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Halogen-free full fogging face polyurethane composition and preparation method thereof

A technology of polyurethane and composition, applied in the field of halogen-free full-matte polyurethane composition and its preparation, can solve the problems of difficult direct compatibility and limited effect, etc.

Inactive Publication Date: 2014-01-01
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect is limited
[0003] Chinese patent document CN102199343A discloses a matte thermoplastic polyurethane elastomer composition, using SEBS as the matte agent of TPU, but it is difficult for SEBS and TPU to be directly compatible, so SEBS grafted maleic anhydride polymer can only be selected as a compatible agent

Method used

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  • Halogen-free full fogging face polyurethane composition and preparation method thereof
  • Halogen-free full fogging face polyurethane composition and preparation method thereof
  • Halogen-free full fogging face polyurethane composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A halogen-free full-fog polyurethane composition, comprising the following components in parts by weight:

[0025]

[0026] The thermoplastic polyurethane is polyester polyurethane.

[0027] The fogging agent is styrene block copolymer (SEBS).

[0028] The vulcanizing agent is an organic peroxide.

[0029] The graft is an acrylate-maleic anhydride graft.

[0030] The softening agent is naphthenic rubber oil.

[0031] The matting agent is white carbon black

[0032] The antioxidant is 1076.

[0033] The processing aid is organosilicone.

[0034] The preparation method of the halogen-free full-matte polyurethane composition comprises the steps of:

[0035] 5) Weigh each component according to the formula and mix evenly;

[0036] 6) Put the mixture into a twin-screw extruder, melt and extrude at 160-180°C with a rotation speed of 350rpm, pelletize, and pack.

Embodiment 2

[0038] A halogen-free full-fog polyurethane composition, comprising the following components in parts by weight:

[0039]

[0040] The thermoplastic polyurethane is polyether polyurethane

[0041] The fogging agent is selected from styrene-ethylene-propylene-styrene block copolymers (SEPS).

[0042] The graft is an acrylate-maleic anhydride graft.

[0043] Described softener is white mineral oil.

[0044] The matting agent is talcum powder.

[0045] The antioxidant is selected from 1010.

[0046] The processing aid is a mixture of organic silicone and zinc stearate.

[0047] The preparation method of the halogen-free full-matte polyurethane composition comprises the steps of:

[0048] 7) Weigh each component according to the formula and mix evenly;

[0049] 8) Put the mixture into a twin-screw extruder, melt and extrude at 160-180°C with a speed of 400rpm, pelletize, and pack.

Embodiment 3

[0051] A halogen-free full-fog polyurethane composition, comprising the following components in parts by weight:

[0052]

[0053] The thermoplastic polyurethane is polycarbonate thermoplastic polyurethane.

[0054] The matting agent is selected from acrylate rubber.

[0055] The vulcanizing agent is sulfur.

[0056] The graft is an acrylate-maleic anhydride graft.

[0057] The softening agent is selected from paraffinic rubber oil.

[0058] The antioxidant is selected from 1076.

[0059] Described processing aid is stearic acid.

[0060] The matting agent is calcium carbonate.

[0061] The preparation method of the halogen-free full-matte polyurethane composition comprises the steps of:

[0062] 9) Weigh each component according to the formula and mix evenly;

[0063] 10) Put the mixture into a twin-screw extruder, melt and extrude at 160-200°C, with a rotation speed of 200-500rpm, pelletize, and pack.

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Abstract

The invention provides a halogen-free full fogging face polyurethane composition which comprises the following components in parts by weight: 30-60% of thermoplastic polyurethane, 5-25% of a fogging agent, 0-2% of a vulcanizing agent, 0-15% of a graft, 0-25% of a softener, 1-3% of a delustering agent, 0.1-0.5% of an antioxygen agent and 0.1-3% of a processing agent, wherein the fogging agent is one or a composition selected from SEBS, SEPS, crylic acid ester rubber, EPDM rubber, NBR or POE. The halogen-free full fogging face polyurethane composition has the excellent characteristics of environmental protection, innocuity, full, high temperature resistance and the like, and is suitable for preparing flexible electric wires.

Description

technical field [0001] The present invention relates to a polyurethane material, in particular to a halogen-free polyurethane composition, especially to a halogen-free fully matte polyurethane composition and a preparation method thereof. Background technique [0002] TPU is thermoplastic polyurethane elastomer, which is widely used in various wires and cables, and gradually becomes an ideal substitute for PVC and PU materials. Thermoplastic polyurethane elastomer has good tear resistance, abrasion resistance and low and high temperature resistance. The surface of wire and cable products made of pure TPU raw materials through extrusion and processing is often hard, smooth and bright, lacking in texture and feel, and the surface is easy to scratch and unsightly. The usual practice is to add a matting agent, such as nano-zinc oxide, aluminum oxide, magnesium oxide or meteorological silica, to the TPU raw material to reduce the glossiness of the TPU product surface. However, ...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08L75/08C08L51/06C08L51/00
Inventor 钟荣栋
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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