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A kind of polycarbonate base composite material and its preparation method and application

A polycarbonate and composite material technology, applied in the field of material modification, can solve the problems of decreased toughness, poor light-yellowing resistance of plastic parts, and poor thermal deformation resistance.

Active Publication Date: 2021-04-13
BULL GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light yellowing resistance of plastic parts made of polycarbonate-based composite materials is still not very good, and there are problems of decreased toughness and poor thermal deformation resistance.

Method used

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  • A kind of polycarbonate base composite material and its preparation method and application
  • A kind of polycarbonate base composite material and its preparation method and application
  • A kind of polycarbonate base composite material and its preparation method and application

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preparation example Construction

[0050] Such as figure 1 As shown, the embodiment of the present invention also provides a preparation method of a polycarbonate-based composite material, the preparation method of the polycarbonate-based composite material comprises:

[0051] The polycarbonate that the prescription of above-mentioned polycarbonate-based composite material at least includes, ultraviolet absorbing material, silicon series toughening agent and PMMA / nanometer SiO 2 The core-shell structure toughening agent is melted and plasticized to obtain polycarbonate-based composite materials.

[0052] Compared with the prior art, the beneficial effect of the preparation method of the polycarbonate-based composite material provided by the embodiment of the present invention is the same as that of the polycarbonate-based composite material provided by the above-mentioned embodiment, and will not be repeated here.

[0053] Specifically, such as figure 1 As shown, the formula of the polycarbonate-based composi...

Embodiment 1

[0071] The formula used in the polycarbonate-based composite material provided in this embodiment includes polycarbonate (Covestro PC2800), silicon-propylene rubber toughening agent, PMMA / nanometer SiO 2 Type core-shell structure toughening agent, UV absorber TINUVIN 360, light stabilizer Uvinul 4050H, UV absorber TINUVIN 1600, FR-Si9805 organic silsesquioxane flame retardant, antioxidant 1010, antioxidant IRGANOX PS 802 The mass ratio of FD, titanium dioxide, EBS micronized wax lubricant P-400 and toner is 89.6:2:1.5:1:1.2:0.5:0.2:0.3:0.3:2:0.4:1. The PMMA / nano-SiO 2 The type core-shell structure toughening agent is obtained in the following way: 100g of alkylated nano-silica is added to 3000mL of 95% ethanol aqueous solution, and then 45g of polyvinylpyrrolidone is added thereto, and dispersed uniformly by ultrasonic, Get the premix. Put the premix into a sealed reaction kettle, and feed nitrogen into the reaction kettle. The reactor was heated with an oil bath and the pr...

Embodiment 2

[0074] The formula used in the polycarbonate-based composite material provided in this embodiment includes polycarbonate (Covestro PC2800), silicon-propylene rubber toughening agent, PMMA / nanometer SiO 2 Type core-shell structure toughening agent, UV absorber TINUVIN 360, light stabilizer Uvinul 4050H, UV absorber TINUVIN 1600, FR-Si9805 organic silsesquioxane flame retardant, antioxidant 1010, antioxidant IRGANOX PS 802 The mass ratio of FD, titanium dioxide, EBS micronized wax lubricant P-400 and toner is 80.5:4:2.5:2:2:1:2:0.8:0.8:2:0.4:1. The PMMA / nano-SiO 2 The type core-shell structure toughening agent is obtained in the following way: 100g of alkylated nano-silica is added to 3000mL of 95% ethanol aqueous solution, and then 45g of polyvinylpyrrolidone is added thereto, and dispersed uniformly by ultrasonic, Get the premix. Put the premix into a sealed reaction kettle, and feed nitrogen into the reaction kettle. The reactor was heated with an oil bath and the premix w...

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Abstract

The invention discloses a polycarbonate-based composite material and its preparation method and application, and relates to the technical field of material modification to improve the light yellowing resistance, low-temperature toughness and toughness of plastic parts made of polycarbonate in long-term ultraviolet light environments. Structural strength and maintain good thermal deformation resistance of PC materials. The polycarbonate-based composite material is prepared using the following formula; the formula includes at least polycarbonate, ultraviolet absorber, silicon-based toughening agent and PMMA / nanometer SiO 2 Toughener for core-shell structure. The preparation method of the polycarbonate-based composite material is used to prepare the above-mentioned polycarbonate-based composite material. The polycarbonate-based composite material provided by the invention and its preparation method and application in anti-yellowing plastic parts.

Description

technical field [0001] The invention relates to the technical field of material modification, in particular to a polycarbonate-based composite material and its preparation method and application. Background technique [0002] Bisphenol A polycarbonate (Polycarbonate, abbreviated as PC) is a thermoplastic resin prepared by transesterification of bisphenol A and diphenyl carbonate or polycondensation reaction with phosgene (chlorine carbonate). Polycarbonate has good heat resistance, flame retardancy and excellent mechanical properties, making polycarbonate often used in plastic parts of electrical products such as wall switches, converters, LED downlights and digital products. [0003] When the color of the plastic part of the electrical product made of polycarbonate is white, the plastic part made of polycarbonate will have obvious light yellowing problem after long-term use in the ultraviolet environment. [0004] In order to improve the problem of obvious light yellowing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L33/12C08L33/04C08L83/04C08K9/04C08K3/36C08K5/3475C08K5/3492
CPCC08K2201/011C08L69/00C08L2201/08C08L33/12C08L33/04C08L83/04C08K9/04C08K3/36C08K5/3475C08K5/3492
Inventor 何洋申会员孔德玉李洋洋邵景昌
Owner BULL GRP CO LTD
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