High-elasticity damping foaming insole

Abstract

The invention relates to the technical field of shoe materials, and discloses a high-elasticity vibration-damping foaming insole formula which comprises the following components: 20 g of block polyether amide resin, 10 g of table plastic, 30 g of refractory castable, 10 g of polyethylene, 25 g of Dow polyolefin elastomer, 5 g of zinc ionomer thermoplastic resin, 5 g of wear-resistant agent, 0.48 g of odorless bridging agent, 0.5 g of stone, 0.5 g of zinc stearate, 2 g of zinc oxide, 0.1 g of steel plate and 4 g of titanium dioxide. The block polyether amide resin is the lightest engineering thermoplastic elastomer, has good, stable and consistent performance at a low temperature, has no loss of mechanical properties under repeated deformation and is anti-fatigue, the block polyether amide resin has good resilience and elastic recovery, the high-fluidity powder is pure aluminum powder, and the anti-fatigue performance is good. The pure aluminum powder is metal powder with good fluidity and is silver gray metal, the relative density of the pure aluminum powder is 2.55 kg / m < 3 >, and the melting point of aluminum with the purity of 99.5% is 685 degrees.

Description

Technical Field

[0001] The invention relates to the technical field of shoe materials, in particular to a high-elasticity vibration-damping foam midsole. Background Art

[0002] The shoes currently on the market are generally composed of three parts: an outsole, a midsole and an upper. The manufacturing process is generally to first make the outsole, the midsole and the upper separately, and then use glue to glue the outsole, the midsole and the upper together to form a complete shoe. The midsole and the upper can also be connected by sewing.

[0003] The traditional shoemaking process is relatively cumbersome and requires the use of glue adhesives. The volatilization of glue adhesives produces harmful gases, posing a threat to human health and easily polluting the environment, which is not environmentally friendly. Shoes made using the traditional shoemaking process are prone to degumming of the upper and the sole after being used for a period of time, and are even prone to breakage in low temperature weather. In addition, many existing traditional shoemaking products on the market often have poor texture and poor resilience in the midsole, resulting in poor wearing comfort. In addition, many midsoles of shoes in the prior art have poor aging resistance, so it is necessary to improve the formula and process of the midsole of the shoe. To this end, we propose a high-elasticity vibration-damping foam midsole. Summary of the invention

[0004] The purpose of the present invention is to provide a high-elasticity vibration-damping foam midsole, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a formula of a high-elasticity vibration-damping foam midsole, which comprises the following components: 20g of block polyetheramide resin, 10g of Formosa Plastics, 30g of refractory castable, 10g of polyethylene, 25g of Dow polyolefin elastomer, 5g of zinc ionomer thermoplastic resin, 5g of wear-resistant agent, 0.48g of odorless bridging agent, 0.5g of stone, 0.5g of zinc stearate, 2g of zinc oxide, 0.1g of steel plate, 4g of titanium dioxide, 3.2g of high-fluidity powder, 0.08g of defoaming agent and 0.2g of aluminum plate.

[0006] Preferably, the block polyetheramide resin is the lightest engineering thermoplastic elastomer, has good and stable performance at low temperatures, no loss of mechanical properties under repeated deformation, and is fatigue-resistant. The block polyetheramide resin has good rebound and elastic recovery.

[0007] Preferably, the high-fluidity powder is pure aluminum powder, which is a metal powder with good fluidity. Pure aluminum powder is a silver-gray metal with a relative density of 2.55 kg / m 3, the melting point of 99.5% pure aluminum is 685 degrees, the boiling point is 2065 degrees, the melting heat is 323kJ / g, aluminum is reducible, very easy to oxidize, and releases heat during oxidation. When oxidized rapidly, 15.5kJg of heat is released per gram. Aluminum is a ductile metal and is easy to process. The oxide film on the surface of pure aluminum powder is transparent and has good chemical stability.

[0008] Preferably, the refractory castable mainly comprises one or more of refractory aggregate, powder and binder.

[0009] Preferably, the polyethylene is a thermoplastic resin obtained by polymerization of ethylene. The heat resistance of polyethylene is not high, but it improves with the increase of relative molecular mass and crystallinity. It has good low temperature resistance, and the brittle temperature can generally reach below -50°C, and with the increase of relative molecular mass, the lowest temperature can reach -140°C. The linear expansion coefficient of polyethylene is large, and the highest temperature can reach (20-24)×10 -5 / K. High thermal conductivity.

[0010] Preferably, the polyolefin elastomer is composed of semi-crystalline thermoplastic polyolefin and amorphous elastomer, and the polyolefin elastomer has high elasticity, high strength and high resilience of rubber.

[0011] Preferably, the zinc stearate mainly comprises one or more of a lubricant and a release agent of a styrene resin, a phenolic resin, and an amino resin.

[0012] Preferably, the high-elasticity vibration-damping foam midsole is prepared using any of the formulas of the high-elasticity vibration-damping foam midsole described above.

[0013] The present invention provides a high-elasticity vibration-damping foam midsole. The high-elasticity vibration-damping foam midsole has the following beneficial effects:

[0014] (1) The high elastic vibration damping foam midsole, the polyolefin elastomer is a thermoplastic elastomer with a narrow relative molecular weight distribution and uniform short chain branch distribution using metallocene as a catalyst. The main performance of this elastomer is very outstanding, and its performance indicators in many aspects exceed those of ordinary elastomers;

[0015] (2) The high elastic vibration damping foam midsole, the refractory material is divided into shaped refractory material and unshaped refractory material. The unshaped refractory material usually refers to the castable, which is a mixed powdery granular material composed of a variety of aggregates or aggregates and one or more adhesives. When used, it must be mixed with one or more liquids and stirred evenly, and has strong fluidity and plasticity. DETAILED DESCRIPTION

[0016] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the following is a specific implementation of the present invention.

[0017] Example 1

[0018] A formula for a high-elasticity vibration-damping foam midsole, comprising the following components: 20 g of block polyetheramide resin, 10 g of Formosa Plastics, 30 g of refractory castable, 10 g of polyethylene, 25 g of Dow polyolefin elastomer, 5 g of zinc ionomer thermoplastic resin, 5 g of wear-resistant agent, 0.48 g of odorless bridging agent, 0.5 g of stone, 0.5 g of zinc stearate, 2 g of zinc oxide, 0.1 g of steel plate, 4 g of titanium dioxide, 3.2 g of high-fluidity powder, 0.08 g of defoaming agent and 0.2 g of aluminum plate.

[0019] Furthermore, the block polyetheramide resin is the lightest engineering thermoplastic elastomer, with good and stable performance at low temperatures, no loss of mechanical properties under repeated deformation, and fatigue resistance. The block polyetheramide resin has good rebound and elastic recovery.

[0020] Furthermore, the high fluidity powder is pure aluminum powder. Pure aluminum powder is a metal powder with good fluidity. Pure aluminum powder is a silver-gray metal with a relative density of 2.55kg / m 3 , the melting point of 99.5% pure aluminum is 685 degrees, the boiling point is 2065 degrees, the melting heat is 323kJ / g, aluminum is reducible, very easy to oxidize, and releases heat during oxidation. When oxidized rapidly, 15.5kJg of heat is released per gram. Aluminum is a ductile metal and is easy to process. The oxide film on the surface of pure aluminum powder is transparent and has good chemical stability.

[0021] Furthermore, refractory castables are mainly composed of one or more of refractory aggregates, powders and binders.

[0022] Going a step further, polyethylene is a thermoplastic resin obtained by polymerization of ethylene. The heat resistance of polyethylene is not high, but it improves with the increase of relative molecular mass and crystallinity. It has good low temperature resistance, and the brittle temperature can generally reach below -50℃, and as the relative molecular mass increases, the lowest temperature can reach -140℃. The linear expansion coefficient of polyethylene is large, and the highest temperature can reach (20~24)×10 -5 / K. High thermal conductivity.

[0023] Furthermore, polyolefin elastomers are composed of semi-crystalline thermoplastic polyolefins and amorphous elastomers. Polyolefin elastomers have high elasticity, high strength and high resilience of rubber.

[0024] Secondly, zinc stearate mainly includes one or more of lubricants and release agents of styrene resin, phenolic resin and amino resin.

[0025] In addition, the high-elasticity vibration-damping foam midsole is prepared using any of the above-mentioned formulas of the high-elasticity vibration-damping foam midsole.

[0026] The above are only exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected one by one or multiple ones can be used in combination according to actual needs. Therefore, the present invention should naturally cover other combinations and specific applications related to the invention of this case.

Claims

1. A formula for a high elastic vibration damping foam midsole, characterized in that: The formula includes the following components: 20g of block polyetheramide resin, 10g of Formosa Plastics, 30g of refractory castable, 10g of polyethylene, 25g of Dow polyolefin elastomer, 5g of zinc ionomer thermoplastic resin, 5g of wear resistance agent, 0.48g of odorless bridging agent, 0.5g of stone, 0.5g of zinc stearate, 2g of zinc oxide, 0.1g of steel plate, 4g of titanium dioxide, 3.2g of high fluidity powder, 0.08g of defoaming agent and 0.2g of aluminum plate.

2. The formula of a high elasticity vibration damping foam midsole according to claim 1, characterized in that: The block polyetheramide resin is the lightest engineering thermoplastic elastomer, which has highly stable chemical properties and heat resistance.

3. The formula of the high elasticity vibration damping foam midsole according to claim 1, characterized in that: The high-fluidity powder is pure aluminum powder, which is a metal powder with good fluidity.

4. The formula of the high elasticity vibration damping foam midsole according to claim 1, characterized in that: The refractory castable is mainly made by fully mixing refractory aggregate, powder and binder.

5. The formula of the high elasticity vibration damping foam midsole according to claim 1, characterized in that: The polyethylene is a thermoplastic resin obtained by polymerization of ethylene, and the thermoplastic resin includes at least one or more of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polyester, polyoxymethylene, polyamide, and polyphenylene ether.

6. The formula of the high elasticity vibration damping foam midsole according to claim 1, characterized in that: The polyolefin elastomer is composed of at least one or more of styrene resin, copolyester, polyurethane, polyamide, thermoplastic polyolefin and thermoplastic vulcanized rubber, and the polyolefin elastomer has high elasticity, high strength and high resilience.

7. The formula of the high elasticity vibration damping foam midsole according to claim 1, characterized in that: The zinc stearate mainly comprises one or more of lubricants and release agents of styrene resin, phenolic resin and amino resin.

8. A high elasticity vibration-damping foam midsole, characterized in that: The high-elasticity vibration-damping foam midsole is prepared using the formula of the high-elasticity vibration-damping foam midsole described in any one of claims 1 to 8.