Novel antistatic bending-resisting polypropylene dustproof fan blade and preparation method thereof

Abstract

The invention discloses a novel antistatic bending-resisting polypropylene dustproof fan blade, which is prepared from the following components in percentage by weight through reaction: 56.5 to 60.5 percent of polypropylene resin, 0.5 to 4 percent of antistatic agent, 28 to 32 percent of glass fiber, 8 to 10 percent of gypsum powder and 0 to 1 percent of additive. A preparation method for the dustproof fan blade of the invention comprises the following steps: putting a certain proportion of the polypropylene resin, the antistatic agent, the glass fiber, the gypsum powder and the additive into a high mixing device, uniformly mixing the raw materials and stirring the mixture; putting the mixed raw materials into a charging barrel of a double-screw extruder to carry out extrusion and traction at a temperature of between 160 and 220 DEG C, carrying out standing-wave cooling on the obtained product and carrying out granulating; and utilizing the granules to prepare the dustproof fan blade by a common process. The novel antistatic bending-resisting polypropylene dustproof fan blade mixes small added quantity of the antistatic agent with the glass fiber and the gypsum powder into the polypropylene, has more excellent antistatic property and more excellent impact resistance and bending resistance and can provide decrease of the surface resistivity 10 to 100 times on average.

Description

technical field [0001] The invention relates to an antistatic and anti-bending polypropylene dust-proof fan blade, and also relates to a preparation method for the anti-static and anti-bending polypropylene dust-proof fan blade. Background technique [0002] Polypropylene is an important general-purpose plastic with excellent comprehensive properties such as impact resistance, optical bending resistance, electrical insulation, and dimensional stability. Therefore, polypropylene is widely used in many optical products such as automotive parts, fan blades, packaging boxes, plates and other applications. Although polypropylene has many advantages, due to its chemical structure, in the production of products, when the material is separated from the metal mold, it is easy to generate charge enrichment on the surface, which will lead to the adsorption of dust in the air to the surface of the product, resulting in a decline in product yield, or even Electronic product is malfuncti...

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Problems solved by technology

However, due to its poor compatibility with polypropylene materials, it is difficult to be effectively dispersed, and it is easy to migrate to the surface of polypropylene products in a short time. In addition, after the product is washed with water, the antistatic agent is easily washed off, resulting in The antistatic life of the product is not long

[0007] Another method is to add non-ionic surfactants such as glyceryl stearate. Relatively speaking, this surfactant has better compatibility with polypropylene, but it needs a larger amount to achieve good anti-corrosion properties. Electrostatic effect, at the same time, due to a large amount of glycerol stearate enriched on the surface of the product, the gas cannot be completely discharged during the production of the product, oil spots appear on the surface of the product, and the yield rate drops

[0008] The existing fan blades made of polypropylene as the main raw material generally do not have dust-proof effect or the dust-proof effect is not ideal. Therefore, it is necessary to develop a fan blade that can maintain the excellent impact resistance and optical bending resistance of polypropylene and has good The antistatic polypropylene material with dustproof effect to make fan blades is one of the major technical issues that researchers in this field have been working hard to study.

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