阅读说明：本技术 一种仿古木纹石英石板材及其制备方法 (Antique wood grain quartz stone plate and preparation method thereof ) 是由 苏连华 朱维俊 余军 李玉明 苏运舫 韦建成 于 2020-03-24 设计创作，主要内容包括：本发明提供了一种仿古木纹石英石板材及其制备方法,以不同粒径的石英砂、石英粉与树脂、固化剂、偶联剂、不同颜色的色粉为原料制成；效果贴近大自然,纹理细腻,美观大方,力学性能好；本发明的人造石英石板材不易变形、开裂、褪色、失去光泽等,具有生产成本低,装饰效果好。具有颜色多和硬度高的特点,产品美观、高雅、装饰性强；粘接处有乙烯基酯树脂等,可以避免花纹粘接处受到油垢的接触而侵蚀,也可以提高粘接处的稳定性,避免出现裂缝,延长整体石英石花纹的寿命。(The invention provides an antique wood grain quartz stone plate and a preparation method thereof, wherein the antique wood grain quartz stone plate is prepared by taking quartz sand with different grain diameters, quartz powder, resin, a curing agent, a coupling agent and toner with different colors as raw materials; the effect is close to nature, the texture is fine and smooth, the appearance is attractive and elegant, and the mechanical property is good; the artificial quartz stone plate is not easy to deform, crack, fade, lose luster and the like, and has low production cost and good decorative effect. The product has the characteristics of multiple colors and high hardness, and is beautiful, elegant and strong in decoration; vinyl ester resin and the like are arranged at the bonding position, so that the corrosion of the pattern bonding position due to the contact of oil dirt can be avoided, the stability of the bonding position can be improved, the occurrence of cracks is avoided, and the service life of the patterns of the whole quartz stone is prolonged.)

1. The preparation method of the antique wood grain quartz stone plate is characterized by comprising the following specific steps:

(1) firstly, mixing 40-70 mesh quartz sand, 70-120 mesh quartz sand, resin, a curing agent, a coupling agent and 325-400 mesh quartz powder with dark gray A toner or light gray B toner or gray C toner respectively to prepare material A, material B or material C;

(2) then, pouring the deep gray material A into a cloth enclosing frame to be spread, spreading the material B and the material C on the material A, extruding the material B and the material C into an ancient wood grain line shape, and then cutting the material A into a plurality of prefabricated strips by using an automatic slitter;

(3) and finally, placing the prefabricated strips on a rubber film upwards according to the reverse side of the designed pattern, and performing vibration pressing by using a press to obtain the antique wood grain quartz stone plate.

2. The method for preparing the compound according to claim 1, wherein the specific method of the step (1) is as follows: adding 40-70 mesh quartz sand and 70-120 mesh quartz sand into a stirring barrel, stirring for the first time, uniformly mixing, then adding toner A or toner B or toner C and resin premix, curing agent and coupling agent, stirring for the second time to fully mix resin and quartz sand, then adding 325-400 mesh quartz powder, and stirring for the third time to obtain material A, material B or material C.

3. The preparation method according to claim 2, wherein the process conditions of the first stirring are as follows: stirring at a low speed, and turning forward and backward for one circle; the technological conditions of the second stirring are as follows: stirring at a low speed for two circles; the technological conditions of the third stirring are as follows: stirring was carried out for 3 minutes from slow to fast.

4. The production method according to claim 1, wherein in the step (2), the pressure is applied by a specific method comprising: and the ancient wood grain lines are formed by back and forth pressure of a pressure machine.

5. The manufacturing method according to claim 1, wherein in the step (3), the process conditions of the vibration pressing are as follows: 35Hz, 10 s; 39Hz, 10 s; 44Hz, 10 s; 46Hz, 20 s; 47Hz, 20 s.

6. The preparation method according to claim 1, wherein the materials A, B and C, except for the toner, comprise the following raw materials in parts by weight: 27-32 parts of 325-400 mesh quartz powder, 25-33 parts of 40-70 mesh quartz sand, 30-36 parts of 70-120 mesh quartz sand, 9 parts of resin, 0.009-0.012 part of curing agent and 0.009-0.012 part of coupling agent.

7. The preparation method of the board material as claimed in claim 1, wherein the weight ratio of the material A, the material B and the material C in the whole board material is 50-60%, 25-35% and 5-15% in sequence.

8. The preparation method according to claim 1, wherein the modified polyamide fiber is added in the step (1), the addition amount is 2-3% of the weight of the resin, and the modified polyamide fiber is added together with the quartz sand of 40-70 meshes; the modified polyamide fiber is obtained by modifying polyamide resin by using superfine Hetian jade powder.

9. An antique wood grain quartz stone plate obtained by the preparation method of claims 1-8.

Technical Field

The invention relates to the technical field of building materials, in particular to an antique wood grain quartz stone plate and a preparation method thereof.

Background

The quartz stone plate is a building decoration material commonly used in the building decoration industry, and the main material of the quartz stone plate is quartz stone which is formed by bonding and pressing quartz stone crushed aggregates and resin. Because the quartz stone has the characteristics of acid and alkali resistance and very high hardness, the quartz composite board has better wear resistance and stronger acid and alkali corrosion resistance, and the polished surface has good surface gloss retention capability, so the quartz composite board is widely applied to the building decoration industry at present and is the best building decoration material for laying the ground and the wall.

In the production process of the quartz stone plate, the reasonable grading mixing and pressing process of the quartz stone particles with different specifications is a key factor for determining the density of the quartz stone plate, however, the improvement of the mechanical property is not necessarily brought by the improvement of the density.

Patent CN101824888B discloses a quartz plate, which is obtained by pressing through the bonding effect of unsaturated polyester resin, and although the density is greatly improved, the mechanical properties are not ideal.

Moreover, with the rapid development of the quartz stone industry, the pursuit of the plate by human beings is no longer satisfied with the ordinary quartz stone plate, but is more and more concerned and favored with the plate which is rich and colorful and is closer to the nature.

Disclosure of Invention

The invention aims to provide an antique wood grain quartz stone plate and a preparation method thereof, wherein the antique wood grain quartz stone plate has antique wood grains and excellent mechanical properties.

In order to achieve the purpose, the invention is realized by the following scheme:

a preparation method of an antique wood grain quartz stone plate comprises the following specific steps:

(1) firstly, mixing 40-70 mesh quartz sand, 70-120 mesh quartz sand, resin, a curing agent, a coupling agent and 325-400 mesh quartz powder with dark gray A toner or light gray B toner or gray C toner respectively to prepare material A, material B or material C;

(2) then, pouring the deep gray material A into a cloth enclosing frame to be spread, spreading the material B and the material C on the material A, extruding the material B and the material C into an ancient wood grain line shape, and then cutting the material A into a plurality of prefabricated strips by using an automatic slitter;

(3) and finally, placing the prefabricated strips on a rubber film upwards according to the reverse side of the designed pattern, and performing vibration pressing by using a press to obtain the antique wood grain quartz stone plate.

Preferably, the specific method of step (1) is: adding 40-70 mesh quartz sand and 70-120 mesh quartz sand into a stirring barrel, stirring for the first time, uniformly mixing, then adding toner A or toner B or toner C and resin premix, curing agent and coupling agent, stirring for the second time to fully mix resin and quartz sand, then adding 325-400 mesh quartz powder, and stirring for the third time to obtain material A, material B or material C.

Further preferably, the process conditions of the first stirring are as follows: stirring at a slow speed (30 r/min) for one turn; the technological conditions of the second stirring are as follows: stirring at a slow speed (30 r/min) for two circles; the technological conditions of the third stirring are as follows: stirring was carried out for 3 minutes from slow (30 r/min) to fast (300 r/min).

Preferably, in the step (2), the specific method for expelling the pressure is as follows: and the ancient wood grain lines are formed by back and forth pressure of a pressure machine.

Preferably, in the step (3), the process conditions of the vibration pressing are as follows: 35Hz, 10 s; 39Hz, 10 s; 44Hz, 10 s; 46Hz, 20 s; 47Hz, 20 s.

Preferably, the material A, the material B or the material C comprises the following raw materials in parts by weight except for the toner: 27-32 parts of 325-400 mesh quartz powder, 25-33 parts of 40-70 mesh quartz sand, 30-36 parts of 70-120 mesh quartz sand, 9 parts of resin, 0.009-0.012 part of curing agent and 0.009-0.012 part of coupling agent.

Preferably, the weight percentage of the material A, the material B and the material C in the whole plate is 50-60%, 25-35% and 5-15% in sequence.

Preferably, the preparation method of the premix of the toner A and the resin comprises the following steps in parts by weight: mixing 10 parts of resin, 2 parts of titanium dioxide, 0.5 part of Lexuan (black Bayer Lexie iron oxide), 0.2 part of Lehuang (yellow Bayer Lexie iron oxide) and 0.02 part of Lexuan (brown Bayer Lexie iron oxide), and dispersing at high speed for 1-2.5 hours by using a dispersion machine.

Preferably, the preparation method of the premix of the B toner and the resin comprises the following steps in parts by weight: mixing 8 parts of resin, 1.5 parts of titanium dioxide, 0.3 part of Lehei, 0.01 part of Lebei and 0.03 part of Lehuang, and dispersing for 1-2.5 hours at a high speed by using a dispersion machine.

Preferably, the preparation method of the premix of the toner C and the resin comprises the following steps in parts by weight: 5 parts of resin, 1 part of titanium dioxide, 0.05 part of Lehei and 0.005 part of Lehuang are mixed and dispersed for 1 to 2.5 hours at high speed by a dispersion machine.

Preferably, the resin is selected from any one or more of epoxy modified acrylic resin 7908A, alkyd resin or vinyl ester resin.

Preferably, the coupling agent is selected from any one or more of silane coupling agents KH550, KH560, KH570, KH792, DL602 and DL 171.

Preferably, the curing agent is selected from any one or more of tert-butyl peroxide, cyanamide (DICY), m-phenylenediamine (MPDA) and methylene bis-phenylenediamine (MDA).

Preferably, the modified polyamide fiber is added in the step (1), the adding amount of the modified polyamide fiber is 2-3% of the weight of the resin, and the modified polyamide fiber and the quartz sand of 40-70 meshes are added together when the modified polyamide fiber is fed; the modified polyamide fiber is obtained by modifying polyamide resin by using superfine Hetian jade powder.

Further preferably, the modified polyamide fiber is prepared by the following method: polyamide resin and superfine Hetian jade powder with the particle size of less than or equal to 10nm are mixed according to the mass ratio of 1: and (3) melting and mixing at a high temperature of 0.03-0.05 to prepare slurry, and spinning to prepare the modified polyamide fiber.

Still more preferably, the preparation method of the ultrafine Hetian jade powder is as follows: mechanically crushing leftover materials of Hetian jade to prepare Hetian jade coarse powder with the particle size of less than or equal to 5mm, mixing the Hetian jade coarse powder with a grinding aid and a solvent to prepare treated slurry of which the mass percent is 30-40%, grinding by a wet method for 5-8 minutes, centrifuging, drying and scattering to obtain superfine Hetian jade powder with the particle size of less than or equal to 10 nm; wherein the mass ratio of the grinding aid to the solvent is 0.5-0.6: 100, the solvent is isopropanol, and the grinding aid is prepared by uniformly mixing the following components in parts by weight: 1 part of ethylene glycol, 2-3 parts of triethanolamine, 3-4 parts of sodium stearate and 3-4 parts of maleic acid olefin copolymer.

Still more preferably, the mechanical pulverization is selected from any one or more of jaw pulverization, cone pulverization, roller pulverization, hammer pulverization or impact pulverization; the wet grinding adopts a colloid mill, the gap between two grinding discs of the colloid mill is 0.02-0.03 mm, and the rotating speed is 10000-12000 r/min; the process conditions of centrifugation are as follows: centrifuging at 10000-12000 r/min for 5-6 minutes, and removing supernatant; the drying process condition is drying for 5-8 hours at 90-100 ℃; and scattering the dried material by using air flow.

More preferably, the high-temperature melt mixing method comprises the following steps: the polyamide resin is heated to be molten, then the superfine Hetian jade powder is added, and ultrasonic dispersion is carried out for 2-3 hours, so as to obtain the slurry.

More preferably, the specific method for spinning is as follows: the slurry is sent to a spinning machine through a circulating pipeline, is metered through a metering pump, then enters a spinning nozzle through a filter and a connecting pipe, 8000-16000 holes are regularly distributed on the spinning nozzle, the aperture is 0.02-0.05 mm, the slurry is extruded through the holes of the spinning nozzle to form stock solution trickle, the pressure is 5-10 MPa, and finally, the fiber is obtained through a coagulation bath.

More preferably, the solvent in the dope fine stream diffuses into the coagulation bath, and the coagulant in the coagulation bath permeates into the dope fine stream to reach a critical concentration, and the fiber is precipitated in the coagulation bath.

More preferably, the coagulating bath is a water bath with the mass content of a coagulant of 5-10%, and the coagulant is selected from CaCl₂·2H₂O、CaSO₄·2H₂O、MgCl₂·H₂Any one of O.

The antique wood grain quartz stone plate is obtained by the preparation method.

The invention has the beneficial effects that:

the invention takes quartz sand with different grain diameters, quartz powder, resin, curing agent, coupling agent and toner with different colors as raw materials to prepare the antique wood grain quartz stone plate.

1. The effect is close to nature, the texture is fine and smooth, the appearance is elegant, and the mechanical property is good.

2. The artificial quartz stone plate is not easy to deform, crack, fade, lose luster and the like, and has low production cost and good decorative effect. Has the characteristics of multiple colors and high hardness, and the product is beautiful, elegant and strong in decoration.

3. Vinyl ester resin and the like are arranged at the bonding position, so that the corrosion of the pattern bonding position due to the contact of oil dirt can be avoided, the stability of the bonding position can be improved, the occurrence of cracks is avoided, and the service life of the patterns of the whole quartz stone is prolonged.

4. The toner of the invention comprises a dark gray toner A, a light gray toner B and a gray toner C, which are correspondingly prepared into a material A, a material B and a material C, the dark gray toner A is poured into a cloth enclosing frame to be spread flat, the material B and the material C are spread on the material A, pressed into an ancient wood grain line shape, and then cut into a plurality of prefabricated strips by an automatic slitter; and finally, placing the prefabricated strips on a rubber film upwards according to the reverse side of the designed pattern, and performing vibration pressing by using a press. The quartz stone plate with good decorative effect is obtained by matching different colors.

5. The invention also introduces modified polyamide fiber, which is obtained by modifying polyamide resin by using the ultrafine powder of the Hetian jade, the main structure of the polyamide fiber is the polyamide fiber embedded with the ultrafine Hetian jade powder, the polyamide fiber has good mechanical property, heat resistance and abrasion resistance, and the Hetian jade has good hardness and toughness and good luster, so that the attractiveness of the product can be further improved. The Hetian jade is of a felt-like structure and can be tightly combined with the polyamide fiber, so that the mechanical property of the product is further improved.

Drawings

Fig. 1a and 1b are external views of the plate obtained by the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious 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.