Flame-retardant artificial quartz stone plate and method for preparing same

Abstract

The invention discloses a flame-retardant artificial quartz stone plate and a method for preparing the same. The flame-retardant artificial quartz stone plate comprises granular materials with the sizes of 0.075-5 mm, quartz powder with the size of 0.005-0.045 mm, colored pigment, silane coupling agents, unsaturated polyester resin, curing agents and flame retardants. The method includes premixing weighed quartz granules, weighed glass granules, the weighed flame retardants and the weighed silane coupling agents in double-planet stirring barrels to obtain premixed materials; mixing the premixed materials with one another to obtain first mixed materials, adding the quartz powder into the first mixed materials and mixing the quartz powder and the first mixed materials with one another to obtain mixed materials; feeding the mixed materials into dispersing machines, dispersing the mixed materials, then metering the mixed materials, feeding the mixed materials into distributing machines and distributing the mixed materials; carrying out vibration compression molding on the mixed materials by the aid of compression equipment under -0.1 Mpa vacuum conditions under the pressures of 50-200 t at the vibration frequencies of 30-55 Hz for the time of 60-600 s; feeding the mixed materials in solidifying equipment after vibration compression is carried out on the mixed materials and solidifying the mixed materials at the temperatures of 80-130 DEG C for the solidifying time of 30-180 minutes; placing the mixed materials at the normal temperature, completely cooling the mixed materials, then feeding the mixed materials in plate thickness defining machines to define the thicknesses of the mixed materials and then polishing the mixed materials by the aid of water-mill polishing equipment. The flame-retardant artificial quartz stone plate and the method have the advantage that excellent effects of enhancing the flame-retardant properties of artificial quartz stone products can be realized.

Description

technical field [0001] The invention belongs to the technical field of artificial quartz stone plates, and in particular relates to a flame-retardant artificial quartz stone plate and a preparation method thereof. Background technique [0002] Artificial quartz stone is composed of more than 90% of natural quartz and about 10% of colorants, resins and other additives for adjusting bonding and curing. It is a plate processed by negative pressure vacuum, high-frequency vibration molding, heating and curing (the temperature is determined according to the type of curing agent). Pressure resistance, high temperature resistance, corrosion resistance, anti-penetration and other characteristics. [0003] At present, quartz stone products are mainly used in kitchen countertops, bathroom countertops, bar counters, coffee tables, floors, and interior and exterior walls. Due to its rich colors and rich product designs, it can replace natural stone, high-grade ceramics, wood, and metal ...

AI Technical Summary

Problems solved by technology

The resin content of quartz stone produced by most domestic quartz stone manufacturers is relatively high, and the resin content is generally above 10%, and the production time is long, which increases the production cost of the product and finally increases the selling price of the product

In addition, the high resin content leads to a low thermal expansion coefficient of the finished quartz stone, poor durability of the plate, easy aging, fading, low fire rating, and poor heat resistance, which greatly shortens the service life of the plate