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TPU plastic particle processing technology for improving peeling and watermarking phenomena

A technology of plastic granules and phenomena, applied in the field of TPU plastic granule raw material processing, can solve the problems of poor dispersibility, difficult to mix uniformly, sticking, etc., and achieve the effect of preventing sticking, improving thermal stability and improving quality.

Inactive Publication Date: 2020-03-27
苏州英田电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of TPU plastic granule processing technology that improves peeling and watermarking phenomenon, to solve the existing TPU plastic granule raw material proposed in the above-mentioned background technology when mixed with color masterbatch and toner, poor dispersion, there is adhesion phenomenon , it is not easy to mix evenly, resulting in air holes between the masterbatches, and there will be moisture problems

Method used

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Embodiment Construction

[0019] An embodiment provided by the present invention: a TPU plastic granule that improves peeling and watermarking, is composed of the following raw materials:

[0020] TPU matrix 75-90%, lubricant 2-6%, color masterbatch and toner mixture 4%.

[0021] Further, 75-90% of the TPU matrix is ​​composed of 1 mol polyester polyol, 3 mol diphenylmethane diisocyanate and 2 mol 1,4-butanediol.

[0022] Further, a little wax is added to the glyceryl stearate powder as the lubricant, and the compound addition of waxes can improve the thermal stability of the TPU matrix.

[0023] Further, the ratio of masterbatch and toner is 4:1.

[0024] Further, a TPU plastic granule processing technique for improving peeling and watermarking comprises the following steps:

[0025] Step 1: Melt the high-molecular polyester diol, add it to the material tank and heat it to 110°C, then stir it at a low speed and vacuum dehydrate it for 2 hours until the water content is less than 0.05%, then release ...

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Abstract

The invention discloses a TPU plastic particle processing technology capable of improving peeling and watermarking phenomena, relates to the technical field of TPU plastic particle raw material processing, and aims at solving the problems that when an existing TPU plastic particle raw material is mixed with color master batch and toner, the dispersity is poor, an adhesion phenomenon exists, even mixing is not easy, so air holes exist between color master batch, and moisture exists. Raw material composition is as follows, 75-90% of TPU matrix, 2-6% of lubricant, and 4% of a color master batch and toner mixture. The 75-90% of the TPU matrix is prepared from 1g of molecular polyester polyol, 3g of molecular Diphenyl-methane-diisocyanate and 2g of molecular 1, 4-butanediol, wherein a lubricantis composed of glyceryl stearate powder and a small amount of wax, the composite addition of a wax substance can improve the thermal stability of the TPU matrix, and the ratio of the color master batch to the toner is 4: 1.

Description

technical field [0001] The invention relates to the technical field of raw material processing of TPU plastic granules, in particular to a TPU plastic granule processing technology for improving peeling and watermarking phenomena. Background technique [0002] TPU name is thermoplastic polyurethane elastomer rubber. It is mainly divided into polyester type and polyether type. It has wide hardness range, wear resistance, oil resistance, transparency, and good elasticity. It is widely used in daily necessities, sporting goods, toys, decorative materials and other fields. Halogen-free flame-retardant TPU can also replace Soft PVC meets environmental protection requirements in more and more fields. The so-called elastomer refers to a polymer material with glass transition temperature lower than room temperature, elongation at break > 50%, and better recovery after external force is removed. Polyurethane elastomer is a relatively special category of elastomers. Polyurethane ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08L91/06C08K5/103
CPCC08L75/06C08L91/06C08K5/103
Inventor 葛玉
Owner 苏州英田电子科技有限公司
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