC, banburying, adjusting the banburying temperature to 88-93 ℃, keeping for 4 minutes and then stirring; when the banburying temperature is increased to 97 ℃, turning materials for the second time; when the banburying temperature is increased to 103 ℃, turning for the third time, and adding a crosslinking agent BIBP and a foaming agent AC; when the banburying temperature is increased to 109 ℃, turning materials for the fourth time; after the banburying temperature is raised to 115 ℃, turning materials for the fifth time, banburying for 1 minute, and finally pouring, opening and granulating to obtain biodegradable material rice containing starch grafted EVA;
and step 3: adding biodegradable material rice containing starch grafted EVA into a material barrel of an EVA injection machine, automatically sucking the material, and performing one-time injection molding, wherein the temperatures of a first section, a second section and a third section of an injection gun are respectively 95 ℃, 99 ℃, 103 ℃, 176 ℃ and 190 seconds, so as to obtain the biodegradable foamed sole containing the starch grafted EVA.
The biodegradable foamed sole prepared by the method has the density of 0.21g/cm3Hardness 58C, dimensional shrinkage 1%, and rebound resilience 52%.
Example 2:
in this example, the preparation method of the biodegradable foamed shoe sole is basically the same as that in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
In step 3: the mold temperature was 180 ℃ for 170 seconds.
The biodegradable foamed sole prepared by the method has the density of 0.2g/cm3Hardness 61C, dimensional shrinkage 0.6%, and rebound resilience 49%.
Example 3:
in this example, the preparation method of the biodegradable foamed shoe sole is basically the same as that in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
In step 3: the mold temperature was 175 ℃ for 200 seconds.
The biodegradable foamed sole prepared by the method has the density of 0.22g/cm3Hardness 63C, dimensional shrinkage 1.9%, and rebound resilience 50%.
Example 4:
in this example, the preparation method of the biodegradable foamed shoe sole is basically the same as that in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
The biodegradable foamed sole prepared by the method has the density of 0.19g/cm3Hardness 60C, dimensional shrinkage 1.2%, and rebound resilience 54%.
Comparative example a:
in this comparative example, the biodegradable foamed shoe sole was prepared in the same manner as in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
The biodegradable foamed sole prepared by the method has the density of 0.2g/cm3Hardness 60C, dimensional shrinkage 2.9%, and rebound resilience 43%.
Comparative example B:
in this comparative example, the biodegradable foamed shoe sole was prepared in the same manner as in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
The biodegradable foamed sole prepared by the method has the density of 0.18g/cm3Hardness 62C, dimensional shrinkage 0.5%, and rebound resilience 56%.
Comparative example C:
in this comparative example, the biodegradable foamed shoe sole was prepared in the same manner as in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
The biodegradable foamed sole prepared by the method has the density of 0.2g/cm3Hardness 56C, dimensional shrinkage 1.4%, and rebound resilience 47%.
Comparative example D:
in this comparative example, the biodegradable foamed shoe sole was prepared in the same manner as in example 1, except that:
in step 2: the raw materials varied in composition (see table 1 for details).
The biodegradable foamed sole prepared by the method has the density of 0.2g/cm3Hardness 60C, dimensional shrinkage 1.6% and rebound resilience 48%.
The data of examples 1-4 and comparative examples A/B/C/D were collated to obtain the following Table 2 (note: hardness was measured by GS-701N hardness tester, dimensional shrinkage was measured at 50 degrees for 4 hours, and resilience was measured by GT-7042-RE type impact resilience tester):
table 2: comparison table of performance parameters of biodegradable foamed soles prepared in examples 1-4 and comparative examples A/B/C/D.
By combining the technical schemes in the embodiments and the comparative examples, the application has at least the following technical effects or advantages:
in the embodiments 1 to 4, the recycled EVA film, the starch grafted EVA1250 mesh and the maleic anhydride grafted POE are adopted, so that the recycled EVA film is fully utilized, the degradation effect can be achieved, and the comprehensive performances are excellent.
Example 1 compared with comparative example a, although not using the recycled EVA film, has density and hardness similar to those of example 1, but has significantly poorer resilience and larger shrinkage, because the recycled EVA film is a crosslinked product, has a larger molecular weight, can be partially crosslinked during molding, and can play a role in supporting the skeleton; compared with the comparative example B, the comparative example B is not added with starch grafted EVA of 1250 meshes, has smaller density (namely, increased foaming ratio) and larger hardness, and has better rebound performance and size shrinkage, which shows that the starch grafted EVA has direct influence on the foaming ratio, the hardness and the rebound of the material; compared with the comparative example C, the comparative example C is not added with the maleic anhydride grafted POE, the density and the hardness of the comparative example C are close to those of the comparative example 1, the size shrinkage rate is slightly poor, and the resilience performance is poorer; comparative example D, which replaces the recycled EVA film with 1250 mesh EVA reclaimed powder, has a density and hardness similar to those of example 1, but poorer resilience and dimensional shrinkage, because the EVA reclaimed powder is crushed and then ground, has non-uniform particles, has poorer interfacial compatibility with EVA materials, and thus has poorer overall properties, compared to comparative example D.
In conclusion, the foamed sole prepared according to the invention solves the problem of incompatibility between the hydrophilic surface of the starch and the EVA in the prior art on the basis of ensuring good comprehensive properties such as light weight, wear resistance, skid resistance, stable size and the like, increases the bonding force of the blending interface of the starch and the EVA, reduces the interface gap, further improves the comprehensive properties of the blend, improves the performance of the sole material, has biodegradability and can relieve the environmental problem caused by white pollution.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (9)
1. A preparation method of biodegradable foamed shoe soles is characterized by comprising the following steps:
(a) crushing the waste EVA material to obtain a crushed material;
(b) 75 parts of crushed materials, 3 parts of mineral oil and 5 parts of EVA7870S 5 are subjected to banburying and open milling and then are calendered into a recycled EVA film with the thickness of 0.01mm-0.05 mm;
(c) preparing biodegradable material rice, wherein the biodegradable material rice is prepared from the following components in parts by weight:
firstly, mixing the raw materials except the crosslinking agent BIBP and the foaming agent AC, banburying, adjusting banburying temperature to 88-93 ℃, keeping for 4 minutes and then stirring; when the banburying temperature is increased to 97 ℃, turning materials for the second time; when the banburying temperature is increased to 103 ℃, turning for the third time, and adding the crosslinking agent BIBP and the foaming agent AC; when the banburying temperature is increased to 109 ℃, turning materials for the fourth time; carrying out fifth material turning when the banburying temperature is raised to 115 ℃, carrying out banburying for 1 minute, and finally carrying out material pouring, open milling and granulation to obtain biodegradable material rice;
(d) and adding the biodegradable material into a machine, automatically sucking the material, and performing one-time injection molding at the gun temperature of 90-108 ℃, the mold temperature of 175-180 ℃ and the time of 170-200 seconds to obtain the foamed sole.
2. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein the starch grafted EVA in step (c) is prepared by dissolving starch in water, heating to 93 ℃, gelatinizing for 35min, cooling to 55 ℃, adding ammonium persulfate initiator, adding EVA emulsion, heating to 85 ℃, reacting for 3-4 hours, adding absolute ethanol for precipitation, filtering, and drying to obtain starch grafted EVA.
3. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein the starch graft ratio is 25-38%.
4. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein the waste EVA material in the step (a) comprises scrap, defective products, waste products and leftover materials generated in the production of EVA shoe sole.
5. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein the crushed material in step (a) is strip-shaped crushed material with thickness of 1.3mm-3mm and width of 2mm-5 mm.
6. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein the thickness of said recycled EVA film in the step (a) is 0.01mm-0.02 mm.
7. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein in the step (c), the grafting ratio of maleic anhydride to POE is 1.3%.
8. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein said biodegradable material is cake-shaped, having a thickness of 1.5mm to 4mm and a diameter of 4mm to 8 mm.
9. The method for preparing biodegradable foamed shoe sole according to claim 1, wherein the waste EVA material is crushed by a crusher, the crusher is of a double-roller semi-open type, the distance between the front roller and the rear roller is 1mm-4mm, the speed ratio of the front roller to the rear roller is 1:1-2, and the temperature of the rollers is 0 ℃ to 50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031217.8A CN110885487A (en) | 2019-10-28 | 2019-10-28 | Preparation method of biodegradable foamed sole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031217.8A CN110885487A (en) | 2019-10-28 | 2019-10-28 | Preparation method of biodegradable foamed sole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110885487A true CN110885487A (en) | 2020-03-17 |
Family
ID=69746612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031217.8A Pending CN110885487A (en) | 2019-10-28 | 2019-10-28 | Preparation method of biodegradable foamed sole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110885487A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113767003A (en) * | 2020-03-30 | 2021-12-07 | 株式会社永昌Eco | Insole waste recovery method, shoe foam and crushed insole waste |
| CN113773572A (en) * | 2021-08-22 | 2021-12-10 | 茂泰(福建)鞋材有限公司 | Preparation method of modified biological calcium carbonate EVA environment-friendly sole |
| CN114437520A (en) * | 2022-02-24 | 2022-05-06 | 茂泰(福建)鞋材有限公司 | Double-color foamed sole and preparation process thereof |
| WO2023134171A1 (en) * | 2022-01-17 | 2023-07-20 | 茂泰(福建)鞋材有限公司 | Environmentally friendly foaming material based on eva waste materials, and treatment method for eva waste materials |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012981A (en) * | 2012-12-13 | 2013-04-03 | 福建永悦科技有限公司 | Material for rubber forming shoes and preparation method of material |
| CN104817762A (en) * | 2015-05-04 | 2015-08-05 | 泰亚鞋业股份有限公司 | Environment-friendly EVA foaming shoe material and manufacturing method thereof |
| CN106279860A (en) * | 2015-05-12 | 2017-01-04 | 宝峰时尚国际控股有限公司 | A kind of foamed shoe sole and preparation method thereof and shoes |
| CN106360877A (en) * | 2016-11-17 | 2017-02-01 | 无锡市长安曙光手套厂 | Starch and ethylene-vinyl acetate composite foaming agent shoe sole material |
| CN106633335A (en) * | 2016-09-27 | 2017-05-10 | 茂泰(福建)鞋材有限公司 | Degradable foaming sole containing polycarbonate alloy and preparation method of degradable foaming sole |
| CN107674292A (en) * | 2016-08-01 | 2018-02-09 | 福建新峰二维材料科技有限公司 | A kind of preparation method of the expanded material of doped graphene |
| CN109880226A (en) * | 2019-03-13 | 2019-06-14 | 福建五持恒科技发展有限公司 | Sole graphene regeneration rubber-plastic foaming micelle and preparation method thereof |
| CN110054831A (en) * | 2019-05-08 | 2019-07-26 | 福建五持恒科技发展有限公司 | A kind of graphene regeneration EVA foamed shoe sole micelle and preparation method thereof |
| CN110144075A (en) * | 2019-06-05 | 2019-08-20 | 福建五持恒科技发展有限公司 | A kind of graphene reclaimed rubber foamed shoe sole micelle and preparation method thereof |
-
2019
- 2019-10-28 CN CN201911031217.8A patent/CN110885487A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012981A (en) * | 2012-12-13 | 2013-04-03 | 福建永悦科技有限公司 | Material for rubber forming shoes and preparation method of material |
| CN104817762A (en) * | 2015-05-04 | 2015-08-05 | 泰亚鞋业股份有限公司 | Environment-friendly EVA foaming shoe material and manufacturing method thereof |
| CN106279860A (en) * | 2015-05-12 | 2017-01-04 | 宝峰时尚国际控股有限公司 | A kind of foamed shoe sole and preparation method thereof and shoes |
| CN107674292A (en) * | 2016-08-01 | 2018-02-09 | 福建新峰二维材料科技有限公司 | A kind of preparation method of the expanded material of doped graphene |
| CN106633335A (en) * | 2016-09-27 | 2017-05-10 | 茂泰(福建)鞋材有限公司 | Degradable foaming sole containing polycarbonate alloy and preparation method of degradable foaming sole |
| CN106360877A (en) * | 2016-11-17 | 2017-02-01 | 无锡市长安曙光手套厂 | Starch and ethylene-vinyl acetate composite foaming agent shoe sole material |
| CN109880226A (en) * | 2019-03-13 | 2019-06-14 | 福建五持恒科技发展有限公司 | Sole graphene regeneration rubber-plastic foaming micelle and preparation method thereof |
| CN110054831A (en) * | 2019-05-08 | 2019-07-26 | 福建五持恒科技发展有限公司 | A kind of graphene regeneration EVA foamed shoe sole micelle and preparation method thereof |
| CN110144075A (en) * | 2019-06-05 | 2019-08-20 | 福建五持恒科技发展有限公司 | A kind of graphene reclaimed rubber foamed shoe sole micelle and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113767003A (en) * | 2020-03-30 | 2021-12-07 | 株式会社永昌Eco | Insole waste recovery method, shoe foam and crushed insole waste |
| CN113773572A (en) * | 2021-08-22 | 2021-12-10 | 茂泰(福建)鞋材有限公司 | Preparation method of modified biological calcium carbonate EVA environment-friendly sole |
| CN113773572B (en) * | 2021-08-22 | 2023-09-19 | 茂泰(福建)新材料科技有限公司 | Preparation method of modified biological calcium carbonate EVA environment-friendly sole |
| WO2023134171A1 (en) * | 2022-01-17 | 2023-07-20 | 茂泰(福建)鞋材有限公司 | Environmentally friendly foaming material based on eva waste materials, and treatment method for eva waste materials |
| CN114437520A (en) * | 2022-02-24 | 2022-05-06 | 茂泰(福建)鞋材有限公司 | Double-color foamed sole and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110885487A (en) | Preparation method of biodegradable foamed sole | |
| KR101199758B1 (en) | Termoplastic Resin Composition Having A Good Weather Resistance And Low Gloss | |
| JP5973132B2 (en) | Blend of biodegradable polymer and acrylic copolymer | |
| JP3117195B2 (en) | Method for producing wood fiber composite material having high rigidity and high heat deformation temperature characteristics | |
| CN109735076B (en) | Preparation method of high-performance bio-based/polylactic acid fully-degradable material | |
| CN110885486A (en) | Method for manufacturing foamed sole | |
| CN105219074A (en) | Isomerism crosslinking toughen and intensify reclaims nylon and preparation method thereof | |
| CN102352094A (en) | High-toughness and highly heat-resistant polylactic acid (PLA) alloy material and preparation method thereof | |
| CN102504504B (en) | High-impact-resistance heat-resistant polylactic acid alloy material and preparation method thereof | |
| CN113637299B (en) | Heat-resistant and impact-resistant polylactic acid composite material and preparation method and application thereof | |
| CN105602219A (en) | Biodegradable polylactic acid modified material | |
| CN111070493A (en) | Preparation method of environment-friendly thermoplastic rubber sole | |
| CN111763410A (en) | Biodegradable PBAT alloy with high starch content and preparation method thereof | |
| CN108384208B (en) | PET-based wood-plastic composite material and preparation method thereof | |
| CN110964339B (en) | Preparation method of bio-based composite material film with good air tightness | |
| JPH10195268A (en) | Poly(vinyl chloride) having improved low-temperature melting property and improved impact resistance | |
| CN115284703B (en) | Wide low-temperature impact-resistant bending-resistant PVC (polyvinyl chloride) foaming co-extrusion plate and preparation method thereof | |
| CN110922725A (en) | Fully biodegradable film composition, fully biodegradable film and preparation method and application thereof | |
| KR101208107B1 (en) | Manufacturing method of plastic for car interior material using biomass pellet and thereof | |
| CN106832893B (en) | A kind of isomerism recycling nylon of the crosslinking agent containing L-POSS and preparation method thereof | |
| KR20220042083A (en) | Method for preparing biodegradable polymer composition | |
| CN114211664A (en) | Preparation method of toughened thermoplastic plastic | |
| CN113087987A (en) | Modified rice hull powder/polyethylene wood-plastic composite material and preparation method thereof | |
| CN108659367B (en) | Composition for transparent washing machine cover and preparation method | |
| EP2829374A1 (en) | Plastic, for automotive interior parts, manufactured from biomass pellets, and method for manufacturing the plastic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200317 |
|
| RJ01 | Rejection of invention patent application after publication |