High-temperature-resistant modified polyvinyl shielding material and preparation method thereof
The invention provides a high-temperature-resistant modified polyvinyl shielding material which is prepared from the following raw materials in parts by weight: 10-12 parts of high-density polyethylene, 6-8 parts of graft-modified ultra-high molecular weight polyethylene, 80-85 parts of radiation sh...
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| creator | CHEN MIAO AN RAN WU RONGJUN CHEN YAN YU MING ZHANG DUOFEI LI XIAOLING |
| description | The invention provides a high-temperature-resistant modified polyvinyl shielding material which is prepared from the following raw materials in parts by weight: 10-12 parts of high-density polyethylene, 6-8 parts of graft-modified ultra-high molecular weight polyethylene, 80-85 parts of radiation shielding substances and 0.5-3 parts of processing aids. The high-temperature-resistant modified polyvinyl shielding material can tolerate a high temperature of 190 DEG C or above under a medium-break water loss accident, can still maintain the integrity of a shielding structure and the effectiveness of shielding protection, and is a good radiation shielding material for a nuclear island area of a reactor of a nuclear power station. The material is applied to multiple nuclear power stations for test verification, and it is proved that the high-temperature-resistant modified polyvinyl shielding material can completely meet the radiation protection design requirements of the nuclear power stations in the whole service |
| format | Patent |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DECONTAMINATION ARRANGEMENTS THEREFOR MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT THEIR PREPARATION OR CHEMICAL WORKING-UP TREATING RADIOACTIVELY CONTAMINATED MATERIAL USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | High-temperature-resistant modified polyvinyl shielding material and preparation method thereof |
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