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High gloss, scratch-resistant, halogen-free and flame-retardant polycarbonate resin composition

A technology of flame-retardant polycarbonate and polycarbonate resin, which is applied in the field of polymer materials, can solve the problems of difficult to endow materials with flame retardancy, poor mechanical properties, and weld line defects, and achieve excellent comprehensive mechanical properties and good processing Effects of fluidity and high-efficiency flame retardant properties

Inactive Publication Date: 2009-07-08
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although methyl methacrylate has good scratch resistance, and the pencil hardness is usually at the level of 2H-3H, it will appear: pearlescent effect (due to the large difference in refractive index between the components, the refractive index of PC is 1.59, and that of PMMA The refractive index is 1.49), obvious weld line defects, the toughness of the material becomes very poor, and it is difficult to give the material good flame retardancy
Therefore, this composition can not meet the needs of products such as home appliances and electronic appliances (the pencil hardness requirement reaches H grade, and surface glossiness 60 ° is more than 100)
[0005] There are literatures that add metal stearate to the system to reduce the molecular weight of polycarbonate during processing and improve the compatibility with polymethyl methacrylate, but the mixture has poor mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0041] Raw material name / part Example 1 Example 2 Example 3 Example 4 Example 5 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 PC-1 53.9 53.9 49.3 40 27.9 53.9 49.3 49.3 49.3 SAN-1 10 3 3 3 3 3 3 3 ABS-1 23 PMMA-1 14 20 20 25 30 20 20 20 Compatibilizer(1) 4 4 6 8 13 4 Compatibilizer 1(2) 6 Compatibilizer 2(3) 6 Compatibilizer 3(3) 6 Phosphorus Flame Retardant-1 17 18 20.6 22.9 25 18 20.6 20.6 20.6 PTFE 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 antioxidant 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 lubricant 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

[0042] Note: (1) is the preferred graft; (2) is the common compatibilizer, ACR, MBS, EMA, etc.; (3) is other grafts.

[0043] The following materials were used in the example abo...

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PUM

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Abstract

The invention relates to the technical field of polymer materials, in particular to a halogen-free flame retardant polycarbonate resin composition material. The halogen-free flame retardant polycarbonate resin composition material comprises polycarbonate resin, styrene-based resin, polymethacrylate, flame retardants and antioxidants, and is characterized in that the composite material also comprises efficient compatibilizer; and the efficient compatibilizer is 4 to 13 percent of the total weight, and is a graft copolymer. The composite material has high-efficiency flame-retardant performance, excellent comprehensive mechanical properties and dimensional stability, particularly ensures scratch resistance and good surface gloss, simultaneously ensures good processing mobility, and is suitable for injection molding of various electrical and electronic equipment and household electrical products with environment-friendly and flame-retardant requirements.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant polycarbonate resin composition material. Background technique [0002] Polycarbonate resins and styrene-based resin compositions have high impact resistance, good heat resistance, thermal stability and excellent processability. The composition is widely used in auto parts, home appliances, electronic and electrical components and the like. Many of these products are increasingly specialized, requiring environmentally friendly halogen-free flame retardant, high gloss, and scratch resistance. [0003] However, common polycarbonate resins and styrene-based resin compositions are not good in scratch resistance, and the pencil hardness is in the B grade. Therefore, good scratch resistance cannot be obtained only with polycarbonate resin and styrene-based resin composition. [0004] One method for obtaining scratch resistance is to mix polym...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L33/04C08L51/04C08K5/521C08K5/526B29B9/02B29C47/92B29C47/10C08L25/00B29C48/04B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 辛敏琦李荣群李文强
Owner SHANGHAI KUMHO SUNNY PLASTICS
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