Attractive-appearance and anti-corrosive polypropylene composite material and preparation method thereof

Abstract

The invention relates to an attractive-appearance and anti-corrosive polypropylene composite material and a preparation method thereof. The attractive-appearance and anti-corrosive polypropylene composite material is prepared from the following raw materials in parts by weight: 100 parts of polypropylene, 5 to 10 parts of high impact polystyrene, 10 to 50 parts of glass fibers, 3 to 5 parts of compatilizer 1, 1 to 3 parts of compatilizer 2, 0.3 to 1 parts of antioxidant, 0.5 to 5 parts of lubricant, and 0.2 to 0.5 part of coupler. The invention also provides the preparation method of the attractive-appearance and anti-corrosive polypropylene composite material. The attractive-appearance and anti-corrosive polypropylene composite material has the advantages that the appearance is attractive, the anti-chemical corrosive property is realized, the tensile strength and notch impact strength are higher, the comprehensive property is excellent, and the attractive-appearance and anti-corrosive polypropylene composite material can be applied to the fields of washing machine drums, dish-washing machine brackets, pumps and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a corrosion-resistant polypropylene composite material with good appearance and a preparation method thereof. Background technique [0002] Due to its low price, easy processing, low density, chemical corrosion resistance and excellent physical and mechanical properties, polypropylene is widely used and has become the fastest growing general-purpose plastic. Due to its high strength and high impact properties, glass fiber reinforced polypropylene has been used in many fields. In the field of home appliances, structural parts are mostly used as applications, such as drum washing machine drum brackets, dishwasher brackets, etc. Such parts In addition to high requirements on material performance, the appearance of the product is also more concerned. At the same time, due to the particularity of the parts, they are often in contact with liquids, and the liquids often contain chemical...

AI Technical Summary

Problems solved by technology

Polypropylene material has excellent chemical resistance, but when it is reinforced by glass fiber, due to the non-alkali resistance of the fiber material, and when the fiber material and resin coating are not good, there will be more gaps between the resin and glass fiber. Under the long-term erosion of liquid or other liquids, the parts are easy to crack in a short period of time, thus affecting the normal function and use

[0003] Chinese patent document CN102964690A discloses a high-strength corrosion-resistant polypropylene composite material and its preparation method. (1) Weigh the raw materials according to the following components and parts by weight: PP30-80, PE10-40, carbon fiber 5-20, Corrosion modifier 0.5-5, compatibilizer 0-10, antioxidant 0.1-0.5; (2) Put the mixed raw materials of PP, PE, corrosion modifier, compatibilizer and antioxidant into the screw machine In the process, the carbon fiber is metered in from the side feeder, extruded and granulated, the speed of the screw machine is controlled at 180-600rpm, the temperature is 190-220°C, and the product is obtained by melting and extruding granulation. Compared with the existing technology, it is the same as the traditional Compared with the glass fiber reinforced polypropylene material, it has high mechanical strength, good fluidity, and good acid and alkali corrosion resistance. It is especially suitable for pipelines and pump body materials with strong chemical corrosion resistance, but the price of such materials is relatively high. And it can only be made in black, which greatly limits its application range

However, the application of materials prepared by this method is limited and cannot be used in the field of long-term contact with liquid environments

[0006] However, there is no report about a kind of good appearance and corrosion-resistant polypropylene composite material and its preparation method.

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