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Artificial stone whitened by composite pigment and preparation method of artificial stone

A composite pigment and artificial stone technology, applied in the field of artificial stone production, can solve the problems of high addition of titanium dioxide, easy discoloration of white artificial stone, etc., and achieve the effects of easy fading or discoloration, not easy to fade or discoloration, and reducing production costs.

Inactive Publication Date: 2021-01-15
中旗(湖北)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems raised by the background technology, the purpose of the present invention is to propose a kind of artificial stone whitened by composite pigments, which has good weather resistance, is not easy to fade or change color, and the introduction of titanium dioxide does not exceed the EU 1%. There are problems that the white artificial stone is easy to change color and the amount of titanium dioxide added in the raw material is high

Method used

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  • Artificial stone whitened by composite pigment and preparation method of artificial stone
  • Artificial stone whitened by composite pigment and preparation method of artificial stone
  • Artificial stone whitened by composite pigment and preparation method of artificial stone

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preparation example Construction

[0051] A method for preparing artificial stones whitened by composite pigments, for preparing the artificial stones whitened by composite pigments, comprising the following steps:

[0052] (1) Preparation of composite pigment: pre-disperse titanium dioxide in water to obtain titanium dioxide suspension, mix the pre-ground wollastonite powder with the titanium dioxide suspension evenly, and then place it in an ultrafine stirring mill The composite slurry is prepared by medium grinding, and the composite slurry is dehydrated, dried and dispersed to obtain a composite pigment;

[0053] (2) Mixing of raw materials: mix resin, aggregate, filler, curing agent and coupling agent and stir evenly to obtain a mixture;

[0054] (3) Fabric: feed the mixture into the fabric frame;

[0055] (4) Pressing: vacuumize and press the mixed material in the cloth frame to obtain the green body;

[0056] (5) Curing: demoulding after curing the green body;

[0057] (6) Post-treatment: post-process...

Embodiment 1～5

[0080] A kind of artificial stone that adopts composite pigment to whiten, prepare raw material according to the raw material formula of table 1 standby, and prepare according to the following steps:

[0081] (1) Preparation of composite pigment: pre-disperse titanium dioxide in water to obtain titanium dioxide suspension, mix the pre-ground wollastonite powder and titanium dioxide suspension evenly, and then grind in an ultrafine stirring mill The composite slurry is obtained, and the composite slurry is dehydrated, dried and dispersed to obtain a composite pigment;

[0082] (2) Mixing of raw materials: first add coupling agent to the resin, then add composite pigment and / or colored pigment to mix and disperse with colloid mill to obtain suspension, then add the suspension to pre-mixed uniform aggregate, In the filler and the curing agent, mix and stir evenly to obtain the mixture;

[0083] (3) Fabric: feed the mixture into the fabric frame;

[0084] (4) Pressing: vacuumize...

Embodiment 6

[0095] A kind of artificial stone that adopts composite pigment to whiten, prepare raw material according to the raw material formula of embodiment 5 in table 1 standby, and prepare according to the following steps:

[0096] (1) Preparation of composite pigment: pre-disperse titanium dioxide in water to obtain titanium dioxide suspension, mix the pre-ground wollastonite powder and titanium dioxide suspension evenly, and then grind in an ultrafine stirring mill The composite slurry is obtained, and the composite slurry is dehydrated, dried and dispersed to obtain a composite pigment;

[0097] (2) Mixing of raw materials: first mix the aggregate and the composite pigment evenly according to the ratio of 20:1, then add them to the pre-mixed filler, coupling agent, curing agent and the remaining aggregate, mix and stir evenly to obtain Mixture;

[0098] (3) Fabric: feed the mixture into the fabric frame;

[0099] (4) Pressing: vacuumize and press the mixed material in the cloth ...

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Abstract

The invention discloses an artificial stone whitened by a composite pigment and a preparation method of the artificial stone. The artificial stone comprises the following raw materials in parts by mass: 8-16 parts of resin, 55-65 parts of aggregate, 25-37 parts of filler and 0.1-1 part of composite pigment; the aggregate comprises quartz aggregate and / or glass particles; the filler comprises quartz powder and / or ultrafine quartz powder; the composite pigment comprises wollastonite powder and titanium dioxide, and the mass ratio of the wollastonite powder to the titanium dioxide is (5-6): (4-5). The artificial stone whitened by the composite pigment is good in weather resistance and not easy to fade or discolor, and the introduction amount of the titanium dioxide does not exceed 1% prescribed by European Union. According to the preparation method of the artificial stone whitened by the composite pigment, the preparation process is simple; the prepared artificial stone is good in weatherresistance and not easy to fade or discolor; the artificial stone with different textures and plate surface effects can be prepared; the decoration effect is rich, and the applicability of the artificial stone whitened by the composite pigment is wide.

Description

technical field [0001] The invention relates to the technical field of artificial stone production, in particular to an artificial stone whitened by a composite pigment and a preparation method thereof. Background technique [0002] Artificial stone is made of quartz sand or a certain amount of glass particles as aggregate, quartz powder as filler, unsaturated polyester resin as binder, and is processed by vacuuming, vibration compaction, curing and other steps. Stone, with its hard texture and dense structure, has the characteristics of wear resistance, pressure resistance, high temperature resistance, corrosion resistance and impermeability that other decorative materials cannot match. Artificial stone is widely used in public buildings such as hotels, restaurants and banks, as well as in home decoration fields such as kitchen countertops, washstands and kitchen and bathroom walls. [0003] The raw materials of artificial stone-quartz aggregate, glass particles, quartz po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/04C04B111/20C04B111/82
CPCC04B26/045C04B2111/00025C04B2111/20C04B2111/82C04B14/06C04B14/043C04B14/305C04B24/008C04B24/42C04B14/22C04B14/308
Inventor 李勇冯伟坚戴新邓永权冯荣杰
Owner 中旗(湖北)新材料有限公司
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