Nanopowder composite polymer memory material

A memory material and nano-powder technology, which is applied in the field of new polymer memory materials, can solve the problems of high voltage resistance, low breakdown voltage flexibility, and non-softness, so as to improve product quality, broaden the application field, and achieve softness. good sex effect

Inactive Publication Date: 2003-03-12
张万喜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main disadvantage of ordinary polymer memory materials is that they are not resistant to high voltage, and generally can only withstand voltages below 10KV, so their application in the power industry is greatly limited. At the same time, due to poor toughness and softness, it is difficult to process them into 0.1mm Heat-shrinkable thin tubes up to 1mm, (these thin tubes are new materials urgently needed by the electronic information and home appliance industries), and these problems are mainly due to the addition of metal oxides (aluminum hydroxide, titanium dioxide) and Inorganic filler particles are relatively large, resulting in uneven blending with polymer base villages and the existence of micro-holes, resulting in poor performance such as breakdown voltage resistance and flexibility.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A nano-powder composite polymer memory material is composed of the following components by weight percentage:

[0024] Linear Low Density Polyethylene (LLDPE) 20.1

[0025] Ethylene-vinyl acetate copolymer (EVA) 39.6

[0026] Chlorosulfonated polyethylene (CPE) 5.8

[0027] Ethylene Propylene Rubber (EPR) 28.8

[0028] Carbon black 1.4

[0029] Nanoscale calcium carbonate 4.3.

[0030] Its preparation method: weigh the materials according to the above formula, first blend LLDPE, EVA, CPE and EPR on an open mill, the blending temperature is 145-155°C, and make polymer substrate blended particles after homogenization, In the internal mixer, the polymer substrate particles and nano-scale calcium carbonate powder are blended, the blending temperature is 155-165 ° C, and then carbon black is added for blending, homogenized, granulated, and shaped on the extruder. 60 radiation source or electron accelerator, the radiation dose is 14Mrd, use compressed air and mechanical ...

Embodiment 2

[0032] A nano-powder composite polymer memory material consists of the following components by weight percentage:

[0033] Linear Low Density Polyethylene (LLDPE) 14

[0034] Ethylene-vinyl acetate copolymer (EVA) 38.8

[0035] Silicone rubber 14

[0036] Antioxidant 1010 1.6

[0037] Nanoscale Aluminum Hydroxide 31

[0038] Nanoscale Iron Oxide 0.6.

[0039] Its preparation method:

[0040] Weigh the materials according to the above formula, first blend LLDPE, EVA, and silicone rubber on an open mill at a temperature of 150°C, and make polymer substrate blended particles after homogenization. Molecular substrate particles are blended with nano-scale aluminum hydroxide and nano-scale iron oxide powder at a blending temperature of 155°C to 165°C, then antioxidant 1010 is added for blending at a blending temperature of 165°C to 175°C, and homogenized After granulation, molding on an extruder, irradiate in a Co-60 radiation source or an electron accelerator, the irradiation...

Embodiment 3

[0042] A nano-powder composite polymer memory material consists of the following components by weight percentage:

[0043] Linear Low Density Polyethylene (LLDPE) 59.4

[0044] Ethylene Propylene Rubber (EPR) 14.9

[0045] Flame retardant (FR-E) 22.3

[0046] Nanoscale Titanium Dioxide 3

[0047] Antioxidant 1010 0.4.

[0048] Its preparation method:

[0049] Weigh the materials according to the above formula, first blend LLDPE and EPR on the open mill, the blending temperature is 145°C-150°C, after homogenization, make polymer substrate blended particles, and blend high Molecular substrate particles are blended with nano-scale titanium dioxide powder at a blending temperature of 155°C to 165°C, and then antioxidant 1010 and FR-E are added for blending at a blending temperature of 165°C to 175°C. After homogenization, Granulate, shape on extruder, irradiate in Co-60 radiation source or electron accelerator, radiation dose is 10Mrd, use compressed air and mechanical expans...

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Abstract

A nano-class composite high-molecular memory material is prepared from linear low-density polyethene, nano-class, metal oxides, inorganic nanoparticles, and assistant through mixing and cross-linking. Its contains LLDPE, EVA, CPE, EPR, silicone rubber, nano calcium carbonate, nano aluminium hydroxide, nano iron oxide, nano TiO2, nano zinc oxide, nano SiO2, carbon black, flame retardant FR-E, antioxidant 1010, and zinc stearate. Its advantages are high break-through voltage (more than 10KV) and good flexiblity.

Description

technical field [0001] The invention relates to a novel polymer memory material, in particular to a nano powder modified polymer memory material. Background technique [0002] At present, the main disadvantage of ordinary polymer memory materials is that they are not resistant to high voltage, and generally can only withstand voltages below 10KV, so their application in the power industry is greatly limited. At the same time, due to poor toughness and softness, it is difficult to process them into 0.1mm Heat-shrinkable thin tubes up to 1mm, (these thin tubes are new materials urgently needed by the electronic information and home appliance industries), and these problems are mainly due to the addition of metal oxides (aluminum hydroxide, titanium dioxide) and The inorganic filler particles are relatively large, resulting in uneven blending with the polymer base village and the existence of micro-holes, making it low in breakdown voltage resistance, flexibility, and the like....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/36C08L23/04
Inventor 张万喜江雷周华起张长春孙国恩
Owner 张万喜
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