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Flame-retardant ASA material and preparation method thereof

A technology based on weight percentage and styrene, which is applied in the field of flame-retardant ASA materials and its preparation, can solve the problems of material brittleness, poor flame-retardant performance, and reduced toughness, so as to overcome the sharp decrease in toughness, improve flame retardancy, and maintain toughness Effect

Inactive Publication Date: 2009-04-01
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the disadvantage of ASA itself is that its flame retardant performance is poor, and the flame retardant level can only reach UL94-HB. Adding flame retardants will sharply reduce the toughness of ASA materials and make them brittle, thus limiting the use of ASA materials in certain fields. Applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The ternary graft copolymer (ASA) weight ratio of its acrylonitrile, styrene, acrylate composition of resin is: 82%; Toughener weight ratio is: 2%; Tetrabromobisphenol A weight ratio is: 12% ; Antimony trioxide (Sb 2 o 3 ) weight ratio is: 3%; UV absorber (5411) weight ratio is: 0.3%; antioxidant (1010) weight ratio is: 0.2%; antioxidant (168) weight ratio is: 0.2%; lubricant ( EBS) weight ratio: 0.3%. Mix for 4 minutes in a high-speed mixer;

[0037] The uniformly mixed components are placed in a twin-screw extruder, melted, mixed, extruded and granulated;

[0038] The temperature of the first zone of the twin-screw extruder: 180~190℃, the temperature of the second zone: 190~200℃, the temperature of the third zone: 200~210℃, the temperature of the fourth zone: 210~220℃, the temperature of the fifth zone: 200~210℃ , Six-zone temperature: 190-200°C, residence time 1-2 minutes, host speed: 300-350rpm.

Embodiment 2

[0040]The ternary graft copolymer (ASA) weight ratio of its acrylonitrile, styrene, acrylate composition of resin is: 80%; Toughener weight ratio is: 3.3%; Tetrabromobisphenol A weight ratio is: 13% ; Antimony trioxide (Sb 2 o 3 ) weight ratio: 3%; UV absorber (5411) weight ratio: 0.3%; antioxidant (1010) weight ratio: 0.05%; antioxidant (168) weight ratio: 0.05%; lubricant ( EBS) weight ratio: 0.3%. Mix for 4 minutes in a high-speed mixer;

[0041] Put the homogeneously mixed components in a twin-screw extruder, melt, mix, extrude and granulate;

[0042] The temperature of the first zone of the twin-screw extruder: 180~190℃, the temperature of the second zone: 190~200℃, the temperature of the third zone: 200~210℃, the temperature of the fourth zone: 210~220℃, the temperature of the fifth zone: 200~210℃ , Six-zone temperature: 190-200°C, residence time 1-2 minutes, host speed: 300-350rpm.

Embodiment 3

[0044] The ternary graft copolymer (ASA) weight ratio of its acrylonitrile, styrene, acrylate composition of resin is: 76%; Toughener weight ratio is: 3.2%; Tetrabromobisphenol A weight ratio is: 15% ; Antimony trioxide (Sb 2 o 3 ) weight ratio is: 4%; UV absorber (5411) weight ratio is: 0.4%; antioxidant (1010) weight ratio is: 0.5%; antioxidant (168) weight ratio is: 0.5%; lubricant ( EBS) weight ratio: 0.4%. Mix for 4 minutes in a high-speed mixer;

[0045] The uniformly mixed raw materials are placed in a twin-screw extruder, melted, mixed, extruded and granulated;

[0046] The temperature of the first zone of the twin-screw extruder: 180~190℃, the temperature of the second zone: 190~200℃, the temperature of the third zone: 200~210℃, the temperature of the fourth zone: 210~220℃, the temperature of the fifth zone: 200~210℃ , Six-zone temperature: 190-200°C, residence time 1-2 minutes, host speed: 300-350rpm.

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Abstract

The invention discloses a fire-retardant ASA material and a preparation method thereof. The fire-retardant ASA material is prepared by the following components in accordance with the weight percentage: 72 to 82 percent of ternary graft copolymer which consists of acrylonitrile, styrene, and acrylic ester; 2 to 7 percent of flexibilizer, 12 to 18 percent of tetrabromobisphenol A, 3.0 to 7.0 percent of antimony trioxide, 0.3 to 0.5 percent of UV absorber, 0.1 to 1.0 percent of antioxidant, and 0.3 to 0.7 percent of lubricant. The fire-retardant ASA material not only has good fire-retardant property, but also maintains original toughness and weatherability of the ASA material, and can be widely used in the automotive field, electrical and electronic field, architecture field and other fields, for example, the use in the production of external parts such as automobile exterior mirrors, radiator grilles, tailgates, lampshades and the like, motorcycle panels, camping cars, small hulls, surfboards; all-weather shells such as sewing machines, telephones, kitchen equipment, satellite antennas, and the like; and can also be used in advanced bathrooms, hygiene products, and hot and cold water switches.

Description

[technical field] [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant ASA material and a preparation method thereof. [Background technique] [0002] ASA resin is a ternary graft copolymer composed of acrylonitrile, styrene, and acrylate. It is an amorphous polymer formed by grafting and copolymerizing acrylonitrile and styrene monomers with polyacrylate as the main chain. ASA was first industrialized by BASF in Germany in 1962, followed by Hitachi Chemical in Japan. At present, ASA is a major product of GE in the United States. Domestic research on ASA is relatively late, and Zhejiang University, Beijing University of Chemical Technology, Lanzhou Petrochemical Company Research Institute and other units have developed research, but no industrial production. [0003] ASA is an opaque yellow amorphous polymer, odorless and non-toxic, its own flame retardancy reaches UL94 HB level, burns slowly, and emits the smell of ben...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L55/02C08L25/08C08K13/02B29B9/12B29C47/92C08K5/136C08K3/22B29C48/40B29C48/92
CPCB29C47/92B29C48/04B29C48/40
Inventor 徐东贺永徐建辉
Owner SHENZHEN KEJU NEW MATERIAL
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