CN108658457A - A kind of bio-soluble super glass wool and preparation method thereof - Google Patents

A kind of bio-soluble super glass wool and preparation method thereof Download PDF

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Publication number
CN108658457A
CN108658457A CN201710196215.9A CN201710196215A CN108658457A CN 108658457 A CN108658457 A CN 108658457A CN 201710196215 A CN201710196215 A CN 201710196215A CN 108658457 A CN108658457 A CN 108658457A
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China
Prior art keywords
content
bio
parts
glass
temperature
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CN201710196215.9A
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Chinese (zh)
Inventor
陈舟
祝坤
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Chongqing Ma Valley Fiber New Materials Co Ltd
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Chongqing Ma Valley Fiber New Materials Co Ltd
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Priority to CN201710196215.9A priority Critical patent/CN108658457A/en
Publication of CN108658457A publication Critical patent/CN108658457A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/0203—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices
    • C03B37/0213—Cooling non-optical fibres drawn or extruded from bushings, nozzles or orifices by forced gas cooling, i.e. blowing or suction
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/002—Use of waste materials, e.g. slags
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Glass Compositions (AREA)

Abstract

The invention discloses a kind of bio-soluble super glass wool and preparation method thereof, the chemical composition of the bio-soluble super glass wool is according to the mass fraction：SiO2Content is 60~68 parts, Al2O3Content is 0~3 part, and the sum of CaO and content of MgO are 6~12 parts, Na2O and K2The sum of O content is 15~20 parts, B2O34 4.9 parts of content, 35 parts of BaO contents, Fe2O3、SO3、ZrO2、CeO2The sum of oxide content is not more than 4 parts, wherein CeO2Content is no less than 0.5 part.With good bio-soluble and thermal and insulating performance：The glass fibre cotton fibre diameter is thin, and thermal coefficient is low (room temperature thermal coefficient can be down to 0.03W/ (mK)), and heat insulation effect is good.Once the glass fibre cotton-wadded quilt organism sucks respiratory system, even into lung, half-life period is less than 40 days, can be dissolved quickly by organism lung liquid, will not cause inflammation.

Description

A kind of bio-soluble super glass wool and preparation method thereof
Technical field
The present invention relates to a kind of mineral wool and preparation method thereof, more particularly, to a kind of bio-soluble super glass wool and Preparation method.
Background technology
Fire prevention porous, inorganic fiber thermal insulation heat-barrier material at present, such as mineral wool, mineral wool and rock wool, have been widely used To heat preservation energy-savings fields such as heat pipe, household electrical appliances, refrigeration, building and industry.Traditional inorganic fibers belong to SiO2、Al2O3It is silicon Silicate fiber, it has excellent heat-proof quality, chemical stability and corrosion resistance.But the diameter of fiber is thin, is producing and is making With easily being sucked in lung by human respiratory in the process, can not be completely dissolved by long-time, therefore to health structure At potential threat.International cancer research institution (IARC) has carried out healthy classification in 2001 to various inorfils, will Adiabatic class mineral wool, mineral wool and continuous glass fibre reclassify, and have been raised to and " have been not classified as carcinogenic from " being potentially carcinogenic object " Object ".But the traditional glass cotton of specific use, as filtering mineral wool and battery separator cotton remain as " being potentially carcinogenic object " class Not.
European Union is established on the basis of IARC with average fibre diameter and fibre composition (European Union index KNB=(Na2O+ K2O+CaO+MgO+BaO) × 100, oxide content is wt% in formula) be standard biosoluble index, to inorfil Tightened up regulation is carried out.Inorfil is divided into 0 by European Union in its " dangerous material guide (Directive97/69/EC) ", 1,2,3 four class.0 class is to be not classified as carcinogenic substance, and average fibre diameter is more than 6 μm, such as continuous glass fibre；1 class is carcinogenic substance, Such as asbestos material；2 classes are to be likely to carcinogenic substance, and average fibre diameter is not more than 6 μm, and European Union's KNB indexes are less than 18；3 classes are can Energy carcinogenic substance, average fibre diameter are not more than 6 μm, and European Union's KNB indexes are more than 18.
With the development of the energy saving cause in the world, in industrial, building and field of household appliances to heat preservation in China's long-term plan policy Power conservation requirement has further raising.The top periodicals of world SCI in 2015《energy》" the Preparation published and characterization of vacuum insulation panels with super- In a stratifiedglassfibercorematerial " texts, disclose that microglass fiber diameter is thinner, and thermal coefficient is got over Low, heat preservation insulation effect is better, and the glass wool product heat-insulating property of 6 μm of the glass wool product diameter group of 3 μm of diameter doubles. But according to European Union Directive97/69/EC, mineral wool of the fibre diameter less than 6 μm, which belongs to, is potentially carcinogenic object.
So far, people are to inorfils cottons pair such as mineral short fibre (mine/rock wool) and staple glass fibres (mineral wool) The experimental data of health evaluation is based primarily upon zoopery and pair has the health statistics of Long Term Contact crowd with mineral fibres Analysis.Although influence and pathogenesis of the bioactivity of current fiber to human body are come to a conclusion not yet, number is largely tested According to showing fiber retention in the time of the organism lung longer risk that will significantly increase lesion.If fiber can be in the short time Pulmonary lesion cannot be induced by inside dissolving in Human Lung liquid, be thus born biosoluble fibers.Therefore, German political affairs The mineral fibres criteria for classification of oneself has been formulated at mansion with reference to European Union, and new bio-soluble index KI indexes were proposed in 2000： KI indexes=[Na2O+K2O+CaO+MgO+BaO+B2O3]-2×(Al2O3)] × 100 (oxide content in equation is Wt%).For being biosoluble fibers by one of following 3 Bioexperiment qualification：
(1) KI indexes are more than 40；
(2) lung's injection results from residue tests meets Half-life of the fiber in experimental mouse lung and is less than 40 days；
(3) animal intraperitoneal injection is experiments have shown that be non-carcinogenic object.
Therefore European Union is also judged as 0 class for the mineral fibres that can quickly dissolve, be broken in lung liquid.
Simple glass cotton thermal insulation material avarage fiber diameter is 6 μm or more on domestic market, is not easy to suck organism In lung.But with the ultra-fine continuous development at fine technology, ultra-fine fibre glass cotton of the avarage fiber diameter less than 6 μm and fento Dimension mineral wool constantly floods the market.This kind of product belongs to 2 class of European Union " being likely to carcinogenic substance " and 3 classes " being potentially carcinogenic object " substantially Classification causes potential life security to threaten producers and user of service.
Invention content
The purpose of the present invention overcomes the shortcomings of the prior art, provide a kind of bio-soluble super glass wool and its Preparation method, the bio-soluble super glass wool have good bio-soluble and thermal and insulating performance.
To achieve the purpose of the present invention the technical solution adopted is that：A kind of bio-soluble super glass wool is provided, It is characterized in that its chemical composition is according to the mass fraction：SiO2Content is 60~68 parts, Al2O3Content is 0~3 part, CaO and MgO The sum of content is 6~12 parts, Na2O and K2The sum of O content is 15~20 parts, B2O34-4.9 parts of content, 3-5 parts of BaO contents, Fe2O3、SO3、ZrO2、CeO2The sum of oxide content is not more than 4 parts, wherein CeO2Content is no less than 0.5 part.
Further, the raw material for producing above-mentioned glass fibre cotton are 365-380kg quartz sands, 10-30kg water, 150- 170kg soda ash, 75-86kg boraxs, 8-26kg calcites, 80-101kg dolomites, 35-55kg feldspars and 125-140kg are broken Glass.
Further, the distribution of fiber diameters section of the glass fibre cotton is 0~10 μm, and fiber avarage fiber diameter is small In 6 μm.
Further, the fiber length distribution section of the glass fibre cotton is 0~500mm, and average fiber length is less than 200mm。
The invention also discloses the preparation methods of above-mentioned bio-soluble ultra-fine fibre glass cotton, it is characterised in that including under The step of stating sequence：
(1) quartz sand and water are mixed in a certain ratio in mixing machine, add soda ash and borax both lightweight materials, most After be sequentially added into calcite, dolomite and feldspar raw material and cullet obtain mixture, be stirred 1~5min of mixing, Rotating speed is 20~40rad/min；
(2) in horse-shoe flame furnace or all-electric melting kiln and material path, by mixture melting, the clarification and homogenization of above-mentioned steps (1) At liquid glass, melting temperature is 1300 DEG C~1450 DEG C, and clarification and homogenization temperature is 1100 DEG C~1250 DEG C；
(3) the high-speed rotating centrifuge high speed of above-mentioned liquid glass importing is rotary-fiberized, stock temperature is flowed in liquid glass root Degree is 1030 DEG C~1100 DEG C, and centrifuge temperature is 950 DEG C~1100 DEG C, and rotating speed is 2500rad/min~4000rad/min；
(4) liquid glass that step high temperature air-flow stretches above-mentioned high-speed fibre is used to obtain stretching fiber, top stream temperature It it is 1200 DEG C~1500 DEG C, bottom airflow temperature is 1000 DEG C~1200 DEG C, and air flow rate is 30~60m3/min；
(5) it uses compressed air to cool down above-mentioned stretching fiber, obtains bio-soluble ultra-fine fibre glass cotton, compressed air temperature It it is 30 DEG C~80 DEG C, air flow rate is 2~5m3/min。
Application effect：Compared with prior art, the present invention haing the following advantages：
(1) the glass fibre cotton fibre diameter is thin, and thermal coefficient is low (room temperature thermal coefficient can be down to 0.03W/ (mK)), protects Temp effect is good.
(2) glass fibre cotton by organism once suck respiratory system, and even into lung, half-life period is less than 40 It, can be dissolved quickly by organism lung liquid, will not cause inflammation.
Description of the drawings
Fig. 1 be the present invention a kind of bio-soluble super glass wool scanning electron microscope (SEM) under microsctructural photograph and Distribution of fiber diameters.
Fig. 2 is that a kind of bio-soluble super glass wool of the present invention dissolves the SEM photograph of different cycles in lung liquid, In (a) be the fiber just prepared；(b) it is to be dissolved 1 day in lung liquid；(c) it is to be dissolved 2 days in lung liquid；(d) it is molten in lung liquid Solution 3 days.
Specific implementation mode
With reference to specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate the present invention Rather than limit the scope of the invention, after having read the present invention, various equivalences of the those skilled in the art to the present invention It is as defined in the appended claims that the modification of form falls within the application.
Embodiment
372kg quartz sands and 15kg water are mixed in mixing machine, 161kg soda ash and 82kg boraxs is added, finally presses 16kg calcites, 93kg dolomites and 40kg feldspars and 136kg cullet are added in sequence, are stirred 4min, rotating speed is 30rad/min；By the melting of above-mentioned mixture, clarification and homogenization at liquid glass, melting temperature in conventional horse-shoe flame furnace It it is 1360 DEG C, clarification and homogenization temperature is 1100 DEG C~1200 DEG C；Above-mentioned liquid glass is imported in high-speed rotating centrifuge High speed centrifugation fibrosis, it is 1050 DEG C that stock temperature is flowed in liquid glass root, and centrifuge mean temperature is 980 DEG C, and rotating speed is 3000rad/min；The liquid glass of above-mentioned high-speed fibre is stretched using step high temperature air-flow, top stream temperature is 1400 DEG C, bottom airflow temperature is 1100 DEG C, air flow rate 42m3/min；Above-mentioned stretching fiber is cooled down using compressed air, is obtained Bio-soluble ultra-fine fibre glass cotton, compressed air temperature are 50 DEG C, air flow rate 3m3/min。
The single specific implementation mode of the present invention is above are only, but the design concept of the present invention is not limited thereto, all profits The change for carrying out unsubstantiality to the present invention with this design, should all belong to the behavior for invading the scope of protection of the invention.In every case it is Without departing from the content of technical solution of the present invention, according to the technical essence of the invention to any type of letter made by above example Single modification, equivalent variations and remodeling, still fall within the protection domain of technical solution of the present invention.

Claims (5)

1. a kind of bio-soluble ultra-fine fibre glass cotton, it is characterised in that its chemical composition is according to the mass fraction：SiO2Content It is 60~68 parts, Al2O3Content is 0~3 part, and the sum of CaO and content of MgO are 6~12 parts, Na2O and K2The sum of O content be 15~ 20 parts, B2O34-4.9 parts of content, 3-5 parts of BaO contents, Fe2O3、SO3、ZrO2、CeO2The sum of oxide content is not more than 4 parts, Middle CeO2Content is no less than 0.5 part.
2. bio-soluble ultra-fine fibre glass cotton according to claim 1, which is characterized in that produce above-mentioned glass fibre The raw material of cotton be 365-380kg quartz sands, 10-30kg water, 150-170kg soda ash, 75-86kg boraxs, 8-26kg calcites, 80-101kg dolomites, 35-55kg feldspars and 125-140kg cullet.
3. bio-soluble ultra-fine fibre glass cotton according to claim 1 or 2, it is characterised in that the glass fibre cotton Distribution of fiber diameters section be 0~10 μm, fiber avarage fiber diameter be less than 6 μm.
4. bio-soluble ultra-fine fibre glass cotton according to claim 1 or 2, it is characterised in that the glass fibre cotton Fiber length distribution section be 0~500mm, average fiber length be less than 200mm.
5. according to the preparation method of any bio-soluble ultra-fine fibre glass cotton in claim 1-4, it is characterised in that Include the steps that following sequences：
(1) quartz sand and water are mixed in a certain ratio in mixing machine, add soda ash and borax both lightweight materials, most After be sequentially added into calcite, dolomite and feldspar raw material and cullet obtain mixture, be stirred 1~5min of mixing, Rotating speed is 20~40rad/min；
(2) in horse-shoe flame furnace or all-electric melting kiln and material path, by mixture melting, the clarification and homogenization of above-mentioned steps (1) At liquid glass, melting temperature is 1300 DEG C~1450 DEG C, and clarification and homogenization temperature is 1100 DEG C~1250 DEG C；
(3) the high-speed rotating centrifuge high speed of above-mentioned liquid glass importing is rotary-fiberized, stock temperature is flowed in liquid glass root Degree is 1030 DEG C~1100 DEG C, and centrifuge temperature is 950 DEG C~1100 DEG C, and rotating speed is 2500rad/min~4000rad/min；
(4) liquid glass that step high temperature air-flow stretches above-mentioned high-speed fibre is used to obtain stretching fiber, top stream temperature It it is 1200 DEG C~1500 DEG C, bottom airflow temperature is 1000 DEG C~1200 DEG C, and air flow rate is 30~60m3/min；
(5) it uses compressed air to cool down above-mentioned stretching fiber, obtains bio-soluble ultra-fine fibre glass cotton, compressed air temperature It it is 30 DEG C~80 DEG C, air flow rate is 2~5m3/min。
CN201710196215.9A 2017-03-29 2017-03-29 A kind of bio-soluble super glass wool and preparation method thereof Pending CN108658457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710196215.9A CN108658457A (en) 2017-03-29 2017-03-29 A kind of bio-soluble super glass wool and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710196215.9A CN108658457A (en) 2017-03-29 2017-03-29 A kind of bio-soluble super glass wool and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108658457A true CN108658457A (en) 2018-10-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710196215.9A Pending CN108658457A (en) 2017-03-29 2017-03-29 A kind of bio-soluble super glass wool and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108658457A (en)

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