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TPU material with pearlescent and thermochromic effects and preparation method thereof

A temperature-sensitive discoloration and pearlescent technology, which is applied in the field of shoe accessories materials, can solve problems such as dull luster of the metallic color layer or pearlescent layer, easy damage to the metallic color layer or pearlescent layer, and affect the appearance of the product, so as to improve the aesthetics of use and The effects of diversity, long gloss retention time, and sufficient reversible repeat life

Inactive Publication Date: 2019-06-07
广东康诚新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used method is to process and apply special effect powder such as gold powder, silver powder, pearl powder, etc. on the surface of the formed product, and expose it to the outer layer for use, so that the metallic color layer or pearlescent layer is easily damaged. The gloss also fades gradually, affecting the appearance of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A TPU material with pearlescent and thermochromic effects is composed of the following mass fractions: 4,4'-diphenylmethane diisocyanate 35%, polymer polyol 30%, 1,4-butanediol 10% %, Microencapsulated Pb 2 CrO 5 Powder 11% and TiO 2 / Al 2 O 3 Silver white pearl powder 11%, 2,6-di-tert-butyl-4-methylphenol 0.5%, anti-UV agent 0.5%, stearic acid acyl 0.1%, antibacterial agent 1.9%, among which, the microcapsule structure is composed of n-butyraldehyde and polyvinyl alcohol, the mass ratio of the two is 0.5:1.

[0028] A method for preparing the above-mentioned TPU material with pearlescent and thermochromic effects, comprising the following steps:

[0029] (1) Weigh out 4,4'-diphenylmethane diisocyanate, polymer polyol, 1,4-butanediol, and microcapsule-structured Pb by weight fraction respectively. 2 CrO 5 Powder and TiO 2 / Al 2 O 3 Silver white pearl powder, 2,6-di-tert-butyl-4-methylphenol, anti-UV agent, stearic acid acyl and antibacterial agent, and mix the...

Embodiment 2

[0033] A TPU material with pearl luster and thermochromic effect is composed of the following substances in mass fraction: 40% of phenylene-1,4-diisocyanate, 25% of polymer polyol, hydroquinone-bis(β-hydroxyethyl alcohol) base) ether 8%, microcapsule structured Pb 2 CrO 5 Powder 12% and TiO 2 / Al 2 O 3 Silver white pearl powder 12%, tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester 0.5%, anti-UV agent 0.5%, oleic acid amide 0.2%, antibacterial agent 1.8% , wherein the microcapsule structure is prepared from n-butyraldehyde and polyvinyl alcohol, and the mass ratio of the two is 0.6:1.2.

[0034] A method for preparing the above-mentioned TPU material with pearlescent and thermochromic effects, comprising the following steps:

[0035] (1) Weigh phenylene-1,4-diisocyanate, polymer polyol, hydroquinone-bis(β-hydroxyethyl) ether, microcapsule structured Pb by weight fraction respectively 2CrO 5 Powder and TiO 2 / Al 2 o 3 Silver white ...

Embodiment 3

[0039] A TPU material with pearlescent and temperature-sensitive discoloration effects, composed of the following substances in mass fractions: naphthalene-1,5-diisocyanate 45%, polymer polyol 20%, 1,6-hexanediol 5%, micro Encapsulated Pb 2 CrO 5 Powder 11% and TiO 2 / Al 2 o 3 15% silver white pearl powder, 1% poly(dipropylene glycol) phenyl phosphite, 1% anti-UV agent, 0.2% erucamide, 1.8% antibacterial agent, among which, the microcapsule structure is made of n-butyraldehyde and polyvinyl alcohol So, the mass ratio of the two is 0.7:1.5.

[0040] A method for preparing the above-mentioned TPU material with pearlescent and thermochromic effects, comprising the following steps:

[0041] (1) Weigh naphthalene-1,5-diisocyanate, polymer polyol, 1,6-hexanediol, microencapsulated Pb 2 CrO 5 Powder and TiO 2 / Al 2 o 3 Silver white pearl powder, poly(dipropylene glycol) phenyl phosphite, anti-UV agent, erucamide and antibacterial agent, and mix uniformly;

[0042] (2) Dry ...

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Abstract

The invention discloses a TPU material with pearlescent and thermochromic effects. The TPU material is composed of following substances in percentage by weight: 35 to 45% of diisocyanate, 20 to 30% ofpolymer polyol, 5 to 10% of a chain extender, 8 to 15% of thermochromic powder, 10 to 20% of pearl powder, 0.5 to 1% of an antioxidant, 0.5 to 1% of a UV resistant agent, 0.02 to 0.2% of a lubricant,and 1 to 2% of an antibacterial agent. The inorganic invertible thermochromic material and pearl powder microcapsule are structured and then mixed with diisocyanate and polymer polyol to prepare theTPU material, shoe fittings made of the TPU material have different colors as the temperature changes and also have a dazzling pearlescent effect, the practicality of the TPU material is enhanced, andthe beauty of the shoe fittings is enhanced.

Description

technical field [0001] The invention belongs to the technical field of shoe accessory materials, and in particular relates to a TPU material with pearlescent and thermochromic effects and a preparation method thereof. Background technique [0002] TPU is a new type of organic polymer synthetic material. Because of its special soft and hard segment block copolymer structure, it has high strength, high modulus and excellent mechanical properties. Compared with other elastomer materials, TPU has a hardness range of It has better comprehensive properties in terms of wear resistance, elasticity and mechanical properties; for example, the wear resistance and resilience of TPU are superior to ordinary polyurethane and PVC, and its aging resistance is superior to that of rubber. It is the best alternative to PVC and PU. The ideal material is known as a new type of polymer material internationally. [0003] TPU has a wide range of uses, for example, it can be used in footwear such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/65C08G18/63C08G18/32C08K9/10C08K3/22C08K5/098
Inventor 唐树忠张世平
Owner 广东康诚新材料科技股份有限公司
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