A high-performance flame-retardant self-cleaning lighting board material that is easy to melt and not drip and its preparation method

Abstract

The invention discloses a high-performance flame-retardant self-cleaning lighting board material that is easy to melt and not drip and its production process, including: polyolefin resin, low melting point resin, flame retardant, compatibilizer, antioxidant and The lubricant is dried and mixed to obtain a compound; the compound is added from the main feed port of the screw extruder, and the continuous fiber is added by the melt impregnation method or the discontinuous fiber is added through the side feed port of the extruder, extruded and granulated to obtain The glass fiber reinforced polyolefin flame-retardant composite material is extruded by a multi-roller calender to obtain a high-performance flame-retardant lighting board that is easy to melt and not drip. The daylighting panel of the present invention has the property of being easy to melt and break, and it can break holes by itself in the temperature range of 100-150°C, which is beneficial to the escape of toxic smoke and achieves the purpose of reducing casualties. At the same time, the addition of reinforcing fibers makes the material have higher melt strength and will not melt and drip within the melting temperature range.

Description

technical field [0001] The invention belongs to the technical field of fusible daylighting boards, in particular to a fusible non-dripping high-performance flame-retardant daylighting board and a production process thereof. Background technique [0002] Daylighting board refers to a light-transmitting sheet material used to replace opaque materials for building roofs. It is now widely used in industrial production workshops, storage warehouses, commercial buildings, airports, gymnasiums, and bio-based buildings in villages and towns. At present, most daylighting panels are made of polycarbonate, glass fiber reinforced epoxy resin and other materials, which have the characteristics of light weight, light transmission, easy installation, and beautiful appearance. However, there are still many deficiencies in the existing daylighting panel materials: first, due to the flammability of polymer materials, it is very likely to form passive fires under external fire conditions, such...

AI Technical Summary

Problems solved by technology

However, there are still many deficiencies in the existing daylighting panel materials: first, due to the flammability of polymer materials, it is very likely to form passive fires under external fire conditions, such as fireworks, cigarette butts falling, and There is a risk of fire caused by electrical short circuit and other situations; second, after a fire occurs, the lighting panel is not easy to melt, so a large amount of toxic smoke cannot be released in time, which can easily cause a large number of casualties

However, the fusible lighting panel technology is mainly monopolized by foreign companies, usually prepared from modified polyester materials, the material cost is high, and the fusible performance is not ideal (it needs to be around 150°C to start melting)

If ordinary low-melting point polymers are used as the base material of the fusible daylighting sheet, it will lead to problems such as low mechanical properties and easy dripping of the daylighting sheet, which cannot meet the requirements of use

At the same time, because the lighting panels are usually located on the top of the building and other places that are not easy to clean manually, after a certain period of use, they will often be polluted by water stains, dust, etc., which will affect the lighting and aesthetics.

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