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A special halogen-free flame retardant synergistic functional masterbatch for polycarbonate resin modification and its preparation method

A polycarbonate resin and functional masterbatch technology, applied in the field of plastic modification processing, can solve the problems of weak interfacial adhesion, low fluidity, flame retardant efficiency and physical and mechanical decline, and achieve enhanced compactness and structural stability. The effect of improving thermal decomposition temperature and excellent thermal stability

Active Publication Date: 2022-04-22
江苏万纳普新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to: Poor high-temperature thermal stability, weak interfacial cohesion, large loss of flame-retardant performance, and poor fluidity of potassium 3-benzenesulfonylbenzenesulfonate in the application process of halogen-free flame-retardant polycarbonate resin modification. Low, 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, the present invention proposes a flame-retardant The synergistic and dense wall material performs multiple composite coatings on 3-benzenesulfonylbenzenesulfonate potassium, and then it is mixed with the corresponding flame retardant synergist and additives at low temperature to prepare polycarbonate resin halogen-free Halogen-free flame retardant synergistic functional masterbatch for flame retardant modification

Method used

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  • A special halogen-free flame retardant synergistic functional masterbatch for polycarbonate resin modification and its preparation method
  • A special halogen-free flame retardant synergistic functional masterbatch for polycarbonate resin modification and its preparation method
  • A special halogen-free flame retardant synergistic functional masterbatch for polycarbonate resin modification and its preparation method

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Effect test

Embodiment 1

[0031] A kind of polycarbonate resin modified special halogen-free flame retardant efficiency-enhancing function masterbatch, raw material quality with the following:

[0032]

[0033] The preparation method of the multi-composite coated potassium 3-benzenesulfonylbenzenesulfonate used in the above-mentioned polycarbonate resin modified special halogen-free flame retardant and synergistic masterbatch is as follows:

[0034] To the enamel reactor with stirring and temperature control device was added 230L of absolute ethanol, 120kg 3-benzenesulfonylbenzenesulfonate potassium, 7kg aluminum sol, 1kg zinc oxide sol, stirred evenly and added to 40 °C, and then added at average speed dropwise the ammonia with a mass percentage content of 10.0wt.%, and the pH of the reaction liquid was controlled at 7.5 to 8.5, promoting the sol-gel reaction of the aluminum sol and zinc oxide sol, after the completion of the drop, continue to stir for 3.5 hours to end the reaction; then wash and filter w...

Embodiment 2

[0037] A kind of polycarbonate resin modified special halogen-free flame retardant efficiency-enhancing function masterbatch, raw material quality with the following:

[0038]

[0039] The preparation method of the multi-composite coated potassium 3-benzenesulfonylbenzenesulfonate used in the above-mentioned polycarbonate resin modified special halogen-free flame retardant and synergistic masterbatch is as follows:

[0040] To the enamel reactor with stirring and temperature control device was added 230L of absolute ethanol, 120kg of 3-benzenesulfonylbenzenesulfonate potassium, 8kg aluminum sol, 1.5kg zinc oxide sol, stirred evenly and added to 35 ° C, and then added at average speed dropwise ammonia with a mass percentage content of 11.5wt.%, and the pH of the reaction liquid was controlled at 7.5 ~ 8.5, prompting the sol-gel reaction of the aluminum sol and zinc oxide sol, after the completion of the drop, continue to stir for 4h to end the reaction; then wash and filter with ...

Embodiment 3

[0043] A kind of polycarbonate resin modified special halogen-free flame retardant efficiency-enhancing function masterbatch, raw material quality with the following:

[0044]

[0045] The preparation method of the multi-composite coated potassium 3-benzenesulfonylbenzenesulfonate used in the above-mentioned polycarbonate resin modified special halogen-free flame retardant and synergistic masterbatch is as follows:

[0046] To the enamel reactor with stirring and temperature control device was added 230L of absolute ethanol, 120kg 3-benzenesulfonylbenzenesulfonate potassium, 7.5kg aluminum sol, 2kg zinc oxide sol, stirred evenly and added to 37 °C, and then added at average speed dropwise ammonia with a mass percentage content of 12.5wt.%, and the pH of the reaction solution was controlled at 7.5 to 8.5, so as to promote the sol-gel reaction of the aluminum sol and zinc oxide sol, after the completion of the drop,continue to stir for 4 hours to end the reaction; then washed and ...

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Abstract

The invention relates to the technical field of plastic modification processing, in particular to a special halogen-free flame-retardant synergistic functional masterbatch for polycarbonate resin modification and a preparation method thereof; Inorganic flame retardant, its mass percentage composition is as follows: multiple composite coating potassium 3-benzenesulfonylbenzenesulfonate 10.0-15.0 wt.%, methyl methacrylate-butadiene-styrene terpolymer (MBS) 75.0-80.0 wt.%, polyphenylmethylsiloxane 3.0-5.0 wt.%, organic phosphate 2.0-3.0 wt.%, styrene-acrylonitrile copolymer coated polytetrafluoroethylene 2.0-3.0 wt. %, lubricant 0.3~0.5 wt.%; compared with the traditional flame-retardant functional masterbatch, the functional masterbatch prepared by the present invention significantly improves the heat resistance and thermal stability of potassium 3-benzenesulfonylbenzenesulfonate, It effectively protects the benzenesulfonic acid functional group that plays a flame-retardant role, making it suitable for the high processing temperature required by polycarbonate resins, and more effectively improving the flame-retardant properties of potassium 3-benzenesulfonylbenzenesulfonate on polycarbonate resins Effect.

Description

Technical field [0001] The present invention relates to the field of plastic modified processing technology, in particular a polycarbonate resin modified special halogen-free flame retardant synergistic masterbatch and preparation method thereof. Background [0002] As an important engineering plastic, polycarbonate is widely used in industrial and household electronic appliances, automotive and rail transit vehicle interiors and other fields. However, applications in these areas often require polycarbonate parts and components to have high flame retardant properties and make them fire-safe. Flame retardant modification of polycarbonate can be achieved by adding flame retardants and melting and blending by a 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 elements, flame retardants can generally be di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L83/04C08L51/04C08L27/18C08L25/12C08K13/06C08K9/10C08K5/103C08K5/42C08K5/523C08J3/22
CPCC08J3/226C08J2369/00C08J2483/04C08J2451/04C08J2427/18C08J2425/12C08K13/06C08K9/10C08K5/103C08K5/42C08K5/523
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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