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High-weather-resistance TPU composite material

A composite material, high weather resistance technology, used in the field of fabric manufacturing, can solve problems affecting product practicability and durability, material aging, surface yellowing, etc., and achieve the effect of overcoming strict viscosity requirements, high production efficiency, and small strength damage

Pending Publication Date: 2021-02-05
CTA HI TECH TEXTILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to overcome the defects in the above-mentioned prior art and provide a more durable high-weather-resistant TPU composite material to solve the problem of TPU surface due to oxidation, ultraviolet aging, etc. during the long-term use of the TPU material. The surface yellowing, cracking, falling off, powdering, etc. caused by the reasons seriously affect the practicability and durability of the product, and through the innovative introduction of the surface function treatment layer, the material aging problem caused by sunlight exposure is avoided

Method used

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  • High-weather-resistance TPU composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: the preparation of composite material:

[0034] 1. Preparation of PU coating: First, weigh each component according to the formula according to the specified requirements, and then use a high-speed mixer to mix. The stirring time does not exceed 20 minutes. The coating machine is carried out, and the amount of glue applied is controlled at 5-10g. After coating, it is dried in an oven at 120-140°C, and the drying time is 2-3 minutes;

[0035]2. Adhesive gluing: First, weigh each component according to the specified requirements according to the formula, and then use a high-speed mixer to mix. The stirring time does not exceed 20 minutes. The same is done with a coating machine. In order to ensure the peeling strength, the amount of glue applied is controlled at 10-15g, and the coating is dried in an oven at 140-160°C for 3-5 minutes.

[0036] 3. TPU layer compounding: firstly weigh each component according to the formula requirements, mix them through a h...

Embodiment 2

[0039] One, the preparation of PU coating: identical with the preparation method among the embodiment 1;

[0040] Two, adhesive gluing: same as the preparation method among the embodiment 1;

[0041] 3. TPU layer compounding: first weigh each component according to the formula requirements, mix them by a high-speed mixer, and dry them at a temperature of 70-90°C after mixing. The drying time is 2-4 hours. After drying, the materials are calendered and extruded Extrude the equipment for compounding, extrusion temperature is 180-200 degrees Celsius, and lamination is carried out under rolling pressure of 0.4-0.6Mpa.

[0042] Four: Preparation of surface treatment layer: same as the preparation method in Example 1. Finally made the comparative material 1.

Embodiment 3

[0043] Example 3: According to the preparation method of Step 1 to Step 3 in Example 1, comparative material 2 was prepared.

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Abstract

The invention provides a high-weather-resistance TPU composite material. The high-weather-resistance TPU composite material comprises a PU coating layer, a framework material layer, an adhesive layer,a TPU layer and a surface treatment layer which are sequentially bonded and stacked. According to the high-weather-resistance TPU composite material, the surface of a TPU film is subjected to functional coating, the TPU film is protected, and the weather resistance is improved, so that the durability of the material is improved. After functional treatment, the TPU film surface is illuminated in an ultraviolet aging oven for 200 hours, no visible yellowing phenomenon occurs, no cracks occur on the surface, and meanwhile, the breaking strength retention rate of the TPU film is 90% or above; thepreparation process technology has the characteristics of high production efficiency, energy conservation, environmental protection and flexible process technology, and the adopted polyurethane sizing material can be added with less or no auxiliary agents such as an anti-sticking agent and a lubricating agent, so that the influence of the auxiliary agents on the performance of the sizing materialis avoided. Meanwhile, the textile framework material is low in heating temperature and short in heating time, so that the strength damage to the framework material is relatively small. The processing precision is high, and the deviation of film thickness control can be controlled within 0.02 mm.

Description

technical field [0001] The invention belongs to the technical field of fabric manufacturing, and in particular relates to a high-weather-resistant TPU composite material. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is a branch of thermoplastic elastomer materials. It is a polymer material polymerized from three basic raw materials: diisocyanate, macromolecular polyol, and chain extender (low molecular weight diol). Compared with general-purpose plastic and rubber materials, TPU has a wide range of hardness, outstanding mechanical properties, excellent high / low temperature resistance, good processing performance, strong plasticity, strong designability, excellent environmental performance, and excellent transparency. It not only has the high elasticity of rubber materials, but also has the high strength of engineering plastics. [0003] TPU has a broad application space, in which the TPU film is compounded on various fabrics to form a composite m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/34B32B27/40B32B27/12B32B7/12B32B37/15B32B37/12B32B37/00B32B38/16D06N3/14D06N3/00C09J175/04C08J5/18C08J7/04C08L75/04
CPCB32B5/02B32B27/40B32B27/12B32B37/153B32B37/1284B32B7/12B32B37/00B32B38/164D06N3/147D06N3/0034C09J175/04C08J5/18C08J7/0427C08J2375/04C08J2475/04C08K2003/2241D06N2209/103D06N2209/1685D06N2209/1628D06N2209/143D06N2209/1635B32B2037/243B32B2262/0261B32B2255/26B32B2255/10B32B2255/02B32B2307/712B32B2307/71Y02P20/10
Inventor 张积财李鹏胡国银张涛
Owner CTA HI TECH TEXTILES