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Fluorine-containing polyphenyl silicon boron flame retardant and preparation method thereof

A technology of polyphenylsilicon boron and flame retardant, which is applied in the field of fluorine-containing polyphenylsilicon boron flame retardant and its preparation, and can solve the problems of small molecular weight, high addition amount, and insufficient flame retardant efficiency

Pending Publication Date: 2021-04-27
铨盛聚碳科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the problems of high addition amount and insufficient flame retardant efficiency
[0003] Potassium perfluorobutane sulfonate is a commonly used flame retardant for polycarbonate. It is often added to PC alone. bad

Method used

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  • Fluorine-containing polyphenyl silicon boron flame retardant and preparation method thereof
  • Fluorine-containing polyphenyl silicon boron flame retardant and preparation method thereof
  • Fluorine-containing polyphenyl silicon boron flame retardant and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A preparation method of fluorine-containing polyphenyl silicon boron flame retardant, comprising the steps of:

[0032] (A1), mix phenylsiloxane monomer, fluorine-containing silicone coupling agent, alkylsiloxane coupling agent and tripropyl borate in a weight ratio of 45:35:35:35 to obtain a coupling joint agent mixture;

[0033] (A2), the temperature of the coupling agent mixed solution is raised to 45°C, and 35 parts by weight of an acidic aqueous solution is added dropwise to 100 parts by weight of the described coupling agent mixed solution while stirring, the dropping time lasts for 3 hours, and the stirring is continued for 2.5 hours Afterwards, the temperature was raised to 85°C, and impurities were removed by vacuuming to obtain a transparent solid resin;

[0034] (A3) The transparent solid resin is dried, pulverized, and passed through an 800-mesh sieve to obtain the fluorine-containing polyphenyl silicon boron flame retardant.

[0035] The phenylsiloxane mo...

Embodiment 2

[0041] A preparation method of fluorine-containing polyphenyl silicon boron flame retardant, comprising the steps of:

[0042] (A1), mix phenylsiloxane monomer, fluorine-containing silicone coupling agent, alkylsiloxane coupling agent and tripropyl borate in a weight ratio of 30:20:20:20 to obtain a coupling joint agent mixture;

[0043] (A2), the temperature of the coupling agent mixed solution is raised to 30°C, and 20 parts by weight of an acidic aqueous solution is added dropwise to 100 parts by weight of the mixed solution of the coupling agent while stirring. The dropping time lasts for 3 hours, and after continuing to stir for 2 hours Raise the temperature to 80°C, vacuumize and remove impurities to obtain a transparent solid resin;

[0044] (A3) The transparent solid resin is dried, pulverized, and passed through an 800-mesh sieve to obtain the fluorine-containing polyphenyl silicon boron flame retardant.

[0045] The phenylsiloxane monomer is methylphenyldimethoxysi...

Embodiment 3

[0051] A preparation method of fluorine-containing polyphenyl silicon boron flame retardant, comprising the steps of:

[0052] (A1), mix phenylsiloxane monomer, fluorine-containing silicone coupling agent, alkylsiloxane coupling agent and tripropyl borate in a weight ratio of 60:50:50:50 to obtain a coupling joint agent mixture;

[0053] (A2), the temperature of the coupling agent mixture is raised to 60°C, and 50 parts by weight of an acidic aqueous solution is added dropwise to 100 parts by weight of the coupling agent mixture while stirring. Raise the temperature to 90°C, vacuumize and remove impurities to obtain a transparent solid resin;

[0054] (A3) The transparent solid resin is dried, pulverized, and passed through an 800-mesh sieve to obtain the fluorine-containing polyphenyl silicon boron flame retardant.

[0055] The phenylsiloxane monomer is methyldiphenylmethoxysilane.

[0056] The fluorine-containing siloxane coupling agent is heptafluoropentyltrimethoxysilane....

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Abstract

The invention relates to the technical field of polymer flame retardance, in particular to a fluorine-containing polyphenyl silicon boron flame retardant and a preparation method thereof. The preparation method comprises the steps that a phenyl siloxane monomer, a fluorine-containing siloxane coupling agent, an alkyl siloxane coupling agent and tripropyl borate are mixed according to a specific ratio and then subjected to a hydrolytic polycondensation reaction under an acidic condition. A formed high-molecular polymer has a better flame-retardant synergistic effect, improved flame-retardant effect, better compatibility with polycarbonate and better dispersity, and is not easy to migrate, so the high-molecular polymer has good long-acting flame retardance; and the preparation method is simple to operate, convenient to control, high in production efficiency and lower in energy consumption, and can be used for large-scale production.

Description

technical field [0001] The invention relates to the technical field of polymer flame retardant, in particular to a fluorine-containing polyphenyl silicon boron flame retardant and a preparation method thereof. Background technique [0002] The development of highly efficient flame retardants for thermoplastics and thermosets is a huge demand for many industrial applications, and silicone-based flame retardants are a key area of ​​development. However, it has the problems of high addition amount and insufficient flame retardant efficiency. [0003] Potassium perfluorobutane sulfonate is a commonly used flame retardant for polycarbonate. It is often added to PC alone. bad. Contents of the invention [0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a preparation method of fluorine-containing polyphenyl silicon boron flame retardant, which is coupled with phenylsiloxane monomer, fluorine-contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/56C08G77/00C08L69/00C08L83/14
CPCC08G77/56C08G77/00C08L69/00C08L2201/02C08L83/14
Inventor 王启瑶孙佳男陈杰马博
Owner 铨盛聚碳科技股份有限公司
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