Polyurethane adhesive for high-cohesiveness popcorn sole and preparation method thereof

A technology of polyurethane adhesive and high cohesiveness, which is applied in the field of polyurethane synthesis, can solve the problems that are not related to the synthesis method, synthesis process, and performance parameters of the foaming adhesive, so as to improve chemical stability and improve Void, the effect of simple production process

Inactive Publication Date: 2019-04-16
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, neither of these two patents involves the synthesis method and synthesis process of the foaming adhesive used in popcorn soles, and the relevant performance parameters are not explained.

Method used

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  • Polyurethane adhesive for high-cohesiveness popcorn sole and preparation method thereof
  • Polyurethane adhesive for high-cohesiveness popcorn sole and preparation method thereof
  • Polyurethane adhesive for high-cohesiveness popcorn sole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Put 70kg DL4000 into the stirring tank at room temperature, start the stirring, the speed is 100r / min, heat up to 105°C, vacuumize, the vacuum degree is lower than -0.095MPa, dehydrate and degas for 2 hours, check the moisture, lower than 5 / 10,000, cool down To 40°C, add 20kg of NDI isocyanate and 3g of phosphoric acid, heat up to 85°C, react for 2 hours, then add 0.2kg of nano-titanium dioxide, continue to keep warm for 1 hour, finally add 10kg of DOTP, stir for 30 minutes to sample, after passing the test, cool down to room temperature , Nitrogen-sealed barrels.

Embodiment 2

[0036] Add 65kgED-28 to the stirring tank at room temperature, start stirring, rotate at 80r / min, heat up to 110°C, vacuumize, the vacuum degree is lower than -0.095MPa, dehydrate and degas for 2 hours, check the moisture, it is less than 5 / 10,000, Cool down to 30°C, add 20kg of NDI isocyanate and 3g of phosphoric acid, heat up to 85°C, react for 1 hour, then add 1.0kg of nano-calcium phosphate, keep warm for 2 hours, finally add 15kg of DOP, stir for 30 minutes to sample, after passing the test, cool down To room temperature, nitrogen sealed barrels.

Embodiment 3

[0038] Put 25kgEP-3600 and 50kgDL3000 into the stirring tank at room temperature, start stirring, the speed is 90r / min, heat up to 100°C, vacuumize, the vacuum degree is lower than -0.095MPa, dehydrate and degas for 2 hours, check the moisture, it is lower than 10000 5. Cool down to 35°C, add 15kg of pure MDI, 5kg of liquefied MDI and 3g of benzoyl chloride, heat up to 70°C, react for 2 hours, then add 0.5kg of nano-dicalcium phosphate, continue to keep warm for 1 hour, and finally add 5kg of DBP, Stir for 45 minutes to take a sample. After passing the test, cool down to room temperature and pack in a nitrogen-tight barrel.

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Abstract

The invention belongs to the technical field of polyurethane synthesis, and particularly relates to a polyurethane adhesive for a high-cohesiveness popcorn sole and a preparation method thereof. The polyurethane adhesive is prepared from, by mass, 65-84% of polyether polyol; 10-20% of isocyanate; 5-15% of a plasticizer; 0.1-1.0% of a nano material; 30 ppm of a polymerization inhibitor. According to the invention, the nano material is creatively introduced, so that the abrasion resistance property, adhesive property and chemical stability of the foamed sole product can be obviously enhanced. The polyurethane adhesive has the advantages of good fluidity, uniform filling among foamed particles, no gaps, no defects and beautiful appearance of the sole. The method has the advantages of simple production process and strong operation practicability.

Description

technical field [0001] The invention belongs to the technical field of polyurethane synthesis, and in particular relates to a high-adhesive polyurethane adhesive for popcorn soles and a preparation method thereof. Background technique [0002] Polyurethane thermoplastic foam particles, referred to as ETPU particles, after pretreatment under pressure and heating, the TPU particles will increase in volume and expand to form elliptical non-crosslinked foam particles ETPU containing micro-closed cells, which look like "popcorn" ". This scientific and technological discovery is gradually being sought after by people and has a broad market prospect. It has been successfully applied to plastic track, children's sports floor, shoe materials and other fields, which is in line with the national pursuit of high quality of life. [0003] ETPU foam shoe material, commonly known as popcorn sole, has many characteristics such as light weight, high elasticity, and excellent wear resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08K3/22C08K3/32C08K5/12C08L75/04C08L75/08C08J9/236
CPCC08G18/48C08J9/236C08J2375/04C08J2475/08C08K3/22C08K3/32C08K5/12C08K2003/2241C08K2003/325C08K2201/011
Inventor 孙清峰李海朝孟素青甘经虎
Owner SHANDONG INOV POLYURETHANE
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