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Impact resisting weather-proof polypropylene and preparation method thereof

A weather-resistant polypropylene and polypropylene technology, applied in the field of polypropylene modification, can solve the problems of high cost, poor fluidity and weather resistance of impact-resistant weather-resistant polypropylene, and achieve excellent fluidity, good synergy, excellent The effect of impact performance and weather resistance

Active Publication Date: 2010-10-27
WUHAN JINFA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of high cost, poor fluidity and weather resistance of the existing impact-resistant weather-resistant polypropylene, and to provide an impact-resistant weather-resistant polypropylene with excellent fluidity, excellent impact performance and weather resistance. Propylene

Method used

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  • Impact resisting weather-proof polypropylene and preparation method thereof
  • Impact resisting weather-proof polypropylene and preparation method thereof
  • Impact resisting weather-proof polypropylene and preparation method thereof

Examples

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Embodiment Construction

[0028] The preparation method of embodiment is:

[0029] Step 1: take each raw material by weight;

[0030] Step 2: Stir and mix polypropylene resin, polyethylene resin, antioxidant, partial coupling agent, light stabilizer, processing aid and colorant in a mixer for 5 minutes to obtain a mixture;

[0031] Step 3: Mix the remaining coupling agent and filler in a high-speed mixer (rotating at 1200 RPM) for about 6 minutes according to the proportion to obtain a mixture;

[0032] Step 4: Extrude and granulate the mixture of step 2 and step 3 respectively from the main feeding port and the side feeding port of the twin-screw extruder to finally obtain the product. The processing temperature is 200°C, the screw speed is 450RPM, the length-to-diameter ratio of the screw is 32, the temperature control zone of the extruder is zone 11, and the side feeding port is located in zone 4.

[0033]The concrete composition of comparative example and embodiment is listed in Table 1, and conv...

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Abstract

The invention discloses impact resisting weather-proof polypropylene and a preparation method thereof. The impact resisting weather-proof polypropylene comprises the following components in percentage by weight: 55-78 percent of polypropylene, 5-15 percent of polyethylene, 15-30 percent of filler, 0.2-1.0 percent of antioxygen, 0.2-1.0 percent of light stabilizer and 0.2-1.0 percent of coupling agent. The obtained polypropylene material has excellent liquidity as well as excellent impact performance and weather resistance.

Description

technical field [0001] The invention relates to the technical field of polypropylene modification, in particular to an impact-resistant weather-resistant polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is widely used in various fields because of its excellent comprehensive properties, wide sources, light weight and low price. However, PP also has some shortcomings. The biggest disadvantage is poor cold resistance and low temperature brittleness; secondly, the impact resistance of PP after filling and modification is poor, and the parts are easy to break after falling; moreover, because PP contains unstable The tertiary carbon group is prone to aging and degradation after being exposed to light, heat and oxygen, resulting in performance degradation and discoloration. These shortcomings limit the use of PP, especially the application of PP in outdoor products, especially for products that are placed outdoors for a long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/06C08L23/08C08K13/06C08K3/34C08K3/26
Inventor 王爱东杨霄云陶四平肖鹏张春怀
Owner WUHAN JINFA TECH CO LTD
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