Heat resistant ASA (Acrylonitrile-Styrene-Acrylic ester) resin composition and preparation method thereof

A technology of ASA resin and composition, applied in the field of polymer composite materials and preparation, can solve the problems of low thermal deformation temperature and achieve the effect of good heat resistance

Inactive Publication Date: 2011-04-27
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the objectives of the present invention is to overcome the low heat deflection tem

Method used

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  • Heat resistant ASA (Acrylonitrile-Styrene-Acrylic ester) resin composition and preparation method thereof
  • Heat resistant ASA (Acrylonitrile-Styrene-Acrylic ester) resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1: 3000g ASA high rubber powder, 4500g SAN resin (melt index 10g / min, 220℃ / 10kg), 2500g α-SMAN copolymer, 15g antioxidant 168, 15g antioxidant 1010, 30g light stabilizer 770 is mixed by a high-speed mixer for 5 minutes, and then extruded and pelletized in a twin-screw extruder with a length-to-diameter ratio of 40 and a diameter of 35mm. The extrusion temperature is 170°C~240°C and the screw speed is 200~500rpm.

Example Embodiment

[0027] Example 2: 3500g ASA high rubber powder, 2000g SAN resin (melt index 10g / min, 220℃ / 10kg), 2000g SAN resin (melt index 28g / min, MFR220℃ / 10kg), 2500g NPMI-SAN copolymer, 15g antioxidant 168, 15g antioxidant 1010, 30g light stabilizer 770 are mixed for 5 minutes in a high-speed mixer, and then extruded and pelletized in a twin-screw extruder with a length-to-diameter ratio of 40 and a diameter of 35mm, and the extrusion temperature is 170℃ ~240℃, screw speed 200~500rpm.

Example Embodiment

[0028] Example 3: 3000g ASA high rubber powder, 5000g SAN resin (melt index 10g / min, 220℃ / 10kg), 2000g SMA copolymer, 15g antioxidant 168, 15g antioxidant 1010, 30g light stabilizer 770 After mixing in a high-speed mixer for 10 minutes, extrude and pelletize in a twin-screw extruder with a length-to-diameter ratio of 40 and a diameter of 35mm. The extrusion temperature is 170°C~240°C, and the screw speed is 200~500rpm.

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Abstract

The invention relates to a heat resistant ASA (Acrylonitrile-Styrene-Acrylic ester) resin composition and a preparation method thereof. The ASA resin composition is prepared from ASA high rubber powder, SAN (Styrene Acrylonitrile) resin with different melt indexes, a heat resistant modifier, an inorganic additive and a proper quantity of antioxidant and light stabilizer which are sufficiently mixed and then melted, blended and extruded by a double-screw extruder at 170-240 DEG C. The prepared ASA resin composition has the advantages of high heat resistance and weather resistance and good comprehensive mechanical property and processability and is particularly suitable for auto exterior part products such as a radiator grid, an exterior mirror shell, and the like.

Description

technical field [0001] The invention relates to a heat-resistant ASA resin composition and a preparation method thereof, belonging to the field of polymer composite materials and preparation. Background technique [0002] ASA resin is a ternary graft copolymer composed of acrylate rubber, styrene and acrylonitrile. Its structure is similar to ABS (acrylonitrile-butadiene-styrene), and it has good mechanical properties, processing properties and chemical resistance. performance. In addition, compared with ABS, ASA introduces acrylate rubber without double bonds to replace butadiene rubber. Since light waves with a wavelength of less than 700nm in sunlight can act on butadiene, only light waves less than 300nm have an effect on butadiene. Acrylic ester acts as a photooxidant, so the weather resistance of ASA resin has been substantially improved, which is about 10 times higher than that of ABS. Therefore, ASA resin has greater advantages in the application of exterior mirror ...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L25/12C08K7/14C08K3/34C08K5/134C08K5/526
Inventor 洪月蓉盛小海吴娟娟陈超金彩虹何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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