Special thermoplastic polyurethane modification flame-retardant synergetic functional master batch and preparation method thereof

A thermoplastic polyurethane and functional masterbatch technology, which is applied in the field of plastic modification processing, can solve problems such as poor fluidity, uneven dispersion, and damaged flame retardant effect, so as to improve compactness and structural stability, increase thermal decomposition temperature, The effect of excellent thermal stability

Active Publication Date: 2019-12-20
江苏万纳普新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a method for preparing a special flame-retardant synergistic functional masterbatch for thermoplastic polyurethane modification, which uses multi-layer high-density flame-retardant synergistic materials to coat brominated flame retardants, Then compound the coated ethylene bis(tetrabromophthalamide) flame retardant with a flame retardant synergist, carrier resin and other additives to prepare a flame retardant functional masterbatch. Tetrabromophthalamide) has defects such as poor thermal stability, easy decomposition during processing, easy yellowing, poor fluidity, uneven dispersion, and impaired flame retardant effect

Method used

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  • Special thermoplastic polyurethane modification flame-retardant synergetic functional master batch and preparation method thereof

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Effect test

Embodiment 1

[0037] A special flame retardant synergistic functional masterbatch for thermoplastic polyurethane modification, the quality ratio of raw materials is as follows:

[0038] Multiple composite coated ethylene bis(tetrabromophthalamide) 75.0kg Zinc phosphate 10.0 kg thermoplastic polyurethane 13.0kg Styrene-acrylonitrile copolymer coated PTFE 1.0 kg stearic acid 700.0 g Ethylene bis stearamide 300.0 g

[0039] The preparation method of the multiple composite coating ethylene bis(tetrabromophthalamide) used in the above-mentioned functional masterbatch is as follows:

[0040] Add 250 L of absolute ethanol, 150 kg of ethylene bis(tetrabromophthalamide), 7 kg of aluminum sol, and 1 kg of zinc oxide sol into the enamel reaction kettle with a stirring and temperature control device, stir well and add to 40°C, then add ammonia water with a mass percentage of 10.0 wt.% dropwise at an even speed, and control the pH value of the reaction sol...

Embodiment 2

[0044] A special flame retardant synergistic functional masterbatch for thermoplastic polyurethane modification, the quality ratio of raw materials is as follows:

[0045] Multiple composite coated ethylene bis(tetrabromophthalamide) 60.0kg Zinc phosphate 25.0 kg thermoplastic polyurethane 11.5 kg Styrene-acrylonitrile copolymer coated PTFE 2.0 kg Oleamide 1.0 kg polyethylene wax 500.0 g

[0046] The preparation method of the multiple composite coating ethylene bis(tetrabromophthalamide) used in the above-mentioned functional masterbatch is as follows:

[0047] Add 250 L of absolute ethanol, 150 kg of ethylene bis(tetrabromophthalamide), 8 kg of aluminum sol, and 1.5 kg of zinc oxide sol into the enamel reaction kettle with a stirring and temperature control device, stir well and add to 35°C, then add ammonia water with a mass percentage of 11.0 wt.% at an even speed, and control the pH value of the reaction solution at 7.5 to 8...

Embodiment 3

[0050] A special flame retardant synergistic functional masterbatch for thermoplastic polyurethane modification, the quality ratio of raw materials is as follows:

[0051] Multiple composite coated ethylene bis(tetrabromophthalamide) 70.0 kg Zinc phosphate 15.0 kg thermoplastic polyurethane 12.5 kg Styrene-acrylonitrile copolymer coated PTFE 1.5 kg Zinc stearate 700.0 g Polydimethylsiloxane 300.0 g

[0052] The preparation method of the multiple composite coating ethylene bis(tetrabromophthalamide) used in the above-mentioned functional masterbatch is as follows:

[0053] Add 250 L of absolute ethanol, 150 kg of ethylene bis(tetrabromophthalamide), 9 kg of aluminum sol, and 2 kg of zinc oxide sol into the enamel reaction kettle with a stirring and temperature control device, stir well and add to 38°C, then add ammonia water with a mass percentage of 12.5 wt.% at an even speed, and control the pH value of the reaction solution at ...

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Abstract

The invention relates to the technical field of plastic modification processing and in particular to a special thermoplastic polyurethane modification flame-retardant synergetic functional master batch and a preparation method thereof. The functional master batch adopts multiple composite coated ethylene di(tetrabromo phthalic diamide) as main body flame retardant, and comprises the following components in percentage by mass: 60.0-75.0wt.% of multiple composite coated ethylene di(tetrabromo phthalic diamide), 10.0-25.0wt.% of zinc phosphate, 9.0-13.0wt.% of thermoplastic polyurethane, 1.0-2.0wt.% of styrene-acrylonitrile copolymer coated polytetrafluoroethylene, 0.5-1.0wt.% of a dispersant and 0.3-0.5wt.% of a lubricant. Compared with a conventional flame-retardant functional master batch,the functional master batch disclosed by the invention is capable of remarkably improving the thermal stability of brominated flame retardant, a material yellowing phenomenon in a thermal mechanicalprocessing process can be effectively reduced, and the flame retardant effect of domestic brominated flame retardant on the thermoplastic polyurethane can be improved.

Description

technical field [0001] The invention relates to the technical field of plastic modification processing, in particular to a special flame-retardant synergistic functional masterbatch for thermoplastic polyurethane modification and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane is an important thermoplastic elastomer. It is widely used in household appliances, industrial electronic appliances, automobiles and other vehicles. However, it is often necessary to implement flame retardant modification to improve its safety in use. The flame retardant modification of thermoplastic polyurethane can be realized by adding flame retardant and melt blending through twin-screw extruder. Flame retardants can prevent thermoplastic polyurethane from being ignited and inhibit flame propagation, which can effectively improve the combustion resistance of thermoplastic polyurethane. According to the classification of flame retardant elements, flame retard...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L27/18C08L25/12C08K13/06C08K9/10C08K3/32C08K5/3417C08K5/20C08J3/22
CPCC08J3/226C08J2375/04C08J2427/18C08J2425/12C08J2475/04C08K13/06C08K9/10C08K2003/328C08K5/3417C08K5/20
Inventor 李翰卿汪晓东
Owner 江苏万纳普新材料科技有限公司
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