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Foaming shoe midsole material made of TPEE material and preparation process thereof

A material and foaming agent technology, applied in the field of shoe material foaming midsole, can solve the problems of large pores, open pores or uneven pore size, low melt strength, etc., and achieve stable microcellular structure, strong weather resistance, The effect of good recycling

Pending Publication Date: 2021-04-13
GUANGDONG ANGSI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low melt strength of TPEE, it is easy to produce large pores, open pores or uneven pore diameters when foaming. As a result, there are currently no TPEE midsole inventions in the domestic market.

Method used

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  • Foaming shoe midsole material made of TPEE material and preparation process thereof
  • Foaming shoe midsole material made of TPEE material and preparation process thereof
  • Foaming shoe midsole material made of TPEE material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The invention discloses a foam shoe midsole material made of TPEE, which comprises the following steps:

[0042] Raw materials: 85 parts of thermoplastic polyester elastomer, 3.4 parts of talc powder as lubricant and nucleating agent, 0.4 part of cell stabilizer, 1.0 part of DCP, and the names and parts of the remaining additives are shown in Table 1 shown.

[0043] Table 1 embodiment uses name and raw material parts

[0044]

[0045] After drying TPEE particles in a vacuum oven at 80°C for 3 hours, mix them with additives and pass them through a weight-loss precision feeder at a constant rate of 120cm 3 / s blanking, the material is plasticized through the twin-screw extruder, and is initially melted and mixed in the feeding section and the compression section. When entering the metering section, a supercritical fluid is injected into the foaming machine at a pressure of 8kpa to form a thermoplastic polyester. / Supercritical fluid two-phase system, which becomes a ...

Embodiment 2

[0049] The invention discloses a foam shoe midsole material made of TPEE, which comprises the following steps:

[0050] Raw materials: 95 parts of thermoplastic polyester elastomer, 1.2 parts of talc powder as lubricant, 2 parts of nucleating agent as a mixture of talc powder and wax powder, 1 part of cell stabilizer, 1.2 parts of DCP and BPO mixture, and the remaining additives The name of use and the number of parts of additives are shown in Table 3.

[0051] Table 3 embodiment use name and raw material parts

[0052]

[0053] After drying TPEE particles in a vacuum oven at 90°C for 2 hours, mix them with additives and pass them through a weight-loss precision feeder at a constant rate of 150cm 3 / s blanking, the material is plasticized through the twin-screw extruder, and is initially melted and mixed in the feeding section and the compression section. When entering the metering section, a supercritical fluid is injected into the foaming machine at a pressure of 6kpa to...

Embodiment 3

[0057] The invention discloses a foam shoe midsole material made of TPEE, which comprises the following steps:

[0058] Raw materials: 100 parts of thermoplastic polyester elastomer, 2.2 parts of non-polar PE wax as lubricant, 3 parts of wax powder as nucleating agent, 2 parts of cell stabilizer, 2 parts of BIPB, the names and additives of the remaining additives The number of copies is shown in Table 5.

[0059] Table 5 embodiment uses name and raw material parts

[0060]

[0061] After drying TPEE particles in a vacuum oven at 80°C for 2 hours, mix them with additives and pass them through a weight-loss precision feeder at a constant rate of 150cm 3 / s blanking, the material is plasticized through the twin-screw extruder, and is initially melted and mixed in the feeding section and the compression section. When entering the metering section, a supercritical fluid is injected into the foaming machine at a pressure of 8kpa to form a thermoplastic polyester. / Supercritical...

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Abstract

The invention relates to the technical field of shoe material foaming midsoles, and in particular relates to a foaming shoe midsole material made of a TPEE material and a preparation process thereof. The foaming midsole material made of the TPEE material comprises the following raw materials: a thermoplastic polyester elastomer, a foaming agent, a nucleating agent, an antioxidant, a lubricating agent, a cross-linking agent and a cell stabilizer. The foaming shoe midsole material has the advantages that compared with the most common EVA foaming midsole, the thermoplastic polyester elastomer foaming material is excellent in fatigue resistance, and the midsole made of the thermoplastic polyester elastomer foaming material can still keep soft, cushioning performance and resilience for a long time after being repeatedly treaded; the TPEE foaming material adopted by the invention has excellent temperature resistance, and compared with a TPU foaming midsole, the thermoplastic polyester elastomer foaming material has the advantages that the density of the foamed material is smaller than that of TPU, the weight is light, the rebound rate is high, and the weather resistance is strong; the foaming shoe midsole material is non-toxic and odorless, and has favorable recyclability; no harmful carcinogenic substance is generated in the production process; and low-carbon, environment-friendly and green manufacturing is met, and cyclic recycling and sustainable development can be achieved.

Description

technical field [0001] The invention relates to the technical field of shoe material foam midsole, in particular to a foam shoe midsole material made of TPEE and a preparation process thereof. Background technique [0002] The midsole is the core technology of a pair of shoes, and it is also the core symbol of major manufacturers. For a shoe midsole material, the five characteristics of cushioning, rebound, softness, light weight, and durability are very important. However, the common EVA and PU foam midsoles currently on the market are not only difficult to take into account the above five characteristics. The EVA midsole itself has poor pressure resistance. It is easy to deform and difficult to rebound after repeated pressure, resulting in poor durability. The PU midsole material itself has a high density. The sole foaming technology adopts chemical foaming technology, which will cause degradation by-products to remain in the foaming material, which will cause harm to the...

Claims

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Application Information

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IPC IPC(8): C08L67/00C08L91/06C08K3/34C08K5/14C08K5/526C08K5/134C08K13/02C08J9/12C08J9/14C08J9/00A43B13/04
CPCC08J9/122C08J9/146C08J9/143C08J9/141C08J9/0061C08J9/0095A43B13/04C08J2367/00C08J2491/06C08J2203/06C08J2203/14C08J2203/182C08K3/34C08K5/14C08K5/526C08K5/1345C08K13/02
Inventor 陈旭斌
Owner GUANGDONG ANGSI NEW MATERIAL TECH CO LTD
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