Silicon-implanted quartz plate and preparation method thereof

Abstract

The invention relates to a silicon-implanted quartz plate and a preparation method thereof. The silicon-implanted quartz plate comprises the following components in parts by mass: 700-730 parts of a quartz powder mixture, 100-130 parts of an adhesive, 50-100 parts of glass powder, 30-50 parts of toner and 70-80 parts of a silicon coupling agent. The invention relates to the technical field of quartz plates. According to the invention, the quartz mixture contains part of silicon powder, the particle size of the silicon powder is 300 nm to 5 [mu] m, the content of SiO2 is greater than 98%, and the whiteness is about 80. The quartz plate is reinforced by utilizing a grain size distribution theory, the silicon powder of the planting silicon body is cheap and easy to obtain, the production cost is low, and the prepared quartz plate has excellent high strength, high toughness and acid and alkali resistance and has a bright visual effect.

Description

Technical Field

[0001] The invention relates to the technical field of quartz plates, in particular to a planted silica quartz plate and a preparation method thereof. Background Art

[0002] Quartz stone slabs are made of large-sized slabs made of quartz crystals, resins, trace pigments and other materials under vacuum conditions through heterogeneous polymerization technology. Its main structure is up to 94% quartz crystals, making it hard and compact. It has the characteristics of wear resistance, pressure resistance, high temperature resistance, corrosion resistance, and anti-penetration that other decorative materials do not have. As one of the many materials, quartz slabs have always been popular among people, and they have high decorative beauty.

[0003] However, the existing quartz plates have a slightly reduced strength while pursuing aesthetics. If they are frequently replaced, the use cost is high and cannot meet people's actual needs. Therefore, it is necessary to provide a quartz plate with high strength and long service life. Quartz plates have various colors and can be widely used in public buildings (hotels, restaurants, banks, hospitals, exhibitions, laboratories, etc.) and home decoration (kitchen countertops, washbasins, kitchen and bathroom walls, dining tables, coffee tables, window sills, door covers, etc.). They are a new type of environmentally friendly and green building interior decoration material that is free of radioactive pollution and can be reused.

[0004] With the fierce competition in the quartz stone slab market, customers who use quartz stone slabs have higher and higher requirements for the quality of the slabs (especially the performance of the slabs), while the price of the slabs is getting lower and lower, forcing more and more quartz stone slab manufacturers to pay more and more attention to the reasonable ratio of aggregates and fillers. It can be seen that studying the reasonable ratio of aggregates and fillers is of great value to quartz stone slab manufacturers and even the entire quartz stone industry. The nano-scale quartz powder introduced in the present invention reasonably meets the aggregate particle size distribution. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a phytolith quartz plate and a preparation method thereof, so as to increase the toughness and strength of the artificial quartz plate and meet the requirements through particle size grading, wherein the nano / micro silica powder uses phytolith silicon powder as raw material, with a purity of 98%, a whiteness of 80, and a particle size of 300nm-5μm.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A planted silica quartz plate comprises the following components by weight: 700-730 parts of quartz powder mixture, 100-130 parts of adhesive, 50-100 parts of glass powder, 30-50 parts of color powder, and 70-80 parts of silicon coupling agent;

[0008] The quartz mixture is calculated according to the mass fraction of particle size distribution as follows: 300nm-5μm phytolith SiO2 powder (SiO2 content 98%, whiteness about 80), 100-200 mesh quartz powder (SiO2 content 98%, whiteness about 80), 40-70 mesh quartz powder (SiO2 content 98%, whiteness about 80), 16-26 mesh quartz powder (SiO2 content 98%, whiteness about 80);

[0009] The ratio is: phytolith SiO2 powder: 100-200 mesh quartz powder: 40-70 mesh quartz powder: 16-26 mesh quartz powder = 5-20: 10-35: 15-40: 20-60.

[0010] Preferably, the glass powder comprises the following components in a ratio of 1:1 by mass: 16-30 mesh grey-bottom mirror powder and 8-16 mesh white glass powder.

[0011] Preferably, the adhesive is one or a mixture of phenolic resin, polyurethane, epoxy resin, unsaturated polyester, dicyclopentenyl methacrylate, epoxy acrylic resin, bismaleimide.

[0012] Preferably, the silicon coupling agent is one of aminosilane coupling agents KH-540, KH-550, KH-570, KH-580, KH-590, KH-602, KH-792, KH-171, KH-172, KH-151, SI-69, SI-75, and KH-902.

[0013] A method for preparing a silica-planted SiO2 powder-reinforced quartz plate comprises the following steps:

[0014] S1 ratio, silicon coupling agent: quartz mixture and glass powder = 0.5-5:100, quartz mixture and glass powder are added to the silicon coupling agent in the order of particle size from fine to coarse, including color powder, that is, first add 300nm-5μm phytolith SiO2 powder, stir for 35-60 minutes, add color powder after uniformity, add 100-200 mesh quartz powder after uniformity, add 40-70 mesh quartz powder after uniformity, add 16-30 mesh gray bottom mirror powder after uniformity, add 16-26 mesh quartz powder after uniformity, add 8-6 mesh white glass powder after uniformity, and obtain quartz glass powder modified mixture;

[0015] S2 molding, the modified quartz glass powder obtained in S1 is mixed evenly with a binder to obtain a quartz plate mixture, and then the obtained quartz plate mixture is placed in a mold, pressurized, evacuated, heated to the melting temperature of the binder, cooled and solidified, and then post-processed to obtain a quartz plate.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. In the quartz mixture of the present invention, there is part of phytolith silicon powder, the particle size of the phytolith SiO2 powder is 300nm-5μm, the SiO2 content is greater than 98%, and the whiteness is about 80. The quartz plate is enhanced by using the particle size grading theory, the phytolith silicon powder is cheap and easy to obtain, the production cost is low, and the prepared quartz plate has excellent high strength, high toughness, acid and alkali resistance, and has a bright visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a SEM picture of the phytolith SiO2 powder according to an embodiment of the present invention.

[0019] Figure 2 This is a laser particle size analysis diagram of phytolith silicon powder according to an embodiment of the present invention.

[0020] Figure 3 It is the XRD analysis diagram of SiO2 after treatment according to the embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0022] Embodiment 1:

[0023] Reference Figure 1-3 The present invention discloses a planted silica quartz plate, comprising the following components by weight: 700-730 parts of quartz powder mixture, 100-130 parts of adhesive, 50-100 parts of glass powder, 30-50 parts of color powder, and 70-80 parts of silicon coupling agent;

[0024] The quartz mixture is calculated according to the particle size distribution mass fraction as follows: 100-200 mesh quartz powder (SiO2 content 98%, whiteness about 80), 40-70 mesh quartz powder (SiO2 content 98%, whiteness about 80), 16-26 mesh quartz powder (SiO2 content 98%, whiteness about 80);

[0025] The ratio is: phytolith SiO2 powder: 100-200 mesh quartz powder: 40-70 mesh quartz powder: 16-26 mesh quartz powder = 0:30:30:40.

[0026] The glass powder includes the following components in a 1:1 mass ratio: 16-30 mesh gray mirror powder and 8-16 mesh white glass powder.

[0027] The adhesive is one or a mixture of phenolic resin, polyurethane, epoxy resin, unsaturated polyester, dicyclopentenyl methacrylate, epoxy acrylic resin, bismaleimide.

[0028] The silicon coupling agent is one of aminosilane coupling agents KH-540, KH-550, KH-570, KH-580, KH-590, KH-602, KH-792, KH-171, KH-172, KH-151, SI-69, SI-75, and KH-902.

[0029] Toner is a colored powder substance that can be made into products of various colors.

[0030] Embodiment 2:

[0031] A planted silica quartz plate comprises the following components by weight: 700-730 parts of quartz powder mixture, 100-130 parts of adhesive, 50-100 parts of glass powder, 30-50 parts of color powder, and 70-80 parts of silicon coupling agent;

[0032] The quartz mixture is calculated according to the mass fraction of particle size distribution as follows: 300nm-5μm phytolith SiO2 powder (SiO2 content 98%, whiteness about 80), 100-200 mesh quartz powder (SiO2 content 98%, whiteness about 80), 40-70 mesh quartz powder (SiO2 content 98%, whiteness about 80), 16-26 mesh quartz powder (SiO2 content 98%, whiteness about 80);

[0033] The ratio is: phytolith SiO2 powder: 100-200 mesh quartz powder: 40-70 mesh quartz powder: 16-26 mesh quartz powder = 5:25:30:40.

[0034] The glass powder includes the following components in a 1:1 mass ratio: 16-30 mesh gray mirror powder and 8-16 mesh white glass powder.

[0035] The adhesive is one or a mixture of phenolic resin, polyurethane, epoxy resin, unsaturated polyester, dicyclopentenyl methacrylate, epoxy acrylic resin, bismaleimide.

[0036] The silicon coupling agent is one of aminosilane coupling agents KH-540, KH-550, KH-570, KH-580, KH-590, KH-602, KH-792, KH-171, KH-172, KH-151, SI-69, SI-75, and KH-902.

[0037] Toner is a colored powder substance that can be made into products of various colors.

[0038] Embodiment 3:

[0039] A planted silica quartz plate comprises the following components by weight: 700-730 parts of quartz powder mixture, 100-130 parts of adhesive, 50-100 parts of glass powder, 30-50 parts of color powder, and 70-80 parts of silicon coupling agent;

[0040] The quartz mixture is calculated according to the mass fraction of particle size distribution as follows: 300nm-5μm phytolith SiO2 powder (SiO2 content 98%, whiteness about 80), 100-200 mesh quartz powder (SiO2 content 98%, whiteness about 80), 40-70 mesh quartz powder (SiO2 content 98%, whiteness about 80), 16-26 mesh quartz powder (SiO2 content 98%, whiteness about 80);

[0041] The ratio is: phytolith SiO2 powder: 100-200 mesh quartz powder: 40-70 mesh quartz powder: 16-26 mesh quartz powder = 10:35:35:20.

[0042] The glass powder includes the following components in a 1:1 mass ratio: 16-30 mesh gray mirror powder and 8-16 mesh white glass powder.

[0043] The adhesive is one or a mixture of phenolic resin, polyurethane, epoxy resin, unsaturated polyester, dicyclopentenyl methacrylate, epoxy acrylic resin, bismaleimide.

[0044] The silicon coupling agent is one of aminosilane coupling agents KH-540, KH-550, KH-570, KH-580, KH-590, KH-602, KH-792, KH-171, KH-172, KH-151, SI-69, SI-75, and KH-902.

[0045] Toner is a colored powder substance that can be made into products of various colors.

[0046] Embodiment 4:

[0047] A planted silica quartz plate comprises the following components by weight: 700-730 parts of quartz powder mixture, 100-130 parts of adhesive, 50-100 parts of glass powder, 30-50 parts of color powder, and 70-80 parts of silicon coupling agent;

[0048] The quartz mixture is calculated according to the mass fraction of particle size distribution as follows: 300nm-5μm phytolith SiO2 powder (SiO2 content 98%, whiteness about 80), 100-200 mesh quartz powder (SiO2 content 98%, whiteness about 80), 40-70 mesh quartz powder (SiO2 content 98%, whiteness about 80), 16-26 mesh quartz powder (SiO2 content 98%, whiteness about 80);

[0049] The ratio is: phytolith SiO2 powder: 100-200 mesh quartz powder: 40-70 mesh quartz powder: 16-26 mesh quartz powder = 20:35:15:30.

[0050] The glass powder includes the following components in a 1:1 mass ratio: 16-30 mesh gray mirror powder and 8-16 mesh white glass powder.

[0051] The adhesive is one or a mixture of phenolic resin, polyurethane, epoxy resin, unsaturated polyester, dicyclopentenyl methacrylate, epoxy acrylic resin, bismaleimide.

[0052] The silicon coupling agent is one of aminosilane coupling agents KH-540, KH-550, KH-570, KH-580, KH-590, KH-602, KH-792, KH-171, KH-172, KH-151, SI-69, SI-75, and KH-902.

[0053] Toner is a colored powder substance that can be made into products of various colors.

[0054] In summary, in combination with Example 1 to Example 4, the prepared quartz plate was tested (impact toughness: GB / T29059-2012; super flexural strength: standard is SN / T0308-1993; impact strength: GB / T29059-2012; water absorption: GB / T9966.3-2001; Shore hardness: GB / T 9966.5-2001; acid resistance: GB / T 9966.6-2001; gloss: GB / T13891-2008).

[0055] The specific test results are as follows:

[0056] Test items Example 1 Example 2 Example 3 Example 4 Elastic modulus / GPa 39.6 40.2 40.3 42.6 Flexural strength / MPa 72 74 76 74 Drop ball impact strength (300mm) No cracks No cracks No cracks No cracks Water absorption 0.01 0.01 0.01 0.01 Shore hardness 6 6 7 7 Acid resistance (relative mass after 28 days) -1.0％ -1.0％ -1.2％ -1.0％ Glossiness 56 56 57 56

[0057] The quartz plates obtained in Examples 1-4 have bright visual effects, high gloss, high strength and strong acid resistance. The elastic modulus and flexural strength of Example 1 are significantly lower, indicating that the elastic modulus and flexural strength are significantly improved after adding 300nm-5μm phytolith SiO2 powder.

[0058] Embodiment 5:

[0059] A method for preparing a silica-planted SiO2 powder-reinforced quartz plate comprises the following steps:

[0060] S1 ratio, silicon coupling agent: quartz mixture and glass powder = 0.5-5:100, quartz mixture and glass powder are added to the silicon coupling agent in the order of particle size from fine to coarse, including color powder, that is, first add 300nm-5μm phytolith SiO2 powder, stir for 35-60 minutes, add color powder after uniformity, add 100-200 mesh quartz powder after uniformity, add 40-70 mesh quartz powder after uniformity, add 16-30 mesh gray bottom mirror powder after uniformity, add 16-26 mesh quartz powder after uniformity, add 8-6 mesh white glass powder after uniformity, and obtain quartz glass powder modified mixture;

[0061] S2 molding, the modified quartz glass powder obtained in S1 is mixed evenly with a binder to obtain a quartz plate mixture, and then the obtained quartz plate mixture is placed in a mold, pressurized, evacuated, heated to the melting temperature of the binder, cooled and solidified, and then post-processed to obtain a quartz plate.

[0062] The embodiments of the specific implementation methods are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A planted silica quartz plate, characterized in that: The invention comprises the following components by weight: 700-730 parts of quartz powder mixture, 100-130 parts of adhesive, 50-100 parts of glass powder, 30-50 parts of color powder, and 70-80 parts of silicon coupling agent; The quartz mixture is calculated according to the mass fraction of particle size distribution as follows: 300nm-5μm phytolith SiO2 powder (SiO2 content 98%, whiteness about 80), 100-200 mesh quartz powder (SiO2 content 98%, whiteness about 80), 40-70 mesh quartz powder (SiO2 content 98%, whiteness about 80), 16-26 mesh quartz powder (SiO2 content 98%, whiteness about 80); The ratio is: phytolith SiO2 powder: 100-200 mesh quartz powder: 40-70 mesh quartz powder: 16-26 mesh quartz powder = 5-20: 10-35: 15-40: 20-60.

2. The planted silica quartz plate according to claim 1, characterized in that: The glass powder includes the following components in a 1:1 mass ratio: 16-30 mesh gray mirror powder and 8-16 mesh white glass powder.

3. The planted silica quartz plate according to claim 1, characterized in that: The adhesive is one or a mixture of phenolic resin, polyurethane, epoxy resin, unsaturated polyester, dicyclopentenyl methacrylate, epoxy acrylic resin, bismaleimide.

4. The planted silica quartz plate according to claim 1, characterized in that: The silicon coupling agent is one of aminosilane coupling agents KH-540, KH-550, KH-570, KH-580, KH-590, KH-602, KH-792, KH-171, KH-172, KH-151, SI-69, SI-75, and KH-902.

5. A method for preparing a quartz plate reinforced with planted silica SiO2 powder, according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1 ratio, silicon coupling agent: quartz mixture and glass powder = 0.5-5:100, quartz mixture and glass powder are added to the silicon coupling agent in the order of particle size from fine to coarse, including color powder, that is, first add 300nm-5μm phytolith SiO2 powder, stir for 35-60 minutes, add color powder after uniformity, add 100-200 mesh quartz powder after uniformity, add 40-70 mesh quartz powder after uniformity, add 16-30 mesh gray bottom mirror powder after uniformity, add 16-26 mesh quartz powder after uniformity, add 8-6 mesh white glass powder after uniformity, and obtain quartz glass powder modified mixture; S2 molding, the modified quartz glass powder obtained in S1 is mixed evenly with a binder to obtain a quartz plate mixture, and then the obtained quartz plate mixture is placed in a mold, pressurized, evacuated, heated to the melting temperature of the binder, cooled and solidified, and then post-processed to obtain a quartz plate.

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