Preparation method of hard hydrophobic polycarbonate material

A polycarbonate and hydrophobic technology, applied in the field of materials, can solve the problems of low surface hydrophobicity, poor impact resistance, low hardness, etc., and achieve the effect of improving compatibility, improving stability and strength, and increasing contact angle

Pending Publication Date: 2017-11-28
谢泳江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the increasing application of composite materials, the requirements for materials are getting higher and higher. Polycarbonate is light in weight and has good weather resistance, but its surface has low hydrophobicity and low hardness. damage, poor impact resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of hard hydrophobic polycarbonate material, comprises the following steps:

[0020] (1) Get the calcium stearate of 3 weight parts, the barium stearate of 2 weight parts mix, join in the deionized water of 7 times of compound weight, add the saturated octadecylamide of 1 weight part, stir, obtain Amide dispersion;

[0021] (2) Take 14 parts by weight of graphene oxide, add it to 8 times the weight of pentaerythritol, add 3 parts by weight of dodecafluoroheptylpropyltrimethoxysilane, increase the temperature to 70 ° C, and keep stirring for 2 hours , add dropwise 25 parts by weight of sulfuric acid with a concentration of 60-70%, and after the dropwise addition, add it to polyvinylpyrrolidone that is 4 times the weight of the mixture, raise the temperature to 86-90°C, heat and stir for 2 hours, and discharge , cooled to normal temperature to obtain an alkyl esterified graphene oxide solution;

[0022] (3) get 3 weight parts of sorbitan mono...

Embodiment 2

[0028] (1) get the calcium stearate of 2 weight parts, the barium stearate of 1 weight part mix, join in the deionized water of 4 times of weight of compounding material, add the saturated octadecylamide of 0.6 weight part, stir, obtain Amide dispersion;

[0029] (2) Take 10 parts by weight of graphene oxide, add it to 5 times the weight of pentaerythritol, add 2 parts by weight of dodecafluoroheptylpropyltrimethoxysilane, increase the temperature to 60 ° C, and keep stirring for 1 hour , dropwise add 20 parts by weight of sulfuric acid with a concentration of 60%, after the dropwise addition is completed, add it to polyvinylpyrrolidone that is 3 times the weight of the mixture, raise the temperature to 86°C, heat and stir for 1 hour, discharge, and cool to normal temperature , to obtain an alkyl esterified graphene oxide solution;

[0030] (3) get 1 weight part of sorbitan monooleate, join in its weight 10-14 times THF, stir evenly, obtain ester dispersion liquid;

[0031] ...

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Abstract

The invention discloses a preparation method of a hard hydrophobic polycarbonate material. The invention mixes and disperses graphene with polycarbonate after organic treatment, effectively improves the compatibility between graphene and polymer matrix, and improves the To improve the stability and strength of the finished product, it is treated with dodecafluoroheptylpropyltrimethoxysilane to introduce fluoride ions to the surface of the polymer, which increases the contact angle between the polymer and water, and effectively improves the surface hydrophobicity of the finished material. performance.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a preparation method of a hard hydrophobic 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 industrialized. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. [0003] Polycarbonate is a strong thermoplastic resin that can be synthesized from bisphenol A and carbon oxychloride (COCl2). The method that is mostly used now is the melt transesterification method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L39/06C08K13/06C08K5/098C08K9/06C08K9/04C08K3/04C08K5/14
CPCC08L69/00
Inventor 谢泳江
Owner 谢泳江
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