Nitrile rubber composition and foaming material thereof

• Main Authors: LU CHONG, WANG DAXIAN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention provides a nitrile rubber composition, and the composition is mainly prepared from the following raw materials in parts by weight: 200 parts of nitrile rubber; 10-40 parts of phenolic resin; 10-30 parts of polyvinyl butyral; and 30-40 parts of modifier. The invention uses phenolic resin as a vulcanizing agent to overcome the problem that sulfur corrodes pipes and causes the pipes toturn black when the material is taken as an insulation layer of metal pipes, especially copper pipes and zinc-coated steel pipes and the like; and no corrosion or blackening will occur in contact or indirect contact with electronic circuit boards or other metal products with a copper or silver cladding. Adding a variety of anti-aging modifiers can maintain the elasticity for a long time without cracking. The foaming materials made from the material can be used in packaging, construction, building materials, electronics, transportation, agriculture and other fields. 本发明提供了一种丁腈橡胶组合物，主要含有以下原料：丁腈橡胶100重量份；酚醛树脂10～40重量份；聚乙烯醇