WO2019104699A1

WO2019104699A1 - Production method for sterilized quartzite composite liner

Info

Publication number: WO2019104699A1
Application number: PCT/CN2017/114157
Authority: WO
Inventors: 朱冠军
Original assignee: 朱冠军
Priority date: 2017-12-01
Filing date: 2017-12-01
Publication date: 2019-06-06

Abstract

A production method for a sterilized quartzite composite liner. The sterilized quartzite composite liner is prepared by the following components in parts by weight: 60-70 parts of quartzite sand, 20-30 parts of melted quartz powder, 0.01-0.1 part of nano-silver, 0.05-0.2 part of nano-titanium dioxide, 3-10 parts of unsaturated polyester resin, 0.002-1.2 parts of curing agent, 0.015-2.6 parts of silane coupling agent, and 4-12 parts of filler. The quartzite composite liner overcomes the common defects in the existing quartzite plate that is easy to age and prone to mildew and breeds bacterium.

Description

Method for producing sterilizing quartz stone composite liner

Technical field

The invention relates to the technical field of building material processing, in particular to a method for producing a sterilizing quartz stone composite lining.

Background technique

As a commonly used building material, quartz stone plates are widely used in the construction of exterior walls and floors. The existing process for preparing artificial stone plates is to mix and mix the raw materials with quartz sand powder and then perform upper molding. The artificial quartz stone is widely used in kitchen countertops, laboratory countertops, window sills, bar counters, elevator doors, floors, walls, etc. . Artificial quartz stone plates are basically applicable in places where the construction requires relatively high materials. At present, the artificial quartz stone plate on the market has relatively low hardness, poor wear resistance, and problems such as easy scratching and easy to break; and there are also phenomena of aging and poor antibacterial property; at the same time, the traditional quartz stone plate has poor weather resistance. If it is left in a humid environment for a long time, it will cause mildew and growth of bacteria, which will affect its application in specific environments.

Summary of the invention

The object of the present invention is to provide a method for producing a sterilizing type quartz stone composite lining plate, which solves the defects of the existing quartz stone plate which are easy to be aged, easy to mold, and breed bacteria.

The technical solution adopted by the present invention to solve the above technical problem is: a production method of a sterilizing quartz stone composite lining board, and the specific steps thereof are as follows:

Step 1: 60 to 70 parts of the following parts by weight of quartz sand, 20 to 30 parts of fused silica powder are placed in a ball mill for ball milling, and a mixture a having a particle size of 100 to 200 μm is obtained by screening. stand-by;

Step 2: adding 0.05 to 0.2 parts by weight of the nanometer titanium dioxide, 3 to 10 parts of the unsaturated resin, 0.002 to 1.2 parts of the curing agent, 0.015 to 2.6 parts of the silane coupling agent, and 4 to 12 parts of the filler are added to the first step. Mixing in the mixture a to obtain the mixture b, which is ready for use;

Step 3, the mixture b obtained in the second step is equally divided into two parts, respectively, the mixture c and the mixture d, 0.01 to 0.1 parts of the nano silver is added to the mixture c and mixed to obtain a mixture. e, stand-by;

Step 4: Half of the mixture e obtained in the third step is laid in the first mold, and the bottom of the first mold is uniformly provided with a plurality of cylindrical protrusions, which are sent into a vacuum chamber, vacuumed, and molded by vibration. a first semi-finished product having a plurality of through holes I;

Step 5, the other half of the mixture e in the third step is laid in the first mold, sent to the vacuum chamber, vacuumed, and vibration molded to obtain a second semi-finished product having a plurality of through holes II;

Step 6. Lay a layer of kraft paper or PVC film on the bottom surface of the second mold which is flat at the bottom, and place the first semi-finished product obtained in step 4 in the second mold, and fill in each through hole I of the first semi-finished product. Into the anti-aging accessories, sent to the vacuum chamber, vacuuming, vibration molding, the third semi-finished product;

Step 7. Laying a layer of kraft paper or PVC film on the bottom surface of the second mold, and placing the second semi-finished product obtained in step 5 in the second mold, and filling in each through hole II of the second semi-finished product. The aging auxiliary material is sent to the vacuum chamber, vacuumed and vibrated to obtain the fourth semi-finished product;

Step 8. Laying a layer of kraft paper or PVC film on the bottom surface of the second mold, placing the third semi-finished product obtained in step 6 in the second mold, and laying the mixture d in the third step on the third semi-finished product. On the surface, the fourth semi-finished product obtained in the seventh step is then placed above the mixing material d, sent to the vacuum chamber, vacuumed, and vibrated to obtain the fifth semi-finished product;

Step IX, the fifth semi-finished product obtained in step 8 is sent to a curing oven for curing, the curing temperature is 82-88 ° C, the curing time is 2 to 3 h, and the sixth semi-finished product is fixed and polished after demolding cooling;

Step 8. The sixth semi-finished product obtained in the seventh step is sent to the vacuum magnetron sputtering coating machine as a substrate, and is filled with argon gas, and the pure silver or silver alloy material is used as the sputtering target material, and the degree of vacuum is 2×10. ^-4 Pa to 6 × 10 ^-4 Pa, sputtering pressure is 0.1 Pa to 5 Pa, sputtering power is 35 W to 45 W, sputtering time is 5 min to 20 min, and nano silver layer is sputter-plated on the surface of the sixth semi-finished product, plating A layer of nano-silver from 2.5 to 4.5 microns thick.

Further, the unsaturated resin is at least one of a p-benzoic unsaturated resin, an acrylic resin, and a vinyl resin.

Further, the curing agent is an epoxy resin.

Further, the silane coupling agent is at least one of a silane coupling agent KH550, a silane coupling agent KH560, or a silane coupling agent KH570.

Further, the filler is any one or more of kaolin, nano silica, calcium carbonate powder or glass powder.

Further, the quartz stone has a particle size of 10 to 40 μm, the fused silica powder has a particle size of 20 to 80 μm, the nano silver has a particle size of 30 to 60 nm, and the nano titanium dioxide has a particle size of 30 to 60 nm.

Further, the nano silver is prepared by placing a silver powder having a particle size of 30-50 μm into a ball mill and performing mechanical ball milling at a low temperature of -189 to 197 ° C for 30 min to 50 min.

Further, the pressure during the vibration molding is 2 to 3 MPa, the degree of vacuum is -0.2 to -0.4 MPa, the molding time is 150 to 200 seconds, and the vibration frequency is 30 to 40 Hz.

Further, the distance between the fourth semi-finished product and the sputtering target material is 50 mm to 150 mm.

Further, the auxiliary material is composed of the following components by weight: 50 to 60 parts of quartz stone having a particle size of 40 to 60 μm, 10 to 20 parts of glass powder having a particle size of 50 to 70 μm, 10 to 15 parts of a vinyl resin, and phenol. 0.001 to 0.6 parts of a sulfonic acid, 0.01 to 1.9 parts of a silane coupling agent, and 0.01 to 0.05 parts of nano-titanium having a particle size of 50 to 60 nm are uniformly mixed.

The beneficial effects of the present invention are mainly as follows: the present invention adopts quartz sand with a particle size of 10-40 μm and fused silica powder with a particle size of 20-80 μm as the main raw material of the quartz stone liner, by adding quartz sand and melting of different particle sizes. Quartz powder, fused silica powder with small particle size can be embedded in the outer wall or inside of the quartz stone with large particle size, and the molten quartz powder can be embedded in the outer wall or surface of the quartz stone sand, so that the mixing of the mortar raw material is more uniform;

Nano-silver has strong inhibition and killing effect on dozens of pathogenic microorganisms such as Escherichia coli, Neisseria gonorrhoeae and Chlamydia trachomatis, and does not produce drug resistance; Nano-TiO2 has anti-wire, anti-bacterial, self-cleaning and anti-aging properties. ;

In the present invention, on the one hand, by using the first mold, a first semi-finished product having a plurality of through holes is prepared, and then an auxiliary material having anti-aging properties is added to the through holes through the upper surface of the quartz stone composite lining plate. Added anti-aging effect to the layer and the lower surface layer The auxiliary materials used further improve the anti-aging performance of the quartz stone composite liner;

On the other hand, the nano titanium dioxide is added to the quartz stone composite liner material for mixing, so that the whole quartz stone composite liner substrate has certain anti-aging and bactericidal properties; by performing multiple vibration molding in the mold, on the one hand The density of the lining plate can be increased; on the other hand, the nano silver is added to the upper and lower plates of the quartz stone composite lining plate, which can well avoid the corrosion of the upper and lower surfaces due to contact with bacteria;

At the same time, a layer of 2.5-4.5 micron thick nano-silver layer is coated on the formed liner by vacuum magnetron sputtering coating machine to further improve the antibacterial property of the liner; the prepared quartz stone liner is fungus, bacteria and mold. It has good killing and inhibiting ability, and has no toxic long-acting effect, no odor, anti-aging and anti-mildew, antibacterial and the like, greatly improving the application field of the product.

Detailed ways

The content of the present invention is described in detail with reference to the embodiments. The present embodiment provides a detailed implementation and a specific operation procedure on the premise of the technical solution of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.

Embodiment 1

A method for producing a sterilizing quartz stone composite liner, the specific steps of which are as follows:

Step 1: 60 parts of the following parts by weight of quartz sand and 20 parts of fused silica powder are placed in a ball mill for ball milling, and a mixture a having a particle size of 100-200 μm is selected for use;

Step 2: adding 0.05 parts of nanometer titanium dioxide, 3 parts of benzoic unsaturated resin, 0.002 parts of curing agent, 0.015 parts of silane coupling agent KH550, and 4 parts of kaolin to the mixture a obtained in the first step. Mix well to get the mixture b, ready to use;

Step 3, the mixture b obtained in the second step is equally divided into two parts, respectively, the mixture c and the mixture d, 0.01 parts of the nano silver is added to the mixture c and mixed to obtain the mixture e, stand-by;

Step IX. The fifth semi-finished product obtained in step 8 is sent to a curing oven for solidification, solidification The curing temperature is 82-88 ° C, the curing time is 2 ~ 3 h, and after the mold is cooled, the sixth semi-finished product is obtained by thickening and polishing;

Further, the curing agent is an epoxy resin.

Embodiment 2

Step 1: 70 parts of the following parts by weight of quartz sand and 30 parts of fused silica powder are placed in a ball mill for ball milling, and a mixture a having a particle size of 200 μm is selected for use;

Step 2, the following parts by weight of 0.2 parts of nano titanium dioxide, 5 parts of p-benzoic unsaturated resin and acrylic resin, 1.2 parts of curing agent, 1.3 parts of silane coupling agent KH550 and silane coupling agent KH560, kaolin and nanometer 6 parts of each silica is added to the mixture a obtained in the first step and mixed to obtain a mixture b, which is ready for use;

Step 3, the mixture b obtained in the second step is equally divided into two parts, respectively, the mixture c and the mixture d, 0.1 parts of the nano silver is added to the mixture c and mixed to obtain the mixture e, stand-by;

Step 7. Laying a layer of kraft paper or PVC film on the bottom surface of the second mold, and stepping The second semi-finished product obtained in the fifth step is placed in the second mold, and the anti-aging auxiliary material is filled in each through hole II of the second semi-finished product, sent to the vacuum chamber, vacuumed, and vibrated to obtain the fourth semi-finished product. ;

Further, the curing agent is an epoxy resin.

Embodiment 3

Step 1: 65 parts of the following parts by weight of quartz sand and 25 parts of fused silica powder are placed in a ball mill for ball milling, and a mixture a having a particle size of 100-200 μm is selected for use;

Step 2: 0.1 parts by weight of the following nanometer titanium dioxide, 3 parts each of the acrylic resin and the vinyl resin, 0.01 part of the curing agent, 0.5 parts of the silane coupling agent KH550 and the silane coupling agent KH570, calcium carbonate powder and glass powder 3 parts each added to the mixture a obtained in the first step, and mixed to obtain a mixture b, which is ready for use;

Step 3, the mixture b obtained in the second step is equally divided into two parts, respectively, the mixture c and the mixture d, and 0.05 parts of the nano silver is added to the mixture c and mixed to obtain the mixture e. stand-by;

Further, the curing agent is an epoxy resin.

Embodiment 4

Step 1: The following parts by weight of 62 parts of quartz sand and 22 parts of fused silica powder are placed in a ball mill for ball milling, and a mixture a having a particle size of 100-200 μm is selected for use;

Step 2, the following parts by weight of 0.12 parts of nano titanium dioxide, 5 parts of vinyl resin, 0.02 parts of curing agent, 1.5 parts of silane coupling agent KH570, nano silica and glass 3 parts of each of the glass powders are added to the mixture a obtained in the first step to be mixed to obtain a mixture b, which is ready for use;

Step 3, the mixture b obtained in the second step is equally divided into two parts, respectively, the mixture c and the mixture d, and 0.04 parts of the nano silver is added to the mixture c and mixed to obtain a mixture e. stand-by;

Step 8. Laying a layer of kraft paper or PVC film on the bottom surface of the second mold, placing the third semi-finished product obtained in step 6 in the second mold, and laying the mixture d in the third step on the third semi-finished product. On the surface, then put the fourth semi-finished product obtained in step seven Above the mixing material d, it is sent to the vacuum chamber, vacuumed, and vibrated to obtain the fifth semi-finished product;

Further, the curing agent is an epoxy resin.

Further, the auxiliary material is composed of the following components by weight: 50 to 60 parts of quartz stone having a particle size of 40 to 60 μm, 10 to 20 parts of glass powder having a particle size of 50 to 70 μm, and ethylene; 10 to 15 parts of the base resin, 0.001 to 0.6 parts of phenolsulfonic acid, 0.01 to 1.9 parts of a silane coupling agent, and 0.01 to 0.05 parts of nano-titanium having a particle size of 50 to 60 nm are uniformly mixed.

The nano silver ion on the surface of the quartz stone composite liner of the invention can be combined with the sulfhydryl group on the protease in the bacteria, thereby deactivating the protein, and having good bactericidal effect on Escherichia coli, Neisseria gonorrhoeae and Chlamydia trachomatis, in the present invention The bacteriostasis rate of the quartz stone composite liner is 82 to 95%, and the service life of the quartz stone composite liner of the present invention is increased from the usual 2 to 4 years to 7 to 8 years.

It should also be noted that, in this context, relational terms such as I, II, III, etc. are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of such entities or operations. Any such actual relationship or order. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other.

Claims

A method for producing a sterilizing quartz stone composite liner, characterized in that: the specific steps are as follows:

Step one: 60-70 parts of quartz stone sand and 20-30 parts of fused silica powder are placed in a ball mill for ball milling, and a mixture a having a particle size of 100-200 μm is selected for use;

Step 2: adding 0.05 to 0.2 parts of nano titanium dioxide, 3 to 10 parts of unsaturated resin, 0.002 to 1.2 parts of curing agent, 0.015 to 2.6 parts of silane coupling agent, and 4 to 12 parts of filler are added to the mixture a obtained in the first step. Mixing to obtain the mixture b, which is ready for use;

Step 3, the mixture b obtained in the second step is equally divided into two parts, respectively, the mixture c and the mixture d, 0.01 to 0.1 parts of the nano silver is added to the mixture c and mixed to obtain a mixture. e, stand-by;

Step 4: Half of the mixture e obtained in the third step is laid in the first mold, and the bottom of the first mold is uniformly provided with a plurality of cylindrical protrusions, which are sent into a vacuum chamber, vacuumed, and molded by vibration. a first semi-finished product having a plurality of through holes I;

Step 5, the other half of the mixture e in the third step is laid in the first mold, sent to the vacuum chamber, vacuumed, and vibration molded to obtain a second semi-finished product having a plurality of through holes II;

Step 6. Lay a layer of kraft paper or PVC film on the bottom surface of the second mold which is flat at the bottom, and place the first semi-finished product obtained in step 4 in the second mold, and fill in each through hole I of the first semi-finished product. Into the anti-aging accessories, sent to the vacuum chamber, vacuuming, vibration molding, the third semi-finished product;

Step 7. Laying a layer of kraft paper or PVC film on the bottom surface of the second mold, and placing the second semi-finished product obtained in step 5 in the second mold, in each of the second semi-finished products The through hole II is filled with anti-aging auxiliary material, sent to the vacuum chamber, vacuumed, and vibrated to obtain the fourth semi-finished product;

Step 8. Laying a layer of kraft paper or PVC film on the bottom surface of the second mold, placing the third semi-finished product obtained in step 6 in the second mold, and laying the mixture d in the third step on the third semi-finished product. On the surface, the fourth semi-finished product obtained in the seventh step is then placed above the mixing material d, sent to the vacuum chamber, vacuumed, and vibrated to obtain the fifth semi-finished product;

Step IX, the fifth semi-finished product obtained in step 8 is sent to a curing oven for curing, the curing temperature is 82-88 ° C, the curing time is 2 to 3 h, and the sixth semi-finished product is fixed and polished after demolding cooling;

Step 8. The sixth semi-finished product obtained in the seventh step is sent to the vacuum magnetron sputtering coating machine as a substrate, and is filled with argon gas, and the pure silver or silver alloy material is used as the sputtering target material, and the degree of vacuum is 2×10. -4 Pa to 6 × 10 -4 Pa, sputtering pressure is 0.1 Pa to 5 Pa, sputtering power is 35 W to 45 W, sputtering time is 5 min to 20 min, and nano silver layer is sputter-plated on the surface of the sixth semi-finished product, plating A layer of nano-silver from 2.5 to 4.5 microns thick.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the unsaturated resin is at least one of a para-type unsaturated resin, an acrylic resin, and a vinyl resin. .
A method of producing a sterilizing quartz stone composite liner according to claim 1, wherein the curing agent is an epoxy resin.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the silane coupling agent is a silane coupling agent KH550, a silane coupling agent KH560 or a silane coupling agent KH570. At least one.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the filler is any one or more of kaolin, nano silica, calcium carbonate powder or glass powder.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the quartz stone has a particle size of 10 to 40 μm, the fused silica powder has a particle size of 20 to 80 μm, and the nano silver has a particle size. The particle size of the nano titanium dioxide is 30 to 60 nm, which is 30 to 60 nm.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the method for preparing the nano silver is: placing silver powder having a particle size of 30-50 μm into a ball mill at -189 to 197 Mechanical milling at a low temperature of °C for 30 min to 50 min.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the pressure during the vibration molding is 2 to 3 MPa, the degree of vacuum is -0.2 to -0.4 MPa, and the molding time is 150. ~200 seconds, the vibration frequency is 30 ~ 40HZ.
A method of producing a sterilizing quartz stone composite liner according to claim 1, wherein the distance between the sixth semi-finished product and the sputtering target material is 50 mm to 150 mm.
The method for producing a sterilizing quartz stone composite liner according to claim 1, wherein the auxiliary material comprises 50 to 60 parts of quartz stone having a particle size of 40 to 60 μm and glass powder 10 having a particle size of 50 to 70 μm. ～20 parts, 10-15 parts of vinyl resin, 0.001-0.6 parts of phenolsulfonic acid, 0.01-1.9 parts of silane coupling agent, and 0.01-0.05 parts of nano-titanium dioxide having a particle size of 50-60 nm are uniformly mixed.