Waterproof light quartz plate and preparation method thereof
阅读说明：本技术 一种防水轻型石英板材及其制备方法 (Waterproof light quartz plate and preparation method thereof ) 是由 张乐 甄方正 邵岑 邱凡 罗泽 赵超 李延彬 陈浩 于 2020-11-23 设计创作，主要内容包括：一种防水轻型石英板材,所述防水轻型石英板材,按质量份数计,主要由以下组分构成：石英砂10~20份、丙烯酰胺共聚物2~3份、硅藻土5~20份、钛白粉5~20份、环氧树脂1~10份、聚氯乙烯树脂2~3份、纳米二氧化钛1~4份、纳米二氧化硅2~4份、颜料1~2份、固化剂1~2份、偶联剂1~3份。本发明所述的防水轻型石英板材及其制备方法,配方合理,制备方法简单,适合大规模生产,制得的石英板材具有优异的防水轻型的性能,应用前景广泛。(The waterproof light quartz plate mainly comprises the following components in parts by weight: 10-20 parts of quartz sand, 2-3 parts of acrylamide copolymer, 5-20 parts of diatomite, 5-20 parts of titanium dioxide, 1-10 parts of epoxy resin, 2-3 parts of polyvinyl chloride resin, 1-4 parts of nano titanium dioxide, 2-4 parts of nano silicon dioxide, 1-2 parts of pigment, 1-2 parts of curing agent and 1-3 parts of coupling agent. The waterproof light quartz plate and the preparation method thereof have the advantages of reasonable formula, simple preparation method and suitability for large-scale production, and the prepared quartz plate has excellent waterproof light performance and wide application prospect.)
1. The waterproof light quartz plate is characterized by mainly comprising the following components in parts by weight: 10-20 parts of quartz sand, 2-3 parts of acrylamide copolymer, 5-20 parts of diatomite, 5-20 parts of titanium dioxide, 1-10 parts of epoxy resin, 2-3 parts of polyvinyl chloride resin, 1-4 parts of nano titanium dioxide, 2-4 parts of nano silicon dioxide, 1-2 parts of pigment, 1-2 parts of curing agent and 1-3 parts of coupling agent.
2. The method for preparing the waterproof lightweight quartz plate material as claimed in claim 1, wherein the method for preparing is to realize physical waterproofing by changing the structure of the quartz surface, comprising the steps of:
(1) preparing raw materials, weighing quartz sand, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, acrylamide copolymer, nano titanium dioxide, nano silicon dioxide and pigment, remelting the quartz sand by oxyhydrogen flame at 1700-1800 ℃, and cooling after remelting;
(2) quartz sand, acrylamide copolymer, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, nano titanium dioxide and nano silicon dioxide are mixed and stirred uniformly to obtain a mixture, the mixing and stirring speed is 450-600rpm, and then the mixture is ground into powder A with the fineness of 50-180 meshes;
(3) sequentially adding the pigment, the curing agent and the coupling agent into the powder A prepared in the step (2), and uniformly mixing and stirring at the rotation speed of 500-650rpm to obtain a mixture B;
(4) uniformly spreading the mixture B prepared in the step (3) on a plate making mold, then sending the plate making mold into a vacuum chamber, and pressing for 250-350 seconds under the condition that the vacuum degree is 0.1-0.15MPa to obtain artificial quartz C;
(5) heating and curing the artificial quartz C prepared in the step (4) at the curing temperature of 92-95 ℃ for 45-50 minutes;
(6) and cooling, demolding, thickness fixing and polishing to obtain the waterproof light quartz plate.
3. The method for preparing the waterproof lightweight quartz plate as claimed in claim 2, wherein the particle size of the nano titanium dioxide is 125-150 nm.
4. The method for preparing the waterproof lightweight quartz plate as claimed in claim 3, wherein the particle size of the nano silica is 120-140 nm.
5. The method for preparing the waterproof lightweight quartz plate according to claim 4, wherein the curing agent is one or more of vinyl triamine DETA, diaminocyclohexane DACH, diethylenetriamine DETA, triethylenetetramine, diphenylmethyl peroxide or aliphatic polyamine.
6. The method for preparing the waterproof light quartz plate according to claim 5, wherein the coupling agent is any one or more of KH550, KH560, KH570, KH792, DL602 and DL 171.
Technical Field
The invention belongs to the technical field of quartz plate processing, and particularly relates to a waterproof light quartz plate and a preparation method thereof.
Background
The quartz plate is a novel polymeric material formed by mixing and processing natural quartz (particles and fine powder), resin and pigment, the quartz stone has multiple colors and varieties, good decorative effect, high hardness, good wear resistance, strong stain resistance, corrosion resistance, environmental protection, no radiation, high temperature resistance and no deformation, and compared with natural stone, the quartz stone has the unique advantages of no toxicity, no pollution, rich colors and the like, and becomes a new favorite in stone markets, and the quartz stone is widely applied to the ground, wall decoration and home industries of cabinets, bathrooms, offices and large markets.
However, the existing quartz plate is time-consuming and labor-consuming to move in practical application due to the large density of the quartz plate. Particularly, quartz plates with waterproof, flame-retardant and other properties are often subjected to surface modification by a chemical method, so that the purpose of environmental protection cannot be achieved, and the waterproof property caused by the chemical method is often gradually reduced along with the lapse of time.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the waterproof light quartz plate and the preparation method thereof, the formula is reasonable, the preparation method is simple, the preparation method is suitable for large-scale production, and the prepared quartz plate has excellent waterproof light performance.
The purpose of the invention is realized by the following technical scheme:
the waterproof light quartz plate mainly comprises the following components in parts by weight: 10-20 parts of quartz sand, 2-3 parts of acrylamide copolymer, 5-20 parts of diatomite, 5-20 parts of titanium dioxide, 1-10 parts of epoxy resin, 2-3 parts of polyvinyl chloride resin, 1-4 parts of nano titanium dioxide, 2-4 parts of nano silicon dioxide, 1-2 parts of pigment, 1-2 parts of curing agent and 1-3 parts of coupling agent.
The waterproof light quartz plate disclosed by the invention is reasonable in formula design, a series of micron-sized small holes are formed on the surface of quartz by adding the acrylamide copolymer, and the micro-porous structure with a periodic structure is formed because the surface tension of water exists and is difficult to adhere and corrode, so that the density of the quartz plate is reduced while the strength of the quartz plate is ensured. The waterproof light quartz plate has the water absorption rate of 0.001-0.003% and the density reduced to 1.8-2 g/cm 3.
The invention also relates to a preparation method of the waterproof light quartz plate, which comprises the following steps:
(1) preparing raw materials: weighing quartz sand, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, acrylamide copolymer, nano titanium dioxide, nano silicon dioxide and pigment according to the formula, re-melting the quartz sand at 1700-1800 ℃ through oxyhydrogen flame, and cooling after re-melting;
(2) quartz sand, acrylamide copolymer, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, nano titanium dioxide and nano silicon dioxide are mixed and stirred uniformly to obtain a mixture, the mixing and stirring speed is 450-600rpm, and then the mixture is ground into powder A with the fineness of 50-180 meshes;
(3) sequentially adding the pigment, the curing agent and the coupling agent into the powder A prepared in the step (2), and uniformly mixing and stirring at the rotation speed of 500-650rpm to obtain a mixture B;
(4) uniformly spreading the mixture B prepared in the step (3) on a plate making mold, then sending the plate making mold into a vacuum chamber, and pressing for 250-350 seconds under the condition that the vacuum degree is 0.1-0.15MPa to obtain artificial quartz C;
(5) heating and curing the artificial quartz C prepared in the step (4) at the curing temperature of 92-95 ℃ for 45-50 minutes;
(6) and cooling, demolding, thickness fixing and polishing to obtain the waterproof light quartz plate.
Preferably, the particle size of the nano titanium dioxide is 125-150nm, and the particle size of the nano silicon dioxide is 120-140 nm.
Preferably, the curing agent is one or more of vinyl triamine DETA, diaminocyclohexane DACH, diethylenetriamine DETA, triethylene tetramine, diphenylmethyl peroxide or fatty polyamine.
Preferably, the coupling agent is any one or a mixture of KH550, KH560, KH570, KH792, DL602 and DL 171.
Compared with the prior art, the invention has the following beneficial effects:
(1) the waterproof light quartz plate disclosed by the invention is reasonable in formula design, a series of micron-sized pores are formed on the surface of quartz by adding the acrylamide copolymer, the adhesion and corrosion are difficult to occur due to the surface tension of water, the formed microporous structure with a periodic structure reduces the density of the quartz plate while ensuring the strength of the quartz plate, the water absorption rate of the waterproof light quartz plate is 0.001-0.003%, the density is reduced to 1.8-2 g/cm3, the waterproof light quartz plate has excellent waterproof light performance, is suitable for being used as a novel waterproof light quartz plate, and has a wide application prospect;
(3) the preparation method of the waterproof light quartz plate provided by the invention is simple and has high flexibility, the high-purity quartz sand is selected as the raw material, the quartz sand is fully and heavily melted, impurities are reduced, the period order of the microporous structure is ensured, the density is reduced, the preparation method is very suitable for preparing the waterproof light quartz plate, the cost is low, the yield is high, the application of harmful chemical additives is reduced, the environmental protection of the production process is favorably ensured, the preparation method is very suitable for (semi-) industrial production, and the preparation method is suitable for large-scale production.
Drawings
FIG. 1 is a graph comparing water absorption rates of quartz plates prepared in example 1, example 2, example 3 and comparative example 1;
FIG. 2 is a graph showing a comparison of the densities of the quartz plates prepared in example 1, example 2, example 3 and comparative example 1;
FIG. 3 is an SEM image of the micro-pore structure of the quartz plate prepared in example 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with examples 1 to 3, comparative example 1 and specific experimental data, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
firstly, quartz sand is passed through oxyhydrogen flame at 1800oC, melting again and then cooling. Weighing fused quartz sand, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, acrylamide copolymer, nano titanium dioxide, nano silicon dioxide, pigment and the like; then quartz sand, acrylamide copolymer, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, nano titanium dioxide and nano silicon dioxide are uniformly mixed, the mixing and stirring speed is 450rpm, and then the mixture is ground into powder A with the fineness of 180 meshes; then adding the pigment, the curing agent, the coupling agent and the antifreezing agent into the prepared powder A in sequence, and uniformly mixing at a mixing and stirring speed of 650rpm to obtain a mixture B; uniformly spreading the prepared mixture B on a plate making mold, then conveying the plate making mold into a vacuum chamber, and pressing for 250 seconds under the condition that the vacuum degree is 0.15MPa to obtain artificial quartz C; then coating an anti-fouling agent on the surface of the prepared artificial quartz C, and then heating and curing, wherein the curing temperature is 95 ℃ and the curing time is 45 minutes; finally, cooling, demoulding, thickness fixing and polishing are carried out, thus obtaining the waterproof light quartz plate.
Preferably, the following raw materials are weighed in parts by weight: 20 parts of quartz sand, 2 parts of acrylamide copolymer, 20 parts of diatomite, 5 parts of titanium dioxide, 10 parts of epoxy resin, 2 parts of polyvinyl chloride resin, 4 parts of nano titanium dioxide, 2 parts of nano silicon dioxide, 2 parts of pigment, 1 part of curing agent and 3 parts of coupling agent.
Preferably, the particle size of the nano titanium dioxide is 125nm, and the particle size of the nano silicon dioxide is 140 nm.
Preferably, the curing agent is an aliphatic polyamine.
Preferably, the coupling agent is a mixture of DL602 and DL 171.
As shown in figure 3, the prepared waterproof light quartz plate has micron-sized micropores formed on the surface, good waterproof performance, water absorption of 0.001%, and density reduced to 1.9 g/cm3。
Example 2:
firstly, quartz sand is passed through oxyhydrogen flame at 1700 deg.CoC, melting again and then cooling. Weighing fused quartz sand, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, acrylamide copolymer, nano titanium dioxide, nano silicon dioxide, pigment and the like; then quartz sand, acrylamide copolymer, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, nano titanium dioxide and nano silicon dioxide are uniformly mixed, the mixing and stirring speed is 600rpm, and then the mixture is ground into powder A with the fineness of 50 meshes; then adding the pigment, the curing agent, the coupling agent and the antifreezing agent into the prepared powder A in sequence, and uniformly mixing at a mixing and stirring speed of 650rpm to obtain a mixture B; uniformly spreading the prepared mixture B on a plate making mold, then conveying the plate making mold into a vacuum chamber, and pressing for 350 seconds under the condition that the vacuum degree is 0.1MPa to obtain artificial quartz C; then coating an anti-fouling agent on the surface of the prepared artificial quartz C, and then heating and curing, wherein the curing temperature is 92 ℃, and the curing time is 50 minutes; finally, cooling, demoulding, thickness fixing and polishing are carried out, thus obtaining the waterproof light quartz plate.
Preferably, the following raw materials are weighed in parts by weight: 10 parts of quartz sand, 3 parts of acrylamide copolymer, 5 parts of diatomite, 20 parts of titanium dioxide, 1 part of epoxy resin, 3 parts of polyvinyl chloride resin, 1 part of nano titanium dioxide, 4 parts of nano silicon dioxide, 1 part of pigment, 2 parts of curing agent and 1 part of coupling agent.
Preferably, the particle size of the nano titanium dioxide is 150nm, and the particle size of the nano silicon dioxide is 120 nm.
Preferably, the curing agent is vinyl triamine DETA.
Preferably, the coupling agent is KH 550.
The prepared waterproof light quartz plate forms micron-sized micropores on the surface, has good waterproof performance, water absorption of 0.002 percent and densityThe degree is reduced to 2 g/cm3。
Example 3:
firstly, quartz sand is put through oxyhydrogen flame at 1760oC, melting again and then cooling. Weighing fused quartz sand, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, acrylamide copolymer, nano titanium dioxide, nano silicon dioxide, pigment and the like; then quartz sand, acrylamide copolymer, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, nano titanium dioxide and nano silicon dioxide are uniformly mixed, the mixing and stirring speed is 500rpm, and then the mixture is ground into powder A with the fineness of 100 meshes; then adding the pigment, the curing agent, the coupling agent and the antifreezing agent into the prepared powder A in sequence, and uniformly mixing at the mixing and stirring speed of 550rpm to obtain a mixture B; uniformly spreading the prepared mixture B on a plate making mold, then conveying the plate making mold into a vacuum chamber, and pressing for 300 seconds under the condition that the vacuum degree is 0.12MPa to obtain artificial quartz C; then coating an anti-fouling agent on the surface of the prepared artificial quartz C, and then heating and curing, wherein the curing temperature is 93 ℃, and the curing time is 48 minutes; finally, cooling, demoulding, thickness fixing and polishing are carried out, thus obtaining the waterproof light quartz plate.
Preferably, the following raw materials are weighed in parts by weight: 17 parts of quartz sand, 3 parts of acrylamide copolymer, 100 parts of diatomite, 15 parts of titanium dioxide, 6 parts of epoxy resin, 3 parts of polyvinyl chloride resin, 3 parts of nano titanium dioxide, 3 parts of nano silicon dioxide, 1 part of pigment, 1 part of curing agent and 2 parts of coupling agent.
Preferably, the particle size of the nano titanium dioxide is 130nm, and the particle size of the nano silicon dioxide is 125 nm.
Preferably, the curing agent is a mixture of diaminocyclohexane DACH and diethylenetriamine DETA.
Preferably, the coupling agent is a mixture of KH570 and KH 792.
The prepared waterproof light quartz plate forms micron-sized micropores on the surface, has good waterproof performance, water absorption of 0.003 percent and density reduced to 1.8g/cm3。
Comparative example 1:
firstly, quartz sand is led toOver oxyhydrogen flame 1760oC, melting again and then cooling. Weighing fused quartz sand, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, acrylamide copolymer, nano titanium dioxide, nano silicon dioxide, pigment and the like; then quartz sand, acrylamide copolymer, diatomite, titanium dioxide, epoxy resin, polyvinyl chloride resin, nano titanium dioxide and nano silicon dioxide are uniformly mixed, the mixing and stirring speed is 500rpm, and then the mixture is ground into powder A with the fineness of 100 meshes; then adding the pigment, the curing agent, the coupling agent and the antifreezing agent into the prepared powder A in sequence, and uniformly mixing at the mixing and stirring speed of 550rpm to obtain a mixture B; uniformly spreading the prepared mixture B on a plate making mold, then conveying the plate making mold into a vacuum chamber, and pressing for 300 seconds under the condition that the vacuum degree is 0.12MPa to obtain artificial quartz C; then coating an anti-fouling agent on the surface of the prepared artificial quartz C, and then heating and curing, wherein the curing temperature is 93 ℃, and the curing time is 48 minutes; finally, cooling, demoulding, thickness fixing and polishing are carried out, thus obtaining the waterproof light quartz plate.
Preferably, the following raw materials are weighed in parts by weight: 17 parts of quartz sand, 3 parts of acrylamide copolymer, 100 parts of diatomite, 15 parts of titanium dioxide, 6 parts of epoxy resin, 3 parts of polyvinyl chloride resin, 3 parts of nano titanium dioxide, 3 parts of nano silicon dioxide, 1 part of pigment, 1 part of curing agent and 2 parts of coupling agent.
Preferably, the particle size of the nano titanium dioxide is 130nm, and the particle size of the nano silicon dioxide is 125 nm.
Preferably, the curing agent is a mixture of diaminocyclohexane DACH and diethylenetriamine DETA.
Preferably, the coupling agent is a mixture of KH570 and KH 792.
Effect verification:
the waterproof lightweight quartz plate materials prepared in the above examples 1, 2, 3 and 1 were tested for their properties, and the test results are shown in fig. 1, 2 and 3.
GB/T35160.1-2017 is adopted to test the density and the water absorption. As can be seen from fig. 3, the waterproof lightweight quartz plate prepared in example 1 has micro-scale pores formed on the surface. As can be seen from FIGS. 1 and 2, in comparison with examples 1, 2 and 3, comparative example 1 in which the modification of the microporous structure was not carried out using acrylamide had a water absorption of 0.01% and a density of 2.6 g/cm3, which are superior to those of examples 1, 2 and 3.
In conclusion, by adding the acrylamide copolymer, a series of micron-sized pores can be formed on the surface of the quartz, and the micro-porous structure with periodic structure is difficult to adhere and corrode due to the surface tension of water, so that the density of the quartz plate is reduced while the strength of the quartz plate is ensured, and the waterproof performance is improved.
The invention has many applications, and the above description is only a preferred embodiment of the invention. It should be noted that the above examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications can be made without departing from the principles of the invention and these modifications are to be considered within the scope of the invention.