Jade-like glass-ceramic and preparation method thereof

Abstract

The invention relates to a jade-like glass-ceramic and a preparation method thereof. The glass-ceramics includes the following components in weight percentage: 79-88% of main components, 1-5% of stabilizers, 0.5-5% of clarifying agents, 5-15% of crystal nucleating agents and 0-5% The coloring agent; Wherein, the main component is SiO 2 , MgO and Al 2 o 3 ; The crystal nucleating agent is selected from TiO 2 , ZrO 2 and P 2 o 5 At least one of; the clarifying agent is selected from CaF 2 and NaSbO 3 at least one of the The glass-ceramics has a jade-like appearance, good thermal and chemical stability, impact resistance, good toughness and excellent processability.

Description

technical field [0001] The invention relates to glass-ceramics, in particular to a jade-like glass-ceramic and a preparation method thereof. Background technique [0002] With the continuous mining of natural jade in nature, its resources are gradually decreasing. Natural jade is exquisite in appearance, soft and delicate, and is widely used in various decorations and handicrafts. However, some natural jade products are not resistant to temperature differences, are prone to cracks, and have poor drop resistance. Some jade also contains radioactive substances that are harmful to the human body. In addition, the processing costs of plates made of natural jade are expensive. Therefore, artificial jade has gradually entered people's sight and become a research hotspot. [0003] At present, the preparation methods of artificial jade mainly include the following types: [0004] (1) Unsaturated resin plus fillers and auxiliary materials is synthesized by vacuum curing. This kind...

AI Technical Summary

Problems solved by technology

[0004] (1) Unsaturated resin plus fillers and auxiliary materials is synthesized by vacuum curing. This kind of synthetic jade is simple in process, rich in color, high in transparency, smooth and tough, but this kind of jade has corrosion resistance, high temperature resistance and The anti-ultraviolet ability is poor, and the decorative effect is not ideal;

[0005] (2) Air-hardening magnesium gelling material. This material is mainly made of magnesium halide and magnesium oxide as raw materials, cellulose ether and citric acid as additives, and mixed with air-hardening molding. The material is as hard as jade. The production process Simple, but it is easy to absorb moisture and return to brine during long-term storage, whitening and discoloration do not have a good appearance and decorative effect;

[0006] (3) Opaque glass, this kind of material is mainly made of ordinary glass, adding a certain amount of colorant and emulsifier, and then the finished product is obtained through melting, molding, emulsification, annealing and cutting, with bright color, high gloss and strong rigidity However, because there is no nucleation and crystallization process in opaque glass, there is no crystal structure inside, so the internal structure is not firm, high brittleness, easy to break, and poor drop resistance;

[0007] (4) The composite material formed by glass and adhesive. This material is made of ordinary glass and cured by adding adhesive, curing agent and other fillers. The process is simple and the price is low. In the environment, it is not resistant to aging, and it is prone to yellowing or even chapping.

Images