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Special halogen-free flame-retardant synergistic masterbatch for modification of nylon resin and preparation method of halogen-free flame-retardant synergistic masterbatch

A functional masterbatch, flame retardant and synergistic technology, applied in the field of plastic modification processing, can solve the problems of weak interface adhesion, poor heat resistance and thermal stability, low fluidity, etc., and achieve enhanced compactness and structural stability. resistance, excellent heat resistance and thermal stability, the effect of increasing the thermal decomposition temperature

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

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the poor heat resistance and thermal stability, weak interfacial adhesion, and large loss of flame retardant properties of aluminum diethylphosphinate under high temperature conditions in the application process of halogen-free flame retardant nylon resin modification , low fluidity, poor dispersion and other application defects, as well as the thermal degradation caused by powder friction during the twin-screw direct blending extrusion process, resulting in flame retardant performance and physical and mechanical decline, while overcoming traditional polymers or Inorganic The single-layer coating of aluminum diethylphosphinate on the wall material cannot provide sufficient protection. Then it is mixed with the corresponding flame retardant synergist and additives through a continuous double-rotor internal mixer and extruded by a single-screw extruder to prepare a halogen-free flame-retardant special for nylon resin halogen-free flame-retardant modification. Synergistic functional masterbatch

Method used

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  • Special halogen-free flame-retardant synergistic masterbatch for modification of nylon resin and preparation method of halogen-free flame-retardant synergistic masterbatch
  • Special halogen-free flame-retardant synergistic masterbatch for modification of nylon resin and preparation method of halogen-free flame-retardant synergistic masterbatch
  • Special halogen-free flame-retardant synergistic masterbatch for modification of nylon resin and preparation method of halogen-free flame-retardant synergistic masterbatch

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A special halogen-free flame retardant synergistic functional masterbatch for nylon resin modification, the quality ratio of raw materials is as follows:

[0034] Multiple composite coated aluminum diethylphosphinate 65.0kg Anhydrous zinc borate 20.0kg Nylon 6 resin 10.0kg Four-arm star nylon 6 resin 3.0kg Styrene-acrylonitrile copolymer coated PTFE 1.0 kg Zinc stearate 500.0 g OP wax 500.0 g

[0035] The preparation method of the multi-compound coated aluminum diethylphosphinate used in the above-mentioned nylon resin modified special halogen-free flame retardant synergistic functional masterbatch is as follows:

[0036] Add 230 L of absolute ethanol, 120 kg of aluminum diethylphosphinate, 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 evenly and add to 40°C, and then Add dropwise ammonia water with a mass percentage of 10.0wt.%,...

Embodiment 2

[0039] A special halogen-free flame retardant synergistic functional masterbatch for nylon resin modification, the quality ratio of raw materials is as follows:

[0040] Multiple composite coated aluminum diethylphosphinate 55.0kg Anhydrous zinc borate 30.0kg Nylon 6 resin 8.5 kg Three-arm star nylon 6 resin 5.0 kg Styrene-acrylonitrile copolymer coated PTFE 500.0 g Aluminum stearate 700.0 g E wax 300.0 g

[0041] The preparation method of the multi-compound coated aluminum diethylphosphinate used in the above-mentioned nylon resin modified special halogen-free flame retardant synergistic functional masterbatch is as follows:

[0042] Add 230L of absolute ethanol, 120kg of aluminum diethylphosphinate, 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 evenly and add to 35°C, then drop at a uniform speed Add ammonia water with a mass percent...

Embodiment 3

[0045] A special halogen-free flame retardant synergistic functional masterbatch for nylon resin modification, the quality ratio of raw materials is as follows:

[0046] Multiple composite coated aluminum diethylphosphinate 60.0 kg Anhydrous zinc borate 28.0 kg Nylon 6 resin 8.0 kg Six-arm star nylon 6 resin 2.0 kg Styrene-acrylonitrile copolymer coated PTFE 700.0 g Magnesium stearate 1.0 kg Ethylene-vinyl acetate copolymer wax 300.0 g

[0047] The preparation method of the multi-compound coated aluminum diethylphosphinate used in the above-mentioned nylon resin modified special halogen-free flame retardant synergistic functional masterbatch is as follows:

[0048] Add 230 L of absolute ethanol, 120 kg of aluminum diethylphosphinate, 7.5 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 37°C, and then Quickly add ammonia water...

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Abstract

The invention relates to the technical field of modification and processing of plastics, in particular to special halogen-free flame-retardant synergistic masterbatch for modification of nylon resin and a preparation method of the halogen-free flame-retardant synergistic masterbatch. Multiple-compounded coated aluminum diethylphosphinate is adopted as a phosphorous-based flame retardant of the functional masterbatch, and the functional masterbatch comprises the compositions: in percent by mass, 55.0-65.0% of multiple-compounded coated aluminum diethylphosphinate, 20.0-30.0% of anhydrous zinc borate, 8.0-10.0% of nylon 6 resin, 3.0-5.0% of star-shaped nylon, 0.5-1.0% of styrene-acrylonitrile copolymer-coated polytetrafluoroethylene, 0.5-1.0% of a dispersant and 0.3-0.5% of a lubricant. Whenthe prepared functional masterbatch is compared with traditional flame-retardant functional masterbatch, the heat resistance and thermal stability of aluminum diethylphosphinate are improved significantly, aluminum diethylphosphinate is adaptive to a high processing temperature of nylon resin, so that the flame retardant effect of aluminum diethylphophinate on nylon resin is improved more effectively.

Description

technical field [0001] The invention relates to the technical field of plastic modification processing, in particular to a special halogen-free flame retardant synergistic functional masterbatch for nylon resin modification and a preparation method thereof. Background technique [0002] Nylon resin, as an important class of engineering plastics, is widely used in the fields of mechanical equipment, household appliances, industrial electronic appliances, automobiles and other vehicles. When nylon resin is used in the electrical and electronic fields, it is often necessary to implement flame retardant modification to improve its safety in use. The flame retardant modification of engineering plastics can be realized by adding flame retardants and melt blending through a twin-screw extruder. Flame retardants can prevent engineering plastics from being ignited and inhibit flame propagation, which can effectively improve the combustion resistance of plastics. According to the cl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/06C08L77/02C08L27/18C08L25/12C08K13/06C08K9/10C08K5/5313C08K3/38C08K5/098C08J3/22
CPCC08J3/226C08J2377/00C08J2377/02C08J2377/06C08J2477/02C08J2427/18C08J2425/12C08K13/06C08K9/10C08K5/5313C08K5/098C08K2003/387
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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