Modified PVC (polyvinyl chloride) resin material for soles of outdoor shoes

A PVC resin and technology for shoe soles, applied in the field of outdoor shoe materials, can solve the problems of poor impact resistance, reduced mechanical properties, high hardness, etc., and achieve the effects of excellent anti-aging performance, moderate elasticity of shoe soles, and good impact strength

Active Publication Date: 2015-09-23
莆田浩步鞋业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modified polyvinyl chloride shoe material has high hardness and is uncomfortable to wear; while the soft polyvinyl chloride has poor weather resistance, and its brittleness gradually increases with use, resulting in a sharp decrease in its mechanical properties; in addition, the existing The impact resistance of polyvinyl chloride shoe materials in the technology is also poor, and it is difficult to meet the comprehensive performance requirements for use as outdoor shoe soles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The formulation of the modified PVC resin material for outdoor shoe soles described in this embodiment is as follows (parts by weight): PVC resin: 100 parts, DOTP: 10 parts, epoxy soybean oil: 10 parts, polyvinyl butyral: 25 parts Parts, carbon fiber (10 μm in diameter, 100 μm in length): 20 parts, hydroxy-terminated styrene-butadiene liquid rubber: 10 parts, polyethylene wax: 0.5 parts, stearic acid: 2.0 parts, calcium zinc stabilizer (CZ-1): 4 parts. The preparation process is as follows: Stir each component in the formula evenly in a high-speed mixer, then banbury in a banbury mixer at a temperature range of 150°C, then process through twin-screw extrusion, and then granulate through single-screw extrusion. The material is fed by a cyclone separator, screened by a vibrating screen and then packaged to obtain a modified PVC resin material.

Embodiment 2

[0018] The formula of the modified PVC resin material for outdoor shoe soles described in this embodiment is as follows (parts by weight): PVC resin: 100 parts, DOTP: 12 parts, epoxy soybean oil: 8 parts, polyvinyl butyral: 30 parts Parts, carbon fiber (10 μm in diameter, 100 μm in length): 25 parts, hydroxy-terminated styrene-butadiene liquid rubber: 8 parts, polyethylene wax: 0.5 parts, stearic acid: 1.8 parts, calcium zinc stabilizer (CZ-1): 4 parts. The preparation process is as follows: Stir each component in the formula evenly in a high-speed mixer, then banbury in a banbury mixer at a temperature range of 150°C, then process through twin-screw extrusion, and then granulate through single-screw extrusion. The material is fed by a cyclone separator, screened by a vibrating screen and then packaged to obtain a modified PVC resin material.

Embodiment 3

[0024] Compared with embodiment 1, embodiment 3 only lies in using different calcium zinc stabilizers. The calcium-zinc stabilizer in the present embodiment is by the modified barium zeolite of 15 parts by weight, the calcium stearate of 12 parts by weight, the zinc stearate of 10 parts by weight, the phosphite ester of 6 parts by weight and the pentaerythritol of 8 parts by weight Stearate is kneaded at 100°C for 30 minutes. The pore diameter in the barium zeolite is 0.35-0.39nm, and the density is 2.7-2.8g / cm 3 . The modified barium zeolite refers to the use of a mixed aqueous solution of 8wt% oxalic acid and 0.5wt% amino trimethylene phosphonic acid to treat the barium zeolite for 20 hours, and then use alkali to neutralize to neutrality, after washing dried, and then calcined at 200° C. for 3 hours to obtain the modified barium zeolite.

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Abstract

The invention relates to a modified PVC (polyvinyl chloride) resin material for soles of outdoor shoes. The modified PVC resin material comprises, by weight, 100 parts of PVC resin, 10-12 parts of DOTP (dioctyl terephthalate), 8-10 parts of epoxidized soybean oil, 25-30 parts of polyvinyl butyral, 20-25 parts of carbon fibers, 8-10 parts of hydroxyl-terminated butadiene-styrene liquid rubber, 0.5-1.0 part of polyethylene wax, 1.8-2.0 parts of stearic acid and 3-5 parts of calcium-zinc stabilizers. The modified PVC resin material for the soles of the outdoor shoes does not comprise dioctyl phthalate and rare earth elements, thereby being more environment friendly in terms of texture; the soles made of the modified PVC resin material are moderate in elasticity, excellent in ageing resistance and high in impact strength.

Description

technical field [0001] The invention relates to the technical field of outdoor shoe materials, more specifically, the invention relates to a modified PVC resin material for outdoor shoe soles. Background technique [0002] Polyvinyl chloride, referred to as PVC in English, is a thermoplastic resin polymerized by vinyl chloride under the action of an initiator. It is a homopolymer of vinyl chloride. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC resin has been widely used in industry and daily life; in daily necessities, plastic sandals and sole materials for outdoor shoes can be made by using injection molding machines with various molds. In the prior art, modified PVC resin materials are generally used, adding plasticizers (to reduce the softening point of the product), stabilizers (to improve the heat resistance of the product, and delay the degradation of PVC) and lubricants (to improve the processing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L29/14C08L15/00C08L23/06C08K13/06C08K9/04C08K3/34C08K5/1515C08K7/06C08K5/09C08K5/098A43B13/04
CPCA43B13/04C08K2201/003C08K2201/004C08K2201/014C08L27/06C08L2205/035C08L91/00C08L29/14C08L15/00C08L23/06C08K13/06C08K9/04C08K3/34C08K7/06C08K5/09C08K5/098
Inventor 黄文鹏
Owner 莆田浩步鞋业有限公司
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