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Matte TPU (Thermoplastic Polyurethane) material and preparation method thereof

A matte agent and raw material technology, which is applied in the field of matte TPU materials and its preparation, can solve the problems of uneven dispersion, loss of material toughness, and high requirements for TPU materials, and achieve high mechanical properties

Active Publication Date: 2019-01-25
广州增城市大发塑胶颜料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can achieve the purpose of eliminating the surface gloss of molded products, a large amount of filler needs to be added to achieve a certain degree of matteness, which will cause a great loss of the toughness of the material
[0006] 2. Add incompatible third components, such as ungrafted rubber powder, gelled SNA (ultra-high molecular weight styrene-acrylonitrile copolymer), ultra-high molecular weight acrylic polymer, etc., in improving the product At the same time, the gloss will also lead to the lack of toughness of the material
[0007] In addition, at present, a single component is mostly used as a matting agent to add to polyurethane, and the effect of matting is also achieved through the blending of two materials, such as CN102199343A, Shanghai Kumho Sunny achieves matting by adding a certain amount of SEBS Although it can obtain a certain matting effect, the dispersion is not uniform enough, and the prepared product has a rough appearance and is not delicate enough. At the same time, it has high requirements for TPU materials and poor applicability.

Method used

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  • Matte TPU (Thermoplastic Polyurethane) material and preparation method thereof
  • Matte TPU (Thermoplastic Polyurethane) material and preparation method thereof
  • Matte TPU (Thermoplastic Polyurethane) material and preparation method thereof

Examples

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preparation example Construction

[0039] In a preferred embodiment, the polyurethane fogging agent masterbatch also includes 5 to 8 parts by weight of an auxiliary agent; preferably, the auxiliary agent is silicon dioxide; more preferably, the silicon dioxide The particle size is 70-120nm; more preferably, the silica is modified silica; more preferably, the modified silica is hyperbranched polyurethane modified silica, and its preparation method includes the following step:

[0040] (1) Add 80 parts by weight of N,N-dimethylformamide and 3 parts by weight of silicon dioxide into a three-necked flask, stir and ultrasonically disperse for 15 minutes, and add 1 part by weight of silane coupling agent dropwise under stirring and 10ml of deionized aqueous solution containing 10wt% triethylamine, then the system was heated to 150°C, refluxed for 4 hours, filtered, washed with ethanol, and dried to obtain modified silica;

[0041] (2) Take 1.8 parts by weight of the above-mentioned modified silica and add it to 100 ...

Embodiment 1

[0058] Embodiment 1 provides a kind of polyurethane fogging agent masterbatch, the preparation raw material of described polyurethane fogging agent masterbatch, comprises polyurethane 40, styrene-ethylene-butadiene-styrene copolymer 38, Acrylate Copolymer12.

[0059] The styrene-ethylene-butadiene-styrene copolymer is the SEBS product of Taiwan Taiwan Rubber brand No. 3152H, wherein the styrene content is 29wt%, and the viscosity in 25wt% toluene solution is 1.20Pa.s; Polyurethane is the product of Duterun Trading (Shenzhen) Co., Ltd.'s brand name 8585; the acrylate copolymer is made of methyl methacrylate, butyl acrylate and butyl methacrylate in a weight ratio of 6:1.5:0.2. The comonomer is prepared by the conventional preparation method described in the present invention.

[0060] This example also provides a kind of matte polyurethane composition, the raw material of described matte polyurethane composition, by weight, comprises

[0061]

[0062] The thermoplastic polyu...

Embodiment 2

[0064] Embodiment 2 provides a kind of polyurethane fogging agent masterbatch, the preparation raw material of described polyurethane fogging agent masterbatch, comprises polyurethane 50, styrene-ethylene-butadiene-styrene copolymer 45, Acrylate Copolymer 18.

[0065] The styrene-ethylene-butadiene-styrene copolymer is the SEBS product of Li Changrong chemical industry brand 9551, wherein the styrene content is 33wt%; the polyurethane is the 8585 brand of Duterun Trading (Shenzhen) Co., Ltd. The product; The acrylate copolymer is composed of methyl methacrylate, butyl acrylate and butyl methacrylate in a weight ratio of 6:2.5:0.8 as comonomers, through the conventional preparation method described in the present invention prepared.

[0066] This example also provides a kind of matte polyurethane composition, the raw material of described matte polyurethane composition, by weight, comprises

[0067]

[0068] The thermoplastic polyurethane is Taiwan Hongyi brand PU68DJ prod...

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Abstract

The invention relates to the field of high polymer materials and in particular relates to a matte TPU (Thermoplastic Polyurethane) material and a preparation method thereof. The invention provides a polyurethane matte agent master batch and a matte polyurethane composition, wherein preparation raw materials of the polyurethane matte agent master batch comprise polyurethane a styrene-ethylene-butadiene-styrene copolymer and an acrylate copolymer, wherein the weight ratio of the polyurethane to the styrene-ethylene-butadiene-styrene copolymer to the acrylate copolymer is (2 to 5) to (2 to 4) to1. The matte polyurethane composition has very good mechanical properties and matte effect.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a matte TPU material and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU for short) is an indispensable part of the polyurethane industry. It has good wear resistance and scratch resistance, and has excellent properties such as tensile strength, elongation at break and high tear strength. It is widely used in automobiles. , machinery, medical equipment and safety protection and other fields. [0003] At present, the power cords and connecting wires for household appliances and communication equipment, especially the connecting wires of communication equipment, often need matte environmental protection TPU wires and cables. In addition, for automotive interior parts, it is necessary to pay attention to the reflectivity of the instrument panel during design. It is necessary to improve the visibility of the instrument and reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L53/02C08L33/04C08J3/22
CPCC08J3/223C08J3/226C08J2375/04C08J2475/04C08L75/04C08L2205/025C08L2205/035C08L53/02C08L33/04
Inventor 白育彰卢德玮
Owner 广州增城市大发塑胶颜料有限公司
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