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Special low-warpage composite material for notebook computer and preparation method thereof

A composite material and notebook technology, applied in the direction of digital processing power distribution, etc., can solve problems such as warping and deformation, and achieve the effects of not easy warping and deformation, high gloss, and excellent heat dissipation performance

Inactive Publication Date: 2012-07-18
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a low-warping material that is not easy to warp and deform, and improves the molding rate and assembly rate of the PC / ABS modified composite material in the prior art in view of the defects that the PC / ABS modified composite material is prone to warp deformation after injection molding and cooling. Composite materials for curved notebooks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1, select the following raw materials in parts by weight: 50 parts of PC resin, 25 parts of ABS resin, 5 parts of toughening agent (C223A), 14 parts of flame retardant (BEO), 0.2 part of synergistic flame retardant (TN3500) , 2 parts of anti-warping agent talcum powder, 3 parts of compatibilizer (CX-01), 0.3 part of antioxidant (1076), 0.2 part of antioxidant (168), 0.3 part of lubricant (EBS), of which ABS resin Containing 15% of acrylonitrile, 30% of butadiene and 55% of styrene by weight.

[0050] Preparation method: comprising the following steps:

[0051] (1) First put the PC resin in a blower dryer at a temperature of 110°C and dry it for 4 hours;

[0052] (2) Mix the dried PC resin with ABS resin, toughening agent, flame retardant, synergistic flame retardant, compatibilizer, anti-warping agent, antioxidant and processing aid;

[0053] (3) Then the raw materials mixed in the step (2) are melted and extruded by a screw extruder, and granulated; The t...

Embodiment 2

[0054] Embodiment 2, select the following raw materials in parts by weight: 75 parts of PC resin, 10 parts of ABS resin, 3 parts of toughening agent (C223A), 7 parts of flame retardant (BEO), 0.5 part of synergistic flame retardant (TN3500) , 3 parts of anti-warping agent talcum powder, 0.6 part of compatibilizer (KO-311), 0.2 part of antioxidant (1076), 0.2 part of antioxidant (168), 0.5 part of lubricant (EBS), of which ABS resin Containing the weight percent of 35% of acrylonitrile, 5% of butadiene, and 60% of styrene respectively.

[0055] Preparation method: comprising the following steps:

[0056] (1) First put the PC resin in a blast dryer at a temperature of 120°C and dry it for 3 hours;

[0057] (2) Mix the dried PC resin with ABS resin, toughening agent, flame retardant, synergistic flame retardant, compatibilizer, anti-warping agent, antioxidant and processing aid;

[0058] (3) Then the raw materials mixed in the step (2) are melted and extruded by a screw extruder,...

Embodiment 3

[0059] Embodiment 3, select the following raw materials in parts by weight: 70 parts of PC resin, 17.6 parts of ABS resin, 1 part of toughening agent (C223A), 10 parts of flame retardant (BEO), 0.1 part of synergistic flame retardant (TN3500) , 1 part of anti-warping agent talcum powder, 1 part of compatibilizer (CX-01), 0.1 part of antioxidant (1076), 0.1 part of antioxidant (168), 0.1 part of lubricant (EBS), of which ABS resin Containing the weight percent of 32% acrylonitrile, 28% butadiene and 40% styrene respectively.

[0060] Preparation method: comprising the following steps:

[0061] (1) First put the PC resin in a blower dryer at a temperature of 130°C and dry it for 2 hours;

[0062] (2) Mix the dried PC resin with ABS resin, toughening agent, flame retardant, synergistic flame retardant, compatibilizer, anti-warping agent, antioxidant and processing aid;

[0063] (3) Then the raw materials mixed in the step (2) are melted and extruded by a screw extruder, and gra...

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PUM

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Abstract

The invention discloses a special low-warpage composite material for a notebook computer and a preparation method thereof. The composite material is prepared from the following main raw materials of PC (Polycarbonate) resin, ABS (Acrylonitrile Butadiene Styrene) resin, a flexibilizer, a fire retardant, an assistant fire retardant, a compatilizer, a wrapage preventing agent, an antioxidant and a processing aid. The preparation method comprises the following steps of: (1) firstly, placing the PC resin at 110-130 DEG C for drying for 2-4h; (2) uniformly mixing the dried PC resin with the ABS resin, the flexibilizer, the fire retardant, the assistant fire retardant, the compatilizer, the wrapage preventing agent, the antioxidant and the processing aid; and (3) fusing and extruding the mixed raw materials in the step (2) to prill to obtain a low-warpage composite material. The invention provides the special low-warpage composite material for a notebook computer, which is not easy to warp or deform and improves the product molding rate and the installing rate, and the preparation method thereof.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a modified composite material and a preparation method thereof, in particular to a special composite material for low-warpage notebooks and a preparation method thereof. Background technique [0002] Due to its outstanding impact resistance, creep resistance and dimensional stability, polycarbonate (PC) resin also has the characteristics of heat resistance, low water absorption, non-toxicity, and excellent dielectric properties, and it is the only one of the five major engineering plastics. Product with good transparency. Currently widely used in automotive, electrical and electronic, construction, office equipment, packaging, sports equipment, medical care and other fields. [0003] ABS resin is a terpolymer of acrylonitrile-butadiene-styrene. It has good dimensional stability, outstanding impact resistance, heat resistance, dielectric properties, wear resistance, good...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/06C08K3/34C08K3/26B29B9/06B29B13/06B29C47/92G06F1/18B29C48/92
CPCB29C48/9185B29C48/04B29C48/92B29C2948/92514B29C2948/92561B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 付天英
Owner SHENZHEN KEJU NEW MATERIAL
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