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Anti-radiation food package material based on silicon nitride and production method thereof

A technology for food packaging and silicon nitride, applied in the field of pipe fittings, can solve the problem that the radiation protection of cable insulation materials is difficult to meet the actual needs, and achieve the effects of excellent radiation protection performance, simple steps, and easy availability of raw materials

Inactive Publication Date: 2018-01-16
WUHU JIAHE FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, cable insulation materials are difficult to meet the actual needs in terms of radiation protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] At 25°C, polymethacrylonitrile (weight average molecular weight 80000), toughening agent (ethylene-vinyl acetate copolymer), antioxidant (brand 1010 antioxidant), silicon nitride, arsenic trioxide, Expanded vermiculite and rare earth oxide (lanthanum oxide) were mixed and melted at 160°C for 40 minutes according to the weight ratio of 100:5:0.5:4:2:13:0.1, and then extruded by an extrusion molding machine to obtain a nitride-based Silicon radiation protection food packaging material.

Embodiment 2

[0024] At 25°C, polymethacrylonitrile (weight average molecular weight 40000), toughener (styrene-butadiene thermoplastic elastomer), antioxidant (grade 168 antioxidant), silicon nitride, Arsenic trioxide, expanded vermiculite and rare earth oxide (praseodymium oxide) were mixed and melted at 150°C for 30 minutes according to a weight ratio of 100:3:0.3:2:1:10:0.05, and then extruded by an extrusion molding machine to obtain a Radiation-proof food packaging material of silicon nitride.

Embodiment 3

[0026] At 25°C, polymethacrylonitrile (weight average molecular weight: 100,000), toughening agent (acrylonitrile-butadiene-styrene copolymer), antioxidant (grade 168 antioxidant), nitriding Silicon, arsenic trioxide, expanded vermiculite and rare earth oxide (rubidium oxide) were mixed and melted at 170°C for 50 minutes at a weight ratio of 100:8:0.8:6:2.2:15:0.15, and then extruded by an extrusion molding machine to produce A radiation-proof food packaging material based on silicon nitride was obtained.

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PUM

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Abstract

The invention discloses an anti-radiation food package material based on silicon nitride and a production method thereof. The anti-radiation food package material comprises polymethacrylonitrile, a flexibilizer, an anti-oxidant, silicon nitride, arsenic trioxide, expanded vermiculite and rare earth oxide; wherein, by referring 100 weight parts of polymethacrylonitrile, the content of the flexibilizer is 3-8 weight parts, the content of the anti-oxidant is 0.3-0.8 weight parts, the content of the silicon nitride is 2-6 weight parts, the content of arsenic trioxide is 1-2.2 weight parts, the content of the expanded vermiculite is 10-15 weight parts, and the content of the rare earth oxide is 0.05-0.15 weight parts. The anti-radiation food package material has excellent mechanical propertiesand anti-radiation performance.

Description

technical field [0001] The invention relates to pipe fittings, in particular to a radiation-proof food packaging material based on silicon nitride and a preparation method thereof. Background technique [0002] The cable insulation material is an important part of the cable. It not only plays the role of insulation, but also plays the role of heat insulation and anti-corrosion. Once the insulation layer of the outer layer of the metal core is damaged, the cable will be greatly reduced. performance. At present, cable insulation materials are difficult to meet the actual needs in terms of radiation protection. Contents of the invention [0003] The object of the present invention is to provide a radiation-proof food packaging material based on silicon nitride and a preparation method thereof, through which the radiation-proof food packaging material based on silicon nitride has excellent mechanical properties and radiation-proof properties. [0004] In order to achieve the...

Claims

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Application Information

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IPC IPC(8): C08L33/22C08L23/08C08L25/10C08L55/02C08K13/04C08K7/26C08K3/34C08K3/20C08K3/22
Inventor 俞贤龙
Owner WUHU JIAHE FOOD