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A kind of corrosion-resistant high-toughness polyphenylene sulfide rare earth composite material and preparation method thereof

A composite material, polyphenylene sulfide technology, is applied in the field of corrosion-resistant and high-toughness PPS rare earth composite material and its preparation, and achieves the effects of excellent toughness and excellent corrosion resistance.

Active Publication Date: 2020-12-01
绵阳美胜邦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a corrosion-resistant high-toughness polyphenylene sulfide rare earth composite material and a preparation method thereof to solve the existing technical problems

Method used

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  • A kind of corrosion-resistant high-toughness polyphenylene sulfide rare earth composite material and preparation method thereof
  • A kind of corrosion-resistant high-toughness polyphenylene sulfide rare earth composite material and preparation method thereof
  • A kind of corrosion-resistant high-toughness polyphenylene sulfide rare earth composite material and preparation method thereof

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Experimental program
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Embodiment

[0027] 9 test products and 11 control products prepared by the formula and preparation method of the present invention were tested respectively, and the test samples were all injection molded by BT140 injection molding machine at a heating temperature range of 260-340°C.

[0028] The method that the product that the inventive method and prior art method make are tested:

[0029] (1) Impact strength is tested according to GB / T1843-2008;

[0030] (2) Material thermal stability test The material is injection molded after staying in the injection molding machine with a set temperature of 320°C for 20 minutes, and the impact strength of the material is tested;

[0031] (3) Corrosion resistance test Put the standard sample for testing impact strength in the mixture of PAG and HFC, keep the temperature at 80°C, soak for 90 days, take out the sample to see if it swells;

[0032] (4) Magnetic properties The maximum magnetic energy product (BH)max obtained by using the aforementioned i...

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Abstract

The invention relates to the technical field of a chemical engineering material, in particular to an anti-corrosion high-toughness polyphenylene sulfide rare-earth composite material and a preparationmethod thereof. The anti-corrosion high-toughness polyphenylene sulfide rare-earth composite material is prepared from the following ingredients in percentage by mass: 4.7 to 8.4 percent of PPS resin, 88 to 94 percent of rare earth magnetic powder, 0.5 to 1 percent of epoxy resin, 0.5 to 2 percent of sarin resin and 0.3 to 0.6 percent of processing aids. A product can be obtained through materialmixing extrusion. The preparation method is simple; the operation is easy; the product performance is excellent; good anti-corrosion performance and toughness are realized.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a corrosion-resistant high-toughness PPS rare earth composite material and a preparation method thereof. Background technique [0002] Injection-molded bonded magnets have the advantages of high dimensional accuracy and large shape freedom, and have been widely used in the fields of home appliances, automobiles, and electronic appliances for micro-motors and other applications. The pellets used in injection molding grade bonded magnets are made by mixing plastic resin and magnetic powder. In order to improve the magnetic properties of bonded magnets, it is necessary to use magnetic powders with higher residual magnetic flux density (Br) and coercive force (Hcj) to obtain a higher maximum energy product ((BH)max). Neodymium iron boron (NdFeB) and samarium iron nitrogen (SmFeN) magnetic powders have high saturation magnetization and can be used in high magnetic performa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/02C08L63/00C08L23/08C08K13/02C08K3/08C08K3/02C08K5/098
Inventor 刘斌孙彦功王冬梅黄兴元
Owner 绵阳美胜邦科技有限公司