High-strength environment-friendly flame-retarding fiberboard and manufacturing method thereof

Abstract

The invention discloses a high-strength environment-friendly flame-retarding fiberboard which comprises the following raw materials of plant fibers, flame retardants, adhesives and waterproofing agents, wherein the weight ratio of the plant fibers to the flame retardants to the adhesives to the waterproofing agents is 100:(3-30):(3-30):(0.1-4). The invention also discloses a manufacturing method of the high-strength environment-friendly flame-retarding fiberboard. Not only are the mechanical properties of the flame-retarding fiberboard obviously improved, but also the combustion property can conform to the regulations of GB8624 Class B or Class C, and the formaldehyde emission, the smoke volume produced and the smoke toxicity are also reduced. Thus, the high-strength environment-friendly flame-retarding fiberboard has good quality and low price, can be widely applied to the fields of building furnishings, flame-retarding furniture production, flame-retarding floor production, wooden fireproof door production, ship and vehicle furnishings and the like, and has good economical and social benefits.

Description

technical field [0001] The invention relates to a fiberboard and a preparation method thereof, in particular to a high-strength environment-friendly flame-retardant fiberboard and a preparation method thereof. Background technique [0002] The Ministry of Public Security and the Ministry of Construction promulgated and implemented the "Code for Fire Protection Design of Building Interior Decoration" in 1992, and the General Administration of Quality Supervision, Inspection and Quarantine issued GB 8624-2006 "Classification of Combustion Performance of Building Materials and Products" and GB / T 20284-2006 in 2006 Five mandatory standards including "Single Combustion Test of Building Materials or Products", GB / T20285-2006 "Classification of Toxicity Hazards for Smoke Production of Materials" and GB20286-2006 "Requirements and Labeling of Flame-Retardant Products and Components in Public Places", Specific provisions have been made on the flame retardant performance of building d...

AI Technical Summary

Problems solved by technology

Phosphorus-nitrogen flame retardants have good flame retardant properties, wide sources, and low prices, but the main problem of using phosphorus-nitrogen flame retardants to produce flame-retardant fiberboards is: compared with ordinary fiberboards of the same specification, the mechanical properties are reduced by 15~ 45%; hygroscopicity and water absorption thickness expansion rate increase, unable to meet processing and use requirements; at high temperature, phosphorus-nitrogen flame retardants promote dehydration and carbonization of wood components into non-activated carbon, resulting in an increase in the concentration of carbon monoxide in the smoke, causing fires Increased hazard of smoke

[0007] To sum up, the current flame retardancy, mechanical properties, formaldehyde emission, water absorption thickness expansion rate, smoke production and smoke toxicity of the current fiberboards are still not up to the requirements of national standards.

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