High-toughness high-magnetic-attraction ABS alloy and preparation method and application thereof

Abstract

The invention discloses a high-toughness and high-magnetic-attraction ABS (acrylonitrile butadiene styrene) alloy as well as a preparation method and application thereof. The high-toughness and high-magnetic-attraction ABS alloy provided by the invention comprises the following components in parts by weight: 20-30 parts of ABS resin; 20 to 30 parts of polyester resin; 40 to 60 parts of metal iron powder; 2-8 parts of a surface modifier; the surface modifier is oxidized low-density polyethylene wax, and the acid value is greater than or equal to 15 mg KOH / g. Oxidized low-density polyethylene wax is adopted to induce coating of high-content metal iron powder to be filled into an ABS system, polyester resin is introduced, and the ABS alloy with high toughness and high magnetic attraction performance can be obtained. The cantilever beam notch impact strength of the high-toughness and high-magnetic-attraction ABS alloy is larger than or equal to 14 kJ / m < 2 >, and the high-toughness and high-magnetic-attraction ABS alloy can attract weights with the weight of 255 g or above under the condition of a neodymium iron boron strong magnetic hanging ring with the pulling-out force of 18 kg.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, and more particularly, to an ABS alloy with high toughness and high magnetic absorption and a preparation method and application thereof. Background technique [0002] In recent years, metal-like plastics have been widely used in the appearance decoration of plastic parts. Generally, a small amount of metal powder (such as aluminum powder and iron powder) is added to the plastic resin to change the appearance of the plastic, so that the parts have a metal effect. However, the addition of metal powder will lead to a substantial decrease in the toughness of the plastic. For acrylonitrile-butadiene-styrene copolymer (ABS resin), butadiene rubber is generally used for toughening modification, but it still cannot effectively compensate for the decrease in toughness caused by metal powder. Therefore, the addition of metal powder to ABS resin Quantity is limited. [0003] At present, in t...

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Problems solved by technology

Magnetic materials are generally prepared by adding magnetic materials or high-content metallic iron. However, since the processing equipment commonly used in the processing of ABS products has many iron-containing parts, it is difficult to use magnetic materials to prepare high-magnetic ABS products. If a large amount of metal powder is added to obtain magnetic properties, the toughness of ABS material will deteriorate seriously

[0004] Therefore, it is difficult to make a high-toughness high-magnetic ABS material with magnetic properties and excellent toughness

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