High-performance flame-retardant self-cleaning daylighting panel material easy to melt and break and free of dripping and production process thereof

Abstract

The invention discloses a high-performance flame-retardant self-cleaning daylighting panel material easy to melt and break and free of dripping and a production process thereof. The production processcomprises the following steps: taking and drying polyolefin resin, low-melting-point resin, a flame retardant, a compatilizer, an antioxidant and a lubricant, and mixing to obtain a mixture; adding the mixture from a main feeding port of a screw extruder, adding continuous fibers by adopting a melt impregnation method or adding non-continuous fibers through a side feeding port of the extruder, performing extrusion granulation to obtain a glass fiber reinforced polyolefin flame-retardant composite material, and performing extrusion molding through a multi-roll calender to obtain the high-performance flame-retardant daylighting panel which is easy to melt and break and free of dripping. The daylighting panel disclosed by the invention has fusible breaking performance, and can be automatically broken within a temperature range of 100-150 DEG C, so that escape of toxic smoke is facilitated, and the purpose of reducing casualties is achieved. Meanwhile, due to the addition of the reinforcing fibers, the material has higher melt strength and cannot be molten and drop within a melting breaking 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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