High-wear-resistance polyphenylene sulfide magnetic material and preparation method thereof

A technology of polyphenylene sulfide and magnetic materials, applied in the field of functional plastics, can solve problems such as being susceptible to mechanical wear, deformation of magnetic products, and increased use costs, and achieve the effects of avoiding equipment shutdown, prolonging service life, and low wear rate

Pending Publication Date: 2022-05-27
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these magnetic products are extremely susceptible to mechanical wear due to frequent rotation during use, resulting in adverse consequences such as deformation and cracks in the magnetic products. Therefore, such parts are updated frequently, which increases their cost of use.

Method used

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  • High-wear-resistance polyphenylene sulfide magnetic material and preparation method thereof
  • High-wear-resistance polyphenylene sulfide magnetic material and preparation method thereof
  • High-wear-resistance polyphenylene sulfide magnetic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First, weigh 15.3 parts of PPS resin, 55 parts of ferrite magnetic powder, 0.6 parts of silane coupling agent KH-550, 12 parts of PTFE micropowder, 3 parts of nanoparticle MoS2, 1.3 parts of antioxidant Ciba 168, 1.4 parts of polysilicon Oxane and 1.4 parts of phthalate plasticizer; 55 parts of ferrite magnetic powder were soaked in ethanol solution of silane coupling agent for 6 hours, and then placed in an oven at 110 ° C for drying; Hot internal mixer and twin-screw extruder, the modified ferrite magnetic powder and 13.75 parts of PPS resin are alternately put into the internal mixer for internal mixing, the total amount of materials is 5±0.5Kg, and the total mixing time is 5±2 minutes , to produce magnetic masterbatch with a magnetic powder content of 80%; finally, the remaining 1.55 parts of PPS resin, PTFE micropowder, nano-particle MoS2, plasticizer, antioxidant and lubricant are mixed at high speed and then added to the dual-feed through the main feeding port. S...

Embodiment 2

[0035] First, weigh 13.5 parts of PPS resin, 50 parts of ferrite magnetic powder, 0.5 part of silane coupling agent KH-550, 10 parts of PTFE fine powder, and 3 parts of nanoparticle Si 3 N 4 , 1 part of antioxidant Ciba 1010, 1 part of long-chain unsaturated fatty acid salt lubricant, 1 part of phosphate ester plasticizer; 50 parts of ferrite magnetic powder were soaked in ethanol solution of silane coupling agent for 6 hours After that, it was dried in an oven at 110 °C; secondly, the internal mixer and twin-screw extruder were preheated, and the modified ferrite magnetic powder and 8.8 parts of PPS resin were alternately put into the internal mixer for internal mixing. The total amount of feeding materials is 5±0.5Kg, and the total mixing time is 5±2 minutes, and the magnetic masterbatch with a magnetic powder content of 85% is produced; finally, the remaining 4.7 parts of PPS resin, PTFE micropowder, nanoparticle Si 3 N 4 , plasticizers, antioxidants and lubricants are mi...

Embodiment 3

[0037] First, weigh 15.35 parts of PPS resin, 55 parts of anisotropically bonded RuFeB magnetic powder, 0.6 parts of silane coupling agent KH-550, 12 parts of PTFE micropowder, and 3 parts of nanoparticle SiO 2 , 1.3 parts of antioxidant Ciba 195, 1.4 parts of ethylene stearamide lubricant and 1.4 parts of fatty acid ester plasticizer; put 55 parts of anisotropically bonded RuFeB magnetic powder in ethanol solution of silane coupling agent After soaking for 8 hours, it was placed in an oven at 110 °C for drying; secondly, the internal mixer and twin-screw extruder were preheated, and the modified anisotropically bonded RuFeB magnetic powder and 13.75 parts of PPS resin were alternately put into Mixing in an internal mixer, the total amount of materials is 5±0.5Kg, the total mixing time is 5±2 minutes, and the magnetic masterbatch with a magnetic powder content of 80% is produced; finally, the remaining 1.6 parts of PPS resin, PTFE micropowder, nanoparticle SiO 2 , plasticizers...

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Abstract

The invention provides a high-wear-resistance polyphenylene sulfide magnetic material and a preparation method thereof, and relates to the technical field of functional plastics. The composite material is prepared from the following components in parts by weight: 13.5 to 20.6 parts of PPS resin, 50 to 56 parts of magnetic powder, 10 to 14 parts of PTFE micro powder, 3 to 4 parts of nano particles, 0.5 to 0.6 part of silane coupling agent, 1 to 1.6 parts of antioxidant, 1 to 1.6 parts of lubricant and 1 to 1.6 parts of plasticizer. When the magnetic material is prepared, magnetic powder is modified in advance, the modified magnetic powder and PPS resin are prepared into magnetic master batches, then the magnetic master batches are added into a side feeding port of an extruder, the PPS resin, PTFE micro powder, nano particles, an antioxidant, a plasticizer and a lubricant which are evenly mixed are added into a main feeding port of the extruder to be subjected to melt blending, extrusion and granulation, and the magnetic material is prepared. The PPS magnetic material prepared by the invention has the characteristics of high magnetic property and wear resistance, can solve the problem that parts are damaged due to serious frictional wear of some magnetic materials, so that equipment is stopped, and is beneficial to prolonging the service life of the magnetic plastic parts and saving the use cost.

Description

technical field [0001] The invention relates to the technical field of functional plastics, in particular to a high wear-resistant polyphenylene sulfide magnetic material and a preparation method thereof. Background technique [0002] Magnetic plastic is a new type of polymer functional material developed abroad in the 1970s. It has both the properties of polymers and the properties of magnetic substances. It is one of the important basic materials in the field of modern science and technology. Magnetic plastics can be divided into structural type and composite type according to the composition. / Magnets made by composite machining. Compared with traditional sintered magnetic materials, magnetic plastics have the following advantages: light weight, flexibility, low molding shrinkage, flexible product design, can be made into thin-walled or complex-shaped products, can be continuously molded, mass-produced, and can be added The insert does not require post-processing, can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L27/18C08K9/06C08K3/01C08K3/22C08K3/30C08K3/36C08K3/34C08J3/22
CPCC08L81/02C08J3/226C08K2201/011C08K2003/3009C08K2003/2265C08J2381/02C08J2481/02C08L27/18C08K9/06C08K3/01C08K3/22C08K3/30C08K3/36C08K3/34
Inventor 孟祥军李兰军李茂彦陆体超刘曙阳
Owner NANJING JULONG SCI&TECH CO LTD
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