CN115710368A - Light and wear-resistant foamed sole with GPU (graphics processing Unit) protective layer sprayed on surface - Google Patents
Light and wear-resistant foamed sole with GPU (graphics processing Unit) protective layer sprayed on surface Download PDFInfo
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Abstract
A light and wear-resistant foamed sole with a GPU (graphics processing unit) protective layer sprayed on the surface comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 0.3-2.5mm; the paint consists of the following raw materials: polyurethane paint, a curing agent, hydroxyethyl acrylate and a diluent; the GPU liquid is formed by mixing a material A and a material B according to the volume ratio of 100-90, wherein the material A comprises the following raw materials: the preparation method comprises the steps of firstly spraying paint on the surface of a foamed sole to form patterns with different colors by limiting the preparation method of the foamed sole; and continuously spraying a GPU coating on the surface of the paint coating, so that the prepared foamed sole can realize light weight, is lighter than a common rubber sole by more than 30%, and the sprayed GPU coating completely wraps the bottom and/or the side surface of the insole body to form a protective layer of the foamed sole, so that the stress can be dispersed, the sole can be balanced, and the walking safety of a wearer can be ensured.
Description
Technical Field
The invention belongs to the field of foamed sole preparation, and particularly relates to a light wear-resistant foamed sole with a GPU (graphics processing unit) sprayed on the surface.
Background
At present, lightweight materials such as pebax and aliphatic TPU are commonly used for high-performance lightweight soles, but the lightweight materials have poor tearing performance and are easy to crack, even the soles are broken, so that wearing is affected; if the wear-resistant sheet is compounded at the bottom of the sole, the wear-resistant bottom sheet needs to be formed firstly and then compounded with the sole through glue, the production efficiency is low, the wear-resistant bottom sheet is easy to fall off, the normal use of the sole is influenced, and further improvement is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a light and wear-resistant foamed sole with a GPU (graphics processing unit) sprayed on the surface.
The invention adopts the following technical scheme:
a light wear-resistant foamed sole with a GPU (graphics processing Unit) protective layer sprayed on the surface comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 0.3-2.5mm;
the preparation method comprises the following steps:
spraying prepared paint on the bottom surface and/or the side surface of the insole body, and drying for 8-15min at the temperature of 50-70 ℃ to form paint coatings with different color patterns on the surface of the insole body;
step two, preparing GPU liquid, uniformly spraying the GPU liquid on the surface of a paint coating, and drying the paint coating at the temperature of 70-105 ℃ for 100-500s to obtain the foamed sole;
the paint is prepared from the following raw materials in parts by weight: 20-35 parts of polyurethane paint, 10-20 parts of curing agent, 8-12 parts of hydroxyethyl acrylate and 40 parts of diluent;
the GPU liquid is prepared by mixing a material A and a material B according to the volume ratio of 100-90, wherein the material A comprises the following raw materials in parts by weight: 100 parts of polyol prepolymer, 7-13 parts of chain extender, 0.5-2.3 parts of white carbon black, 0.1-0.2 part of catalyst, 0.3-1 part of hydroxyethyl acrylate and 0.005-0.01 part of photoinitiator.
Furthermore, the viscosity of the polyol prepolymer is 400-1000cp, the hydroxyl value is 45-68mKOH/g, the acid value is less than 0.5mgKOH/g, and the water content is within 1000 ppm.
Further, the polyol prepolymer at least comprises one of polyester polyol and polyether polyol.
Further, the polyester polyol is one or more of polybutylene adipate polyol, polyethylene glycol monopropylene glycol adipate, polyethylene glycol adipate, polycaprolactone polyol and polycarbonate diol.
Further, the polyether polyol is one or more of polypropylene glycol, polytetrahydrofuran glycol and tetrahydrofuran-propylene oxide copolymerized glycol.
Further, the material B is isocyanate prepolymer, and the content of isocyanate is 14-35%; the isocyanate prepolymer at least comprises one of diisocyanate modified polyester polyol prepolymer and diisocyanate modified polyether polyol prepolymer.
Furthermore, the isocyanate prepolymer is a polyester polyol prepolymer modified by diphenylmethane diisocyanate (MDI).
Further, the diluent is cyclohexanone, butyl acetate or acetone.
Further, the curing agent is an ethyl acetate solution of isocyanate, and the solid content is 34-50%.
Further, the midsole body is composed of one or more of ethylene-vinyl acetate copolymer EVA, polyurethane, block polyether amide Pebax and thermoplastic polyester elastomer TPEE.
Further, the polyurethane comprises one or more of polyurethane casting foaming, thermoplastic polyurethane foam particles and thermoplastic polyurethane foaming.
Further, the polyurethane comprises one or more of polyester polyurethane, polyether polyurethane and aliphatic polyurethane.
As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: according to the invention, by limiting the preparation method of the foaming sole, paint is sprayed on the surface of the foaming sole to form patterns with different colors; then continuously spraying a GPU coating on the surface of the paint coating, so that the prepared foamed sole can realize light weight which is more than 30% lighter than that of a common rubber sole, and the sprayed GPU coating completely wraps the bottom and/or the side surface of the insole body to form a protective layer of the foamed sole, so that the stress can be dispersed, the condition that the foamed sole cracks due to large local stress is avoided, the sole is balanced, the walking safety of a wearer is ensured, the problem that the wear resistance and the skid resistance of the foamed sole are poor is solved, the light-weighted foamed sole has high performance, and the application range is expanded; in addition, the exposed surface of the GPU coating has granular feel, certain patterns can be formed, the bottom of the GPU coating achieves the wear-resistant and anti-skid effects, and the side surface of the GPU coating can be more attractive; compared with the traditional sole which is formed firstly and then is attached by glue, the forming speed is high, the production efficiency is improved by more than 40%, the problem that high-performance soles such as pebax, aliphatic TPU and the like are broken in the prior art is effectively solved, and high-performance materials can be better and more applied to the soles;
the raw material composition of the GPU coating is specifically limited, the formula and parameters of the liquid A are particularly limited, and the reaction rate is strictly controlled by matching with a special isocyanate prepolymer, so that the GPU coating is high in forming speed, and the production efficiency is greatly improved; and the composition of the paint is further limited, and the hydroxyethyl acrylate is added, so that the paint can perform an ultraviolet curing reaction with GPU liquid, and the adhesive force of the polyurethane liquid is further enhanced.
Detailed Description
The invention is further described below by means of specific embodiments.
A light wear-resistant foamed sole with a GPU (graphics processing Unit) protective layer sprayed on the surface comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 0.3-2.5mm; specifically, the midsole body is composed of one or more of ethylene-vinyl acetate copolymer EVA, polyurethane, block polyether amide Pebax and thermoplastic polyester elastomer TPEE; further, the polyurethane comprises one or more of polyurethane casting foaming, thermoplastic polyurethane foam particles and thermoplastic polyurethane foaming; or comprises one or more of polyester polyurethane, polyether polyurethane and aliphatic polyurethane.
The paint is prepared from the following raw materials in parts by weight: 20-35 parts of polyurethane paint, 10-20 parts of curing agent, 8-12 parts of hydroxyethyl acrylate and 40 parts of diluent; specifically, the solid content of the polyurethane paint is 30-50%; the diluent is cyclohexanone, butyl acetate or acetone; the curing agent is ethyl acetate solution of isocyanate, and the solid content is 34-50%.
The GPU liquid is formed by mixing a material A and a material B according to the volume ratio of 100-90, wherein the material A comprises the following raw materials in parts by weight: 100 parts of polyol prepolymer, 7-13 parts of chain extender, 0.5-2.3 parts of white carbon black, 0.1-0.2 part of catalyst, 0.3-1 part of hydroxyethyl acrylate and 0.005-0.01 part of photoinitiator.
The viscosity of the polyol prepolymer is 400-1000cp, the hydroxyl value is 45-68mKOH/g, the acid value is less than 0.5mgKOH/g, and the water content is within 1000 ppm; specifically, the polyol prepolymer at least comprises one of polyester polyol and polyether polyol; further, the polyester polyol is one or more of polybutylene adipate polyol, polyethylene glycol monopropylene glycol adipate, polyethylene glycol adipate, polycaprolactone polyol and polycarbonate diol; the polyether polyol is one or more of polypropylene glycol, polytetrahydrofuran glycol and tetrahydrofuran-propylene oxide copolymerized glycol.
The material B is isocyanate prepolymer, and the content of isocyanate is 14-35%; the isocyanate prepolymer at least comprises one of diisocyanate modified polyester polyol prepolymer and diisocyanate modified polyether polyol prepolymer; specifically, the isocyanate prepolymer is a polyester polyol prepolymer modified by diphenylmethane diisocyanate (MDI).
The preparation method comprises the following steps:
spraying prepared paint on the bottom surface and/or the side surface of the insole body, and drying for 8-15min at the temperature of 50-70 ℃ to form paint coatings with different color patterns on the surface of the insole body;
and step two, preparing GPU liquid, uniformly spraying the GPU liquid on the surface of the paint coating, and drying the paint coating at the temperature of 70-105 ℃ for 100-500s to obtain the foamed sole.
Example 1
The light wear-resistant foamed sole with the surface sprayed with the GPU protective layer comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 0.3mm.
The paint is prepared from the following raw materials in parts by weight: 20 parts of polyurethane paint, 20 parts of curing agent, 8 parts of hydroxyethyl acrylate and 40 parts of diluent; specifically, the solid content of the polyurethane paint is 30%; the diluent is cyclohexanone; the curing agent is an ethyl acetate solution of isocyanate, and the solid content is 50%.
The GPU liquid is formed by mixing a material A and a material B according to the volume ratio of 100, wherein the material A comprises the following raw materials in parts by weight: 100 parts of polyol prepolymer, 7 parts of chain extender, 0.5 part of white carbon black, 0.1 part of catalyst, 1 part of hydroxyethyl acrylate and 0.005 part of photoinitiator.
The viscosity of the polyol prepolymer is 400cp; specifically, the polyol prepolymer is poly-butanediol adipate polyol.
The material B is isocyanate prepolymer, and the content of isocyanate is 35 percent; specifically, the isocyanate prepolymer is a polyester polyol prepolymer modified by diphenylmethane diisocyanate (MDI).
The preparation method comprises the following steps:
firstly, spraying prepared paint on the bottom surface and/or the side surface of a midsole body prepared by molding thermoplastic polyurethane foam particles, and drying at the temperature of 50 ℃ for 15min to form paint coatings with different color patterns on the surface of the midsole body;
and step two, preparing GPU liquid, uniformly spraying the GPU liquid on the surface of the paint coating, and drying the paint coating for 500s at the temperature of 70 ℃ to obtain the foamed sole.
Example 2
The light wear-resistant foamed sole with the surface sprayed with the GPU protective layer comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 2.5mm.
The paint is prepared from the following raw materials in parts by weight: 35 parts of polyurethane paint, 10 parts of curing agent, 12 parts of hydroxyethyl acrylate and 40 parts of diluent; specifically, the solid content of the polyurethane paint is 50%; the diluent is butyl acetate; the curing agent was an ethyl acetate solution of isocyanate with a solids content of 34%.
The GPU liquid is formed by mixing a material A and a material B according to the volume ratio of 100, wherein the material A comprises the following raw materials in parts by weight: 100 parts of polyol prepolymer, 13 parts of chain extender, 2.3 parts of white carbon black, 0.2 part of catalyst, 0.3 part of hydroxyethyl acrylate and 0.01 part of photoinitiator.
The viscosity of the polyol prepolymer is 1000cp; specifically, the polyol prepolymer is polytetrahydrofuran diol.
The material B is isocyanate prepolymer, and the content of isocyanate is 14 percent; specifically, the isocyanate prepolymer is a polyester polyol prepolymer modified by diphenylmethane diisocyanate (MDI).
The preparation method comprises the following steps:
firstly, spraying prepared paint on the bottom surface and/or the side surface of a foaming insole body prepared by foaming block polyether amide Pebax beads, and drying at the temperature of 70 ℃ for 8min to form paint coatings with different color patterns on the surface of the insole body;
and step two, preparing GPU liquid, uniformly spraying the GPU liquid on the surface of the paint coating, and drying for 100s at the temperature of 105 ℃ to obtain the foamed sole.
Example 3
The light wear-resistant foamed sole with the surface sprayed with the GPU protective layer comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 1.6mm.
The paint is prepared from the following raw materials in parts by weight: 28 parts of polyurethane paint, 15 parts of curing agent, 10 parts of hydroxyethyl acrylate and 40 parts of diluent; specifically, the solid content of the polyurethane paint is 40%; the diluent is acetone; the curing agent was an ethyl acetate solution of isocyanate with a solids content of 42%.
The GPU liquid is formed by mixing a material A and a material B according to the volume ratio of 100: 100 parts of polyol prepolymer, 10 parts of chain extender, 1.7 parts of white carbon black, 0.15 part of catalyst, 0.6 part of hydroxyethyl acrylate and 0.008 part of photoinitiator.
The viscosity of the polyol prepolymer is 700cp; specifically, the polyol prepolymer polyethylene glycol adipate polyol and the polypropylene glycol are prepared according to the mass ratio of 1.
The material B is isocyanate prepolymer, and the content of isocyanate is 20%; specifically, the isocyanate prepolymer is a polyester polyol prepolymer modified by diphenylmethane diisocyanate (MDI).
The preparation method comprises the following steps:
firstly, spraying prepared paint on the bottom surface and/or the side surface of a foaming insole body prepared from thermoplastic polyester elastomer TPEE, and drying at the temperature of 60 ℃ for 12min to form paint coatings with different color patterns on the surface of the insole body;
and step two, preparing GPU liquid, uniformly spraying the GPU liquid on the surface of the paint coating, and drying the paint coating for 300s at the temperature of 90 ℃ to obtain the foamed sole.
According to the invention, by limiting the preparation method of the foaming sole, paint is sprayed on the surface of the foaming sole to form patterns with different colors; then continuously spraying a GPU coating on the surface of the paint coating, so that the prepared foamed sole can realize light weight which is more than 30% lighter than that of a common rubber sole, and simultaneously, the sprayed GPU coating completely wraps the bottom and/or the side surface of the insole body to form a protective layer of the foamed sole, so that the stress can be dispersed, the condition that the foamed sole cracks due to large local stress is avoided, the sole is balanced, the walking safety of a wearer is ensured, the problem of poor wear resistance and skid resistance of the foamed sole is solved, and the light foamed sole has high performance and the application range is expanded; in addition, the thickness of the GPU coating can be controlled, so that the exposed surface of the GPU coating has granular feel, certain patterns can be formed, the bottom of the GPU coating achieves the wear-resistant and anti-skid effects, and the side surface of the GPU coating can be more attractive; compared with the traditional sole which is formed firstly and then is attached by glue, the forming speed is high, the production efficiency is improved by more than 40%, the problem that high-performance soles such as pebax, aliphatic TPU and the like are broken in the prior art is effectively solved, and high-performance materials can be better and more applied to the soles.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, and the equivalent variations and modifications made in the claims and the description of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a surface spraying GPU protective layer, light wear-resisting foaming sole which characterized in that: the shoe sole comprises a midsole body, and a paint coating and a GPU coating which are sequentially sprayed on the surface of the midsole body, wherein the thickness of the GPU protective layer is 0.3-2.5mm;
the preparation method comprises the following steps:
firstly, spraying prepared paint on the bottom surface and/or the side surface of the insole body, and then drying for 8-15min at the temperature of 50-70 ℃ to form paint coatings with different color patterns on the surface of the insole body;
step two, preparing GPU liquid, uniformly spraying the GPU liquid on the surface of a paint coating, and drying for 100-500s at the temperature of 70-105 ℃ to obtain the foamed sole;
the paint is prepared from the following raw materials in parts by weight: 20-35 parts of polyurethane paint, 10-20 parts of curing agent, 8-12 parts of hydroxyethyl acrylate and 40 parts of diluent;
the GPU liquid is formed by mixing a material A and a material B according to the volume ratio of 100-90, wherein the material A comprises the following raw materials in parts by weight: 100 parts of polyol prepolymer, 7-13 parts of chain extender, 0.5-2.3 parts of white carbon black, 0.1-0.2 part of catalyst, 0.3-1 part of hydroxyethyl acrylate and 0.005-0.01 part of photoinitiator.
2. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 1, is characterized in that: the viscosity of the polyol prepolymer is 400-1000cp, the hydroxyl value is 45-68mKOH/g, the acid value is less than 0.5mgKOH/g, and the water content is within 1000 ppm.
3. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer as claimed in claim 2, wherein the preparation method comprises the following steps: the polyol prepolymer at least comprises one of polyester polyol and polyether polyol.
4. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 3, is characterized in that: the polyester polyol is one or more of polybutylene adipate polyol, polyethylene glycol monopropylene glycol adipate, polyethylene glycol adipate, polycaprolactone polyol and polycarbonate diol.
5. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 3, characterized by comprising the following steps: the polyether polyol is one or more of polypropylene glycol, polytetrahydrofuran glycol and tetrahydrofuran-propylene oxide copolymerized glycol.
6. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 1, characterized by comprising the following steps: the material B is isocyanate prepolymer, and the content of isocyanate is 14-35%; the isocyanate prepolymer at least comprises one of diisocyanate modified polyester polyol prepolymer and diisocyanate modified polyether polyol prepolymer.
7. The preparation method of the light wear-resistant foamed sole with the GPU protection layer sprayed on the surface according to claim 6, is characterized in that: the isocyanate prepolymer is a polyester polyol prepolymer modified by diphenylmethane diisocyanate (MDI).
8. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 1, characterized by comprising the following steps: the diluent is cyclohexanone, butyl acetate or acetone.
9. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 1, is characterized in that: the curing agent is an ethyl acetate solution of isocyanate, and the solid content is 34-50%.
10. The preparation method of the light wear-resistant foamed sole with the surface sprayed with the GPU protection layer according to claim 1, characterized by comprising the following steps: the middle sole body is composed of one or more of ethylene-vinyl acetate copolymer EVA, polyurethane, block polyether amide Pebax and thermoplastic polyester elastomer TPEE.
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| CN202211143028.1A CN115710368B (en) | 2022-09-20 | 2022-09-20 | Surface spraying GPU protective layer, light wear-resisting foaming sole |
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| CN202211143028.1A CN115710368B (en) | 2022-09-20 | 2022-09-20 | Surface spraying GPU protective layer, light wear-resisting foaming sole |
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| CN115710368B CN115710368B (en) | 2023-09-19 |
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| CN114149733A (en) * | 2021-12-07 | 2022-03-08 | 黎明化工研究设计院有限责任公司 | Transparent double-component aliphatic polyurethane coating with ultrahigh hardness and preparation method thereof |
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| CN101098919A (en) * | 2004-12-23 | 2008-01-02 | Ppg工业俄亥俄公司 | Coated compressible substrates |
| US20120219803A1 (en) * | 2011-02-28 | 2012-08-30 | Momentive Performance Materials Inc. | Weatherable & Abrasion Resistant Coating Systems for Polymeric Substrates |
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Address after: No. 588, Jinxin Middle Road, Jiangtou village, Chendai Town, Jinjiang City, Quanzhou City, Fujian Province, 362000 Applicant after: Maotai (Fujian) New Material Technology Co.,Ltd. Applicant after: Shengtai (Fujian) shoe material Co.,Ltd. Address before: No. 588, Jinxin Middle Road, Jiangtou village, Chendai Town, Jinjiang City, Quanzhou City, Fujian Province, 362000 Applicant before: Maotai(Fujian) Soles Co.,Ltd. Applicant before: Shengtai (Fujian) shoe material Co.,Ltd. |
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