CN114292121A - Ceramic composite board for interior decoration and preparation method thereof - Google Patents
Ceramic composite board for interior decoration and preparation method thereof Download PDFInfo
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- CN114292121A CN114292121A CN202210039069.XA CN202210039069A CN114292121A CN 114292121 A CN114292121 A CN 114292121A CN 202210039069 A CN202210039069 A CN 202210039069A CN 114292121 A CN114292121 A CN 114292121A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 146
- 239000002131 composite material Substances 0.000 title claims abstract description 62
- 238000005034 decoration Methods 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 240000008564 Boehmeria nivea Species 0.000 claims abstract description 64
- 239000000835 fiber Substances 0.000 claims abstract description 58
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 50
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 45
- 229920000570 polyether Polymers 0.000 claims abstract description 45
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 30
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 23
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 11
- 238000010304 firing Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 4
- 238000005187 foaming Methods 0.000 claims abstract description 4
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- 229920001971 elastomer Polymers 0.000 claims description 28
- 239000005060 rubber Substances 0.000 claims description 28
- 229920002545 silicone oil Polymers 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 17
- -1 hydroxy ethoxy propyl Chemical group 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 16
- GCYHRYNSUGLLMA-UHFFFAOYSA-N 2-prop-2-enoxyethanol Chemical compound OCCOCC=C GCYHRYNSUGLLMA-UHFFFAOYSA-N 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 11
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 10
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 10
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000012298 atmosphere Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
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- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000003995 emulsifying agent Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 14
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- 229910000831 Steel Inorganic materials 0.000 description 4
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- 238000002347 injection Methods 0.000 description 2
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- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
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- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a ceramic composite board for interior decoration and a preparation method thereof, and relates to the technical field of composite materials. The ceramic composite board for indoor decoration prepared by the invention sequentially comprises a foamed ceramic board, a polyether layer and a nitrile rubber layer from inside to outside; the nitrile rubber layer is prepared by adding modified ramie fiber as a filler as a reinforcement into carboxyl-terminated nitrile rubber; the foaming ceramic plate is formed by firing ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether; the polyether layer is fatty alcohol-polyoxyethylene ether; in the ceramic composite board for indoor decoration prepared by the invention, the modified ramie fibers disperse and disperse stress, the impact resistance of the ceramic composite board is enhanced, the nitrile rubber is cured and molded on the polyether layer, and the nitrile rubber, the polyether layer and the foamed ceramic board are tightly connected while curing, so that the peeling strength and the heat insulation property of the ceramic composite board are enhanced.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a ceramic composite board for interior decoration and a preparation method thereof.
Background
The ceramic rubber composite board is composed of wear-resistant ceramic blocks, rubber plates and steel plates. The rubber plate is laid on the steel plate, the ceramic block is laid on the rubber plate, and the rubber plate, the ceramic block and the rubber block are bonded together through hot vulcanization. The ceramic rubber composite board is especially suitable for conveying powder-containing and particle-containing airflow, dust-collecting and conveying, residue conveying and conveying of ores and materials with abrasion performance, can be widely applied to industries such as thermal power plants, steel plants, glass plants, mines, cement manufacturing and the like, but is not suitable for indoor decoration.
But the ceramic and the rubber are prepared into the composite board, and the composite board is very suitable for indoor decoration. Therefore, the ceramic composite board is prepared by researching without using a steel plate, is compounded with rubber, has excellent heat resistance and heat preservation, has high peel strength, and is very suitable for indoor decoration.
Disclosure of Invention
The invention aims to provide a ceramic composite board for interior decoration and a preparation method thereof, so as to solve the problems in the background technology.
A ceramic composite board for interior decoration comprises a foamed ceramic board, a polyether layer and a nitrile rubber layer from inside to outside in sequence; the foaming ceramic plate is formed by firing ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether; the polyether layer is fatty alcohol-polyoxyethylene ether; the nitrile rubber layer is prepared by adding modified ramie fibers serving as fillers serving as reinforcements into carboxyl-terminated nitrile rubber.
Preferably, the feed mainly comprises the following raw materials in parts by weight: 100-200 parts of foamed ceramic plate, 12.5-40 parts of nitrile rubber and 2-6 parts of fatty alcohol-polyoxyethylene ether.
Preferably, the modified ramie fiber is prepared by performing hydrophobic modification on the ramie fiber by using hydroxyethoxypropyl silicone oil.
Preferably, the preparation method of the ceramic composite plate for interior decoration comprises the following steps: preparing modified ramie fibers, preparing a foamed ceramic plate, preparing a polyether layer foamed ceramic plate, and preparing a ceramic composite plate for interior decoration.
Preferably, the preparation method of the ceramic composite plate for interior decoration comprises the following specific steps:
(1) grinding ramie fibers and then sieving the ground ramie fibers with a 120-mesh sieve to obtain ramie fiber powder; ramie fiber powder, hydroxyl ethoxy propyl silicone oil, an emulsifier OP-10 and epoxy chloropropane are mixed according to the mass ratio of 10: 1: 0.1: 1-10: 1.5: 0.15: 1.5, mixing, placing in a reaction kettle, reacting with 150-180 ℃ for 2-3 h under the atmosphere of ammonia gas, and cooling to room temperature to obtain modified ramie;
(2) ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether are mixed according to the mass ratio of 10: 0.3: 0.3-10: 0.5: 0.5, mixing, placing in a mold, preheating in a microwave oven, transferring to a sintering furnace, sintering at 1200-1500 ℃ in a nitrogen atmosphere, and obtaining a foamed ceramic plate after 5-8 min; cooling to room temperature at the speed of 10-20 ℃/min, coating fatty alcohol-polyoxyethylene ether with the mass of 0.02-0.03 time that of the foamed ceramic plate on the surface of the foamed ceramic plate every 10-15 min during cooling, and cooling the foamed ceramic plate to room temperature to obtain the foamed ceramic plate with the polyether layer;
(3) the carboxyl-terminated nitrile rubber and curing agent isocyanate are mixed according to the mass ratio of 20: 1-20: 2, mixing and heating the mixture to a molten state, placing the mixture into a spray gun A, placing the modified ramie fibers into a spray gun B, placing 10-20% of ammonia water in mass percent into a spray gun C, fixing and rotating the foamed ceramic plate with the polyether layer, and spraying the spray gun to spray and mold the nitrile rubber to obtain the ceramic composite plate for indoor decoration.
Preferably, in the step (1): the preparation method of the ethoxyl propyl silicone oil comprises the following steps: heating hydrogen-containing silicone oil to 100-120 ℃ in a nitrogen atmosphere, preserving heat for 2 hours, and cooling to room temperature for later use; heating ethylene glycol monoallyl ether to 60-70 ℃, adding isopropanol-chloroplatinic acid with the mass of 0.01 time of that of the ethylene glycol monoallyl ether, uniformly stirring, dropwise adding hydrogen-containing silicone oil with the mass of 0.5-0.8 time of that of the ethylene glycol monoallyl ether at a rate of 4-5 ml/min, reacting for 3-4 h after dropwise adding is finished, and adsorbing and purifying with diatomite to obtain the hydroxyethoxypropyl silicone oil.
Preferably, in the step (2): during preheating, the frequency of the microwave oven is 800-1000 MHz, and the preheating time is 10-15 min.
Preferably, in the step (3): when spraying, the ambient temperature is 90-100 ℃, the rotating speed of the foamed ceramic plate with the polyether layer is 4-5 rpm, the spraying speed of the spraying gun A is 15-25 ml/min, the speed of the spraying gun B is 0.5-0.8 g/min, the speed of the spraying gun C is 3-5 ml/min, and the spraying guns A, B, C spray simultaneously.
Preferably, in the step (3): the mass ratio of the foamed ceramic plate with the polyether layer, the carboxyl-terminated butadiene-acrylonitrile rubber, the modified ramie fibers and the ammonia water is 40: 5: 0.1: 2-40: 8: 0.3: 5.
preferably, in the step (3): and compacting by using a roller or a rubber roller after injection molding, and curing to obtain the ceramic composite board for indoor decoration.
Compared with the prior art, the invention has the following beneficial effects:
the ceramic composite board for indoor decoration prepared by the invention sequentially comprises a foamed ceramic board, a polyether layer and a nitrile rubber layer from inside to outside; the nitrile rubber is prepared by adding modified ramie fiber as a filler as a reinforcement into carboxyl-terminated nitrile rubber; the foaming ceramic plate is formed by firing ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether; the polyether layer is fatty alcohol-polyoxyethylene ether;
the modified ramie fiber is prepared by performing hydrophobic modification on the ramie fiber by using hydroxyl ethoxy propyl silicone oil; the hydroxyethyl propyl silicone oil is coated on the surface of the ramie fiber, so that the hydrophilicity is reduced, the agglomeration is reduced, and the heat resistance is improved; the modified ramie fibers are added into the carboxyl-terminated nitrile-butadiene rubber, the carboxyl-terminated nitrile-butadiene rubber reacts with hydroxyl on the modified ramie fibers, and the modified ramie fibers are introduced into the molecular chain of the carboxyl-terminated nitrile-butadiene rubber, so that the heat resistance of the nitrile-butadiene rubber is improved, and after the surface of the ceramic composite board is impacted, the stress is dispersed along the modified ramie fibers in the nitrile-butadiene rubber, so that the impact resistance of the ceramic composite board is enhanced;
the method comprises the following steps of (1) using fatty alcohol-polyoxyethylene ether as a microwave coupling agent and silicon carbide as a foaming agent, preheating by microwave, and then firing and forming to prepare a foamed ceramic plate; the fatty alcohol-polyoxyethylene ether absorbs enough microwave storage energy during microwave heating, and the microstructure of the foamed ceramic plate is adjusted under the action of microwaves, so that closed pores inside the foamed ceramic plate are stable and uniform; the heat preservation and heat insulation performance of the ceramic composite board is ensured; when the ceramic composite board is cooled after sintering, fatty alcohol-polyoxyethylene ether is coated on the surface of the foamed ceramic board, the surface is continuously foamed by utilizing waste heat, surface air holes are deepened, a polyether layer is further formed by being adsorbed in the surface air holes of the foamed ceramic board due to expansion with heat and contraction with cold, and finally carboxyl-terminated butadiene-acrylonitrile rubber, modified ramie fiber, a curing agent and an initiator are sprayed and formed on the surface of the polyether layer in an acid atmosphere, the butadiene-acrylonitrile rubber is cured and formed on the polyether layer, meanwhile, hydroxyl on the modified ramie fiber and carboxyl on the fatty alcohol-polyoxyethylene ether react with carboxyl on the carboxyl-terminated butadiene-acrylonitrile rubber, the butadiene-acrylonitrile rubber and the polyether layer are tightly connected with the foamed ceramic board during curing, and the peeling strength and the heat preservation and heat insulation performance of the ceramic composite board are enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In order to more clearly illustrate the method provided by the present invention, the following examples are given to illustrate the method for testing each index of the ceramic composite panel for interior decoration prepared in the examples and comparative examples as follows:
heat resistance: the ceramic composite panel ceramic rubber composite panel for interior decoration prepared in the examples and comparative examples passed the TG test for the initial decomposition temperature of the nitrile rubber layer in an oxygen atmosphere.
Heat preservation: the ceramic composite panels for interior decoration prepared in examples and comparative examples were subjected to a thermal conductivity test using a laser thermal conductivity meter.
Peel strength: the ceramic composite panels for interior decoration prepared in examples and comparative examples were subjected to peel strength tests of the foamed ceramic plate and the polyether layer with the polyether layer and the nitrile rubber layer with reference to GB/T279.
Example 1
A ceramic composite board for interior decoration mainly comprises the following components in parts by weight:
100 parts of foamed ceramic plate, 12.5 parts of nitrile rubber and 2 parts of fatty alcohol-polyoxyethylene ether.
A preparation method of a ceramic composite board for interior decoration comprises the following steps:
(1) grinding ramie fibers and then sieving the ground ramie fibers with a 120-mesh sieve to obtain ramie fiber powder; heating hydrogen-containing silicone oil to 100 ℃ in a nitrogen atmosphere, preserving heat for 2h, and cooling to room temperature for later use; heating ethylene glycol monoallyl ether to 60 ℃, adding isopropanol-chloroplatinic acid with the mass of 0.01 time of that of the ethylene glycol monoallyl ether, uniformly stirring, dropwise adding hydrogen-containing silicone oil with the mass of 0.5 time of that of the ethylene glycol monoallyl ether at a rate of 4ml/min, reacting for 3 hours after dropwise addition is finished, and adsorbing and purifying with diatomite to obtain hydroxyethoxypropyl silicone oil; ramie fiber powder, hydroxyl ethoxy propyl silicone oil, an emulsifier OP-10 and epoxy chloropropane are mixed according to the mass ratio of 10: 1: 0.1: 1, mixing, placing in a reaction kettle, reacting with 150 ℃ for 2h under the atmosphere of ammonia gas, and cooling to room temperature to obtain modified ramie;
(2) ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether are mixed according to the mass ratio of 10: 0.3: 0.3, placing the mixture in a mould, preheating the mixture in a microwave oven for 10min, wherein the frequency of the microwave oven is 800MHz, sintering the mixture at 1200 ℃ in a nitrogen atmosphere, and preparing a foamed ceramic plate after 5 min; cooling to room temperature at the speed of 10 ℃/min, coating fatty alcohol-polyoxyethylene ether with the mass of 0.02 time of that of the foamed ceramic plate on the surface of the foamed ceramic plate every 10min when the temperature is reduced, and cooling the foamed ceramic plate to the room temperature to obtain the foamed ceramic plate with the polyether layer;
(3) the carboxyl-terminated nitrile rubber and curing agent isocyanate are mixed according to the mass ratio of 20: 1, mixing and heating the mixture to a molten state, placing the mixture in a spray gun A, placing modified ramie fibers in a spray gun B, placing 10% by mass of ammonia water in a spray gun C, fixing and rotating a foamed ceramic plate with a polyether layer, wherein the ambient temperature is 90 ℃, the rotating speed of the foamed ceramic plate with the polyether layer is 4rpm, the injection rate of the spray gun A is 15ml/min, the rate of the spray gun B is 0.5g/min, the rate of the spray gun C is 3ml/min, the spray guns A, B, C simultaneously inject, and the mass ratio of the foamed ceramic plate with the polyether layer, the carboxyl-terminated butadiene-acrylonitrile rubber, the modified ramie fibers and the ammonia water is 40: 5: 0.1: and 2, carrying out injection molding on the nitrile rubber, compacting by using a roller or a rubber roller after the injection molding, and curing to obtain the ceramic composite board for indoor decoration.
Example 2
A ceramic composite board for interior decoration mainly comprises the following components in parts by weight:
150 parts of foamed ceramic plate, 22.5 parts of nitrile rubber and 4 parts of fatty alcohol-polyoxyethylene ether.
A preparation method of a ceramic composite board for interior decoration comprises the following steps:
(1) grinding ramie fibers and then sieving the ground ramie fibers with a 120-mesh sieve to obtain ramie fiber powder; heating hydrogen-containing silicone oil to 110 ℃ in a nitrogen atmosphere, preserving heat for 2h, and cooling to room temperature for later use; heating ethylene glycol monoallyl ether to 65 ℃, adding isopropanol-chloroplatinic acid with the mass of 0.01 time of that of the ethylene glycol monoallyl ether, uniformly stirring, dropwise adding hydrogen-containing silicone oil with the mass of 0.6 time of that of the ethylene glycol monoallyl ether at a rate of 5ml/min, reacting for 4 hours after dropwise addition is finished, and adsorbing and purifying with diatomite to obtain hydroxyethoxypropyl silicone oil; ramie fiber powder, hydroxyl ethoxy propyl silicone oil, an emulsifier OP-10 and epoxy chloropropane are mixed according to the mass ratio of 10: 1.2: 0.12: 12, mixing, placing in a reaction kettle, reacting with 170 ℃ for 2.5h under the atmosphere of ammonia gas, and cooling to room temperature to obtain modified ramie;
(2) ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether are mixed according to the mass ratio of 10: 0.4: 0.4, placing the mixture in a mould, preheating the mixture in a microwave oven for 13min, sintering the mixture at 1400 ℃ in the nitrogen atmosphere at the frequency of 900MHz in the microwave oven, and obtaining a foamed ceramic plate after 7 min; cooling to room temperature at the speed of 15 ℃/min, coating fatty alcohol-polyoxyethylene ether with the mass of 0.02 time of that of the foamed ceramic plate on the surface of the foamed ceramic plate every 13min during cooling, and cooling the foamed ceramic plate to the room temperature to obtain the foamed ceramic plate with the polyether layer;
(3) the carboxyl-terminated nitrile rubber and curing agent isocyanate are mixed according to the mass ratio of 20: 1.5, mixing and heating to a molten state, placing the mixture in a spray gun A, placing the modified ramie fibers in a spray gun B, placing 15% by mass of ammonia water in a spray gun C, fixing and rotating the foamed ceramic plate with the polyether layer, wherein the ambient temperature is 95 ℃ during spraying, the rotating speed of the foamed ceramic plate with the polyether layer is 4rpm, the spraying speed of the spray gun A is 20ml/min, the speed of the spray gun B is 0.7g/min, the speed of the spray gun C is 4ml/min, the spray gun A, B, C simultaneously sprays, and the mass ratio of the foamed ceramic plate with the polyether layer, the carboxyl-terminated butadiene-acrylonitrile rubber, the modified ramie fibers and the ammonia water is 40: 6: 0.2: and 3, performing injection molding on the nitrile rubber, compacting by using a roller or a rubber roller after the injection molding, and curing to obtain the ceramic composite board for indoor decoration.
Example 3
A ceramic composite board for interior decoration mainly comprises the following components in parts by weight:
200 parts of foamed ceramic plate, 40 parts of nitrile rubber and 6 parts of fatty alcohol-polyoxyethylene ether.
A preparation method of a ceramic composite board for interior decoration comprises the following steps:
(1) grinding ramie fibers and then sieving the ground ramie fibers with a 120-mesh sieve to obtain ramie fiber powder; heating hydrogen-containing silicone oil to 100 ℃ in a nitrogen atmosphere, preserving heat for 2h, and cooling to room temperature for later use; heating ethylene glycol monoallyl ether to 70 ℃, adding isopropanol-chloroplatinic acid with the mass of 0.01 time of that of the ethylene glycol monoallyl ether, uniformly stirring, dropwise adding hydrogen-containing silicone oil with the mass of 0.8 time of that of the ethylene glycol monoallyl ether at a rate of 4ml/min, reacting for 3 hours after dropwise addition is finished, and adsorbing and purifying with diatomite to obtain hydroxyethoxypropyl silicone oil; ramie fiber powder, hydroxyl ethoxy propyl silicone oil, an emulsifier OP-10 and epoxy chloropropane are mixed according to the mass ratio of 10: 1.5: 0.15: 15, mixing, placing in a reaction kettle, reacting with 180 ℃ for 3h under the atmosphere of ammonia gas, and cooling to room temperature to obtain modified ramie;
(2) ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether are mixed according to the mass ratio of 10: 0.5: 0.5, placing the mixture in a mold, preheating the mixture in a microwave oven for 15min, sintering the mixture at 1500 ℃ in the nitrogen atmosphere at the frequency of 1000MHz in the microwave oven, and obtaining a foamed ceramic plate after 8 min; cooling to room temperature at the speed of 20 ℃/min, coating fatty alcohol-polyoxyethylene ether with the mass of 0.03 time of that of the foamed ceramic plate on the surface of the foamed ceramic plate every 15min when the foamed ceramic plate is cooled to room temperature, and preparing the foamed ceramic plate with the polyether layer;
(3) the carboxyl-terminated nitrile rubber and curing agent isocyanate are mixed according to the mass ratio of 20: 1, mixing and heating the mixture to a molten state, placing the mixture in a spray gun A, placing modified ramie fibers in a spray gun B, placing 10% by mass of ammonia water in a spray gun C, fixing and rotating a foamed ceramic plate with a polyether layer, wherein the ambient temperature is 90 ℃, the rotating speed of the foamed ceramic plate with the polyether layer is 5rpm, the injection rate of the spray gun A is 25ml/min, the rate of the spray gun B is 0.8g/min, the rate of the spray gun C is 5ml/min, the spray gun A, B, C simultaneously injects the foamed ceramic plate with the polyether layer, the carboxyl-terminated butadiene-acrylonitrile rubber, the modified ramie fibers and the ammonia water in a mass ratio of 40: 8: 0.3: and 5, performing injection molding on the nitrile rubber, compacting by using a roller or a rubber roller after the injection molding, and curing to obtain the ceramic composite board for indoor decoration.
Comparative example 1
The formulation of comparative example 1 was the same as that of example 2. The preparation method of the ceramic composite board for interior decoration is different from the embodiment 1 only in the difference of the step (1), and the step (1) is modified as follows: grinding ramie fibers and then sieving the ground ramie fibers with a 120-mesh sieve to obtain ramie fiber powder; ramie fiber powder, hydrogen-containing silicone oil, an emulsifier OP-10 and epichlorohydrin are mixed according to the mass ratio of 10: 1.2: 0.12: 12, placing the mixture in a reaction kettle, reacting the mixture with 170 ℃ for 2.5 hours in an ammonia atmosphere, and cooling the mixture to room temperature to obtain the modified ramie. The rest of the preparation steps are the same as example 2.
Comparative example 2
Comparative example 2 was formulated in the same manner as in example 2. The preparation method of the ceramic composite plate for interior decoration is different from that of the example 1 only in the treatment of the step (2), and the step (2) is modified as follows: ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether are mixed according to the mass ratio of 10: 0.4: 0.4, placing the mixture in a mould, preheating the mixture in a microwave oven for 13min, sintering the mixture at 1400 ℃ in the nitrogen atmosphere at the frequency of 900MHz in the microwave oven, and obtaining a foamed ceramic plate after 7 min; after cooling to room temperature at the speed of 15 ℃/min, coating fatty alcohol polyoxyethylene ether with the mass of 0.2 time of that of the foamed ceramic plate on the surface of the foamed ceramic plate to prepare the foamed ceramic plate with the polyether layer. The rest of the preparation steps are the same as example 2.
Comparative example 3
The formulation of comparative example 3 was the same as that of example 2. The preparation method of the ceramic composite plate for interior decoration is different from the embodiment 1 only in the difference of the step (3), and the step (3) is modified as follows: the preparation method comprises the following steps of (1) mixing carboxyl-terminated nitrile rubber, curing agent isocyanate and modified ramie fibers in a mass ratio of 20: 10.8, mixing and heating the mixture to molten rubber, and coating the molten rubber on the surface of the foamed ceramic plate with the polyether layer, wherein the mass ratio of the foamed ceramic plate with the polyether layer to the modified ramie fibers is 40: and 0.3, curing to obtain the ceramic composite board for indoor decoration.
Examples of effects
Table 1 below shows the results of various property analyses of the rubber materials prepared using the ceramic composite panels for interior decoration according to examples 1 and 2 and comparative examples 1, 2 and 3 of the present invention.
TABLE 1
Compared with the experimental data of the comparative example and the example in the table 1, it can be obviously found that the rubber material prepared from the ceramic composite board for indoor decoration prepared in the examples 1 and 2 has high initial decomposition temperature, low thermal conductivity and high peel strength, which indicates that the heat resistance, the heat preservation property and the peel strength are good;
from the comparison of the experimental data of the embodiment 1, the embodiment 2, the embodiment 3 and the comparative example 1, it can be found that the heat resistance of the ceramic composite board for interior decoration is improved by preparing the nitrile rubber layer of the modified ramie fiber prepared by performing hydrophobic modification on the ramie fiber by using the hydroxyethoxypropyl silicone oil; from comparison of experimental data of the embodiment 1, the embodiment 2, the embodiment 3 and the comparative examples 2 and 3, it can be found that when the temperature is reduced after sintering, the surface of the foamed ceramic plate is repeatedly coated with the fatty alcohol-polyoxyethylene ether, the surface is continuously foamed by using waste heat, the surface pores are deepened, the formed polyether layer is adsorbed in the surface pores of the foamed ceramic plate, the foamed ceramic layer is tightly connected with the polyether layer, and the peeling strength is increased; meanwhile, the stripping strength of the nitrile rubber and the polyether layer is enhanced by adopting a nitrile rubber injection molding mode under an acidic condition, the polyether layer is coated after sintering and cooling, or the nitrile rubber is directly coated on the surface in a melting way, so that the stripping strength is poor.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A ceramic composite board for interior decoration is characterized in that a foamed ceramic board, a polyether layer and a nitrile rubber layer are sequentially arranged from inside to outside; the foaming ceramic plate is formed by firing ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether; the polyether layer is fatty alcohol-polyoxyethylene ether; the nitrile rubber layer is prepared by adding modified ramie fibers serving as fillers serving as reinforcements into carboxyl-terminated nitrile rubber.
2. The ceramic composite board for interior decoration according to claim 1, which mainly comprises the following raw material components in parts by weight: 100-200 parts of foamed ceramic plate, 12.5-40 parts of nitrile rubber and 2-6 parts of fatty alcohol-polyoxyethylene ether.
3. The ceramic composite board for interior decoration according to claim 2, wherein the modified ramie fiber is prepared by hydrophobically modifying ramie fiber with hydroxy ethoxy propyl silicone oil.
4. The preparation method of the ceramic composite board for interior decoration is characterized by comprising the following steps: preparing modified ramie fibers, preparing a foamed ceramic plate, preparing a polyether layer foamed ceramic plate, and preparing a ceramic composite plate for interior decoration.
5. The method for preparing the ceramic composite board for interior decoration according to claim 4, comprising the following specific steps:
(1) grinding ramie fibers and then sieving the ground ramie fibers with a 120-mesh sieve to obtain ramie fiber powder; ramie fiber powder, hydroxyl ethoxy propyl silicone oil, an emulsifier OP-10 and epoxy chloropropane are mixed according to the mass ratio of 10: 1: 0.1: 1-10: 1.5: 0.15: 1.5, mixing, placing in a reaction kettle, reacting with 150-180 ℃ for 2-3 h under the atmosphere of ammonia gas, and cooling to room temperature to obtain modified ramie;
(2) ceramic powder, silicon carbide and fatty alcohol-polyoxyethylene ether are mixed according to the mass ratio of 10: 0.3: 0.3-10: 0.5: 0.5, mixing, placing in a mold, preheating in a microwave oven, transferring to a sintering furnace, sintering at 1200-1500 ℃ in a nitrogen atmosphere, and obtaining a foamed ceramic plate after 5-8 min; cooling to room temperature at the speed of 10-20 ℃/min, coating fatty alcohol-polyoxyethylene ether with the mass of 0.02-0.03 time that of the foamed ceramic plate on the surface of the foamed ceramic plate every 10-15 min during cooling, and cooling the foamed ceramic plate to room temperature to obtain the foamed ceramic plate with the polyether layer;
(3) the carboxyl-terminated nitrile rubber and curing agent isocyanate are mixed according to the mass ratio of 20: 1-20: 2, mixing and heating the mixture to a molten state, placing the mixture into a spray gun A, placing the modified ramie fibers into a spray gun B, placing 10-20% of ammonia water in mass percent into a spray gun C, fixing and rotating the foamed ceramic plate with the polyether layer, and spraying the spray gun to spray and mold the nitrile rubber to obtain the ceramic composite plate for indoor decoration.
6. The method for preparing a ceramic composite panel for interior decoration according to claim 5, wherein in the step (1): the preparation method of the ethoxyl propyl silicone oil comprises the following steps: heating hydrogen-containing silicone oil to 100-120 ℃ in a nitrogen atmosphere, preserving heat for 2 hours, and cooling to room temperature for later use; heating ethylene glycol monoallyl ether to 60-70 ℃, adding isopropanol-chloroplatinic acid with the mass of 0.01 time of that of the ethylene glycol monoallyl ether, uniformly stirring, dropwise adding hydrogen-containing silicone oil with the mass of 0.5-0.8 time of that of the ethylene glycol monoallyl ether at a rate of 4-5 ml/min, reacting for 3-4 h after dropwise adding is finished, and adsorbing and purifying with diatomite to obtain the hydroxyethoxypropyl silicone oil.
7. The method for preparing a ceramic composite panel for interior decoration according to claim 5, wherein in the step (2): during preheating, the frequency of the microwave oven is 800-1000 MHz, and the preheating time is 10-15 min.
8. The method for preparing a ceramic composite panel for interior decoration according to claim 5, wherein in the step (3): when spraying, the ambient temperature is 90-100 ℃, the rotating speed of the foamed ceramic plate with the polyether layer is 4-5 rpm, the spraying speed of the spraying gun A is 15-25 ml/min, the speed of the spraying gun B is 0.5-0.8 g/min, the speed of the spraying gun C is 3-5 ml/min, and the spraying guns A, B, C spray simultaneously.
9. The method for preparing a ceramic composite panel for interior decoration according to claim 5, wherein in the step (3): the mass ratio of the foamed ceramic plate with the polyether layer, the carboxyl-terminated butadiene-acrylonitrile rubber, the modified ramie fibers and the ammonia water is 40: 5: 0.1: 2-40: 8: 0.3: 5.
10. the method for preparing a ceramic composite panel for interior decoration according to claim 5, wherein in the step (3): and compacting by using a roller or a rubber roller after injection molding, and curing to obtain the ceramic composite board for indoor decoration.
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