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Preparation method of flame-retardant polycarbonate material

A technology of flame-retardant polycarbonate and oligomers, which is applied in the field of materials, can solve the problems of reducing the stability of finished products and poor compatibility, and achieve the effects of improving stability, strength, flame-retardant and fire-proof performance, and improving dispersibility

Inactive Publication Date: 2017-09-26
陈涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility of traditional inorganic flame retardants with polyester matrix is ​​poor, which easily reduces the stability of finished products

Method used

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  • Preparation method of flame-retardant polycarbonate material

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Embodiment 1

[0017] A preparation method of an oligomer flame-retardant polycarbonate material, comprising the following steps:

[0018] (1) Get the polysorbate 80 of 1 weight part, join in the deionized water of its weight 20 times, stir evenly;

[0019] (2) Get 6 parts by weight of methylbenzoic acid and 2 parts by weight of antimony trioxide and mix them, heat and stir at 60°C for 20 minutes, add 6 parts by weight of perfluoroalkyl ethyl alcohol, and raise the temperature to 90 ℃, heat-preserved and stirred for 40 minutes, added to the aqueous solution of polysorbate 80, and ultrasonicated for 2 minutes to obtain an esterified dispersion;

[0020] (3) Take 1-3 parts by weight of ammonium polyphosphate, add it to 20 times the weight of deionized water, stir evenly, mix with the above-mentioned esterification dispersion, add dropwise 17 parts by weight of formaldehyde solution with a concentration of 13% , after the dropwise addition, the temperature was raised to 70°C, and the temperatu...

Embodiment 2

[0024] A preparation method of an oligomer flame-retardant polycarbonate material, comprising the following steps:

[0025] (1) Get the polysorbate 80 of 1 weight part, join in the deionized water of its weight 16 times, stir;

[0026] (2) Get 6 parts by weight of toluic acid and 1 part by weight of antimony trioxide and mix them, heat and stir at 50°C for 10 minutes, add 4 parts by weight of perfluoroalkyl ethyl alcohol, and raise the temperature to 80 ℃, heat-preserved and stirred for 30 minutes, added to the aqueous solution of polysorbate 80, and ultrasonicated for 1 minute to obtain an esterified dispersion;

[0027] (3) Take 1-3 parts by weight of ammonium polyphosphate, add it to 17 times the weight of deionized water, stir evenly, mix with the above-mentioned esterification dispersion, add dropwise 10 parts by weight of formaldehyde solution with a concentration of 10% , after the dropwise addition, the temperature was raised to 60°C, and the temperature was kept and ...

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Abstract

The invention discloses a preparation method of a flame-retardant polycarbonate material. Ammonium polyphosphate and antimonous oxide are mixed and dispersed into oligomer, so that the dispersibility of an inorganic flame-retardant aid in polymers is effectively improved, the stability of finished products is improved and the flame-retardant and waterproof properties of the finished products are improved.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a preparation method of an oligomer flame-retardant polycarbonate material. Background technique [0002] Polycarbonate is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics. At present, only aromatic polycarbonate has been produced industrially. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics; [0003] Its current development momentum is very rapid, and it is rapidly extending and integrating into computer manufacturing, aerospace, blue light and other industrial industrializ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L71/02C08K13/02C08K3/22C08K3/32C08K5/58
CPCC08L69/00C08K2003/323C08L2201/02C08L71/02C08K13/02C08K3/2279C08K3/32C08K5/58
Inventor 陈涛
Owner 陈涛
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