Antistatic flame-retardant thermoplastic polyurethane elastomer

A thermoplastic polyurethane and antistatic technology, applied in the field of antistatic flame retardant thermoplastic polyurethane elastomer, can solve the problems of easy water absorption, toughening and toughening of TPU without consideration, and achieve the effects of easy industrial production, good antistatic, and reduced water absorption

Inactive Publication Date: 2018-04-20
XIAMEN HAIENDE PHOTOELECTRIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing technology can prepare flame-retardant and antistatic TPU materials, it does not consider the problems of TPU itself, such as easy water absorption, strengthening and toughening, etc. Therefore, it is imminent to develop new antistatic and flame-resistant polyurethane materials.

Method used

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  • Antistatic flame-retardant thermoplastic polyurethane elastomer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh each component according to the following parts by weight: 80 parts of TPU, 20 parts of LLDPE, 8 parts of C nanomaterials, 12 parts of composite flame retardant, 4 parts of antimony trioxide, 5 parts of polyolefin elastomer grafted maleic anhydride, 0.35 parts of ethylene bis stearamide, 0.6 parts of polyethylene glycol, 0.3 parts of PE wax, 0.1 parts of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate and 0.1 Tris(2,4-di-tert-butylphenyl)phosphite. First add the raw materials TPU, LLDPE and dispersant to an ordinary low-speed mixer and stir at room temperature for 5 minutes, then add other raw materials that have been weighed and stir for 10-15 minutes to disperse the components evenly; add them to a twin-screw extrusion granulator to melt and extrude Granulate. The melt extrusion temperature of the twin-screw granulator is from the feed port to the die head: 180°C, 190°C, 200°C, 210°C, 220°C, 220°C, 210°C. The relevant properties of the plastic alloy...

Embodiment 2

[0026] Weigh each component according to the following parts by weight: 80 parts of TPU, 30 parts of LLDPE, 8 parts of C nanomaterials, 12 parts of composite flame retardant, 4 parts of antimony trioxide, 5 parts of polyolefin elastomer grafted maleic anhydride, 0.35 parts of ethylene bis stearamide, 0.6 parts of polyethylene glycol, 0.3 parts of PE wax, 0.1 parts of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate and 0.1 Tris(2,4-di-tert-butylphenyl)phosphite. Add the raw materials TPU, LLDPE and dispersant to an ordinary low-speed mixer and stir at room temperature for 5 minutes, then add other weighed raw materials and stir for 10-15 minutes to make the components evenly dispersed; add them to a twin-screw extrusion granulator for melt extrusion grain. The melt extrusion temperature of the twin-screw granulator is from the feed port to the die head: 180°C, 190°C, 200°C, 210°C, 220°C, 220°C, 210°C. The relevant properties of the plastic alloy are shown in Table ...

Embodiment 3

[0028] Weigh each component according to the following parts by weight: 80 parts of TPU, 10 parts of LLDPE, 8 parts of C nanomaterials, 12 parts of composite flame retardant, 4 parts of antimony trioxide, 5 parts of polyolefin elastomer grafted maleic anhydride, 0.35 parts of ethylene bis stearamide, 0.6 parts of polyethylene glycol, 0.3 parts of PE wax, 0.1 parts of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate and 0.1 Tris(2,4-di-tert-butylphenyl)phosphite. Add the raw materials TPU, LLDPE and dispersant to an ordinary low-speed mixer and stir at room temperature for 5 minutes, then add other weighed raw materials and stir for 10-15 minutes to make the components evenly dispersed; add them to a twin-screw extrusion granulator for melt extrusion grain. The melt extrusion temperature of the twin-screw granulator is from the feed port to the die head: 180°C, 190°C, 200°C, 210°C, 220°C, 220°C, 210°C. The relevant properties of the plastic alloy are shown in Table ...

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Abstract

The invention discloses an antistatic flame-retardant thermoplastic polyurethane elastomer which is prepared from the following components in parts by weight: 80 parts of TPU, 20 parts of LLDPE, 8 parts of C nano material, 12 parts of composite flame retardant, 4 parts of antimonous oxide, 5 parts of compatilizer, 0.3-0.4 part of lubricant, 0.5-0.7 part of dispersant, 0.2-0.4 part of flow prompting agent and 0.2 part of antioxidant. A preparation method of the antistatic flame-retardant thermoplastic polyurethane elastomer comprises the following steps: preparing the materials according to theformula; stirring in a stirrer, and mixing uniformly; finally, adding a parallel twin-screw extrusions pelletizer, and performing melt blending and extrusion to obtain a material strip; performing water cooling, blow drying in air and dicing to obtain a product. Through test, the flame retardance of the material can reach the current globally universal highest level UL94V-0 of flame retardance, the surface resistivity is 105Ohm/cm<2>, the tensile strength reaches 32.4MPa, the elongation reaches 426%, the hardness (Shore A) is 90A, all properties of the product meeting the customer needs.

Description

technical field [0001] The invention relates to the technical field of antistatic and flame-resistant polymer materials, and more specifically, relates to an antistatic and flame-resistant thermoplastic polyurethane elastomer. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is a special polymer material between plastic and rubber. It has good elasticity, wear resistance, low temperature resistance, oil resistance and tensile strength. It is often used to make casters, wires and cables Sheaths, seals, synthetic leather, shock absorbers, etc., can replace rubber, and injection molding machines or extruders can be used for molding processing. The production process is clean, hygienic, environmentally friendly and pollution-free. However, it is easy to absorb water and cause hydrolysis reaction of molecules, which greatly reduces the tensile strength and elongation of TPU. It is difficult to shape during processing, has a high scrap rate, and is easy to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L23/08C08L51/06C08K13/02C08K3/04C08K3/22C08K5/134C08K5/526C08K5/03
CPCC08K2003/2224C08K2201/011C08L75/04C08L2201/02C08L2201/04C08L2205/035C08L2207/04C08L23/0815C08L51/06C08L71/02C08K13/02C08K3/04C08K3/2279C08K3/22C08K5/1345C08K5/526C08K5/03
Inventor 裴韶山詹国春
Owner XIAMEN HAIENDE PHOTOELECTRIC NEW MATERIAL
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