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TPU (thermoplastic polyurethane) film with high hydrolytic stability and preparation method of TPU film

A technology of hydrolytic stability and film, which is applied in the field of TPU film with high hydrolytic stability and its preparation, can solve problems such as insufficient hydrolytic stability, and achieve the effects of improved mechanical property retention rate, improved hydrolytic stability, and high hydrolytic stability

Inactive Publication Date: 2014-12-24
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its hydrolytic stability is still insufficient

Method used

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  • TPU (thermoplastic polyurethane) film with high hydrolytic stability and preparation method of TPU film
  • TPU (thermoplastic polyurethane) film with high hydrolytic stability and preparation method of TPU film
  • TPU (thermoplastic polyurethane) film with high hydrolytic stability and preparation method of TPU film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of TPU film with high hydrolysis stability, described TPU film comprises following composition by weight part:

[0036]

[0037] 1) Pre-drying the ingredients; the drying temperature is 80°C, and the drying time is 3h;

[0038] 2) Mix the ingredients according to the formula amount, and extrude at 180° C. to obtain a TPU film with high hydrolysis stability.

Embodiment 2

[0040] A kind of TPU film with high hydrolysis stability, described TPU film comprises following composition by weight part:

[0041]

[0042] 1) Pre-drying the ingredients; the drying temperature is 90° C., and the drying time is 2 hours;

[0043] 2) Mix the ingredients according to the formulation amount, and extrude at 200° C. to obtain a TPU film with high hydrolysis stability. Example 3

Embodiment 3

[0044] A kind of TPU film with high hydrolysis stability, described TPU film comprises following composition by weight part:

[0045]

[0046] 1) Pre-drying the ingredients; the drying temperature is 82°C, and the drying time is 2.8h;

[0047] 2) Mix the ingredients according to the formula amount, and extrude at 192° C. to obtain a TPU film with high hydrolysis stability. Example 4

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Abstract

The invention relates to a TPU (thermoplastic polyurethane) film with high hydrolytic stability and a preparation method of the TPU film. The TPU film comprises ingredients in parts by weight as follows: 100 parts of TPU particles, 12-25 parts of epoxy resin, 3-8 parts of polycarbodiimide and 0.3-10 parts of an antioxidant. The TPU film with the high hydrolytic stability is prepared by adding epoxy resin and polycarbodiimide into the TPU particles, so that the hydrolytic stability of a TPU film product is improved, and the mechanical property retention rate is increased to a large extent compared with a conventional product.

Description

technical field [0001] The invention relates to the technical field of TPU film preparation, in particular to a TPU film with high hydrolysis stability and a preparation method thereof. Background technique [0002] Thermoplastic elastomers are more and more widely used due to their excellent elongation at break, resilience, wear resistance, weather resistance and superior processing and molding methods compared to cast polyurethane. In particular, due to the rapid development of the polyurethane industry, the production capacity of raw material manufacturers has been continuously expanded, and the cost has been continuously reduced, thereby promoting the application and development of new rounds of polyurethane products. [0003] However, the existing thermoplastic polyurethane elastomer (TPU) has poor hydrolytic stability. The reason for the poor hydrolytic stability of thermoplastic polyurethane elastomers is that after water penetrates into the elastomer, it reacts chem...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L63/04C08L63/00C08L79/00C08K5/13C08K5/134
Inventor 何健雄王一良
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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