Sulfo group-containing polyphenyl silicon boron flame retardant and preparation method thereof

A polyphenylsilicon boron, sulfonic acid group-containing technology, applied in the field of polymer flame retardant, can solve the problems of poor compatibility, uneven dispersion, difficult mixing and the like

Active Publication Date: 2021-04-20
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

[0005] Another object of the present invention is to provide a polyphenyl silicon boron flame retardant containing sulfonic acid groups, which is grafted and copolymerized by sulfonate, boron and silicon The synergistic flame retardant effect of the compound, which has a better synergistic effect, solves the problems of difficult mixing, poor compatibility and uneven dispersion

Method used

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

Examples

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Effect test

Embodiment 1

[0031] A preparation method of polyphenyl silicon boron flame retardant containing sulfonic acid groups, comprising the steps of:

[0032] (S1), uniformly mix phenylsiloxane monomer, silane coupling agent and trimethyl borate in a weight ratio of 45:35:35 to obtain a mixed solution;

[0033] (S2), raising the temperature of the mixed solution to 45°C, adding 35 parts by weight of an acidic aqueous solution dropwise to 100 parts by weight of the mixed solution while stirring, and the dropping time continued for 3 hours to obtain a reaction solution;

[0034] (S3), adding 30 parts of a p-styrenesulfonate mixture containing an initiator to the reaction solution while stirring, raising the temperature to 80°C for 3 hours, and then vacuuming to remove impurities to obtain grafted p-styrenesulfonic acid Salt polyphenyl silicon boron solid resin;

[0035] (S4), drying and pulverizing the polyphenylsilicon boron solid resin grafted with p-styrene sulfonate, and passing through a 800 ...

Embodiment 2

[0042] A preparation method of polyphenyl silicon boron flame retardant containing sulfonic acid groups, comprising the steps of:

[0043] (S1), uniformly mix phenylsiloxane monomer, silane coupling agent and trimethyl borate in a weight ratio of 30:20:20 to obtain a mixed liquid;

[0044] (S2), raising the temperature of the mixed solution to 30°C, adding 20 parts by weight of an acidic aqueous solution dropwise to 100 parts by weight of the mixed solution while stirring, and the dropping time continued for 3 hours to obtain a reaction solution;

[0045] (S3), adding 20 parts of p-styrenesulfonate mixture containing initiator to the reaction liquid while stirring, raising the temperature to 70°C for 2 hours, and then vacuuming to remove impurities to obtain grafted p-styrenesulfonic acid Salt polyphenyl silicon boron solid resin;

[0046] (S4), drying and pulverizing the polyphenylsilicon boron solid resin grafted with p-styrene sulfonate, and passing through a 800 mesh sieve ...

Embodiment 3

[0053] A preparation method of polyphenyl silicon boron flame retardant containing sulfonic acid groups, comprising the steps of:

[0054] (S1), uniformly mix phenylsiloxane monomer, silane coupling agent and trimethyl borate in a weight ratio of 60:50:50 to obtain a mixed liquid;

[0055] (S2), raising the temperature of the mixed solution to 60°C, adding 50 parts by weight of an acidic aqueous solution dropwise to 100 parts by weight of the mixed solution while stirring, and the dropping time lasts for 3 hours to obtain a reaction solution;

[0056] (S3), adding 40 parts of a p-styrenesulfonate mixture containing an initiator to the reaction solution while stirring, raising the temperature to 90°C for 4 hours, and then vacuuming to remove impurities to obtain grafted p-styrenesulfonic acid Salt polyphenyl silicon boron solid resin;

[0057] (S4), drying and pulverizing the polyphenylsilicon boron solid resin grafted with p-styrene sulfonate, and passing through a 800 mesh s...

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Abstract

The invention relates to the technical field of polymer flame retardance, in particular to a sulfonyl-containing polyphenyl silicon boron flame retardant and a preparation method thereof. The preparation method of the sulfonyl-containing polyphenyl silicon boron flame retardant comprises the steps that a phenyl siloxane monomer, a silane coupling agent and trimethyl borate are mixed according to a specific weight ratio, and subjected to ahydrolytic polycondensation reaction under an acidic condition, and graft copolymerization is carried out on p-styrenesulfonate, so that the formed sulfo-group-containing polyphenyl silicon boron flame retardant is a polymer, has a better flame-retardant synergistic effect, improves the flame-retardant effect, has better compatibility with polycarbonate and is not easy to migrate, thereby having good long-acting flame retardancy; and the preparation method is simple to operate, convenient to control, high in production efficiency and low in production cost, 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 polyphenyl silicon boron flame retardant containing sulfonic acid groups 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] Some organic groups can endow siloxane with more special properties, and the introduction of sulfonate can endow polysiloxane with catalytic flame-retardant effect on PC. Organic sulfonates such as diphenyl sulfone sulfonate (KSS), which are now available in industrial applications, have good catalytic and flame-retardant effects on PC, but they are small molecules, lack physical entanglement with PC, and are easy to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F283/00C08F212/14C08L69/00C08L51/08
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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