Special halogen-free flame-retardant synergistic functional masterbatch for polyolefin resin modification and preparation method thereof

A technology of polyolefin resin and functional masterbatch, applied in the field of plastic modification processing, can solve the problems of flame retardant efficiency and physical and mechanical decline, large loss of flame retardant performance, weak interface adhesion, etc., and achieve excellent pre-dispersion effect, Advantages Flame retardant properties, high surface charge density effect

Active Publication Date: 2019-12-24
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 address the strong hygroscopicity, poor thermal stability, and interfacial bonding of ammonium polyphosphate in the application process of halogen-free flame-retardant polyolefin resin modification. Application defects such as weak resistance, large loss of flame retardant performance, low fluidity, poor dispersibility, etc., as well as problems such as thermal degradation caused by powder friction during twin-screw direct blending extrusion processing, resulting in flame retardant performance and physical and mechanical decline. At the same time, it overcomes the defect that the traditional polymer or inorganic wall material can not provide enough protection for single-layer coating of ammonium polyphosphate. Then it is mixed with the corresponding flame retardant synergist and auxiliary agent at low temperature to prepare a halogen-free flame retardant synergistic functional masterbatch for polyolefin resin halogen-free flame retardant modification

Method used

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  • Special halogen-free flame-retardant synergistic functional masterbatch for polyolefin resin modification and preparation method thereof
  • Special halogen-free flame-retardant synergistic functional masterbatch for polyolefin resin modification and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Multiple compound coated ammonium polyphosphate 65.0kg Melamine cyanurate 25.0 kg High Flow Polypropylene 5.0 kg Atactic polypropylene 3.0 kg Styrene-acrylonitrile copolymer coated PTFE 1.0 kg stearic acid 500.0 g Ethylene bis stearamide 500.0 g

[0035] The preparation method of the multi-composite-coated ammonium polyphosphate used in the above-mentioned polyolefin resin modified special-purpose halogen-free flame-retardant synergistic functional masterbatch is as follows:

[0036] Add 230 L of absolute ethanol, 120 kg of ammonium polyphosphate, 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, then add mass Ammonia water with a percentage content of 10.0 wt.%, and the pH value of the reaction solution is controlled at 7.5 to 8.5 to promote the sol-gel reaction between the aluminum sol and the zinc oxide sol....

Embodiment 2

[0040] Multiple compound coated ammonium polyphosphate 55.0 kg Melamine cyanurate 35.0 kg High Flow Polypropylene 5.0 kg Atactic polypropylene 3.2kg Styrene-acrylonitrile copolymer coated PTFE 500.0 g Oleamide 1.0 kg polyethylene wax 300.0 g

[0041] The preparation method of the multi-composite-coated ammonium polyphosphate used in the above-mentioned polyolefin resin modified special-purpose halogen-free flame-retardant synergistic functional masterbatch is as follows:

[0042] Add 230L of absolute ethanol, 120kg of ammonium polyphosphate, 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 add the mass percentage content dropwise at an even speed 11.5 wt.% ammonia water, and the pH value of the reaction solution was controlled at 7.5 to 8.5 to promote the sol-gel reaction between the aluminum sol and the zinc ...

Embodiment 3

[0045] Multiple compound coated ammonium polyphosphate 60.0kg Melamine cyanurate 29.0kg High Flow Polypropylene 7.0kg Atactic polypropylene 2.0 kg Styrene-acrylonitrile copolymer coated PTFE 700.0 g Zinc stearate 1.0 kg Polydimethylsiloxane 300.0 g

[0046] The preparation method of the multi-composite-coated ammonium polyphosphate used in the above-mentioned polyolefin resin modified special-purpose halogen-free flame-retardant synergistic functional masterbatch is as follows:

[0047] Add 230 L of absolute ethanol, 120 kg of ammonium polyphosphate, 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 evenly and add to 37°C, and then dropwise add mass Ammonia water with a percentage content of 12.5 wt.%, and the pH value of the reaction solution was controlled at 7.5 to 8.5 to promote the sol-gel reaction between the aluminum sol and the zin...

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Abstract

The invention relates to the technical field of plastic modification processing, in particular to special halogen-free flame-retardant synergistic functional masterbatch for polyolefin resin modification and a preparation method thereof. According to the functional masterbatch, multiple composite coated ammonium polyphosphate is used as a phosphorus-based flame retardant; the functional masterbatch is prepared from the following components in percentage by mass: 55.0-65.0 wt.% of the multiple composite coated ammonium polyphosphate, 25.0-35.0 wt.% of a nitrogen flame retardant, 7.0-11.0 wt.% of carrier resin, 0.5-1.0 wt.% of styrene-acrylonitrile copolymer coated polytetrafluoroethylene, 0.5-1.0 wt.% of a dispersing agent and 0.3-0.5 wt.% of a lubricating agent. Compared with the traditional flame-retardant functional masterbatch, the functional masterbatch prepared by the invention has the advantages that the thermal stability of ammonium polyphosphate is remarkably improved, and thewater resistance of the ammonium polyphosphate is enhanced, so that the flame-retardant effect of the ammonium polyphosphate on polyolefin resin is more effectively improved.

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 polyolefin resin modification and a preparation method thereof. Background technique [0002] Polyolefin resin is the most widely used general-purpose plastic in the world. Since polyolefin resin is an extremely flammable plastic, it is often necessary to implement flame-retardant modification when it is used in household appliances, industrial electronic appliances, and automobiles. to improve its safety. Flame retardant modification of plastics can be achieved by adding flame retardants and melt blending through a twin-screw extruder. Flame retardants can prevent polyolefin resin plastics from being ignited and inhibit flame propagation, which can effectively improve their combustion resistance. According to the classification of flame retardant elements, flame retardants can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L27/18C08L25/12C08K13/06C08K9/10C08K3/32C08K5/3492C08J3/22
CPCC08J3/226C08J2423/12C08J2427/18C08J2425/12C08J2323/12C08J2423/06C08J2323/06C08K13/06C08K9/10C08K2003/323C08K5/34928
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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