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High-temperature-resistant and high-humidity-resistant flame-retardant PC plastic as well as preparation method and application thereof

A high-temperature and high-humidity resistant technology, applied in the field of engineering plastics, can solve problems such as fracture, and achieve the effects of improving high-temperature and high-humidity resistance, balancing acidity and alkalinity, and strong three-dimensional effect

Inactive Publication Date: 2020-05-08
中广核俊尔(浙江)新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the problem in the prior art that PC plastic products are prone to fracture due to high temperature and high humidity environment in the later stage, the present invention provides a high temperature and high humidity resistant flame retardant PC plastic

Method used

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  • High-temperature-resistant and high-humidity-resistant flame-retardant PC plastic as well as preparation method and application thereof
  • High-temperature-resistant and high-humidity-resistant flame-retardant PC plastic as well as preparation method and application thereof
  • High-temperature-resistant and high-humidity-resistant flame-retardant PC plastic as well as preparation method and application thereof

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Embodiment Construction

[0031] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The operating methods not indicated in the following examples are generally in accordance with conventional conditions, or in accordance with the conditions suggested by the manufacturer.

[0032] The performance test standards and methods are as follows:

[0033] Selection of pH buffer types: PC synthesis is an esterification reaction, which is prone to side reactions under strong acid and strong alkali conditions, resulting in a decrease in molecular weight and toughness. At the same time, the types and manufacturers of flame retardants, lubricants, antioxidants, etc. are different, and their blending will inevitably lead to fluctuations in the pH value of the system. Therefore, it is necessary to determine the pH value of ...

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Abstract

The invention discloses a high-temperature-resistant and high-humidity-resistant flame-retardant PC plastic as well as a preparation method and application thereof. The flame-retardant PC plastic is prepared from the following raw materials in parts by weight: 100 parts of PC resin, 0.001 to 0.1 part of a pH buffering agent, 1 to 7 parts of a toughening agent, 0.1 to 1 part of a lubricating agent,0.1 to 7 parts of a flame retardant, 0.1 to 1 part of an antioxidant and 0.1 to 10 parts of other auxiliary agents. The preparation method comprises the following steps: uniformly mixing all the rawmaterials in proportion, feeding the mixture into a double-screw extruder through main feeding, plasticizing, exhausting, plasticizing again, vacuumizing, decompressing, extruding and granulating to obtain the product. The high-temperature-resistant and high-humidity-resistant flame-retardant PC plastic is suitable for lighting electric appliances, photovoltaics, IT, mobile phones and the like.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a flame-retardant PC plastic resistant to high temperature and high humidity, a preparation method and application thereof. Background technique [0002] Polycarbonate (PC) is a linear polycarbonate and an amorphous engineering plastic with a large demand. It ranks second only to nylon among the five major engineering plastics. PC has good toughness, transparency, flame retardancy, heat resistance, low water absorption, and insulation. Although PC has good heat resistance, low saturated water absorption, and good electrical performance under humid conditions, PC is not good at high temperature and high humidity. PC is easy to degrade under high temperature and high humidity, causing PC fracture and flame retardancy to decrease. [0003] PC materials are widely used in lighting appliances, photovoltaics, IT, mobile phones and other industries. These components need t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L27/18C08L55/02C08L51/06C08K5/134C08K5/526C08K5/20C08K5/523C08K5/42C08K3/32C08K13/02
CPCC08L69/00C08K2003/324C08L2205/035C08L2205/03C08L2205/025C08L2201/08C08L2201/02
Inventor 周国剑王浩姜小龙叶文琼陈晓敏
Owner 中广核俊尔(浙江)新材料有限公司
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