CN104987098A - Ceramic utensil strengthened through aluminum titanate fibers and preparing method of ceramic utensil - Google Patents

Abstract

The invention discloses a ceramic utensil strengthened through aluminum titanate fibers and a preparing method of the ceramic utensil. The ceramic utensil is made of, by weight, 16-28 parts of zircon sand, 10-15 parts of aluminum titanate fiber, 11-22 parts of granite, 14-26 parts of aventurine quartz, 12-23 parts of halloysite, 10-15 parts of pyrophyllite, 9-16 parts of gypsum, 5-10 parts of nutshell powder, 8-14 parts of iron mine milltailing, 3-5 parts of rosin pentaerythritol ester, 2-4 parts of ammonium citrate, 4-6 parts of calcium hypophosphite and 5-7 parts of nano-antibacterial powder. According to the ceramic utensil strengthened through the aluminum titanate fibers and the preparing method of the ceramic utensil, the obvious strengthening effect can be provided for the ceramic utensil by the added aluminum titanate fibers, the prepared ceramic utensil has very outstanding mechanical properties especially the breaking strength and the rupture modulus, the use amount of the zircon sand is greatly reduced, the production cost is reduced, meanwhile, the service life is prolonged, and significant economic benefits are achieved.

Description

Pottery that a kind of aluminium titanates fibre strengthens and preparation method thereof

Technical field

The present invention relates to pottery of a kind of aluminium titanates fibre enhancing and preparation method thereof, belong to stupalith field.

Background technology

Pottery is the general name of pottery and porcelain, the various goods being the material that main raw material is mixing, shaping through pulverizing and calcining is obtained with natural clay and various natural mineral.China is one of country applying pottery in the world the earliest, and pottery, because of features such as its quality are hard, fine and closely woven, forbid, high temperature resistant, glaze colours is abundant, is widely used in the fields such as feeder, decoration, science.Wherein pottery is used till today as daily utensil and because of its practicality and taste.Even to this day, due to the progress of science and technology, many materials that can replace porcelain utensils are there is, as stainless steel, plastics etc., compared with the vessel made with these materials, traditional ceramics vessel also also exist the low shortcoming of physical strength, occur fracture phenomena in use procedure, also there is the shortcoming of antibacterial bacteriostatic performance difference in pottery in the market in addition, easily grows a large amount of bacterium.Therefore, a kind of brand-new pottery of exploitation is badly in need of, to improve the performance of pottery.

Summary of the invention

The object of the invention is to for the deficiencies in the prior art, pottery providing a kind of aluminium titanates fibre to strengthen and preparation method thereof, improve the physical strength of pottery.

For achieving the above object, the technical solution used in the present invention is as follows:

The pottery that aluminium titanates fibre strengthens, is made up of the raw material of following weight part: zircon sand 16-28, aluminium titanates fibre 10-15, grouan 11-22, Dongling stone 14-26, halloysite 12-23, agalmatolite 10-15, gypsum 9-16, nutshell powder 5-10, adopting iron ore tailings 8-14, pentalyn 3-5, ammonium citrate 2-4, calcium propionate 4-6, nano-antibacterial powder 5-7;

The preparation method of described nano-antibacterial powder is as follows: (1) gets the raw material of following weight part: bamboo charcoal powder 5-10, zeolite molecular sieve 4-8, tetrabutyl titanate 15-20, dehydrated alcohol 60-80, distilled water 3-5, Glacial acetic acid 10-15, Silver Nitrate 8-12, zinc nitrate 5-10; (2) tetrabutyl titanate is mixed with the dehydrated alcohol accounting for alcohol total amount 50-60%, magnetic agitation 20-30min, obtain mixed liquor A; (3) distilled water, Glacial acetic acid and remaining dehydrated alcohol are mixed, magnetic agitation 15-20min, obtains mixed liquid B; (4) under magnetic stirring, mixed liquid B is dropwise joined in mixed liquor A, after dripping, add bamboo charcoal powder and zeolite molecular sieve, ultrasonic agitation 0.5-1h, at room temperature leave standstill 24-48h again, by the gel dry 12-18h at 65-75 DEG C obtained, grind into powder; (5) above-mentioned obtained powder is put into retort furnace, at 480-560 DEG C, thermal treatment 1-2h, cools to normal temperature with the furnace, pulverizes, sieves and obtain required nano-antibacterial powder.

A preparation method for the pottery that aluminium titanates fibre strengthens, comprises the following steps:

(1) get Dongling stone, halloysite, agalmatolite mix, pulverize, cross 80-120 mesh sieve, add water and make the slurries of 55-60%, wet ball grinding 1.5-2h under the rotating speed of 1000-1500r/min, spraying dry, 740-820 DEG C of calcining 15-25min, continue to be warming up to 1210-1270 DEG C, take out and shrend after calcining 1-2h, dry, pulverize, cross 100-150 mesh sieve, stand-by;

(2) get zircon sand, grouan, adopting iron ore tailings mix, pulverize, cross 100-150 mesh sieve, add appropriate water making beating and make the slurries that concentration is 50-55%, then slurries PH to 5-6 is regulated with 20% hydrochloric acid soln, microwave treatment 20-30min, then regulate slurries PH to 8.5-9.5 with 30% sodium hydroxide solution, ultrasonication 10-15min, filter, filter residue is washed with distilled water to neutrality, dries, stand-by;

(3) powder obtained to above-mentioned steps (1) and step (2) and surplus stock are added in mixer be uniformly mixed 5-8min, then the solid content adding compound weight 3-5% is the water glass mixing 20-30min of 30%, leaves standstill 10-15h;

(4) powder that step (3) is obtained is delivered to forming machine compression moulding under 80-90MPa, then the adobe suppressed is delivered in dry kiln and be dried to water content lower than 3%;

(5) leaching glaze is carried out to the dry body that step (4) obtains, then carries out atmosphere sintering process: first under the Ar atmosphere of 1-2MPa with the ramp of 5-8 DEG C/min to 760-840 DEG C, insulation 0.5-1h, then at the N of 3-4MPa ₂under atmosphere with the ramp of 4-7 DEG C/min to 1230-1290 DEG C, insulation 2-3h, then at the H of 2-3MPa ₂810-870 DEG C is cooled to the speed of 3-6 DEG C/min under atmosphere, insulation 1-2h, 540-580 DEG C is cooled to the speed of 2-4 DEG C/min again under the Ar atmosphere of 3-4MPa, insulation 0.5-1h, last under vacuum conditions with the ramp of 6-9 DEG C/min to 1160-1220 DEG C, insulation 1.5-2.5h, cool to normal temperature with the furnace, packaging gets product.

Above-mentioned nano-antibacterial powder is with bamboo charcoal powder, zeolite molecular sieve for carrier, with Ag ⁺, Zn ²⁺for the modified Nano TiO that doping particle prepares ₂powder, safety and environmental protection, nontoxic, tasteless, nonirritant, not only there is excellent broad spectrum antibacterial performance, to comprise bacterium, fungi, mycoplasma multiple pathogens have and well suppress or killing action, sterilizing rate reaches more than 98%, has the effects such as deodorizing, fresh-keeping, Adsorption of Heavy Metal Ions simultaneously, also there is good anti-ultraviolet aging and thermotolerance, do not decompose under high temperature and intensive ultraviolet, non-volatile, nondiscoloration, to never degenerate.

Beneficial effect of the present invention:

The aluminium titanates fibre added in raw material of the present invention can provide significant enhancement to pottery, obtained pottery has very outstanding mechanical property, especially strength at break and the modulus of rupture, greatly reduce the consumption of zircon sand, extend work-ing life while reducing production cost, there is important economic benefit.

Embodiment

The pottery that aluminium titanates fibre strengthens, is made up of the raw material of following weight (kg): zircon sand 24, aluminium titanates fibre 12, grouan 17, Dongling stone 23, halloysite 19, agalmatolite 13, gypsum 14, nutshell powder 7, adopting iron ore tailings 12, pentalyn 4, ammonium citrate 3, calcium propionate 5, nano-antibacterial powder 6;

The preparation method of described nano-antibacterial powder is as follows: (1) gets the raw material of following weight (kg): bamboo charcoal powder 7, zeolite molecular sieve 5, tetrabutyl titanate 16, dehydrated alcohol 65, distilled water 3, Glacial acetic acid 10, Silver Nitrate 9, zinc nitrate 6; (2) tetrabutyl titanate is mixed with the dehydrated alcohol accounting for alcohol total amount 52%, magnetic agitation 20min, obtain mixed liquor A; (3) distilled water, Glacial acetic acid and remaining dehydrated alcohol are mixed, magnetic agitation 15min, obtains mixed liquid B; (4) under magnetic stirring, mixed liquid B is dropwise joined in mixed liquor A, add bamboo charcoal powder and zeolite molecular sieve after dripping, ultrasonic agitation 0.5h, more at room temperature leave standstill 36h, by the gel dry 18h at 65 DEG C obtained, grind into powder; (5) above-mentioned obtained powder is put into retort furnace, at 520 DEG C, thermal treatment 1.5h, cools to normal temperature with the furnace, pulverizes, sieves and obtain required nano-antibacterial powder.

A preparation method for the pottery that aluminium titanates fibre strengthens, comprises the following steps:

(1) get Dongling stone, halloysite, agalmatolite mix, pulverize, cross 100 mesh sieves, add water make 58% slurries, wet ball grinding 1.5h under the rotating speed of 1500r/min, spraying dry, 780 DEG C of calcining 20min, continue to be warming up to 1250 DEG C, take out and shrend after calcining 1.5h, dry, pulverize, cross 120 mesh sieves, stand-by;

(2) get zircon sand, grouan, adopting iron ore tailings mix, pulverize, cross 100 mesh sieves, add appropriate water making beating and make the slurries that concentration is 53%, then slurries PH to 5.5 is regulated with 20% hydrochloric acid soln, microwave treatment 25min, then regulate slurries PH to 9 with 30% sodium hydroxide solution, ultrasonication 15min, filter, filter residue is washed with distilled water to neutrality, dries, stand-by;

(3) powder obtained to above-mentioned steps (1) and step (2) and surplus stock are added in mixer be uniformly mixed 7min, then the solid content adding compound weight 4.5% is the water glass mixing 25min of 30%, leaves standstill 12h;

(4) powder that step (3) is obtained is delivered to forming machine compression moulding under 85MPa, then the adobe suppressed is delivered in dry kiln and be dried to water content lower than 3%;

(5) leaching glaze is carried out to the dry body that step (4) obtains, then carries out atmosphere sintering process: first under the Ar atmosphere of 2MPa with the ramp to 790 DEG C of 6 DEG C/min, insulation 0.5h, then at the N of 3MPa ₂with the ramp to 1270 DEG C of 5 DEG C/min under atmosphere, insulation 3h, then at the H of 2.5MPa ₂be cooled to 850 DEG C with the speed of 4 DEG C/min under atmosphere, insulation 1.5h, then be cooled to 560 DEG C with the speed of 3 DEG C/min under the Ar atmosphere of 3MPa, insulation 0.5h, finally under vacuum conditions with the ramp to 1180 DEG C of 7 DEG C/min, insulation 2h, cool to normal temperature with the furnace, packaging gets product.

The pottery salient features that above-described embodiment is produced is as shown in the table:

Project	Unit	Detected result
			Strength at break	N	2457
The modulus of rupture	MPa	38
			Sterilizing rate	％	98.2

Claims (2)

1. the pottery of an aluminium titanates fibre enhancing, it is characterized in that, be made up of the raw material of following weight part: zircon sand 16-28, aluminium titanates fibre 10-15, grouan 11-22, Dongling stone 14-26, halloysite 12-23, agalmatolite 10-15, gypsum 9-16, nutshell powder 5-10, adopting iron ore tailings 8-14, pentalyn 3-5, ammonium citrate 2-4, calcium propionate 4-6, nano-antibacterial powder 5-7;

The preparation method of described nano-antibacterial powder is as follows: (1) gets the raw material of following weight part: bamboo charcoal powder 5-10, zeolite molecular sieve 4-8, tetrabutyl titanate 15-20, dehydrated alcohol 60-80, distilled water 3-5, Glacial acetic acid 10-15, Silver Nitrate 8-12, zinc nitrate 5-10; (2) tetrabutyl titanate is mixed with the dehydrated alcohol accounting for alcohol total amount 50-60%, magnetic agitation 20-30min, obtain mixed liquor A; (3) distilled water, Glacial acetic acid and remaining dehydrated alcohol are mixed, magnetic agitation 15-20min, obtains mixed liquid B; (4) under magnetic stirring, mixed liquid B is dropwise joined in mixed liquor A, after dripping, add bamboo charcoal powder and zeolite molecular sieve, ultrasonic agitation 0.5-1h, at room temperature leave standstill 24-48h again, by the gel dry 12-18h at 65-75 DEG C obtained, grind into powder; (5) above-mentioned obtained powder is put into retort furnace, at 480-560 DEG C, thermal treatment 1-2h, cools to normal temperature with the furnace, pulverizes, sieves and obtain required nano-antibacterial powder.

2. a preparation method for the pottery of aluminium titanates fibre enhancing as claimed in claim 1, is characterized in that comprising the following steps:

(1) get Dongling stone, halloysite, agalmatolite mix, pulverize, cross 80-120 mesh sieve, add water and make the slurries of 55-60%, wet ball grinding 1.5-2h under the rotating speed of 1000-1500r/min, spraying dry, 740-820 DEG C of calcining 15-25min, continue to be warming up to 1210-1270 DEG C, take out and shrend after calcining 1-2h, dry, pulverize, cross 100-150 mesh sieve, stand-by;

(2) get zircon sand, grouan, adopting iron ore tailings mix, pulverize, cross 100-150 mesh sieve, add appropriate water making beating and make the slurries that concentration is 50-55%, then slurries PH to 5-6 is regulated with 20% hydrochloric acid soln, microwave treatment 20-30min, then regulate slurries PH to 8.5-9.5 with 30% sodium hydroxide solution, ultrasonication 10-15min, filter, filter residue is washed with distilled water to neutrality, dries, stand-by;

(3) powder obtained to above-mentioned steps (1) and step (2) and surplus stock are added in mixer and be uniformly mixed 5-8min, the solid content then adding compound weight 3-5% is the water glass mixing 20-30min of 30%, standing 10-15h;

(4) powder that step (3) is obtained is delivered to forming machine compression moulding under 80-90MPa, then the adobe suppressed is delivered in dry kiln and be dried to water content lower than 3%;

(5) leaching glaze is carried out to the dry body that step (4) obtains, then carries out atmosphere sintering process: first under the Ar atmosphere of 1-2MPa with the ramp of 5-8 DEG C/min to 760-840 DEG C, insulation 0.5-1h, then at the N of 3-4MPa ₂under atmosphere with the ramp of 4-7 DEG C/min to 1230-1290 DEG C, insulation 2-3h, then at the H of 2-3MPa ₂810-870 DEG C is cooled to the speed of 3-6 DEG C/min under atmosphere, insulation 1-2h, 540-580 DEG C is cooled to the speed of 2-4 DEG C/min again under the Ar atmosphere of 3-4MPa, insulation 0.5-1h, last under vacuum conditions with the ramp of 6-9 DEG C/min to 1160-1220 DEG C, insulation 1.5-2.5h, cool to normal temperature with the furnace, packaging gets product.