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ASA (Acrylonitrile-Styrene-Acrylate) and PET (Polyethylene Terephthalate) blended alloy and preparation method thereof

A technology of mixing gold and mass parts, which is applied in the field of ASA and PET mixed gold and the preparation of the alloy, can solve the problems of large interfacial tension, difficulty, and thermodynamic incompatibility between the two phases, so as to improve the melt index and improve the tensile strength. the effect of strength

Inactive Publication Date: 2012-01-18
慈溪金岛塑化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PET is a semi-crystalline polymer, and ASA is a non-crystalline, weakly polar polymer, the solubility parameters of the two are quite different, which is thermodynamically incompatible, and simple blending results in two-phase The interfacial tension is very large, resulting in poor mechanical properties, so it is quite difficult to blend the two into a blended alloy

Method used

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  • ASA (Acrylonitrile-Styrene-Acrylate) and PET (Polyethylene Terephthalate) blended alloy and preparation method thereof
  • ASA (Acrylonitrile-Styrene-Acrylate) and PET (Polyethylene Terephthalate) blended alloy and preparation method thereof
  • ASA (Acrylonitrile-Styrene-Acrylate) and PET (Polyethylene Terephthalate) blended alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A blended alloy of ASA and PET, which consists of the following components:

[0018] 25 parts by mass of ASA;

[0019] 15 parts by mass of PET;

[0020] The compatibilizer of 0.5 mass parts, in the present embodiment, compatibilizer selects SMA for use;

[0021] The antioxidant of 0.6 mass parts, antioxidant is selected antioxidant 1010 for use in the present embodiment;

[0022] The lubricant of 0.5 mass parts, lubricant selects calcium stearate among the present embodiment.

[0023] The method for preparing the above blended alloy of ASA and PET: mix the raw materials according to the proportion, stir the raw materials evenly, put them into a twin-screw extruder, extrude and granulate under the conditions of a processing temperature of 190°C and a screw speed of 400rpm.

Embodiment 2

[0025] A blended alloy of ASA and PET, which consists of the following components:

[0026] 90 parts by mass of ASA;

[0027] 55 parts by mass of PET;

[0028] The compatibilizer of 3 mass parts, in the present embodiment, compatibilizer selects PS-g-MAH for use;

[0029] The antioxidant of 0.47 mass parts, antioxidant is selected antioxidant 168 for use in the present embodiment;

[0030] 0.75 parts by mass of the lubricant, the lubricant in the present embodiment selects zinc stearate for use.

[0031] The method for preparing the above-mentioned blended alloy of ASA and PET: mix the raw materials according to the proportion, stir the raw materials evenly, put them into a twin-screw extruder, extrude and granulate under the conditions of a processing temperature of 180°C and a screw speed of 400rpm.

Embodiment 3

[0033] A blended alloy of ASA and PET, which consists of the following components:

[0034] 35 parts by mass of ASA;

[0035] 60 parts by mass of PET;

[0036] The compatibilizer of 0.1 mass part, compatibilizer selects SEBS-g-MAH among the present embodiment;

[0037] The antioxidant of 0.55 mass parts, antioxidant is selected antioxidant 168 for use in the present embodiment;

[0038] 0.6 parts by mass of the lubricant, the lubricant in the present embodiment selects PE wax.

[0039] The method for preparing the above-mentioned blended alloy of ASA and PET: mix the raw materials according to the proportion, stir the raw materials evenly, put them into a twin-screw extruder, extrude and granulate under the conditions of a processing temperature of 200°C and a screw speed of 400rpm.

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Abstract

The invention discloses an ASA (Acrylonitrile-Styrene-Acrylate) and PET (Polyethylene Terephthalate) blended alloy, which consists of the following components in parts by mass: 25-90 parts of ASA, 10-60 parts of PET, 0.1-10 parts of compatilizer, 0.4-0.6 part of antioxidant and 0.3-1 part of lubricant. The preparation method of the blended alloy comprises the following steps of: preparing raw materials according to proportioning; uniformly stirring the raw materials and then adding into a double-screw extruder to extrude and granulate under the conditions of processing temperature of 170-220 DEG C and screw rotation speed of 400rpm; adding the compatilizer, the antioxidant and the lubricant during blending to perform morphogenetic control and interfacial modification; strictly controlling processing parameters during processing so as to prepare the PET and ASA blended alloy material with use value. Thus, the prepared alloy has the toughness, weather resistance and size stability of the ASA and has heat resistance of the PET; the tensile strength, the elongation at break and the notch impact strength of the ASA are obviously improved; and the fusion index is also obviously improved.

Description

(1) Technical field [0001] The invention relates to a blended alloy of ASA and PET and a preparation method of the alloy. (2) Background technology [0002] Aiming at the shortcomings of ABS's poor weather resistance, acrylic rubber is used to replace the butadiene rubber part in ABS resin to prepare weather-resistant ASA. The double-bond-free structure of ASA greatly improves its weather resistance and overcomes the obvious mechanical strength of ABS resin exposed outdoors for a long time. Falling, the color turns yellow due to the decomposition of sunlight. ASA resin can be widely used in the fields of automobiles, electronics, electrical appliances, daily necessities, outdoor decoration materials and building materials. It can be exposed to harsh environmental conditions such as outdoor ultraviolet rays, humidity, rain, light and ozone for a long time without painting to maintain stable physical properties, and can be recycled and recycled. The characteristics of spray-f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L67/02C08L25/08C08K5/134C08K5/098C08K5/526
Inventor 韦斌魏静
Owner 慈溪金岛塑化有限公司
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