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Polycarbonate/poly(bisphenol sulfone phenyl phosphonate) flame-retarding material and preparation method

A technology of polyphenylphosphonic acid diphenyl sulfone ester and diphenyl carbonate is applied in the field of polycarbonate/polyphenylphosphonic acid diphenyl sulfone ester flame retardant materials and preparation, and can solve the problems of poor interface compatibility and mechanical properties. The problems of lowering, unsatisfactory dispersion flame retardant effect, etc., achieve the effects of good compatibility, improved oxygen index, and good comprehensive mechanical properties

Inactive Publication Date: 2019-03-29
成都其其小数科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that the additive flame retardant has the problem of unsatisfactory flame retardant effect due to uneven dispersion in polycarbonate, and the problem of decreased mechanical properties due to poor interfacial compatibility

Method used

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  • Polycarbonate/poly(bisphenol sulfone phenyl phosphonate) flame-retarding material and preparation method
  • Polycarbonate/poly(bisphenol sulfone phenyl phosphonate) flame-retarding material and preparation method
  • Polycarbonate/poly(bisphenol sulfone phenyl phosphonate) flame-retarding material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Add bisphenol A to the mixed solvent of dichloromethane and deionized water, then add excess diphenyl carbonate and sodium tetraphenylborate, stir for 17 minutes, then stand for 7 minutes to separate layers, take the oil phase and add methanol, Filter again, dry, make polycarbonate oligomer; The mol ratio of bisphenol A and diphenyl carbonate is 1:1.03; 0.7%;

[0033] (2) Mix phenylphosphonic dichloride with excess bisphenol S, add catalyst, heat up to 146°C for 34 minutes under nitrogen protection, then heat up to 228°C for 68 minutes, then cool and grind to obtain polyphenylphosphine acid diphenyl sulfone ester oligomer; the molar ratio of phenylphosphonic dichloride and bisphenol S is 1:1.26; the catalyst is antimony trioxide; the added weight of the catalyst is the weight sum of phenylphosphonic dichloride and bisphenol S 0.5% of

[0034] (3) Disperse the polycarbonate oligomer prepared in step (1) and the polyphenylsulfone disulfone phosphonate oligomer prepa...

Embodiment 2

[0036] (1) Add bisphenol A to the mixed solvent of dichloromethane and deionized water, then add excess diphenyl carbonate and sodium tetraphenylborate, stir for 16 minutes, then stand for 6 minutes to separate layers, take the oil phase and add methanol, Filter again, dry, make polycarbonate oligomer; The mol ratio of bisphenol A and diphenyl carbonate is 1:1.03; 0.6%;

[0037](2) Mix phenylphosphonic dichloride with excess bisphenol S, add catalyst, heat up to 142°C for 38 minutes under nitrogen protection, then heat up to 225°C for 75 minutes, then cool and grind to obtain polyphenylphosphine Acid diphenylsulfone ester oligomer; the molar ratio of phenylphosphonic dichloride and bisphenol S is 1:1.22; the catalyst is antimony acetate; the weight of the catalyst added is 0.4 of the weight sum of phenylphosphonic dichloride and bisphenol S %;

[0038] (3) Disperse the polycarbonate oligomer prepared in step (1) and the polyphenylsulfone disulfone phosphonate oligomer prepar...

Embodiment 3

[0040] (1) Add bisphenol A to the mixed solvent of dichloromethane and deionized water, then add excess diphenyl carbonate and sodium tetraphenylborate, stir for 19 minutes, then stand for 9 minutes to separate layers, take the oil phase and add methanol, Filter again, dry, make polycarbonate oligomer; The mol ratio of bisphenol A and diphenyl carbonate is 1:1.04; 0.7%;

[0041] (2) Mix phenylphosphonic dichloride with excess bisphenol S, add catalyst, raise the temperature to 148°C for 32 minutes under the protection of nitrogen, then raise the temperature to 235°C for 65 minutes, then cool and grind to obtain polyphenylphosphine Acid diphenyl sulfone ester oligomer; the molar ratio of phenylphosphonic dichloride and bisphenol S is 1:1.28; the catalyst is antimony trioxide; the added weight of the catalyst is the weight sum of phenylphosphonic dichloride and bisphenol S 0.5% of

[0042] (3) Disperse the polycarbonate oligomer prepared in step (1) and the polyphenylsulfone d...

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Abstract

The invention relates to the technical field of flame-retarding polymer materials and provides a polycarbonate / poly(bisphenol sulfone phenyl phosphonate) flame-retarding material and a preparation method. The method includes: synthesizing a polycarbonate oligomer with bisphenol A and diphenyl carbonate; synthesizing a poly(bisphenol sulfone phenyl phosphonate) oligomer with phenylphosphonic dichloride and bisphenol S; then performing block copolymerization on the polycarbonate oligomer and the poly(bisphenol sulfone phenyl phosphonate) oligomer to make the polycarbonate / poly(bisphenol sulfonephenyl phosphonate) flame-retarding material. In the preparation method, with the poly(bisphenol sulfone phenyl phosphonate) being a reactive flame retardant, the problems that an additive flame retardant is poor in flame-retarding effect due to non-uniform dispersion and reduced in mechanical performance due to poor interfacial compatibility.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant polymer materials, and provides a polycarbonate / polyphenylsulfone diphenylphosphonate flame-retardant material and a preparation method thereof. Background technique [0002] As one of the five major engineering plastics, polycarbonate has been widely used in electronic appliances, automobiles and other fields, and is rapidly developing into aviation, aerospace, computer and other fields. However, polycarbonate cannot meet the strict flame-retardant requirements in practical applications, and further flame-retardant treatment is required. Therefore, the development and application of flame-retardant polycarbonate has attracted widespread attention. [0003] Flame retardant polycarbonate is mainly achieved by adding flame retardants to polycarbonate polymers or introducing elements such as bromine, phosphorus, and silicon during polymer synthesis to achieve the purpose of flame retardant mo...

Claims

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Application Information

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IPC IPC(8): C08G64/42C08G64/18
CPCC08G64/18C08G64/42
Inventor 蒋涛
Owner 成都其其小数科技有限公司
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