Composite-rare-earth-metal-salt-modified high-heat-resistance PVC-NBR (polyvinyl chloride-nitrile-butadiene rubber) composite foam board and preparation method thereof

Abstract

The invention discloses a composite-rare-earth-metal-salt-modified high-heat-resistance PVC-NBR (polyvinyl chloride-nitrile-butadiene rubber) composite foam board and a preparation method thereof. By using the PVC-NBR blend material as the composite board substrate and adding the modified material prepared by blending polyethyleneimine, pseudoboehmite, composite rare-earth metal salts, a silane coupling agent and the like, the heat resistance, mechanical properties and foamability of the composite board are improved. The prepared board has the advantages of uniform compact inside pores, smooth appearance, impact and fall resistance, environment friendliness and flame retardancy, and has outstanding application advantages in the aspect of novel green home decorating materials.

Description

technical field [0001] The invention relates to the technical field of PVC foam boards, in particular to a high heat-resistant PVC-NBR composite foam board modified by a compound rare earth metal salt and a preparation method thereof. Background technique [0002] PVC foam board has the characteristics of waterproof, flame retardant, acid and alkali resistance, moth resistance, light weight, heat preservation, sound insulation, shock absorption, etc. It is an ideal substitute for wood, aluminum and composite boards, and is widely used in passenger cars and train carriages Ceiling, box core layer, interior decoration panels, building exterior wall panels, interior decoration panels, office, residential, public building compartments, commercial decorative frames, clean room panels, ceiling panels, etc. [0003] Although PVC foam board has such a wide application space, its actual market share is low, especially in terms of home decoration materials. Unexpectedly, there are po...

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Problems solved by technology

[0003] Although PVC foam board has such a wide application space, its actual market share is low, especially in terms of home decoration materials. Satisfactory, there are potential safety hazards when using. In order to improve the comprehensive performance of PVC sheets, the most common method is to use polymer materials and inorganic fillers for blending modification.

In the article "Research on Flame Retardant NBR / PVC Foaming Materials", NBR and PVC are blended and foamed to obtain products with relatively good mechanical properties, but their heat resistance is poor, and flame retardants need to be added to achieve flame retardant effects, but for The mechanical properties of the material are greatly affected, and the use is limited