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High-rigidity polycarbonate composite material and preparation method thereof

A polycarbonate and composite material technology, which is applied in the field of modified polycarbonate resin, can solve the problems of decreased mechanical strength of materials, decreased high temperature resistance of materials, complicated production, etc., and achieves high rigidity performance, fluidity, and low warpage performance. , the effect of high fluidity

Inactive Publication Date: 2013-04-03
DONGGUAN HONOUR E P
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of PBT will narrow the processing temperature range of the material, and the production is complicated, the formulation raw materials are many, and the pioneering process is complicated; the introduction of kaolin will reduce the mechanical strength of the material and the surface gloss. Decrease the high temperature resistance of the material

Method used

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  • High-rigidity polycarbonate composite material and preparation method thereof
  • High-rigidity polycarbonate composite material and preparation method thereof
  • High-rigidity polycarbonate composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Weigh 60 parts of polycarbonate, 0.3 parts of antioxidant, 0.4 parts of anti-dripping agent, 2 parts of lubricant, 3 parts of flame retardant and 3 parts of phase solvent;

[0039] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0040] (3) Put the mixed raw materials in step polymer (2) into a twin-screw extruder, weigh 40 parts of glass fiber side feed, melt extrude, and granulate;

[0041] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-280°C; the temperature of temperature control zone 34 is 200-280°C; the temperature of temperature control zone 5-6 is 200-280°C ℃; the temperature of temperature control zone 7-8 is 200-280 ℃; the temperature of temperature control zone 9-10 is 200-280 ℃.

Embodiment 2

[0043] (1) Weigh 40 parts of polycarbonate, 0.6 parts of antioxidant, 0.6 parts of anti-dripping agent, 5 parts of lubricant, 5 parts of flame retardant and 5 parts of phase solvent;

[0044] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0045] (3) Put the mixed raw materials in step polymer (2) into a twin-screw extruder, weigh 60 parts of glass fiber side feed, melt extrude, and granulate;

[0046] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-280°C; the temperature of temperature control zone 3-4 is 200-280°C; the temperature of temperature control zone 5-6 is 200°C ~280℃; the temperature of temperature control zone 7-8 is 200~280℃; the temperature of temperature control zone 9-10 is 200~280℃.

Embodiment 3

[0048] (1) Weigh 50 parts of polycarbonate, 0.5 parts of antioxidant, 0.5 parts of anti-dripping agent, 4 parts of lubricant, 4 parts of flame retardant and 4 parts of phase solvent;

[0049] (2) Put the above components into the mixer in proportion and mix for 20 minutes;

[0050] (3) Put the mixed raw materials in step polymer (2) into a twin-screw extruder, weigh 50 parts of glass fiber side feed, melt extrude, and granulate;

[0051] Among them, the temperature of each temperature control zone of the twin-screw extruder, the temperature of temperature control zone 1-2 is 200-280°C; the temperature of temperature control zone 3-4 is 200-280°C; the temperature of temperature control zone 5-6 is 200°C ~280℃; the temperature of temperature control zone 7-8 is 200~280℃; the temperature of temperature control zone 9-10 is 200~280℃.

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Abstract

The invention discloses a high-rigidity polycarbonate composite material and a preparation method thereof, relating to the field of modified polycarbonate resin. The composite material is prepared from the following components in parts by mass: 40-70 parts of polycarbonate, 30-60 parts of glass fiber, 0.08-0.6 part of antioxidant, 0.1-0.6 part of anti-drip agent, 0.5-5 parts of lubricant, 0.08-5 parts of flame retardant and 1-5 parts of solvent. The preparation method of the composite material comprises the following steps: (1) weighing the polycarbonate, antioxidant, anti-drip agent, lubricant, flame retardant and solvent; (2) proportionally putting the components into a mixer, and mixing for 10-30 minutes; and (3) putting the raw materials mixed in the step (2) in a double screw extruder, weighing the glass fiber, performing side feeding, performing melt extrusion, and granulating. The composite material prepared by the method has high rigidity, super toughness, low warpage and halogen-free flame retardancy.

Description

technical field [0001] The invention relates to the field of modified polycarbonate resins, in particular to a high-rigidity, low-warpage halogen-free flame-retardant polycarbonate composite material and a preparation method thereof. Background technique [0002] Polycarbonate has been widely used in many fields due to its good mechanical strength. At present, the polycarbonate reinforcement materials sold on the market are mainly glass fiber and carbon fiber. Carbon fiber modified polycarbonate is limited in application due to its high price, and glass fiber modified reinforced materials are more widely used. Due to the poor compatibility between glass fiber and polycarbonate, glass fiber is easy to float out of the surface of the material; the higher the glass fiber content, the worse the processing performance of the material, the molding process is difficult, the material has poor toughness, and is prone to warping. [0003] Modified polycarbonate with high rigidity, s...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K13/04C08K7/14B29C47/92B29C48/92
CPCB29B7/90B29B9/14B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895C08G77/448C09K21/00
Inventor 马述伟李红刚曹建伟
Owner DONGGUAN HONOUR E P
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