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High-strength antimagnetic card case and preparation method thereof

A high-strength, magnetic card technology, applied in the field of card sleeves, can solve problems such as chip data loss, card sleeves cannot be magnetically protected, and card degaussing phenomena, etc.

Inactive Publication Date: 2017-05-10
ANHUI DAER INTELLIGENT CONTROL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing card sleeves often cannot effectively prevent the magnetic field, which in turn causes the card to be degaussed, resulting in data loss in the chip.

Method used

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Examples

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Effect test

preparation example Construction

[0012] The invention provides a method for preparing a high-strength antimagnetic ferrule, comprising:

[0013] 1) Mix polyethylene, ethylene-vinyl alcohol copolymer, nano barium sulfate, nano gadolinium oxide, calcium sulfate whisker, dibenzothiazole disulfide, wollastonite powder, silicon nitride and chloropropyltrimethoxysilane Refining to obtain a mixture;

[0014] 2) Mixing and molding rosin pentaerythritol ester, potassium titanate whiskers, wheat bran, acrylic copper complex fiber, wood fiber and the kneaded product to obtain a high-strength antimagnetic ferrule.

[0015] In step 1) of the present invention, the consumption of each material can be selected in a wide range, but in order to make the high-strength antimagnetic ferrule made have more excellent antimagnetic properties and mechanical properties, preferably, in step 1 ), relative to 100 parts by weight of polyethylene, the consumption of ethylene-vinyl alcohol copolymer is 47-56 parts by weight, the consumpti...

Embodiment 1

[0027] 1) Polyethylene, ethylene-vinyl alcohol copolymer, nano-barium sulfate (particle size: 30nm), nano-gadolinium oxide (particle size: 30nm), calcium sulfate whisker (diameter: 5um, length: 100um), disulfide Benzothiazole, wollastonite powder, silicon nitride and chloropropyltrimethoxysilane were mixed at 220°C for 5 hours at a weight ratio of 100:50:12:1.2:5:25:18:4:25 to prepare to get a mixture;

[0028] 2) Mix the mixture, rosin pentaerythritol ester, potassium titanate whisker (0.8um in diameter, 70um in length), wheat bran, acrylic copper complex fiber (15um in diameter), wood fiber (35um in diameter) according to 100 The weight ratio of :45:8:44:16:17 was mixed at 208°C for 50 minutes and extruded to obtain high-strength antimagnetic ferrule A1.

Embodiment 2

[0030] 1) Polyethylene, ethylene-vinyl alcohol copolymer, nano barium sulfate (particle size is 20nm), nano gadolinium oxide (particle size is 20nm), calcium sulfate whisker (diameter is 1um, length is 30um), disulfide Benzothiazole, wollastonite powder, silicon nitride and chloropropyltrimethoxysilane were mixed at 215°C for 4 hours according to the weight ratio of 100:47:11:0.8:3:21:14:3:22 to prepare to get a mixture;

[0031] 2) Mix the mixture, rosin pentaerythritol ester, potassium titanate whisker (0.2um in diameter, 10um in length), wheat bran, acrylic copper complex fiber (10um in diameter), wood fiber (25um in diameter) according to 100 : 34: 4: 42: 10: 12 by weight, kneading at 205°C for 40 minutes, and extruding to obtain a high-strength antimagnetic ferrule A2.

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Abstract

The invention discloses a high-strength antimagnetic card case and a preparation method thereof. The preparation method of the high-strength antimagnetic card case comprises the following steps: 1) mixing polyethylene, an ethylene-vinyl alcohol copolymer, nano barium sulfate, nano gadolinium oxide, calcium sulfate whiskers, dibenzothiazyl disulfide, wollastonite powder, silicon nitride and choropropyltrimethoxysilane to obtain a mixture; and 2) mixing and molding pentaerythritol ester of rosin, potassium titanate whiskers, wheat bran, acrylic fiber copper complexed fibers, wood fibers and the mixture to prepare the high-strength antimagnetic card case. The high-strength antimagnetic card case prepared by the method has excellent antimagnetic and mechanical properties; and meanwhile, the preparation method has the properties of easiness of obtaining the raw materials, simple procedures and easiness of being popularized.

Description

technical field [0001] The invention relates to a ferrule, in particular to a high-strength antimagnetic ferrule and a preparation method thereof. Background technique [0002] The card sleeve is the protective cover of the card, which mainly plays the role of protecting the card, such as moisture-proof, waterproof, anti-breakage, etc. Most of the existing ferrules are polymer ferrules, which can basically meet the functions of moisture-proof, waterproof and break-proof. But most of the existing cards are magnetic cards, such as bank cards, campus cards, ID cards, etc. are all with chips or magnetic stripes. The use of magnetic stripe cards will be interfered by many external magnetic factors, and degaussing often occurs: for example, the magnetic stripe card is too close to the magnetic buckle in the wallet or wallet, or even comes into contact with the magnetic buckle; Too close to or in contact with the buckle; contact with address books and notebooks with magnetic seal...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L97/02C08K13/04C08K7/08C08K3/30C08K3/22C08K5/47C08K3/34
CPCC08L23/06C08K2201/003C08K2201/004C08K2201/011C08K2201/014C08L2205/025C08L2205/035C08L2205/16C08L23/0861C08L97/02C08K13/04C08K7/08C08K2003/3045C08K2003/221C08K5/47C08K3/34
Inventor 杨潘李军唐锲王飞
Owner ANHUI DAER INTELLIGENT CONTROL SYST
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