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High-surface gloss glass fiber reinforced flame retardant polycarbonate composition and preparation method thereof

A glass fiber and polycarbonate technology, applied in the field of polycarbonate composition and preparation, can solve the problems of welding line and fogging, increase material cost, and a small amount of fiber separation, and achieve no welding line, high rigidity and high surface. glossy effect

Inactive Publication Date: 2013-08-07
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] CN101074314A, WO05007737, CN1153814C, JP198970, and US667955 all disclose reinforced polycarbonate compositions with different characteristics, but the above all describe the material surface, repeat the above disclosed material information, and the advanced injection molding technology that can cycle high and low temperature at mold temperature After molding products, it is found that although the surface has been greatly improved, there are a small amount of defects such as fiber separation, weld lines and fogging. The above defects are unacceptable on exterior decoration products.
JP272923 discloses a glass fiber reinforced polycarbonate composition with good surface, which uses a resorcinol and substituted resorcinol and polycarbonate copolymer products, and selects glass fibers with a diameter of less than 10 μm. The average roughness is 2.0μm, but the matrix resin of this material is not easy to obtain, and it increases the material cost

Method used

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  • High-surface gloss glass fiber reinforced flame retardant polycarbonate composition and preparation method thereof
  • High-surface gloss glass fiber reinforced flame retardant polycarbonate composition and preparation method thereof
  • High-surface gloss glass fiber reinforced flame retardant polycarbonate composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0034] A preparation method of high surface gloss glass fiber reinforced flame retardant polycarbonate composition, the method comprises the following steps:

[0035] (1) prepare materials according to the following components:

[0036] Polycarbonate: PC-1, LG-DOW Caliber 200-10, PC-2, LG-DOW Caliber 201-30, PC-3, LG-DOW Caliber 1080DVD;

[0037] Glass fiber: GF-1;

[0038] Surface modifier: W-1, Honeywell A-C540A, W-2, Honeywell A-C400A, W-3, Honeywell A-C573A, W-4, PETS;

[0039] Flame retardant: FR-1, 3M FR2025;

[0040] Anti-dripping agent: PTFE-1, MITSUBISHI RAYON Metablen A-3000;

[0041] Other additives Additive: Antioxidant 1010: Antioxidant 168=2:3 (weight ratio) compound mixture; the content of each component is shown in Table 1.

[0042] (2) Put polycarbonate, surface modifier, flame retardant, anti-dripping agent and other additives in the high-speed mixer according to the above ratio, stir and mix evenly, and send it into the twin-screw extruder from the main ...

Embodiment 9

[0060] A preparation method of high surface gloss glass fiber reinforced flame retardant polycarbonate composition, the method comprises the following steps:

[0061] (1) Prepare materials according to the following components and parts by weight: 50kg polycarbonate, 20kg glass fiber, 0.2kg surface modifier, 0.03kg flame retardant, 0.1kg anti-dripping agent, wherein the M of polycarbonate W It is 20000, according to ASTM D1234 standard, the melt index at 300°C is 70g / 10min, the glass fiber diameter is 10μm, and the glass fiber length is 10cm. The structure of the surface modifier is as follows:

[0062]

[0063] Where n is 10, x is 50, the number average molecular weight of the surface modifier is 1000, the R group is an epoxy group, the flame retardant is potassium perfluorobutane sulfonate (KFPBS), and the anti-dripping agent is poly Tetrafluoroethylene (PTFE), in addition, also includes 0.1kg light stabilizer 292, 0.1kg antioxidant-264 as heat stabilizer and 0.3kg polyvi...

Embodiment 10

[0066] A preparation method of high surface gloss glass fiber reinforced flame retardant polycarbonate composition, the method comprises the following steps:

[0067] (1) Prepare materials according to the following components and parts by weight: 70kg polycarbonate, 30kg glass fiber, 0.3kg surface modifier, 0.05kg flame retardant, 0.2kg anti-dripping agent, wherein the M of polycarbonate W According to the ASTM D1234 standard, the melt index measured at 300°C is 1g / 10min, the glass fiber diameter is 8μm, and the glass fiber length is 10cm. The structure of the surface modifier is as follows:

[0068]

[0069] Among them, n150, x is 345, the number average molecular weight of the surface modifier is 10000, the R group is ethylene acetate group, the flame retardant is potassium perfluorobutane sulfonate (KFPBS), and the anti-dripping agent is polytetrafluoroethylene (PTFE), in addition, also includes 0.2kg impact modifier AE1303, 0.2kg carbon black.

[0070] (2) Put polycar...

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Abstract

The invention relates to a high-surface gloss glass fiber reinforced flame retardant polycarbonate composition and a preparation method thereof. The composition comprises the following components by weight parts: 50-95 parts of polycarbonate, 5-50 parts of glass fiber, 0.1-5 parts of surface modifier, 0.01-0.2 part of flame retardant agent and 0.05-2 parts of anti-dripping agents. The preparationmethod comprises the steps of: adding the polycarbonate, the surface modifier, the flame retardant agent and the anti-dripping agents in a high-speed mixer in the proportions; stirring and mixing in uniformity; delivering the mixture in a twin-screw extruder through a main feeder; adding the glass fiber in the extruder through a side feeder; extruding and cutting into grains to obtain the high-surface gloss glass fiber reinforced flame retardant polycarbonate composition. Compared with the prior art, the high-surface gloss glass fiber reinforced flame retardant polycarbonate composition has the characteristics of high surface gloss, high rigidity, no welding line, no fogging, and the like. The high-surface gloss glass fiber reinforced flame retardant polycarbonate composition can be directly used as a structure and appearance integrated component, and can be used as a component integrating a face frame, a base and an inner structure of a display.

Description

technical field [0001] The invention relates to a polycarbonate composition and a preparation method, in particular to a high surface gloss glass fiber reinforced flame-retardant polycarbonate composition and a preparation method. Background technique [0002] With the large-scale application of LCD and liquid crystal imaging technology, the home appliance industry, especially the TV industry, has entered an era of rapid development of change. The application of advanced imaging technology has made it possible for TVs to be larger and thinner, and this trend has higher and higher requirements for materials. The problems and defects exposed by traditional materials such as PMMA / ABS and PC / ABS used in TV frame and base are becoming more and more obvious under this trend. PMMA / ABS has a low material modulus, and the product needs additional internal structural support; it cannot achieve halogen-free flame retardancy, and there are environmental protection problems. PC / ABS als...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08K7/14C08K5/42
Inventor 李强丁宗勤罗明华李荣群辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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