Polyurethane rubber for sealing ceramic piston and preparation method thereof

Polyurethane rubber for sealing ceramic piston and preparation method thereof

The invention belongs to the technical field of polyurethane rubber products, and particularly relates to polyurethane rubber for sealing a ceramic piston and a preparation method of the polyurethane rubber. The invention relates to a preparation method of a polyurethane rubber sheet for sealing a c...

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Hauptverfasser: SU JINMING, CHEN HAILIANG, DING PENG, SONG SHUZHENG
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator SU JINMING
CHEN HAILIANG
DING PENG
SONG SHUZHENG
description The invention belongs to the technical field of polyurethane rubber products, and particularly relates to polyurethane rubber for sealing a ceramic piston and a preparation method of the polyurethane rubber. The invention relates to a preparation method of a polyurethane rubber sheet for sealing a ceramic piston. The polyurethane rubber sheet comprises the following components: a component A: a curing agent; the component B is prepared from an isocyanato-terminated polyurethane prepolymer; the component B is prepared from the following raw materials: low-molecular-weight polyol, hydrophobic modified polyester polyol, diisocyanate, a wear-resistant agent and a polymerization inhibitor; the polyurethane elastomer which is high in high-temperature hardness, small in high and low temperature hardness change and high in tearing strength is obtained after the component A and the component B are cured in proportion, and the polyurethane elastomer is good in abrasion resistance and hydrophobic effect and meets the re
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Polyurethane rubber for sealing ceramic piston and preparation method thereof
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