Multi-element modified phenolic resin/basalt fiber composite board and preparation method thereof

Abstract

The invention provides a multi-element modified phenolic resin / basalt fiber composite board and a preparation method thereof, and relates to the field of building materials. The multi-element modifiedphenolic resin / basalt fiber composite board is prepared from the following raw materials in parts by weight: 130 to 150 parts of multi-element modified phenolic resin, 50 to 60 parts of basalt fiber,30 to 50 parts of carboxyl-terminated nitrile rubber modified epoxy resin, 1 to 3 parts of thiourea modified diethylenetriamine, 10 to 20 parts of graphite powder, 1 to 3 parts of butyl titanate, 1 to 3 parts of polyvinyl acetal, 5 to 10 parts of nanometer cerium borate, 20 to 30 parts of basic magnesium sulfate whiskers, 10 to 20 parts of aluminum borosilicate whiskers, 3 to 6 parts of ammoniumpolyphosphate, 10 to 20 parts of barium hydroxide, 7 to 12 parts of melamine, 4 to 8 parts of a silane coupling agent and 120 to 130 parts of absolute ethyl alcohol. The multi-element modified phenolic resin / basalt fiber composite board provided by the invention has excellent compression resistance, fracture resistance and tensile property, reaches a heat conductivity coefficient of 0.022 W / (m.K)and a flame retardant grade of V-0, and has excellent heat preservation and flame retardant properties.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a multi-component modified phenolic resin / basalt fiber composite board and a preparation method thereof. Background technique [0002] According to statistics, in fire accidents, 80% of the people died from the toxic gases and particles released by the burning of a large number of flammable polymer materials at the fire scene. Toxic gas will cause breathing difficulties or even suffocation, and smoke will reduce visibility, directly hindering evacuation and escape, and bring great difficulties to firefighters in rescue work. Therefore, the state puts forward more stringent requirements for fireproof and thermal insulation materials used in buildings. [0003] At present, the widely used fireproof insulation materials on the market mainly include polyurethane foam board, polystyrene foam board, phenolic resin foam board, rock wool board (strip), foam cement and foam glass, etc. ...

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Problems solved by technology

Moreover, the phenolic foam resin insulation board has good thermal insulation performance, and its thermal conductivity is about 0.023W / (m·k), which is far lower than the inorganic and organic external wall insulation products commonly used in the market at present, and can achieve higher thermal insulation performance. Energy-saving effect, using excellent fireproof performance. The insulation layer uses phenolic foam and is compounded with other materials for building insulation. It can basically reach the national fire prevention standard A level, fundamentally eliminating the possibility of external insulation fires, but its shortcomings are also very large. Obviously, phenolic insulation board is easy to oxidize and deform, has poor bonding performance with fillers, high water absorption, high brittleness and is easy to break. Therefore, the domestic market still lacks a fireproof insulation product with both high performance and practicability.

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