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Special polypropylene modified flame-retardant synergetic functional master batch and preparation method thereof

A functional masterbatch, flame retardant and synergistic technology, applied in the field of polypropylene modification special flame retardant synergistic functional masterbatch and its preparation, can solve the problems of damaged flame retardant effect, uneven dispersion, poor thermal stability, etc. Achieve the effect of good flame retardant effect, improved flame retardant effect and improved fluidity

Pending 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

[0008] Another object of the present invention is to provide a method for preparing a special flame-retardant and synergistic functional masterbatch for polypropylene modification. 3-dibromopropyl) ether flame retardant is coated, and then the coated tetrabromobisphenol A bis (2,3-dibromopropyl) ether flame retardant and flame retardant synergist, carrier Resin and other additives are compounded to prepare flame-retardant functional masterbatches, and a two-pronged approach solves the problem of poor thermal stability of domestic tetrabromobisphenol A bis(2,3-dibromopropyl) ether, easy decomposition, easy yellowing, poor fluidity, Defects such as uneven dispersion and impaired flame retardant effect

Method used

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  • Special polypropylene modified flame-retardant synergetic functional master batch and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] Multiple compound coated tetrabromobisphenol A bis(2,3-dibromopropyl) ether 70.0 kg Antimony trioxide 15.0 kg High Flow Polypropylene 9.0 kg Atactic polypropylene 4.0 kg Styrene-acrylonitrile copolymer coated PTFE 1.0 kg stearic acid 700.0 g Ethylene bis stearamide 300.0 g

[0037] The preparation method of multiple composite coating tetrabromobisphenol A bis(2,3-dibromopropyl) ether used in the above-mentioned functional masterbatch is as follows:

[0038] Add 250 L of absolute ethanol, 150 kg of tetrabromobisphenol A bis(2,3-dibromopropyl) ether, 7 kg of aluminum sol, and 1 kg of zinc oxide sol into the enamel reaction kettle with stirring and temperature control device, Stir evenly 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 solution at 7.5 to 8.5 to promote the sol-gel reaction of aluminum sol and zinc oxide sol, ...

Embodiment 2

[0042] Multiple compound coated tetrabromobisphenol A bis(2,3-dibromopropyl) ether 55.0kg Antimony trioxide 30.0 kg High Flow Polypropylene 7.5 kg Atactic polypropylene 4.0 kg Styrene-acrylonitrile copolymer coated PTFE 2.0 kg Oleamide 1.0 kg polyethylene wax 500.0 g

[0043] The preparation method of multiple composite coating tetrabromobisphenol A bis(2,3-dibromopropyl) ether used in the above-mentioned functional masterbatch is as follows:

[0044] Add 250 L of absolute ethanol, 150 kg of tetrabromobisphenol A bis(2,3-dibromopropyl) ether, 8 kg of aluminum sol, and 1.5 kg of zinc oxide sol into the enamel reaction kettle with stirring and temperature control device, Stir evenly and add to 35°C, then add ammonia water with a mass percentage of 11.0 wt.% dropwise at an even speed, and control the pH value of the reaction solution at 7.5 to 8.5 to promote the sol-gel reaction of aluminum sol and zinc oxide sol, After the ...

Embodiment 3

[0047] Multiple compound coated tetrabromobisphenol A bis(2,3-dibromopropyl) ether 70.0 kg Antimony trioxide 15.0 kg High Flow Polypropylene 10.0kg Atactic polypropylene 2.5 kg Styrene-acrylonitrile copolymer coated PTFE 1.5 kg Zinc stearate 700.0 g Polydimethylsiloxane 300.0 g

[0048] The preparation method of multiple composite coating tetrabromobisphenol A bis(2,3-dibromopropyl) ether used in the above-mentioned functional masterbatch is as follows:

[0049]Add 250 L of absolute ethanol, 150 kg of tetrabromobisphenol A bis(2,3-dibromopropyl) ether, 9 kg of aluminum sol, and 2 kg of zinc oxide sol into the enamel reaction kettle with stirring and temperature control device, Stir evenly and add to 38°C, then add ammonia water with a mass percentage of 12.5 wt.% dropwise at an even speed, and control the pH value of the reaction solution at 7.5 to 8.5 to promote the sol-gel reaction of aluminum sol and zinc oxide sol, Aft...

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Abstract

The invention relates to the technical field of plastic modification processing and in particular relates to a special polypropylene modified flame-retardant synergetic functional master batch and a preparation method thereof. The functional master batch adopts tetrabromobisphenol A di(2,3-dibromopropyl) ether in multiple composite coating as main body flame retardant, and comprises the followingcomponents in percentage by mass: 55.0-70.0wt.% of tetrabromobisphenol A di(2,3-dibromopropyl) ether in multiple composite coating, 15.0-30.0wt.% of antimonous oxide, 7.0-10.0wt.% of high-flowabilitypolypropylene, 2.0-4.0wt.% of atactic polypropylene, 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. Comparedwith a conventional flame-retardant functional master batch, the functional master batch provided by the invention is capable of remarkably improving the thermal stability of brominated flame retardant, effectively reducing material yellowing phenomena in the thermal mechanical processing process, and improving the flame retardance effect of domestic brominated flame retardant on polypropylene.

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 polypropylene modification and a preparation method thereof. Background technique [0002] Polypropylene is a general-purpose plastic with an extremely wide range of uses. Because its limiting oxygen index is only 18.0 vol.%, it is an extremely flammable polymer material. When it is used in the field of electronic and electrical manufacturing, it needs to implement high-level flame retardancy (up to UL94 V-0 level) to improve its safety in use. The flame retardant modification of polypropylene can be realized by adding flame retardant and melt blending through twin-screw extruder. Flame retardants can prevent plastics from being ignited and inhibit flame propagation, which can effectively improve the combustion resistance of plastics. According to the classification of flame retardant elem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L25/12C08L27/18C08K9/10C08K5/06C08K3/22C08K5/09C08K5/20C08K13/06C08J3/22
CPCC08J3/226C08J2423/12C08J2425/12C08J2427/18C08J2323/12C08K9/10C08K5/06C08K3/2279C08K7/24C08K5/09C08K5/20C08K13/06
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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