CN112625314A - High-resilience foamed rubber, preparation method thereof, shoe pad comprising high-resilience foamed rubber and preparation method of shoe pad - Google Patents

High-resilience foamed rubber, preparation method thereof, shoe pad comprising high-resilience foamed rubber and preparation method of shoe pad Download PDF

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Publication number
CN112625314A
CN112625314A CN202011612712.0A CN202011612712A CN112625314A CN 112625314 A CN112625314 A CN 112625314A CN 202011612712 A CN202011612712 A CN 202011612712A CN 112625314 A CN112625314 A CN 112625314A
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parts
rubber
accelerator
insole
resilience
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Chinese (zh)
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肖慧
魏旭芳
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Jihua 3515 Leather and Leather Shoe Co Ltd
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Jihua 3515 Leather and Leather Shoe Co Ltd
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Priority to CN202011612712.0A priority Critical patent/CN112625314A/en
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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
    • C08J9/04—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
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
    • 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
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • 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
    • C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
    • C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • 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
    • C08J2307/00—Characterised by the use of natural rubber
    • 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
    • C08J2411/00—Characterised by the use of homopolymers or copolymers of chloroprene
    • 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
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C08J2491/02—Vulcanised oils, e.g. factice
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/222—Magnesia, i.e. magnesium oxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof

Abstract

The invention provides high-resilience foamed rubber, a preparation method thereof, an insole comprising the high-resilience foamed rubber and a preparation method of the insole, wherein the high-resilience foamed rubber comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 10-20 parts of chloroprene rubber, 3-7 parts of active zinc oxide, 1-3 parts of magnesium oxide, 10-20 parts of stearic acid, 1-3 parts of anti-aging agent I, 1-3 parts of anti-aging agent II, 10-20 parts of white factice, 10-20 parts of carbon black, 1-3 parts of foaming agent I, 3-5 parts of foaming agent II, 5-10 parts of naphthenic oil, 0.1-0.5 part of accelerator I, 2-3 parts of accelerator II, 0.5-1 part of accelerator III and 1-3 parts of sulfur. The prepared insole is light and comfortable, has obvious damping effect and high rebound rate, the rebound rate of the insole reaches over 90 percent, and the volume density of the insole is 0.4-0.6g/cm3。

Description

High-resilience foamed rubber, preparation method thereof, shoe pad comprising high-resilience foamed rubber and preparation method of shoe pad
Technical Field
The invention relates to an insole, in particular to high-resilience foamed rubber, a preparation method thereof, an insole comprising the high-resilience foamed rubber and a preparation method of the insole.
Background
The insole is used as an important component of the shoe, is in direct contact with the foot of a human body, and the quality of the insole is directly related to the wearing comfort of the shoe. At present, insoles in the market are various in types, and the materials of the insoles mainly comprise EVA, leather, cloth, PU (polyurethane) filling and the like. Foamed EVA is comfortable and cheap, but has poor elasticity and is easy to deform, and the foamed EVA loses softness and elasticity after deformation; leather has poor air permeability and elasticity and is uncomfortable to wear, and natural leather has good air permeability but high price; the PU shoe pad has better elasticity and flexibility, but is not aging-resistant, has poor air permeability and is easy to generate foot odor. Therefore, the market is short of a shoe pad which is good in quality, low in price, good in air permeability, high in shock absorption and comfortable to wear.
Disclosure of Invention
In order to solve the problems, the invention provides the high-resilience foamed rubber, the preparation method thereof, the insole comprising the high-resilience foamed rubber and the preparation method thereof, the prepared insole is light and comfortable, the damping effect is obvious, the resilience rate is high, the resilience rate of the insole reaches more than 90 percent, and the volume density of the insole is 0.4-0.6g/cm3。
The object of the invention is achieved in the following way: the high-resilience foamed rubber comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 10-20 parts of chloroprene rubber, 3-7 parts of active zinc oxide, 1-3 parts of magnesium oxide, 10-20 parts of stearic acid, 1-3 parts of anti-aging agent I, 1-3 parts of anti-aging agent II, 10-20 parts of white factice, 10-20 parts of carbon black, 1-3 parts of foaming agent I, 3-5 parts of foaming agent II, 5-10 parts of naphthenic oil, 0.1-0.5 part of accelerator I, 2-3 parts of accelerator II, 0.5-1 part of accelerator III and 1-3 parts of sulfur.
Also can comprise 2 to 5 parts of antibacterial and deodorant powder.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the high-resilience foamed rubber comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.8-1mm for 8-12 times, cooling for 0.8-1.5 hours, adding chloroprene rubber, thinly passing for 5-8 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, carrying out internal mixing for 20-60 seconds, then sequentially adding other raw materials of the rebound foaming rubber layer except sulfur, controlling the internal mixing temperature to be 85-110 ℃, carrying out internal mixing for 200 seconds and uniformly mixing.
(3) And adding sulfur into the mixed rubber material on a flat machine, packaging after all the materials are eaten, taking out the rubber pieces, cooling, and standing for more than 12 hours to obtain the high-resilience foamed rubber.
The breathable and high-damping rubber insole comprises a breathable and damping foam rubber layer and a breathable layer above the breathable and damping foam rubber layer, wherein the breathable layer is a polyester knitted fabric, and the breathable and damping foam rubber layer is high-resilience foam rubber.
The air permeable layer is made of fiber, cotton cloth or chemical fiber cloth; the sole part and the heel part of the insole are provided with vent holes.
The breathable layer is polyester knitted fabric; the air vent holes are vertically communicated with the insole.
The preparation method of the breathable and high-damping rubber insole comprises the steps of carrying out hot refining, calendaring and cutting on the high-resilience foamed rubber into an insole shape, paving a layer of polyester knitted fabric on the upper surface of the insole-shaped rubber sheet, putting the insole-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.5-1MPa, the vulcanizing temperature is 145-160 ℃, and the vulcanizing time is 6-10 minutes, so that the breathable and high-damping rubber insole is obtained. Namely, the connection is formed between the air-permeable and shock-absorbing foam rubber layer and the polyester knitted fabric through vulcanization molding.
The invention provides a high-resilience foamed rubber, a preparation method thereof, an insole comprising the high-resilience foamed rubber and a preparation method thereof, and the breathable high-damping rubber insole which is light and comfortable and has an obvious damping effect is obtained, the resilience rate of the insole reaches over 90 percent, and the volume density of the insole is 0.4-0.6g/cm3Completely float on the water surface. The insole has good shock absorption performance and aging resistance, and is not deformed and aged after long-term wearing. The porous structure of the foam rubber is utilized, and the vent holes designed on the insole are utilized, so that the weight of the insole is reduced, the material utilization rate is improved, and meanwhile, the air permeability of the insole is further ensured. Through tests, the high-resilience foamed rubber provided by the invention is of a closed-cell structure, and has the following physical properties: the rebound resilience: not less than 90%, density: 0.40-0.60 g/cm3(ii) a Tensile strength at break: not less than 3 MPa; elongation percentage: more than or equal to 200 percent; water vapor permeability: not less than 7.5 mg/(cm 2. h); the physical performance indexes of the breathable and high-damping insole are as follows: density: 0.4-0.6g/cm3(ii) a Tensile strength at break: not less than 3 MPa; elongation percentage: more than or equal to 200 percent; the rebound resilience: more than or equal to 90 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
Drawings
FIG. 1 is a schematic view of an insole of the invention.
Fig. 2 is a schematic layer diagram of the insole of fig. 1.
Detailed Description
The high-resilience foamed rubber comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 10-20 parts of chloroprene rubber, 3-7 parts of active zinc oxide, 1-3 parts of magnesium oxide, 10-20 parts of stearic acid, 1-3 parts of anti-aging agent I, 1-3 parts of anti-aging agent II, 10-20 parts of white factice, 10-20 parts of carbon black, 1-3 parts of foaming agent I, 3-5 parts of foaming agent II, 5-10 parts of naphthenic oil, 0.1-0.5 part of accelerator I, 2-3 parts of accelerator II, 0.5-1 part of accelerator III and 1-3 parts of sulfur.
Also can comprise 2 to 5 parts of antibacterial and deodorant powder.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the high-resilience foamed rubber comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.8-1mm for 8-12 times, cooling for 0.8-1.5 hours, adding chloroprene rubber, thinly passing for 5-8 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, carrying out internal mixing for 20-60 seconds, then sequentially adding other raw materials of the rebound foaming rubber layer except sulfur, controlling the internal mixing temperature to be 85-110 ℃, carrying out internal mixing for 200 seconds and uniformly mixing.
(3) And adding sulfur into the mixed rubber material on a flat machine, packaging after all the materials are eaten, taking out the rubber pieces, cooling, and standing for more than 12 hours to obtain the high-resilience foamed rubber. Packaging is as follows: three vertical bags and five triangular bags can be made, and only five triangular bags can be made.
As shown in figures 1 and 2, the air-permeable and high-damping rubber insole comprises an air-permeable and high-damping foamed rubber layer 1 and an air-permeable layer 2 above the air-permeable and high-damping foamed rubber layer, wherein the air-permeable layer is made of polyester knitted fabric, and the air-permeable and high-damping foamed rubber layer is made of the high-resilience foamed rubber.
The high-resilience foamed rubber has a closed cell structure. Through the obturator structure, can avoid inside water gets into the shoe-pad, produce the sound, avoid water to get into the back moreover, not well discharge, influence the drying etc. of shoe-pad.
The air permeable layer is made of fiber, cotton cloth or chemical fiber cloth.
The air permeable layer is polyester knitted fabric.
The air-permeable and shock-absorbing foamed rubber layer and the polyester knitted fabric are connected through vulcanization molding.
The sole part 3 and the heel part 4 of the insole are provided with vent holes 5. The air exhaust of the insole can be facilitated.
The air vent holes are vertically communicated with the insole. The water can be prevented from entering the insole to generate sound, and the water is prevented from being discharged after entering the insole to influence the drying of the insole and the like.
The preparation method of the breathable and high-damping rubber insole comprises the steps of carrying out hot refining, calendaring and cutting on the high-resilience foamed rubber into an insole shape, paving a layer of polyester knitted fabric on the upper surface of the insole-shaped rubber sheet, putting the insole-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.5-1MPa, the vulcanizing temperature is 145-160 ℃, and the vulcanizing time is 6-10 minutes, so that the breathable and high-damping rubber insole is obtained. Namely, the connection is formed between the air-permeable and shock-absorbing foam rubber layer and the polyester knitted fabric through vulcanization molding.
The present invention is described in detail below with reference to specific embodiments, it should be noted that the embodiments are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention, and those skilled in the art can make modifications and adaptations of the present invention based on the above-mentioned disclosure.
Example 1
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 90 parts of natural rubber, 10 parts of chloroprene rubber, 5 parts of active zinc oxide, 1 part of magnesium oxide, 15 parts of stearic acid, 2 parts of an anti-aging agent I, 2 parts of an anti-aging agent II, 2.5 parts of antibacterial and deodorant powder, 15 parts of white factice, 20 parts of carbon black, 2.5 parts of a foaming agent I, 3 parts of a foaming agent II, 5 parts of naphthenic oil, 0.25 part of an accelerator I, 2.5 parts of an accelerator II, 0.5 part of an accelerator III and 1.5 parts of sulfur.
The anti-aging agent I is an anti-aging agent MB (2-thiol group benzimidazole), and the anti-aging agent II is an anti-aging agent 4010NA (N-isopropyl-N' -phenyl-p-phenylenediamine).
The foaming agent I is foaming agent AC (azodicarbonamide), and the foaming agent II is foaming agent OBSH (4, 4' -oxybis-benzenesulfonylhydrazide).
The promoter I is promoter M (2-mercaptobenzothiazole), the promoter II is promoter DM (2, 2 '-dithiodibenzothiazole), and the promoter III is promoter TMTD (N, N' -tetramethyl dithio-carbonamide).
The preparation method of the breathable high-damping rubber insole comprises the following steps:
(1) plasticating natural rubber in an open mill with the roller spacing of 1mm for 10 times, cooling for 1.5 hours, adding chloroprene rubber, thinly passing for 8 times again, and standing for 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 30 seconds, sequentially adding other raw materials of the high-resilience foamed rubber except sulfur, controlling the internal mixing temperature to be 90 ℃, and internally mixing for 200 seconds, and uniformly mixing.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating three vertical bags and five triangular bags after various materials are completely eaten, discharging, cooling, and standing for more than 12 hours to obtain high-resilience foamed rubber; the vertical package is to roll the sizing material on a machine, and the vertical package and the triangular package are matched with each other, so that the dispersion of various compounding agents in the sizing material is facilitated, and the performance of the sizing material is ensured.
(4) And (2) carrying out hot refining, calendering and cutting on the cooled high-resilience foamed rubber into a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.8MPa, the vulcanizing temperature is 155 ℃, and the vulcanizing time is 6 minutes, so that the breathable high-damping rubber shoe pad is obtained. Polyester knitted fabric 0.09m2。
Directly punching vent holes 5 which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
The raw materials used in the invention are all commercial products, and the raw materials and manufacturers are as follows: natural rubber (Xishuangbanna Jingyang rubber, Limited liability company); neoprene (Shanxi Huo parental synthetic rubber Co., Ltd.), zinc oxide (Honda chemical Co., Yongji city); magnesium oxide (Hebei magnesium science and technology Co., Ltd.), stearic acid (cis-cloning chemical and plastics Co., Ltd.); anti-aging agent RD (Bairui chemical Co., Ltd.); anti-aging agent 4010NA (Bairui chemical Co., Ltd.); antibacterial and deodorant powder (Zhejiang Fuerpu New type Material Co., Ltd.); white factice (Tongda rubber and plastic additives Co., Ltd.), carbon black N339 (Tianjin Yibo Rui chemical Co., Ltd.); foaming agent AC (Fujian province Jinlang Fine chemical Co., Ltd.); foaming agent OBSH (Fujian province Jinlang fine chemical Co., Ltd.); naphthenic oil (Hengshui xi Hao chemical Co., Ltd.), rubber accelerator M (Shijiazhuang, Jubai Guanghu chemical science Co., Ltd.); rubber accelerator DM (Shijiazhuang, Jubai Guangdong chemical science and technology Co., Ltd.); rubber accelerator TMTD (shanghai beauty works ltd); sulfur (linyi jin sulfonated chemical Co., Ltd.), polyester knitted fabric (Changle cochin knitting Co., Ltd.).
Physical properties of the high resilience foam rubber obtained in example 1:
density: 0.51 g/cm3(ii) a Tensile strength at break: not less than 3.2 MPa; elongation percentage: more than or equal to 210 percent; the rebound resilience: more than or equal to 91 percent; water vapor permeability: not less than 7.5 mg/(cm 2. h); elongation percentage: more than or equal to 210 percent.
The physical properties of the prepared insole are as follows: density: 0.51 g/cm3(ii) a Tensile strength at break: not less than 3.2 MPa; elongation percentage: more than or equal to 210 percent; the rebound resilience: more than or equal to 91 percent; water vapor permeability: not less than 7.7 mg/(cm)2.h）。
Example 2
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 95 parts of natural rubber, 5 parts of chloroprene rubber, 5 parts of active zinc oxide, 1 part of magnesium oxide, 15 parts of stearic acid, 2 parts of an anti-aging agent I, 2 parts of an anti-aging agent II, 2.5 parts of antibacterial and deodorant powder, 17 parts of white factice, 25 parts of carbon black, 2.5 parts of a foaming agent I, 3 parts of a foaming agent II, 6 parts of naphthenic oil, 0.25 part of an accelerator I, 2.5 parts of an accelerator II, 0.5 part of an accelerator III and 1.8 parts of sulfur.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the breathable high-damping rubber insole comprises the following steps:
(1) plasticating natural rubber in an open mill with the roller spacing of 1mm for 12 times, cooling for 2 hours, adding chloroprene rubber, thinly passing for 8 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 30 seconds, sequentially adding other raw materials except sulfur and high-resilience foamed rubber, controlling the internal mixing temperature at 100 ℃, and internally mixing for 180 seconds, and uniformly mixing.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating the mixed rubber material into five triangular bags after various materials are completely eaten, discharging the rubber material, cooling the rubber material, and standing the rubber material for more than 12 hours to obtain high-resilience foamed rubber;
(4) and (2) carrying out hot refining, calendering and cutting on the cooled high-resilience foamed rubber into a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.8MPa, the vulcanizing temperature is 150 ℃, and the vulcanizing time is 7 minutes, so that the breathable high-damping rubber shoe pad is obtained. Polyester knitted fabric 0.09m2。
Directly punching vent holes 5 which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
Physical properties of the high resilience foam rubber obtained in example 2:
density: 0.55 g/cm3(ii) a Tensile strength at break: not less than 3.3 MPa; elongation percentage: more than or equal to 200 percent; the rebound resilience: more than or equal to 90 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The physical properties of the prepared insole are as follows: density: 0.55 g/cm3(ii) a Tensile strength at break: not less than 3.3 MPa; elongation percentage: more than or equal to 200 percent; the rebound resilience: more than or equal to 90 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The embodiments of the present application can also be the following embodiments
Example 3
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 80 parts of natural rubber, 10 parts of chloroprene rubber, 3 parts of active zinc oxide, 1 part of magnesium oxide, 10 parts of stearic acid, 1 part of anti-aging agent I, 1 part of anti-aging agent II, 2 parts of antibacterial and deodorant powder, 10 parts of white factice, 10 parts of carbon black, 1 part of foaming agent I, 3 parts of foaming agent II, 5 parts of naphthenic oil, 0.1 part of accelerator I, 2 parts of accelerator II, 0.5 part of accelerator III and 1 part of sulfur.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the breathable and high-damping rubber insole comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.8mm for 8 times of thin passing, cooling for 0.8 hour, adding chloroprene rubber, thin passing for 5 times again, standing for 22 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 20 seconds, sequentially adding other raw materials except sulfur and high-resilience foamed rubber, controlling the internal mixing temperature to be 85 ℃, and internally mixing for 150 seconds, and uniformly mixing.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating the mixed rubber material into five triangular bags after various materials are completely eaten, discharging the mixture, cooling the mixture, and standing the mixture for 13 hours to obtain high-resilience foamed rubber;
(4) and (2) carrying out hot refining, calendering and cutting on the cooled high-resilience foamed rubber into a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.5MPa, the vulcanizing temperature is 145 ℃, and the vulcanizing time is 6 minutes, so that the breathable high-damping rubber shoe pad is obtained.
Directly punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
Physical properties of the high resilience foam rubber obtained in example 3:
density: 0.45g/cm3(ii) a Tensile strength at break: not less than 3.4 MPa; elongation percentage: more than or equal to 225 percent; the rebound resilience: more than or equal to 93 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The physical properties of the prepared insole are as follows: density: 0.45g/cm3(ii) a Tensile strength at break: not less than 3.4 MPa; elongation percentage: more than or equal to 225 percent; the rebound resilience: more than or equal to 93 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
Example 4
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 100 parts of natural rubber, 20 parts of chloroprene rubber, 7 parts of active zinc oxide, 3 parts of magnesium oxide, 20 parts of stearic acid, 3 parts of an anti-aging agent I, 3 parts of an anti-aging agent II, 5 parts of antibacterial and deodorant powder, 20 parts of white factice, 20 parts of carbon black, 3 parts of a foaming agent I, 5 parts of a foaming agent II, 10 parts of naphthenic oil, 0.5 part of an accelerator I, 3 parts of an accelerator II, 1 part of an accelerator III and 3 parts of sulfur.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the breathable and high-damping rubber insole comprises the following steps of (1) plasticating natural rubber in an open mill with the roller distance of 1mm for 12 times of thin passing, cooling for 1.5 hours, adding chloroprene rubber, thin passing for 8 times again, standing for 24 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 60 seconds, sequentially adding other raw materials except sulfur and high-resilience foamed rubber, controlling the internal mixing temperature at 110 ℃, and internally mixing for 200 seconds, and uniformly mixing.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating three vertical bags and five triangular bags after various materials are completely eaten, discharging, cooling, and standing for 15 hours to obtain high-resilience foamed rubber;
(4) and (2) carrying out hot refining, calendering and cutting on the cooled high-resilience foamed rubber into a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 1MPa, the vulcanizing temperature is 160 ℃, and the vulcanizing time is 10 minutes, so that the breathable high-damping rubber shoe pad is obtained.
Directly punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
Physical properties of the high resilience foam rubber obtained in example 4:
density: 0.40 g/cm3(ii) a Tensile strength at break: not less than 3.2 MPa; elongation percentage: more than or equal to 216 percent; the rebound resilience: more than or equal to 91 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The physical properties of the prepared insole are as follows: density: 0.40 g/cm3(ii) a Tensile strength at break: not less than 3.2 MPa; elongation percentage: more than or equal to 216 percent; the rebound resilience: more than or equal to 91 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
Example 5
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 82 parts of natural rubber, 19 parts of chloroprene rubber, 4 parts of active zinc oxide, 1.5 parts of magnesium oxide, 17 parts of stearic acid, 2.5 parts of an anti-aging agent I, 1.8 parts of an anti-aging agent II, 4.5 parts of antibacterial and deodorant powder, 12 parts of white factice, 12 parts of carbon black, 1.2 parts of a foaming agent I, 4.2 parts of a foaming agent II, 9 parts of naphthenic oil, 0.2 part of an accelerator I, 2.8 parts of an accelerator II, 0.8 part of an accelerator III and 1.5 parts of sulfur.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the breathable and high-damping rubber insole comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.9mm for 11 times, cooling for 1.2 hours, adding chloroprene rubber, thinly passing for 6 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 45 seconds, sequentially adding other raw materials of the high-resilience foamed rubber except sulfur, controlling the internal mixing temperature to be 105 ℃, and uniformly mixing for 170 seconds.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating three vertical bags and five triangular bags after various materials are completely eaten, discharging, cooling, and standing for more than 12 hours to obtain high-resilience foamed rubber;
(4) and (2) carrying out hot refining, calendering and cutting on the cooled high-resilience foamed rubber into a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.7MPa, the vulcanizing temperature is 150 ℃, and the vulcanizing time is 8 minutes, so that the breathable high-damping rubber shoe pad is obtained.
Directly punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
Physical properties of the high resilience foam rubber obtained in example 5:
density: 0.58 g/cm3(ii) a Tensile strength at break: not less than 3 MPa; elongation percentage: not less than 215%; the rebound resilience: more than or equal to 93 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The physical properties of the prepared insole are as follows: density: 0.58 g/cm3(ii) a Tensile strength at break: not less than 3 MPa; elongation percentage: not less than 215%; the rebound resilience: more than or equal to 93 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
Example 6
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 95 parts of natural rubber, 12 parts of chloroprene rubber, 3.5 parts of active zinc oxide, 2.2 parts of magnesium oxide, 11 parts of stearic acid, 1.8 parts of anti-aging agent I, 1.8 parts of anti-aging agent II, 2.6 parts of antibacterial and deodorant powder, 16 parts of white factice, 20 parts of carbon black, 2.5 parts of foaming agent I, 3.5 parts of foaming agent II, 9 parts of naphthenic oil, 0.2 part of accelerator I, 2.1 parts of accelerator II, 0.6 part of accelerator III and 2.2 parts of sulfur.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the breathable and high-damping rubber insole comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.9mm for 11 times, cooling for 1.0 hour, adding chloroprene rubber, thinly passing for 6 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 50 seconds, sequentially adding other raw materials except sulfur and high-resilience foamed rubber, controlling the internal mixing temperature at 90 ℃, and internally mixing for 180 seconds, and uniformly mixing.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating three vertical bags and five triangular bags after various materials are completely eaten, discharging, cooling, and standing for more than 12 hours to obtain high-resilience foamed rubber;
(4) and (2) carrying out hot refining, calendering and cutting on the cooled high-resilience foamed rubber into a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.6MPa, the vulcanizing temperature is 160 ℃, and the vulcanizing time is 8 minutes, so that the breathable high-damping rubber shoe pad is obtained.
Directly punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
Physical properties of the high resilience foam rubber obtained in example 6:
density: 0.52g/cm3(ii) a Tensile strength at break: not less than 3.1 MPa; elongation percentage: more than or equal to 220 percent; the rebound resilience: more than or equal to 92 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The physical properties of the prepared insole are as follows: density: 0.52g/cm3(ii) a Tensile strength at break: not less than 3.1 MPa; elongation percentage: more than or equal to 220 percent; the rebound resilience: more than or equal to 92 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
Example 7
The utility model provides a ventilative, high damping rubber shoe-pad, is including ventilative, shock attenuation foaming rubber layer and ventilative, the ventilative layer of shock attenuation foaming rubber layer top, and ventilative layer is dacron looped fabric, and ventilative, shock attenuation foaming rubber layer is high resilience foam rubber.
The high-resilience foamed rubber is prepared from the following raw materials in parts by weight: 92 parts of natural rubber, 13 parts of chloroprene rubber, 4 parts of active zinc oxide, 2 parts of magnesium oxide, 11 parts of stearic acid, 2.9 parts of an anti-aging agent I, 1.2 parts of an anti-aging agent II, 4 parts of antibacterial and deodorant powder, 16 parts of white factice, 12 parts of carbon black, 1.5 parts of a foaming agent I, 4 parts of a foaming agent II, 7 parts of naphthenic oil, 0.2 part of an accelerator I, 2 parts of an accelerator II, 1 part of an accelerator III and 2.2 parts of sulfur.
The anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
The foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
The accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
The preparation method of the breathable and high-damping rubber insole comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.9mm for 9 times of thin passing, cooling for 1.3 hours, adding chloroprene rubber, thin passing for 8 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, internally mixing for 30 seconds, sequentially adding other raw materials except sulfur and high-resilience foamed rubber, controlling the internal mixing temperature to be 95-100 ℃, and internally mixing for 160 seconds, and uniformly mixing.
(3) Adding sulfur into the mixed rubber material on a flat machine, beating three vertical bags and five triangular bags after various materials are completely eaten, discharging, cooling, and standing for more than 12 hours to obtain high-resilience foamed rubber;
(4) and (2) carrying out hot refining, calendaring and cutting on the cooled high-resilience foamed rubber to form a shoe pad shape, laying a layer of polyester knitted fabric on the upper surface of the shoe pad-shaped rubber sheet, putting the shoe pad-shaped rubber sheet and the polyester knitted fabric into a vulcanizing machine mold together for vulcanizing, wherein the vulcanizing pressure is 0.9MPa, the vulcanizing temperature is 148 ℃, and the vulcanizing time is 9 minutes, so as to obtain the breathable high-damping rubber shoe pad.
Directly punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole in the grinding tool of the vulcanizing machine, or punching vent holes which are vertically communicated with the insole on the sole part 3 and the heel part 4 of the insole at the later stage.
Physical properties of the high resilience foam rubber obtained in example 7:
density: 0.60g/cm3(ii) a Tensile strength at break: not less than 3.1 MPa; elongation percentage: more than or equal to 210 percent; the rebound resilience: more than or equal to 93 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
The physical properties of the prepared insole are as follows: density: 0.60g/cm3(ii) a Tensile strength at break: not less than 3.1 MPa; elongation percentage: more than or equal to 210 percent; the rebound resilience: more than or equal to 93 percent; water vapor permeability: not less than 7.5 mg/(cm)2.h）。
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (10)

1. A high-resilience foam rubber is characterized in that: the material comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 10-20 parts of chloroprene rubber, 3-7 parts of active zinc oxide, 1-3 parts of magnesium oxide, 10-20 parts of stearic acid, 1-3 parts of anti-aging agent I, 1-3 parts of anti-aging agent II, 10-20 parts of white factice, 10-20 parts of carbon black, 1-3 parts of foaming agent I, 3-5 parts of foaming agent II, 5-10 parts of naphthenic oil, 0.1-0.5 part of accelerator I, 2-3 parts of accelerator II, 0.5-1 part of accelerator III and 1-3 parts of sulfur.
2. The high resilience foam rubber according to claim 1, wherein: also can comprise 2 to 5 parts of antibacterial and deodorant powder.
3. The high resilience foam rubber according to claim 1 or 2, wherein: the anti-aging agent I is an anti-aging agent MB, and the anti-aging agent II is an anti-aging agent 4010 NA.
4. The high resilience foam rubber according to claim 1 or 2, wherein: the foaming agent I is foaming agent AC, and the foaming agent II is foaming agent OBSH.
5. The high resilience foam rubber according to claim 1 or 2, wherein: the accelerator I is an accelerator M, the accelerator II is an accelerator DM, and the accelerator III is an accelerator TMTD.
6. The process for producing a high resilience foam rubber according to any one of claims 1 to 5, wherein: the method comprises the following steps of (1) plasticating natural rubber in an open mill with a roll gap of 0.8-1mm for 8-12 times, cooling for 0.8-1.5 hours, adding chloroprene rubber, thinly passing for 5-8 times again, and standing for more than 20 hours to obtain a mixed rubber material;
(2) adding the plasticated mixed rubber material into an internal mixer, carrying out internal mixing for 20-60 seconds, then sequentially adding other raw materials of the rebound foaming rubber layer except sulfur, controlling the internal mixing temperature to be 85-110 ℃, carrying out internal mixing for 200 seconds and uniformly mixing;
(3) and adding sulfur into the mixed rubber material on a flat machine, packaging after all the materials are eaten, taking out the rubber pieces, cooling, and standing for more than 12 hours to obtain the high-resilience foamed rubber.
7. A breathable and high-damping rubber insole is characterized in that: the high-resilience rubber foam comprises a breathable and shock-absorbing foam rubber layer and a breathable layer above the breathable and shock-absorbing foam rubber layer, wherein the breathable and shock-absorbing foam rubber layer is the high-resilience rubber foam described in any one of claims 1 to 7.
8. The air-permeable, high damping rubber insole of claim 7, wherein: the air permeable layer is made of fiber, cotton cloth or chemical fiber cloth; the sole part and the heel part of the insole are provided with vent holes.
9. The air-permeable, high damping rubber insole of claim 8, wherein: the breathable layer is polyester knitted fabric; the air vent holes are vertically communicated with the insole.
10. The method for preparing the air-permeable, high shock-absorbing rubber insole according to claim 9, wherein: the high-resilience foamed rubber is heated, rolled and cut into a shoe pad shape, a layer of polyester knitted fabric is laid on the upper surface of the shoe pad-shaped rubber sheet, the shoe pad-shaped rubber sheet and the polyester knitted fabric are put into a vulcanizing machine mold together for vulcanization, the vulcanization pressure is 0.5-1MPa, the vulcanization temperature is 145-160 ℃, and the vulcanization time is 6-10 minutes, so that the breathable high-damping rubber shoe pad is obtained.
CN202011612712.0A 2020-12-31 2020-12-31 High-resilience foamed rubber, preparation method thereof, shoe pad comprising high-resilience foamed rubber and preparation method of shoe pad Pending CN112625314A (en)

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