CN113233868A - Preparation process of antibacterial blank reinforcing agent for ceramic ornaments - Google Patents

Preparation process of antibacterial blank reinforcing agent for ceramic ornaments Download PDF

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Publication number
CN113233868A
CN113233868A CN202110606180.8A CN202110606180A CN113233868A CN 113233868 A CN113233868 A CN 113233868A CN 202110606180 A CN202110606180 A CN 202110606180A CN 113233868 A CN113233868 A CN 113233868A
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CN
China
Prior art keywords
parts
enzymatic hydrolysis
agent
lignin
antibacterial
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Pending
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CN202110606180.8A
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Chinese (zh)
Inventor
苏涂伟
曾宪城
陈清英
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Fujian Dehua Xinkaifeng Ceramics Co ltd
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Fujian Dehua Xinkaifeng Ceramics Co ltd
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Priority to CN202110606180.8A priority Critical patent/CN113233868A/en
Publication of CN113233868A publication Critical patent/CN113233868A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/131Inorganic additives
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/1305Organic additives
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/16Lean materials, e.g. grog, quartz
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    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • C04B2235/3463Alumino-silicates other than clay, e.g. mullite
    • C04B2235/3472Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/349Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/443Nitrates or nitrites
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

The invention discloses a preparation process of an antibacterial blank reinforcing agent for ceramic ornaments, belonging to the technical field of lignin ceramic ornaments, and comprising the following steps: s1, uniformly mixing 20-25 parts of enzymatic hydrolysis lignin and 25 parts of pretreatment liquid according to parts by weight, keeping the temperature at 38 ℃ for 50-60 min, drying at 80-100 ℃ after the treatment is finished, and inactivating enzyme to obtain modified enzymatic hydrolysis lignin; the nano antibacterial agent, the potassium feldspar and the bentonite are mixed, the modified enzymatic hydrolysis lignin and the phenolic resin are added to prepare powder serving as a green body reinforcing agent, the phenolic resin creates a powder preparation condition, the modified enzymatic hydrolysis lignin and the nano antibacterial agent are uniformly dispersed under the heating and magnetic stirring, the enzymatic hydrolysis lignin is carbonized to form a porous carrier loaded with the nano antibacterial agent when a green body is fired, and the nano antibacterial agent has a good antibacterial effect, thermal stability and strength.

Description

Preparation process of antibacterial blank reinforcing agent for ceramic ornaments
Technical Field
The invention relates to the technical field of lignin ceramic ornaments, in particular to a preparation process of an antibacterial blank reinforcing agent of a ceramic ornament.
Background
With the development of economy and the continuous improvement of the living standard of people, the requirements of people on ceramic products are higher and higher. The common ceramic products usually have the defects of poor impact resistance, low thermal shock resistance and the like, so that the problems of use safety exist, and the common ceramic products are easy to damage due to collision in the transportation, loading and unloading processes. Therefore, a preparation process of the antibacterial body reinforcing agent for the ceramic ornaments is provided.
Disclosure of Invention
The invention aims to provide a preparation process of an antibacterial blank reinforcing agent for a ceramic ornament, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation process of an antibacterial body reinforcing agent for a ceramic ornament is characterized by comprising the following steps:
s1, uniformly mixing 20-25 parts of enzymatic hydrolysis lignin and 25 parts of pretreatment liquid according to parts by weight, keeping the temperature at 38 ℃ for 50-60 min, drying at 80-100 ℃ after the treatment is finished, and inactivating enzyme to obtain modified enzymatic hydrolysis lignin;
s2, adding a surfactant and zinc nitrate into a silver nitrate aqueous solution, uniformly mixing under stirring at 1500r/min under 1200-1500r/min, continuously stirring and adding silicon dioxide, continuously stirring for 30-50 min, adding a foaming agent, stirring for 8-10 min, flatly paving foam in a container, vacuum-drying at 60-80 ℃ for 12 h, collecting powder, and grinding to obtain a nano antibacterial agent;
s3, weighing 15-20 parts of modified enzymatic hydrolysis lignin, 1-3 parts of nano antibacterial agent, 10-15 parts of potassium feldspar, 20-30 parts of bentonite, 8-10 parts of phenolic resin, 4-6 parts of curing agent and 50-70 parts of absolute ethyl alcohol according to parts by weight, and magnetically stirring under the water bath heating condition to obtain a lignin solution A;
s4, putting the lignin solution A into an electric heating vacuum drying oven for drying, and then crushing to obtain green body reinforcing agent powder.
Preferably, in the step S1, the modified enzymatic hydrolysis lignin needs to be ground by a grinder, and the ground modified enzymatic hydrolysis lignin is sieved by a 200-300 mesh sieve.
Preferably, in the step 3, the curing agent is dicyanodiamine, and when the curing agent is used, the curing agent needs to be carefully ground by a mortar and sieved by a 100-200-mesh sieve.
Preferably, the mass fraction of the phenolic resin is 10% -20%.
Compared with the prior art, the invention has the beneficial effects that:
the nano antibacterial agent, the potassium feldspar and the bentonite are mixed, the modified enzymatic hydrolysis lignin and the phenolic resin are added to prepare powder serving as a green body reinforcing agent, the phenolic resin creates a powder preparation condition, the modified enzymatic hydrolysis lignin and the nano antibacterial agent are uniformly dispersed under the heating and magnetic stirring, the enzymatic hydrolysis lignin is carbonized to form a porous carrier loaded with the nano antibacterial agent when a green body is fired, and the nano antibacterial agent has a good antibacterial effect, thermal stability and strength.
Detailed Description
The present invention provides the following 3 examples, each of which has the same steps S1 and S2, but differs in the ratio of the lignin solution a in S3. Specifically, the results are shown in Table 1.
Table 1: proportioning table of lignin solution A of examples 1-3 of the invention
The mass fraction of the phenol resin in example 1 was 15%, the mass fraction of the phenol resin in example 2 was 10%, and the mass fraction of the phenol resin in example 3 was 20%.
10 parts of the green body reinforcing agent prepared in examples 1 to 3 and other components of the green body were subjected to ball milling, aging, blank making, and firing, respectively, and the following indexes were examined. Other components of the blank body comprise 30 parts of kaolin, 25 parts of quartz, 15 parts of potassium feldspar, 10 parts of clay and 5 parts of ceramic micro powder.
The results are shown in Table 2.
Table 1: tables showing the results of the physical property tests of the high-temperature-strengthened domestic ceramics of examples 1 to 3 of the present invention and comparative examples 1 to 2
Wherein: abrasion resistance an abrasion resistance test was carried out according to the regulations of GB/T3810.7, after abrasion at 15000 revolutions: (1) if no visible abrasion exists on the surface of the product, then testing according to the regulation of GB/T3810.14, if the pollution cannot be erased, the abrasion-resistant grade is 4 grade, and if the pollution can be erased, the abrasion-resistant grade is 5 grade; (2) if there is visible wear on the surface of the product, the abrasion resistance rating is 3.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A preparation process of an antibacterial body reinforcing agent for a ceramic ornament is characterized by comprising the following steps:
s1, uniformly mixing 20-25 parts of enzymatic hydrolysis lignin and 25 parts of pretreatment liquid according to parts by weight, keeping the temperature at 38 ℃ for 50-60 min, drying at 80-100 ℃ after the treatment is finished, and inactivating enzyme to obtain modified enzymatic hydrolysis lignin;
s2, adding a surfactant and zinc nitrate into a silver nitrate aqueous solution, uniformly mixing under stirring at 1500r/min under 1200-1500r/min, continuously stirring and adding silicon dioxide, continuously stirring for 30-50 min, adding a foaming agent, stirring for 8-10 min, flatly paving foam in a container, vacuum-drying at 60-80 ℃ for 12 h, collecting powder, and grinding to obtain a nano antibacterial agent;
s3, weighing 15-20 parts of modified enzymatic hydrolysis lignin, 1-3 parts of nano antibacterial agent, 10-15 parts of potassium feldspar, 20-30 parts of bentonite, 8-10 parts of phenolic resin, 4-6 parts of curing agent and 50-70 parts of absolute ethyl alcohol according to parts by weight, and magnetically stirring under the water bath heating condition to obtain a lignin solution A;
s4, putting the lignin solution A into an electric heating vacuum drying oven for drying, and then crushing to obtain green body reinforcing agent powder.
2. The process for preparing an antibacterial reinforcing agent for a blank of a ceramic ornament according to claim 1, wherein: in the step S1, the modified enzymatic hydrolysis lignin needs to be ground by a grinding machine, and the ground modified enzymatic hydrolysis lignin is sieved by a 200-300-mesh sieve.
3. The process for preparing an antibacterial reinforcing agent for a blank of a ceramic ornament according to claim 1, wherein: in the step 3, the used curing agent is dicyanodiamine, and when the curing agent is used, the curing agent is carefully grinded by a mortar and sieved by a sieve of 100-200 meshes.
4. The process for preparing an antibacterial reinforcing agent for a blank of a ceramic ornament according to claim 1, wherein: the mass fraction of the phenolic resin is 10-20%.
CN202110606180.8A 2021-05-31 2021-05-31 Preparation process of antibacterial blank reinforcing agent for ceramic ornaments Pending CN113233868A (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102585531A (en) * 2011-12-14 2012-07-18 东北林业大学 Lignin-epoxy resin composite material and preparation method thereof
CN104403263A (en) * 2014-11-17 2015-03-11 锦州市好为尔保温材料有限公司 Toughened and reinforced phenolic foam plate
CN106045516A (en) * 2016-06-12 2016-10-26 长兴中昊化工有限公司 Process for preparing environment-friendly lignin ceramics
CN106280248A (en) * 2015-06-10 2017-01-04 天津博厚鸿德科技有限公司 A kind of multipurpose high temperature resistant porcelain agent and preparation method thereof
US20170342188A1 (en) * 2014-11-20 2017-11-30 Sumitomo Bakelite Co., Ltd. Lignin resin composition, cured product, and molded product
CN107572889A (en) * 2017-09-27 2018-01-12 佛山市欧泊石业有限公司 A kind of preparation method of High-strength artificial quartz stone plate
CN107903062A (en) * 2017-11-21 2018-04-13 北京林业大学 A kind of method for preparing wood ceramics using epoxy resin and industrial alkali lignin
CN111234455A (en) * 2020-03-26 2020-06-05 南京工业大学 Preparation method for preparing phenolic foam by enzymatic modification of lignin
CN111875294A (en) * 2020-07-20 2020-11-03 厦门金牌厨柜股份有限公司 Antibacterial and mildewproof quartz stone and preparation method thereof
CN112830763A (en) * 2021-01-22 2021-05-25 福建省德化县宝瑞陶瓷有限公司 Preparation method of thermal shock resistant antibacterial low-temperature reinforced porcelain

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102585531A (en) * 2011-12-14 2012-07-18 东北林业大学 Lignin-epoxy resin composite material and preparation method thereof
CN104403263A (en) * 2014-11-17 2015-03-11 锦州市好为尔保温材料有限公司 Toughened and reinforced phenolic foam plate
US20170342188A1 (en) * 2014-11-20 2017-11-30 Sumitomo Bakelite Co., Ltd. Lignin resin composition, cured product, and molded product
CN106280248A (en) * 2015-06-10 2017-01-04 天津博厚鸿德科技有限公司 A kind of multipurpose high temperature resistant porcelain agent and preparation method thereof
CN106045516A (en) * 2016-06-12 2016-10-26 长兴中昊化工有限公司 Process for preparing environment-friendly lignin ceramics
CN107572889A (en) * 2017-09-27 2018-01-12 佛山市欧泊石业有限公司 A kind of preparation method of High-strength artificial quartz stone plate
CN107903062A (en) * 2017-11-21 2018-04-13 北京林业大学 A kind of method for preparing wood ceramics using epoxy resin and industrial alkali lignin
CN111234455A (en) * 2020-03-26 2020-06-05 南京工业大学 Preparation method for preparing phenolic foam by enzymatic modification of lignin
CN111875294A (en) * 2020-07-20 2020-11-03 厦门金牌厨柜股份有限公司 Antibacterial and mildewproof quartz stone and preparation method thereof
CN112830763A (en) * 2021-01-22 2021-05-25 福建省德化县宝瑞陶瓷有限公司 Preparation method of thermal shock resistant antibacterial low-temperature reinforced porcelain

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