Making method of artificial red coral bead string

Abstract

An artificial red coral bead string mainly comprises 5-20wt% of iron oxide red, 1-5wt% of strontium carbonate, 10-15wt% of unsaturated polyester crystal resin, and the balance of high magnesian calcite. A making method of the artificial red coral bead string comprises the following steps: carrying out a reaction on CaCl2, MgCl2, polyacrylic acid or polyaspartic acid in a reactor for 3-4d, centrifuging, and drying to obtain high magnesian calcite powder; respectively stirring strontium carbonate powder, the high magnesian calcite powder and FeCl2 in water, mixing the above obtained solutions for 2-4h, adding ammonia water, carrying out ultrasonic treatment for 20min, reacting in an autoclave at 160-200DEG C for 12-24h, and centrifuging to obtain red coral powder; mixing the unsaturated polyester crystal resin with the red coral powder, a curing agent and an accelerant for 4-6h; and casting, grinding, polishing, and oiling to obtain the artificial red coral bead string. The making method has the advantages of simplicity, simple equipment, short production period and easy mass production, and the artificial red coral bead string made in the invention has the characteristics of uniform color, brilliant shining and fine texture.

Description

technical field [0001] The invention belongs to the field of handicrafts, in particular to a preparation method of red coral beads. Background technique [0002] In 1988, the red coral was listed as one of the first-level national key protected wild animals. Red coral grows in the deep sea of ​​100 to 2000 meters away from humans. Natural red coral is formed by the accumulation of coral polyps. It grows extremely slowly (one inch takes 20 to 30 years, and one kilogram takes three hundred years) and cannot be regenerated. The growth conditions of red coral are extremely harsh, and they can only survive in clean seawater with stable ocean currents and moderate sunshine between south and north latitudes of 30 degrees. It requires deep water, slow water, no disturbance of wind and waves, no difference between cold and heat, and the annual temperature is almost constant at 10°C, so red corals are extremely rare. Red corals in the world are mainly distributed in the Mediterranea...

AI Technical Summary

Problems solved by technology

[0006] First, it is prone to fading and slag when used for a long time

[0007] Second, the mechanical mixing in the production process is uneven, and it is easy to agglomerate, resulting in uneven color of the final product

[0008] Third, the preparation process is complicated, the equipment requirements are high, the cost is high, and it is not suitable for large-scale production

Images