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Hydrolysis-resistant, illumination-resistant and low-temperature-resistant halogen-free flame-retardant polycarbonate composite material and preparation method thereof

A technology of flame retardant polycarbonate and composite materials, applied in the field of halogen-free flame retardant polycarbonate composite materials and preparation, can solve the failure of flame retardant, the hydrolysis resistance is not evaluated, and the sulfonate flame retardant is not resistant to hydrolysis and other problems, to achieve the effect of not easy to hydrolyze, improve hydrolysis resistance and light aging resistance, and good impact performance

Active Publication Date: 2020-04-28
SHANGHAI CHANGWEI JINCI ENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This composition significantly improves the flame retardancy and weather resistance of the material, but the hydrolysis resistance is not evaluated, and the sulfonate flame retardant is not resistant to hydrolysis in the actual application process, and the flame retardancy is prone to failure

Method used

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  • Hydrolysis-resistant, illumination-resistant and low-temperature-resistant halogen-free flame-retardant polycarbonate composite material and preparation method thereof
  • Hydrolysis-resistant, illumination-resistant and low-temperature-resistant halogen-free flame-retardant polycarbonate composite material and preparation method thereof
  • Hydrolysis-resistant, illumination-resistant and low-temperature-resistant halogen-free flame-retardant polycarbonate composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7

[0048] The components and dosage of the halogen-free flame-retardant polycarbonate composite material with hydrolysis resistance, light resistance and low temperature resistance are shown in Table 1:

[0049] The toner is black mother UN2014.

[0050] According to the ratio in Table 1, each raw material component was mixed in a high-speed mixer for 6-8 minutes, then extruded, cooled, and granulated through a twin-screw extruder. The temperature in 11 zones of the twin-screw extruder was respectively set to 240°C, 250°C, 270°C, 270°C, 260°C, 260°C, 260°C, 260°C, 260°C, 260°C, 260°C; the obtained pellets were dried for 4 hours at a temperature of 120°C. It is injection-molded into standard splines under the condition of 260-280°C to obtain a halogen-free flame-retardant polycarbonate composite material that is resistant to hydrolysis, light, and low temperature.

Embodiment 11

[0066] The polysiloxane flame retardant in Example 11 is a linear polysiloxane flame retardant, the brand is RM4-7051, purchased from Dow Corning.

[0067] table 3

[0068]

[0069]

[0070] The performance test data of Examples 8-11 and Comparative Examples 5 and 6 are shown in Table 4, and the specific method is the same as that of Example 1.

[0071] Table 4

[0072]

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PUM

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Abstract

The invention discloses a hydrolysis-resistant, illumination-resistant and low-temperature-resistant halogen-free flame-retardant polycarbonate composite material which is prepared from the followingcomponents in percentage by mass: 83-98% of siloxane copolymerized polycarbonate resin, 1-5% of a phosphazene flame retardant, 0-2% of a polysiloxane flame retardant, 0-5% of a toughening agent, 0-3%of an anti-hydrolysis agent, 0-1% of an ultraviolet-proof additive and 0.1-1% of an auxiliary agent. The hydrolysis-resistant, illumination-resistant and low-temperature-resistant halogen-free flame-retardant polycarbonate composite material has good hydrolysis resistance and light aging resistance and also can ensure good low-temperature impact resistance at-30 DEG C.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a halogen-free flame-retardant polycarbonate composite material that is hydrolysis-resistant, light-resistant, low-temperature resistant, and a preparation method thereof. Background technique [0002] Polycarbonate is widely used in electronic appliances, automobiles, machinery manufacturing, computers and other technical fields because of its heat resistance, flame retardancy, good impact resistance, easy processing and molding, and low cost. With the rapid development of automobiles, electronic appliances and other fields, the requirements for materials are becoming more and more stringent. Many plastic products used outdoors are often faced with complex and changeable natural environments such as sunlight and rain. More stringent requirements are put forward for weather resistance. Because polycarbonate contains -COO (ester group) in its molec...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L83/10C08L83/04C08L51/04C08K13/02C08K5/5399C08K5/315
CPCC08L69/00C08L83/10C08L2201/02C08L2201/08C08L2201/22C08L2205/02C08L2205/03C08L83/04C08L51/04C08K13/02C08K5/5399C08K5/315
Inventor 朱爱华赵志刚张毅程方清黄金华岳同健胡同云夏镭
Owner SHANGHAI CHANGWEI JINCI ENG PLASTIC
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