CN110105056A - A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife - Google Patents
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife Download PDFInfo
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Abstract
The invention belongs to ceramic technology field, especially a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, specifically includes the following steps: the preparation of (1) activity aluminum oxide powder；(2) raw material is weighed by weight；(3) active aluminum oxide powder, modification infusorial earth and modified micaceous mountain flour are added in adhesive aid, mild fire heating stirring clockwise, heat preservation ultrasonic treatment, chilling treatment, mild fire heating stirring counterclockwise, is added alumina silicate, lithium tantalate and CaCu 3 Ti 4 O, stirring counterclockwise, obtains mixture；(4) mixture is poured into and carries out preforming compacting in grinding tool, carry out hip treatment, sintering processes, demoulding is cooled to room temperature, polishes, polishes, puts the first edge on a knife or a pair of scissors, obtains high-intensity and high-tenacity anti-bacteria ceramic knife；Preparation cost is cheap, and simple process, overall performance is excellent, and consistent internal structure, consistency is higher, and bending resistance compression strength is big, and fracture toughness is high, and acid-alkali-corrosive-resisting is strong, and anti-microbial property is excellent, more environmentally friendly simple.
Description
Technical field
The invention belongs to ceramic technology field, especially a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife.
Background technique
Stupalox is stablized with chemical property, and compared with common metal knife, Stupalox has hardness height, wearability good, resistance to
The high feature of high temperature, sharpness, and materials safety is nontoxic, is not easy to chemically react with air or food, cutter non-corrosive,
The advantages that not destroying food delicate flavour, now gradually by big well-established and like, but existing sintex is main scarce
Point is exactly that intensity and fracture toughness are bad, and with the development of science and technology with the raising of living standards of the people, people are to life
Increasingly pay attention to the sanitary condition of living environment, and more pay attention to as the apparatus directly contacted with food, as kitchen knife
Have due to being contacted with food everyday, especially prepared food, easily become the breeding ground of bacteria breed, and uses the ceramics by germ contamination
Knife carries out cutting food, and there are food safety hazards.
Although patent publication No. is CN105236943B, patent name is a kind of Al2O3/Ti (C, N) composite ceramic cutting tool
Material and its microwave sintering process, it is intended to the mechanical property of sintex is improved, but the raising of its mechanical property is not significant, and
Antibacterial and corrosion resistance are very poor, so the present invention provides a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife.
The invention is realized by the following technical scheme:
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, specifically includes the following steps:
(1) preparation of active aluminum oxide powder, it is 80 ~ 100nm that aluminum oxide powder, which is ground to partial size, is placed in temperature
Constant temperature steam handles 14 ~ 18min, is cooled to 100 ~ 110 DEG C with the rate of temperature fall of 8 ~ 9 DEG C/min under conditions of being 280 ~ 300 DEG C
Continue constant temperature steam and handle 22 ~ 26min, in the case where power is the power of 225 ~ 235W 8 ~ 10min of microwave treatment, power be 660 ~
15 ~ 17min of microwave treatment under conditions of 680W, 8 ~ 10min of pause, under conditions of power is 435 ~ 445W microwave treatment 19 ~
21min obtains active aluminum oxide powder；
(2) raw material, 52 ~ 58 parts of active aluminum oxide powder, 17 ~ 19 parts of modification infusorial earth, alumina silicate 3.7 are weighed by weight
~ 4.1 parts, 2.9 ~ 3.3 parts of lithium tantalate, 2.9 ~ 3.3 parts of CaCu 3 Ti 4 O, 8.9 ~ 9.7 parts of modified micaceous mountain flour, adhesive aid 28 ~ 32
Part；
(3) active aluminum oxide powder, modification infusorial earth and modified micaceous mountain flour are added in adhesive aid, mild fire heating
Be 88 ~ 92 DEG C to temperature and constantly stirred clockwise with the blender that revolving speed is 360 ~ 380r/min, power be 155 ~
22 ~ 26min of heat preservation ultrasonic treatment under conditions of 165W, frequency are 91 ~ 95kHz, merging temperature are permanent under conditions of being 0.3 ~ 0.9 DEG C
Warm 90 ~ 100min of chilling treatment, it is 79 ~ 83 DEG C and continuous with the blender that revolving speed is 570 ~ 590r/min that mild fire, which is heated to temperature,
It is stirred counterclockwise, alumina silicate, lithium tantalate and CaCu 3 Ti 4 O is added, it is counterclockwise with the blender that revolving speed is 710 ~ 750r/min
44 ~ 48min is stirred, mixture is obtained；
(4) mixture is poured into and carries out preforming compacting in grinding tool, carry out hip treatment, be 1140 ~ 1180 DEG C in temperature
Under conditions of Isothermal sinter handle 22 ~ 26min, 1420 ~ 1460 DEG C of continuation constant temperature are warming up to the heating rate of 8 ~ 10 DEG C/min
28 ~ 32min of sintering processes, be cooled to the rate of temperature fall of 5 ~ 6 DEG C/min 920 ~ 960 DEG C of continuation Isothermal sinters processing 10 ~
12min, demoulding, is cooled to room temperature, polishes, polishes, puts the first edge on a knife or a pair of scissors, obtain high-intensity and high-tenacity anti-bacteria ceramic knife.
As invention further embodiment: the modification infusorial earth is prepared according to the following steps: diatomite is added
It is stirred evenly in the ethanol solution for being 19% ~ 21% to mass fraction, under conditions of merging temperature is 142 ~ 148 DEG C at heated at constant temperature
14 ~ 16min of reason, 210 ~ 220 DEG C of continuation heated at constant temperature 22 ~ 26min of processing are warming up to the heating rate of 3.2 ~ 3.8 DEG C/min,
It is cooled to room temperature, the acetum that mass fraction is 10% ~ 11% is added and stirs evenly, under conditions of temperature is 135 ~ 145 DEG C
It is dried, obtains modification infusorial earth.
As invention further embodiment: the modified micaceous mountain flour is prepared according to the following steps: by mica mountain flour
Being broken to partial size is 5 ~ 10 μm, and the nitric acid solution that mass fraction is 24% ~ 28% is added and stirs evenly, and is 2.1 ~ 2.2T in magnetic field strength
Under conditions of 17 ~ 19min of magnetization treatment, pause 8 ~ 10min, magnetic field strength be 1.0 ~ 1.1T under conditions of magnetization treatment 13 ~
15min is dried under conditions of temperature is 150 ~ 160 DEG C, obtains modified micaceous mountain flour.
As invention further embodiment: the adhesive aid is prepared according to the following steps: by 28 ~ 30 parts by weight
Fresh purslane, 13 ~ 15 parts by weight fresh needles and 48 ~ 50 parts by weight, temperature be that 46 ~ 50 DEG C of water co-grinding is beaten
Slurry, merging temperature are 50 ~ 60h of constant-temperature enclosed fermentation under conditions of 33 ~ 35 DEG C, and the cellulase of 0.6 ~ 0.7 parts by weight is added, sets
Entering temperature is 140 ~ 160h of constant-temperature enclosed fermentation under conditions of 28 ~ 30 DEG C, continues 25 ~ 30min of mild fire infusion, mistake after being boiled by slow fire
Filter, takes filtrate, and being cooled to temperature is 54 ~ 58 DEG C, and the carboxymethyl cellulose and 0.8 ~ 0.9 parts by weight of 2.3 ~ 2.5 parts by weight is added
Konjac polysaccharide, it is 85 ~ 89 DEG C and to be stirred continuously that mild fire, which is heated to temperature, is cooled to room temperature, obtains adhesive aid.
As invention further embodiment: the hip treatment, temperature be 360 ~ 370 DEG C, pressure be 47 ~
9 ~ 11min of hip treatment under conditions of 51MPa, heat etc. under conditions of temperature is 210 ~ 220 DEG C, pressure is 88 ~ 94MPa
Static pressure handles 6 ~ 8min, 13 ~ 15min of hip treatment under conditions of temperature is 480 ~ 500 DEG C, pressure is 33 ~ 37MPa,
Above-mentioned is a circulation, altogether circular treatment 2 times.
As invention further embodiment: a kind of high intensity of the preparation method preparation of high-intensity and high-tenacity anti-bacteria ceramic knife
High tenacity anti-bacteria ceramic knife.
Beneficial effects of the present invention: a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife provided by the invention, it is former
Metal ion in material containing antibacterial ability and the bioactive ingredients coordinated effect with antibacterial ability, have bacterium
Wide spectrum, efficient, safe, durable advantage, manufactured Stupalox have efficient antibacterial functions, be effective against Escherichia coli,
The growth of the bacteriums such as Penicillium notatum and staphylococcus aureus, protects food not contaminated, safe green health；It is modified by being added
Diatomite, modified micaceous mountain flour, adhesive aid and active aluminum oxide powder mixed processing, dramatically increase ceramics toughness and
Intensity effectively improves the service performance and service life of Stupalox, by the way that alumina silicate, lithium tantalate and CaCu 3 Ti 4 O is further added
Mixed processing facilitates the overall mechanical strength for promoting ceramic cutting tool material, can be effectively improved corrosion resistance, service life
It is long, use cost is reduced, the surface smoothness, wearability and heat resistance of Stupalox can be increased；Preparation cost is cheap, technique
Simply, overall performance is excellent, and consistent internal structure, consistency is higher, and bending resistance compression strength is big, and fracture toughness is high, and acid and alkali-resistance is rotten
Corrosion is strong, more environmentally friendly simple.
Specific embodiment
Illustrate the present invention with specific embodiment below, but is not limitation of the present invention.
Embodiment 1
In the embodiment of the present invention, a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, specifically includes the following steps:
(1) preparation of active aluminum oxide powder, it is 80 ~ 100nm that aluminum oxide powder, which is ground to partial size, is placed in temperature
Constant temperature steam is handled 14min, is cooled at 100 DEG C of continuation constant temperature steams with the rate of temperature fall of 8 DEG C/min under conditions of being 280 DEG C
Manage 22min, under the power that power is 225W microwave treatment 8min, under conditions of power is 660W microwave treatment 15min, temporarily
Stop 8min, microwave treatment 19min under conditions of power is 435W, obtains active aluminum oxide powder；
(2) raw material, 52 parts of active aluminum oxide powder, 17 parts of modification infusorial earth, alumina silicate 3.7 ~ 4.1 are weighed by weight
Part, 2.9 parts of lithium tantalate, 2.9 parts of CaCu 3 Ti 4 O, 8.9 parts of modified micaceous mountain flour, 28 parts of adhesive aid；
(3) active aluminum oxide powder, modification infusorial earth and modified micaceous mountain flour are added in adhesive aid, mild fire heating
Be 88 DEG C to temperature and be 360r/min with revolving speed blender constantly stirred clockwise, power be 155 ~ 165W, frequency
22 ~ 26min of heat preservation ultrasonic treatment under conditions of rate is 91kHz, constant refrigeration is handled under conditions of merging temperature is 0.3 DEG C
90min, mild fire be heated to temperature be 79 DEG C and be 570r/min with revolving speed blender constantly stirred counterclockwise, be added silicon
Sour aluminium, lithium tantalate and CaCu 3 Ti 4 O stir 44min with the blender that revolving speed is 710r/min counterclockwise, obtain mixture；
(4) mixture is poured into and carries out preforming compacting in grinding tool, carry out hip treatment, the condition for being 1140 DEG C in temperature
Lower Isothermal sinter processing 22min, 1420 DEG C of continuation Isothermal sinter processing 28min are warming up to, with the heating rate of 8 DEG C/min with 5
DEG C/rate of temperature fall of min is cooled to 920 DEG C of continuation Isothermal sinters processing 10min, demoulding is cooled to room temperature, polishes, polishes, opens
Sword obtains high-intensity and high-tenacity anti-bacteria ceramic knife.
As invention further embodiment: the modification infusorial earth is prepared according to the following steps: diatomite is added
To mass fraction be 19% ethanol solution in stir evenly, merging temperature be 142 DEG C under conditions of heated at constant temperature handle 14min,
210 DEG C of continuation heated at constant temperature processing 22min are warming up to the heating rate of 3.2 DEG C/min, is cooled to room temperature, mass fraction is added
It is stirred evenly for 10% acetum, is dried under conditions of temperature is 135 DEG C, obtains modification infusorial earth.
As invention further embodiment: the modified micaceous mountain flour is prepared according to the following steps: by mica mountain flour
Being broken to partial size is 5 ~ 10 μm, and the nitric acid solution that mass fraction is 24% is added and stirs evenly, under conditions of magnetic field strength is 2.1T
Magnetization treatment 17min, pause 8min, magnetization treatment 13min under conditions of magnetic field strength is 1.0T are 150 DEG C in temperature
Under the conditions of be dried, obtain modified micaceous mountain flour.
As invention further embodiment: the adhesive aid is prepared according to the following steps: by the new of 28 parts by weight
Fresh purslane, the fresh needles of 13 parts by weight and 48 parts by weight, the water co-grinding that temperature is 46 DEG C are beaten, and merging temperature is 33
Constant-temperature enclosed fermentation 50h under conditions of DEG C, is added the cellulase of 0.6 parts by weight, and merging temperature is constant temperature under conditions of 28 DEG C
Sealed fermenting 140h continues mild fire infusion 25min after being boiled by slow fire, filtering takes filtrate, and being cooled to temperature is 54 DEG C, is added 2.3
The konjac polysaccharide of the carboxymethyl cellulose of parts by weight and 0.8 parts by weight, mild fire is heated to temperature and is 85 DEG C and is stirred continuously, cooling
To room temperature, adhesive aid is obtained.
As invention further embodiment: the hip treatment, in the item that temperature is 360 DEG C, pressure is 47MPa
Hip treatment 9min under part, 6 ~ 8min of hip treatment under conditions of temperature is 210 DEG C, pressure is 88MPa, in temperature
Hip treatment 13min under conditions of degree is 480 DEG C, pressure is 33MPa, above-mentioned is a circulation, altogether circular treatment 2 times.
As invention further embodiment: a kind of high intensity of the preparation method preparation of high-intensity and high-tenacity anti-bacteria ceramic knife
High tenacity anti-bacteria ceramic knife.
Embodiment 2
In the embodiment of the present invention, a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, specifically includes the following steps:
(1) preparation of active aluminum oxide powder, it is 80 ~ 100nm that aluminum oxide powder, which is ground to partial size, is placed in temperature
Constant temperature steam is handled 16min, is cooled to 105 DEG C of continuation constant temperature steams with the rate of temperature fall of 8.5 DEG C/min under conditions of being 290 DEG C
Handle 24min, under the power that power is 230W microwave treatment 9min, under conditions of power is 670W microwave treatment 16min,
Suspend 9min, microwave treatment 20min under conditions of power is 440W, obtains active aluminum oxide powder；
(2) raw material, 55 parts of active aluminum oxide powder, 18 parts of modification infusorial earth, 3.9 parts of alumina silicate, tantalum are weighed by weight
3.1 parts of sour lithium, 3.1 parts of CaCu 3 Ti 4 O, 9.3 parts of modified micaceous mountain flour, 30 parts of adhesive aid；
(3) active aluminum oxide powder, modification infusorial earth and modified micaceous mountain flour are added in adhesive aid, mild fire heating
Be 90 DEG C to temperature and be 370r/min with revolving speed blender constantly stirred clockwise, power is 160W, frequency is
Heat preservation ultrasonic treatment 24min under conditions of 93kHz, constant refrigeration handles 95min, mild fire under conditions of merging temperature is 0.6 DEG C
Be heated to temperature be 81 DEG C and be 580r/min with revolving speed blender constantly stirred counterclockwise, be added alumina silicate, tantalic acid
Lithium and CaCu 3 Ti 4 O stir 46min with the blender that revolving speed is 730r/min counterclockwise, obtain mixture；
(4) mixture is poured into and carries out preforming compacting in grinding tool, carry out hip treatment, the condition for being 1160 DEG C in temperature
Lower Isothermal sinter processing 24min, be warming up to the heating rate of 9 DEG C/min 1440 DEG C of continuations Isothermal sinters handle 30min, with
The rate of temperature fall of 5.5 DEG C/min is cooled to 940 DEG C of continuation Isothermal sinter processing 11min, and demoulding is cooled to room temperature, polishes, throws
Light puts the first edge on a knife or a pair of scissors, and obtains high-intensity and high-tenacity anti-bacteria ceramic knife.
As invention further embodiment: the modification infusorial earth is prepared according to the following steps: diatomite is added
To mass fraction be 20% ethanol solution in stir evenly, merging temperature be 145 DEG C under conditions of heated at constant temperature handle 15min,
215 DEG C of continuation heated at constant temperature processing 24min are warming up to the heating rate of 3.5 DEG C/min, is cooled to room temperature, mass fraction is added
It is stirred evenly for 10.5% acetum, is dried under conditions of temperature is 140 DEG C, obtains modification infusorial earth.
As invention further embodiment: the modified micaceous mountain flour is prepared according to the following steps: by mica mountain flour
Being broken to partial size is 5 ~ 10 μm, and the nitric acid solution that mass fraction is 26% is added and stirs evenly, in the condition that magnetic field strength is 2.15T
Lower magnetization treatment 18min, pause 9min, magnetization treatment 14min under conditions of magnetic field strength is 1.05T are 155 DEG C in temperature
Under conditions of be dried, obtain modified micaceous mountain flour.
As invention further embodiment: the adhesive aid is prepared according to the following steps: by the new of 29 parts by weight
Fresh purslane, the fresh needles of 14 parts by weight and 49 parts by weight, the water co-grinding that temperature is 48 DEG C are beaten, and merging temperature is 34
Constant-temperature enclosed fermentation 55h under conditions of DEG C, is added the cellulase of 0.65 parts by weight, and merging temperature is constant temperature under conditions of 29 DEG C
Sealed fermenting 150h continues mild fire infusion 28min after being boiled by slow fire, filtering takes filtrate, and being cooled to temperature is 56 DEG C, is added 2.4
The konjac polysaccharide of the carboxymethyl cellulose of parts by weight and 0.85 parts by weight, mild fire is heated to temperature and is 87 DEG C and is stirred continuously, cold
But to room temperature, adhesive aid is obtained.
As invention further embodiment: the hip treatment, in the item that temperature is 365 DEG C, pressure is 49MPa
Hip treatment 10min under part, hip treatment 7min under conditions of temperature is 215 DEG C, pressure is 91MPa, in temperature
Hip treatment 14min under conditions of degree is 490 DEG C, pressure is 35MPa, above-mentioned is a circulation, altogether circular treatment 2 times.
As invention further embodiment: a kind of high intensity of the preparation method preparation of high-intensity and high-tenacity anti-bacteria ceramic knife
High tenacity anti-bacteria ceramic knife.
Embodiment 3
In the embodiment of the present invention, a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, specifically includes the following steps:
(1) preparation of active aluminum oxide powder, it is 80 ~ 100nm that aluminum oxide powder, which is ground to partial size, is placed in temperature
Constant temperature steam is handled 18min, is cooled at 110 DEG C of continuation constant temperature steams with the rate of temperature fall of 9 DEG C/min under conditions of being 300 DEG C
Manage 26min, under the power that power is 235W microwave treatment 10min, under conditions of power is 680W microwave treatment 17min,
Suspend 10min, microwave treatment 21min under conditions of power is 445W, obtains active aluminum oxide powder；
(2) raw material, 58 parts of active aluminum oxide powder, 19 parts of modification infusorial earth, 4.1 parts of alumina silicate, tantalum are weighed by weight
3.3 parts of sour lithium, 3.3 parts of CaCu 3 Ti 4 O, 9.7 parts of modified micaceous mountain flour, 32 parts of adhesive aid；
(3) active aluminum oxide powder, modification infusorial earth and modified micaceous mountain flour are added in adhesive aid, mild fire heating
Be 92 DEG C to temperature and be 380r/min with revolving speed blender constantly stirred clockwise, power is 165W, frequency is
Heat preservation ultrasonic treatment 26min under conditions of 95kHz, constant refrigeration handles 100min, mild fire under conditions of merging temperature is 0.9 DEG C
Be heated to temperature be 83 DEG C and be 590r/min with revolving speed blender constantly stirred counterclockwise, be added alumina silicate, tantalic acid
Lithium and CaCu 3 Ti 4 O stir 48min with the blender that revolving speed is 750r/min counterclockwise, obtain mixture；
(4) mixture is poured into and carries out preforming compacting in grinding tool, carry out hip treatment, the condition for being 1180 DEG C in temperature
Lower Isothermal sinter processing 26min, 1460 DEG C of continuation Isothermal sinter processing 32min are warming up to, with the heating rate of 10 DEG C/min with 6
DEG C/rate of temperature fall of min is cooled to 960 DEG C of continuation Isothermal sinters processing 12min, demoulding is cooled to room temperature, polishes, polishes, opens
Sword obtains high-intensity and high-tenacity anti-bacteria ceramic knife.
As invention further embodiment: the modification infusorial earth is prepared according to the following steps: diatomite is added
To mass fraction be 21% ethanol solution in stir evenly, merging temperature be 148 DEG C under conditions of heated at constant temperature handle 16min,
220 DEG C of continuation heated at constant temperature processing 26min are warming up to the heating rate of 3.8 DEG C/min, is cooled to room temperature, mass fraction is added
It is stirred evenly for 11% acetum, is dried under conditions of temperature is 145 DEG C, obtains modification infusorial earth.
As invention further embodiment: the modified micaceous mountain flour is prepared according to the following steps: by mica mountain flour
Being broken to partial size is 5 ~ 10 μm, and the nitric acid solution that mass fraction is 28% is added and stirs evenly, under conditions of magnetic field strength is 2.2T
Magnetization treatment 19min, pause 10min, magnetization treatment 15min under conditions of magnetic field strength is 1.1T are 160 DEG C in temperature
Under the conditions of be dried, obtain modified micaceous mountain flour.
As invention further embodiment: the adhesive aid is prepared according to the following steps: by the new of 30 parts by weight
Fresh purslane, the fresh needles of 15 parts by weight and 50 parts by weight, the water co-grinding that temperature is 50 DEG C are beaten, and merging temperature is 35
Constant-temperature enclosed fermentation 60h under conditions of DEG C, is added the cellulase of 0.7 parts by weight, and merging temperature is constant temperature under conditions of 30 DEG C
Sealed fermenting 160h continues mild fire infusion 30min after being boiled by slow fire, filtering takes filtrate, and being cooled to temperature is 58 DEG C, is added 2.5
The konjac polysaccharide of the carboxymethyl cellulose of parts by weight and 0.9 parts by weight, mild fire is heated to temperature and is 89 DEG C and is stirred continuously, cooling
To room temperature, adhesive aid is obtained.
As invention further embodiment: the hip treatment, in the item that temperature is 370 DEG C, pressure is 51MPa
Hip treatment 11min under part, hip treatment 8min under conditions of temperature is 220 DEG C, pressure is 94MPa, in temperature
Hip treatment 15min under conditions of degree is 500 DEG C, pressure is 37MPa, above-mentioned is a circulation, altogether circular treatment 2 times.
As invention further embodiment: a kind of high intensity of the preparation method preparation of high-intensity and high-tenacity anti-bacteria ceramic knife
High tenacity anti-bacteria ceramic knife.
Comparative example 1
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, the difference from embodiment 1 is that, by three oxygen of activity
Change two aluminium powders to be replaced with the common aluminium oxide powder last reign of a dynasty, other conditions are all the same.
Comparative example 2
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, the difference from embodiment 1 is that, by the modification diatom
Soil is replaced with ordinary silicon diatomaceous earth, and other conditions are all the same.
Comparative example 3
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, the difference from embodiment 1 is that, it will be described modified micaceous
Mountain flour is replaced with common mica mountain flour, and other conditions are all the same.
Comparative example 4
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, the difference from embodiment 1 is that, the adhesive aid
Fresh purslane and konjac polysaccharide are added without in preparation process, other conditions are all the same.
Comparative example 5
A kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, the difference from embodiment 1 is that, step (4) is without institute
The hip treatment stated, other conditions are all the same.
Comparative example 6
Patent publication No. is CN105236943B, patent name be a kind of Al2O3/Ti (C, N) composite ceramic tool material and its
Microwave sintering process.
Mechanical property is carried out to Stupalox prepared by embodiment 1 ~ 3 and comparative example 1 ~ 6 and acid-alkali-corrosive-resisting detects (mechanics
Performance is detected according to GB/T4740-1999, and resistance to acid and alkali is according to JC/T2138-2012 " fine ceramics acid-alkali-corrosive-resisting
Energy test method " detected), testing result such as table 1:
The mechanical property and acid-alkali-corrosive-resisting of 1 embodiment and comparative example Stupalox of table compare
As it can be seen from table 1 Stupalox made from embodiment has extremely strong mechanical property and acid-alkali-corrosive-resisting, and mechanical property
Comparative example can be significantly better than that with acid-alkali-corrosive-resisting.
The Stupalox prepared to embodiment 1 ~ 3 and comparative example 1 ~ 6 carries out anti-microbial property detection, by embodiment 1 ~ 3 and comparison
25 × 25mm test film is made in Stupalox prepared by example 1 ~ 6, and test film keeps sterile, is inoculated with certain density large intestine bar respectively
Bacterium, Penicillium notatum and staphylococcus aureus bacterium solution are cultivated 24 hours at 33 DEG C, Escherichia coli, Penicillium notatum after measurement culture
With the bacterium number of staphylococcus aureus, the bacterial population of 24 hours front and backs is contacted with experiment slice by bacterium, calculates the antibacterial to bacterium
Rate, testing result such as table 2:
The anti-microbial property of 2 embodiment and comparative example Stupalox of table compares
From table 2 it can be seen that Stupalox made from embodiment has extremely strong anti-microbial property, and anti-microbial property is substantially better than comparison
Example.
Claims (6)
1. a kind of preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife, which is characterized in that specifically includes the following steps:
(1) preparation of active aluminum oxide powder, it is 80 ~ 100nm that aluminum oxide powder, which is ground to partial size, is placed in temperature
Constant temperature steam handles 14 ~ 18min, is cooled to 100 ~ 110 DEG C with the rate of temperature fall of 8 ~ 9 DEG C/min under conditions of being 280 ~ 300 DEG C
Continue constant temperature steam and handle 22 ~ 26min, in the case where power is the power of 225 ~ 235W 8 ~ 10min of microwave treatment, power be 660 ~
15 ~ 17min of microwave treatment under conditions of 680W, 8 ~ 10min of pause, under conditions of power is 435 ~ 445W microwave treatment 19 ~
21min obtains active aluminum oxide powder；
(2) raw material, 52 ~ 58 parts of active aluminum oxide powder, 17 ~ 19 parts of modification infusorial earth, alumina silicate 3.7 are weighed by weight
~ 4.1 parts, 2.9 ~ 3.3 parts of lithium tantalate, 2.9 ~ 3.3 parts of CaCu 3 Ti 4 O, 8.9 ~ 9.7 parts of modified micaceous mountain flour, adhesive aid 28 ~ 32
Part；
(3) active aluminum oxide powder, modification infusorial earth and modified micaceous mountain flour are added in adhesive aid, mild fire heating
Be 88 ~ 92 DEG C to temperature and constantly stirred clockwise with the blender that revolving speed is 360 ~ 380r/min, power be 155 ~
22 ~ 26min of heat preservation ultrasonic treatment under conditions of 165W, frequency are 91 ~ 95kHz, merging temperature are permanent under conditions of being 0.3 ~ 0.9 DEG C
Warm 90 ~ 100min of chilling treatment, it is 79 ~ 83 DEG C and continuous with the blender that revolving speed is 570 ~ 590r/min that mild fire, which is heated to temperature,
It is stirred counterclockwise, alumina silicate, lithium tantalate and CaCu 3 Ti 4 O is added, it is counterclockwise with the blender that revolving speed is 710 ~ 750r/min
44 ~ 48min is stirred, mixture is obtained；
(4) mixture is poured into and carries out preforming compacting in grinding tool, carry out hip treatment, be 1140 ~ 1180 DEG C in temperature
Under conditions of Isothermal sinter handle 22 ~ 26min, 1420 ~ 1460 DEG C of continuation constant temperature are warming up to the heating rate of 8 ~ 10 DEG C/min
28 ~ 32min of sintering processes, be cooled to the rate of temperature fall of 5 ~ 6 DEG C/min 920 ~ 960 DEG C of continuation Isothermal sinters processing 10 ~
12min, demoulding, is cooled to room temperature, polishes, polishes, puts the first edge on a knife or a pair of scissors, obtain high-intensity and high-tenacity anti-bacteria ceramic knife.
2. the preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife according to claim 1, which is characterized in that described changes
Property diatomite, prepared according to the following steps: it is equal that diatomite is added to stirring in the ethanol solution that mass fraction is 19% ~ 21%
Even, heated at constant temperature handles 14 ~ 16min, with the heating rate of 3.2 ~ 3.8 DEG C/min under conditions of merging temperature is 142 ~ 148 DEG C
It is warming up to 210 ~ 220 DEG C of continuation heated at constant temperature and handles 22 ~ 26min, be cooled to room temperature, the vinegar that mass fraction is 10% ~ 11% is added
Acid solution stirs evenly, and is dried under conditions of temperature is 135 ~ 145 DEG C, obtains modification infusorial earth.
3. the preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife according to claim 1, which is characterized in that described changes
Property mica mountain flour, prepared according to the following steps: by micarex be crushed to partial size be 5 ~ 10 μm, be added mass fraction be 24% ~
28% nitric acid solution stirs evenly, under conditions of magnetic field strength is 2.1 ~ 2.2T magnetization treatment 17 ~ 19min, pause 8 ~
10min, 13 ~ 15min of magnetization treatment under conditions of magnetic field strength is 1.0 ~ 1.1T, under conditions of temperature is 150 ~ 160 DEG C
It is dried, obtains modified micaceous mountain flour.
4. the preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife according to claim 1, which is characterized in that described is viscous
Auxiliary agent is tied, is prepared according to the following steps: by the fresh purslane of 28 ~ 30 parts by weight, the fresh needles of 13 ~ 15 parts by weight and 48
~ 50 parts by weight, the water co-grinding that temperature is 46 ~ 50 DEG C are beaten, and merging temperature is constant-temperature enclosed fermentation under conditions of 33 ~ 35 DEG C
50 ~ 60h, be added 0.6 ~ 0.7 parts by weight cellulase, merging temperature be 28 ~ 30 DEG C under conditions of it is constant-temperature enclosed fermentation 140 ~
160h continues 25 ~ 30min of mild fire infusion after being boiled by slow fire, filtering takes filtrate, and being cooled to temperature is 54 ~ 58 DEG C, and addition 2.3 ~
The konjac polysaccharide of the carboxymethyl cellulose of 2.5 parts by weight and 0.8 ~ 0.9 parts by weight, mild fire be heated to temperature be 85 ~ 89 DEG C not
Disconnected stirring, is cooled to room temperature, obtains adhesive aid.
5. the preparation method of high-intensity and high-tenacity anti-bacteria ceramic knife according to claim 1, which is characterized in that the heat
Isostatic pressing, 9 ~ 11min of hip treatment under conditions of temperature is 360 ~ 370 DEG C, pressure is 47 ~ 51MPa, in temperature
6 ~ 8min of hip treatment under conditions of being 88 ~ 94MPa for 210 ~ 220 DEG C, pressure, temperature be 480 ~ 500 DEG C, pressure be
13 ~ 15min of hip treatment under conditions of 33 ~ 37MPa, above-mentioned is a circulation, altogether circular treatment 2 times.
6. the high intensity of the preparation method preparation of described in any item high-intensity and high-tenacity anti-bacteria ceramic knives according to claim 1 ~ 5
High tenacity anti-bacteria ceramic knife.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115972693A (en) * | 2022-12-06 | 2023-04-18 | 江苏伊斯达尔精密科技有限公司 | Tipping-resistant metal ceramic cutter and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115972693A (en) * | 2022-12-06 | 2023-04-18 | 江苏伊斯达尔精密科技有限公司 | Tipping-resistant metal ceramic cutter and preparation method thereof |
| CN115972693B (en) * | 2022-12-06 | 2024-01-05 | 江苏伊斯达尔精密科技有限公司 | Tipping-resistant metal ceramic cutter and preparation method thereof |
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Application publication date: 20190809 |