Novel low odor, low carbon emitting PC/ABS alloy material and preparation

An alloy material and low-odor technology, which is applied in the field of polycarbonate/acrylonitrile-butadiene-styrene copolymer alloy materials and preparation, can solve problems such as complex molding and processing technology, and achieve physical and mechanical properties that are not affected, Low odor characteristics, low cost effect

Active Publication Date: 2009-07-01
CHONGQNG PRET NEW MATERIAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can prevent the odor inhibitor from absorbing moisture during the blending and extrusion process, it also makes the subsequent molding process of the material more complicated

Method used

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  • Novel low odor, low carbon emitting PC/ABS alloy material and preparation
  • Novel low odor, low carbon emitting PC/ABS alloy material and preparation

Examples

Experimental program
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Effect test

preparation example Construction

[0054] Preparation of PP-g-MAH: dry mix 70% ABS resin, PP30%, maleic anhydride (MAH) 1.5%, initiator 1%, stearic acid 0.4% in a high-speed mixer for 3-5 minutes and enter the double Screw extruder, melt extruded, granulated for use. The processing technology is as follows: the temperature in the first zone is 170-190°C, the temperature in the second zone is 180-200°C, the temperature in the third zone is 180-200°C, the temperature in the fourth zone is 170-190°C; the residence time is 1-3 minutes, and the pressure is 12-18MPa .

[0055] Preparation of hydrophobic odor inhibitor: Weigh 200g of attapulgite, add 2500ml of deionized water, and stir at high speed to form a suspension solution; stir at 80°C for 3 hours, and at the same time add 0.1g / ml of cetyltrimethyl Ammonium bromide aqueous solution 75ml; the reaction product was repeatedly suction filtered and washed several times, then dried in vacuum, activated at 200°C for 2 hours, crushed and sieved.

[0056] Preparation ...

Embodiment 1

[0058] Preparation of PC / ABS alloy material: 52.6% polycarbonate, 45% ABS / PP graft, 2% hydrophobic odor adsorption masterbatch, 0.1% antioxidant 1010 and 0.2% antioxidant 168 and 0.1% lubrication The agent is dry-mixed in a high-speed mixer for 3 to 5 minutes, then melted and extruded in a twin-screw extruder, and granulated. -240°C, four zone 215-225°C; residence time 1-2 minutes, pressure 8-10MPa.

Embodiment 2

[0060] 50.6% polycarbonate, 45% ABS / PP graft, 4% hydrophobic odor absorption masterbatch, 0.1% antioxidant 1010, 0.2% antioxidant 168 and 0.1% lubricant, and all the other operations are the same as in Example 1.

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Abstract

The invention discloses a novel low-odor low-volatilization PC/ABS (polycarbonate/acrylonitrile- butadiene-styrene copolymer) alloy material and a method for preparing the same. The PC/ABS alloy material comprises the following compositions by weight percentage: 50 to 80 percent of polycarbonate, 10 to 45 percent of ABS/PP graft, 1.0 to 5.0 percent of hydrophobic odor adsorption master particles. 0.1 to 1.0 percent of antioxidant and 0 to 0.5 percent of other additives. The preparation method comprises: firstly, 20 to 70 percent of ABS resin and 30 to 80 percent of attapulgite modified by quaternary ammonium salt type surfactant are mixed, extruded and pelletized to form high-concentration hydrophobic odor adsorption master particles; and secondly, the high-concentration hydrophobic odor adsorption master particles and the polycarbonate, the ABS/PP graft, the antioxidant and other additives are mixed, are placed in a double-screw extruder and are subjected to fusion, extrusion and pelletization. The obtained novel PC/ABS alloy material has the characteristics that the material is not influenced in molding processing at all and has excellent physical and chemical comprehensive performance and excellent odor property and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a novel polycarbonate / acrylonitrile-butadiene-styrene copolymer alloy (PC / ABS alloy) material with low odor and low total carbon emission and a preparation method. Background technique [0002] Polycarbonate (PC) has good transparency, high heat resistance, good light stability and dimensional stability, and is the engineering plastic with the best toughness, but it is sensitive to gaps, high internal stress in the product, high melt viscosity, poor fluidity, and difficult to form. difficulty. Acrylonitrile-butadiene-styrene copolymer resin (ABS) is a general-purpose thermoplastic resin with excellent impact resistance and good molding and processing properties. It has a high performance / price ratio and is easy to electroplate and machine. Dimensional stability is good, but its heat resistance and weather resistance are poor. A blended alloy with PC and ABS resin as the main ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K9/04C08K3/34B29B9/12B29C47/92C08L51/06B29C48/40B29C48/92B29C48/95
CPCB29K2035/00B29K2055/02B29K2069/00C08L69/00B29C48/875B29C48/92B29C2948/92704B29C48/022B29C48/04B29C48/40B29C48/9185B29C2948/9218B29C2948/92333B29C2948/92514B29C2948/92561B29C2948/92895B29C48/95C08L55/02
Inventor 张鹰张祥福周文
Owner CHONGQNG PRET NEW MATERIAL
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