CN105800996B - A kind of method that utilization waste wool keratin prepares cement blowing agent - Google Patents

A kind of method that utilization waste wool keratin prepares cement blowing agent Download PDF

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Publication number
CN105800996B
CN105800996B CN201610170997.4A CN201610170997A CN105800996B CN 105800996 B CN105800996 B CN 105800996B CN 201610170997 A CN201610170997 A CN 201610170997A CN 105800996 B CN105800996 B CN 105800996B
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sodium
wool
blowing agent
wool keratin
cement blowing
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CN105800996A (en
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栗蕾
苏小舟
张锐
张俊峰
谢晓鹏
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Zhengzhou University of Aeronautics
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Zhengzhou University of Aeronautics
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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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • 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
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/12Nitrogen containing compounds organic derivatives of hydrazine
    • C04B24/14Peptides; Proteins; Derivatives thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The invention discloses a kind of method that utilization waste wool keratin prepares cement blowing agent.Waste wool keratin is added first and dried after carrying out washing by soaking, washing in the sink equipped with cleaning solution;Wool keratin after drying is shredded and is fitted into container, and sequentially adds water, sodium hydrogensulfite and is soaked, gained mixed solution carries out heating water bath after immersion, then adds Ca (OH)2It is hydrolyzed, is filtered after hydrolysis, filtering resulting solution regulation pH value obtains foaming agent mother liquor;Waste wool keratin cement blowing agent working solution is finally prepared into foaming agent mother liquor, α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate, sodium dehydroacetate and water.Cement blowing agent prepared by the present invention is entirely a kind of green product, and environment is not polluted in production process, with significant economic value and social benefit.

Description

A kind of method that utilization waste wool keratin prepares cement blowing agent
Technical field
The present invention relates to chemical industry, building material technical field, and in particular to one kind prepares water using waste wool keratin The method of cement foaming agent, that is, provide a kind of preparation method of environment-friendly type animal protein cement blowing agent.
Background technology
In recent years, foam concrete because its there is good thermal and insulating performance, it is preferable engineering strength, controllable anti- Outlet capacity and lighter weight, have obtained increasingly being widely applied in construction material, construction of environmental protection field.Want prepare it is high-quality Foam concrete measuring, meeting various different requirements be unable to do without high-quality cement blowing agent.At present, it is domestic cement foamed Agent market is also immature, and the technological element of a product is relatively low, and research and development ability is lower.Plant type foaming agent, synthesis class foaming agent and Animal protein type foaming agent is used, and most products are also in low side, while the feature of environmental protection and safety in utilization are also present Certain hidden danger.
The content of the invention
The technical problem to be solved in the present invention is:Offer is a kind of to be available for the new and effective ring that civil engineering work field is used Guarantor's type cement blowing agent, that is, provide a kind of method that utilization waste wool keratin prepares cement blowing agent(A kind of environment-friendly type is moved The preparation method of thing albumen cement blowing agent).Cement blowing agent prepared by the present invention, which can be used for preparing, meets the low of construction reference Density and ultra-low-density foam concrete, and used all raw materials and preparation process are prepared all without generation environment dirt Dye, in the absence of potentiality potential safety hazard, and farthest realizes refuse reclamation.Therefore, the present invention has significant Social benefit and economic benefit.
In order to solve the above problems, the technical scheme that the present invention takes is:
The present invention provides a kind of method that utilization waste wool keratin prepares cement blowing agent, and the preparation method includes Following steps:
A, waste wool keratin pretreatment(Waste wool pretreatment main purpose be:Remove impurities of wool And lanolin):
Water is added first into sink as cleaning solution, cetyl benzenesulfonic acid sodium is then added, is adjusted to cetyl The mass percentage concentration of benzene sulfonic acid sodium salt is 1~3%, obtains the cetyl benzenesulfonic acid sodium aqueous solution, is subsequently added into sodium carbonate stirring equal Even, the addition of sodium carbonate accounts for the 0.2~0.4% of cetyl benzenesulfonic acid sodium aqueous solution weight;Waste wool angle is added after stirring evenly Albumen is wool(Cleaning solution just submerges waste wool keratin and is advisable), cleaning solution submergence waste wool keratin, Ran Hou Temperature is 40~55 DEG C, rotating speed is continuously to wash wool 60~120 minutes under conditions of 15~60 revs/min;Washing terminates Afterwards, then with clear water wash 2~3 times, wool reclaimed water is drained after washing and wool is dried;
B, wool keratin hydrolyzate(That is foaming agent mother liquor)Preparation:
The pretreated wool keratins of step a are shredded, weighing wool keratin after shredding is fitted into container, added first Enter water, the mass ratio of the wool keratin and both water addition is 1:15~30;Then sodium hydrogensulfite, the Asia are added Niter cake is 1 with the mass ratio that both wool keratins are added:10~25, persistently soak 12~20h;Then institute after soaking Obtain mixed solution and 1~3h is placed in 50~60 DEG C of water-bath, bath temperature is then risen to 90~100 DEG C, add Ca (OH)2, the Ca (OH)2It is 20~25 with the mass ratio that wool keratin is added therebetween:50, held under this temperature conditions 5~8h of continuous hydrolysis, gained hydrating solution is filtered, adjusts the pH value of resulting solution to 7~8 after filtering, obtains wool Keratin hydrolysis liquid is foaming agent mother liquor;
C, cement blowing agent preparation:
Represented with weight/mass percentage composition, the preparation composition of the waste wool keratin cement blowing agent is:Foaming agent is female Liquid 25~30%, α-sodium olefin sulfonate 1.0~2.5%, gelatin 0.05~0.15%, polyvinyl alcohol 0.01~0.05%, carboxymethyl are fine The plain sodium 0.03~0.05% of dimension, sodium benzoate 0.1~0.4%, sodium dehydroacetate 0.1~0.3%, surplus is water;
D, cement blowing agent preparation:
The proportioning composition for being first according to cement blowing agent described in step c weighs various raw materials, by the foaming agent mother liquor weighed Add in container, then sequentially add α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate and take off Acetate hydrogen sodium, then adds the water weighed and is diluted;Magnetic stirring apparatus is used after dilution in 300~600 turns/min speed Persistently stir 8~12 hours down, prepare waste wool keratin cement blowing agent working solution.
The method that cement blowing agent is prepared according to above-mentioned utilization waste wool keratin, waste wool described in step a Keratin comes from the processing waste wool of wool textile industry or the waste wool of leather production industry.
The method that cement blowing agent is prepared according to above-mentioned utilization waste wool keratin, wool angle egg described in step b The mass ratio of both Bai Yushui additions is 1:20.
The method that cement blowing agent is prepared according to above-mentioned utilization waste wool keratin, by water-bath temperature described in step b Degree rises to 100 DEG C.
The waste wool keratin used in the present invention, the processing waste material being mainly derived from leather processing factory and wool spinning and Rejectable waste;The sodium carbonate of use is a kind of tasteless powder of white, and it can be with the pH value of control system, while can be to wool Fat carries out saponification;The sodium hydrogensulfite of use is a kind of white crystalline powder, and its main function to wool keratin is to beat Disulfide bond in angle of release albumen, so that keratolysis strengthens;The calcium hydroxide of use is a kind of white powder, with suitable In oxidisability, it can gradually hydrolyze wool keratin, and its oxidation is moderate, the keratin solution molecule of generation Amount will not be too small;α-sodium olefin sulfonate of use is a kind of white solid, is a kind of surfactant, is a kind of preferably foaming Reagent;The polyvinyl alcohol of use is a kind of organic compound of white plates, is a kind of high molecular weight water soluble polymer, Ke Yiqi To the effect of foam stabilizing;The sodium carboxymethylcellulose of use is a kind of thickener, is also a kind of foam stabilizer;The gelatin used is angle egg The hydrolysate of albumin, with foaminess, primarily serves the effect of foam stabilizing in foaming agent;The sodium benzoate used is one kind Conventional preventing microorganism reagent and preservative, play a part of suppressing bacterium in foaming agent;The sodium dehydroacetate used is one White crystalline powder is planted, is a kind of broad spectrum activity bacteriostatic agent, mainly there is stronger inhibition effect to mould.
Use cement blowing agent of the present invention prepare the process of foam cement for:
It is small-sized that waste wool keratin cement blowing agent working solution prepared by the present invention builds sincere ZK-FP-30 using middle section Foam concrete foaming machine makes bubble in the case where rotating speed is 1500 turn;The design unit weight of foamed cement is 500kg/m3, according to foams Product (mL):Water (g):Cement (g)=1000:550:500 ratio is mixed evenly, and by mould molding, is conserved by 30 days Afterwards, the performance of made foamed concrete is tested.
The positive beneficial effect of the present invention:
1st, the present invention prepared by cement blowing agent application be related to prepare it is light-duty and super used in civil engineering field Light-duty foamed concrete, including pipe insulation and lightweight refracrory, lightweight engineered filler, energy-saving porous construction material, garden Woods Landscape Architecture and lightweight engineered waterproof interlayer.
2nd, the keratin raw material sources that the present invention prepares cement blowing agent use extensively, have mainly used leather and wool textile industry In waste material wool keratin, this method achieves double in terms of discarded pollution and refuse reclamation of the keratin to environment of processing The effect of win, and the cement blowing agent prepared is entirely a kind of green product, and environment is not caused in production process Pollution, with significant economic value and social benefit.
3rd, compared with prior art, the present invention also has following beneficial technique effect:
1)The present invention using waste wool keratin as raw material, the main waste wool included produced by process hides industry and
Waste wool produced by wool textile industry.Such raw material sources are extensive, while can also reduce waste wool angle egg The white pollution brought to environment, realizes twice laid to greatest extent.
2)Prepare without the harmful organic chemical reagent of addition in foaming agent of the present invention, raw material both is from poly- in natural polymer Compound keratin, the characteristics of prepared product has safety non-toxic, with good application security.
3)Animal protein class cement blowing agent prepared by the present invention has good coefficient of foaming and foam stability.
4)Animal protein class cement blowing agent prepared by the present invention can be with the excellent foaming of processability in application production Concrete.
Embodiment:
The present invention is expanded on further with reference to embodiments, but is not intended to limit present disclosure.
Embodiment 1:
The method that the present invention prepares cement blowing agent using waste wool keratin, the detailed step of the preparation method is such as Under:
A, waste wool keratin pretreatment(Waste wool pretreatment main purpose be:Remove impurities of wool And lanolin):
Water is added first into sink as cleaning solution, cetyl benzenesulfonic acid sodium is then added, is adjusted to cetyl The mass percentage concentration of benzene sulfonic acid sodium salt is 1%, obtains the cetyl benzenesulfonic acid sodium aqueous solution, is subsequently added into sodium carbonate and stirs, The addition of sodium carbonate accounts for the 0.2% of cetyl benzenesulfonic acid sodium aqueous solution weight;Waste wool keratin i.e. sheep is added after stirring evenly Hair(Waste wool keratin is just submerged with cleaning solution to be advisable), cleaning solution submergence waste wool keratin, be then in temperature 40 DEG C, rotating speed be 25 revs/min under conditions of wool is continuously washed 60 minutes;Wash after terminating, then washed 3 times with clear water, Wool reclaimed water is drained after washing and wool is dried;
B, wool keratin hydrolyzate(That is foaming agent mother liquor)Preparation:
The pretreated wool keratins of step a are shredded, wool keratin 50g is weighed after shredding and is fitted into container, it is first First add water 1000mL;Then sodium hydrogensulfite 2g is added, 16h is persistently soaked;Then gained mixed solution is 50 after soaking DEG C water-bath in place 3h, bath temperature is then risen to 100 DEG C, 23g Ca (OH) are added2, continue water under this temperature conditions 7h is solved, gained hydrating solution is filtered, adjusted the pH value of resulting solution to 7.0 after filtering, wool keratin water is obtained It is foaming agent mother liquor to solve liquid;
C, cement blowing agent preparation:
On the basis of preparing cement blowing agent gross mass 1000g, the preparation of the waste wool keratin cement blowing agent Constitute and be:Foaming agent mother liquor 300g, α-sodium olefin sulfonate 15g, gelatin 0.5g, polyvinyl alcohol 0.1g, sodium carboxymethylcellulose 0.3g, sodium benzoate 1g, sodium dehydroacetate 1g, surplus is water;
D, cement blowing agent preparation:
The proportioning composition for being first according to cement blowing agent described in step c weighs various raw materials, by the foaming agent mother liquor weighed Add in container, then sequentially add α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate and take off Acetate hydrogen sodium, is subsequently added into the water weighed and is diluted;Continued after dilution using magnetic stirring apparatus under 600 turns/min speed Stirring 8 hours, prepares waste wool keratin cement blowing agent working solution.
Embodiment 2:
The method that the present invention prepares cement blowing agent using waste wool keratin, the detailed step of the preparation method is such as Under:
A, waste wool keratin pretreatment(Waste wool pretreatment main purpose be:Remove impurities of wool And lanolin):
Water is added first into sink as cleaning solution, cetyl benzenesulfonic acid sodium is then added, is adjusted to cetyl The mass percentage concentration of benzene sulfonic acid sodium salt is 1.5%, obtains the cetyl benzenesulfonic acid sodium aqueous solution, is subsequently added into sodium carbonate stirring equal Even, the addition of sodium carbonate accounts for the 0.3% of cetyl benzenesulfonic acid sodium aqueous solution weight;Waste wool keratin is added after stirring evenly That is wool(Waste wool keratin is just submerged with cleaning solution to be advisable), cleaning solution submergence waste wool keratin, then in temperature Degree is 45 DEG C, rotating speed is continuously to wash wool 90 minutes under conditions of 50 revs/min;Wash after terminating, then 3 are washed with clear water It is secondary, wool reclaimed water is drained after washing and wool is dried;
B, wool keratin hydrolyzate(That is foaming agent mother liquor)Preparation:
The pretreated wool keratins of step a are shredded, wool keratin 50g is weighed after shredding and is fitted into container, it is first First add water 1000mL;Then sodium hydrogensulfite 2.5g is added, 12h is persistently soaked;Then gained mixed solution exists after soaking 2.5h is placed in 55 DEG C of water-bath, bath temperature is then risen to 100 DEG C, 25g Ca (OH) are added2, held under this temperature conditions Continuous hydrolysis 6h, gained hydrating solution is filtered, adjusted the pH value of resulting solution to 7.5 after filtering, wool angle egg is obtained White hydrolyzate is foaming agent mother liquor;
C, cement blowing agent preparation:
On the basis of preparing cement blowing agent gross mass 1000g, the preparation of the waste wool keratin cement blowing agent Constitute and be:Foaming agent mother liquor 280g, α-sodium olefin sulfonate 20g, gelatin 1g, polyvinyl alcohol 0.2g, sodium carboxymethylcellulose 0.4g, Sodium benzoate 1.5g, sodium dehydroacetate 1.5g, surplus is water;
D, cement blowing agent preparation:
The proportioning composition for being first according to cement blowing agent described in step c weighs various raw materials, by the foaming agent mother liquor weighed Add in container, then sequentially add α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate and take off Acetate hydrogen sodium, is subsequently added into the water weighed and is diluted;Continued after dilution using magnetic stirring apparatus under 500 turns/min speed Stirring 10 hours, prepares waste wool keratin cement blowing agent working solution.
Embodiment 3:
The method that the present invention prepares cement blowing agent using waste wool keratin, the detailed step of the preparation method is such as Under:
A, waste wool keratin pretreatment(Waste wool pretreatment main purpose be:Remove impurities of wool And lanolin):
Water is added first into sink as cleaning solution, cetyl benzenesulfonic acid sodium is then added, is adjusted to cetyl The mass percentage concentration of benzene sulfonic acid sodium salt is 2%, obtains the cetyl benzenesulfonic acid sodium aqueous solution, is subsequently added into sodium carbonate and stirs, The addition of sodium carbonate accounts for the 0.35% of cetyl benzenesulfonic acid sodium aqueous solution weight;Waste wool keratin is added after stirring evenly i.e. Wool(Waste wool keratin is just submerged with cleaning solution to be advisable), cleaning solution submergence waste wool keratin, then in temperature It is continuously to wash wool 120 minutes under conditions of 40 revs/min for 50 DEG C, rotating speed;Wash after terminating, then 3 are washed with clear water It is secondary, wool reclaimed water is drained after washing and wool is dried;
B, wool keratin hydrolyzate(That is foaming agent mother liquor)Preparation:
The pretreated wool keratins of step a are shredded, wool keratin 50g is weighed after shredding and is fitted into container, it is first First add water 1000mL;Then sodium hydrogensulfite 5g is added, 12h is persistently soaked;Then gained mixed solution is 60 after soaking DEG C water-bath in place 2h, bath temperature is then risen to 100 DEG C, 20g Ca (OH) are added2, continue water under this temperature conditions 8h is solved, gained hydrating solution is filtered, adjusted the pH value of resulting solution to 7.0 after filtering, wool keratin water is obtained It is foaming agent mother liquor to solve liquid;
C, cement blowing agent preparation:
On the basis of preparing cement blowing agent gross mass 1000g, the preparation of the waste wool keratin cement blowing agent Constitute and be:Foaming agent mother liquor 250g, α-sodium olefin sulfonate 25g, gelatin 1.5g, polyvinyl alcohol 0.4g, sodium carboxymethylcellulose 0.5g, sodium benzoate 2.5g, sodium dehydroacetate 2g, surplus is water;
D, cement blowing agent preparation:
The proportioning composition for being first according to cement blowing agent described in step c weighs various raw materials, by the foaming agent mother liquor weighed Add in container, then sequentially add α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate and take off Acetate hydrogen sodium, is subsequently added into the water weighed and is diluted;Continued after dilution using magnetic stirring apparatus under 600 turns/min speed Stirring 10 hours, prepares waste wool keratin cement blowing agent working solution.
Embodiment 4:
The method that the present invention prepares cement blowing agent using waste wool keratin, the detailed step of the preparation method is such as Under:
A, waste wool keratin pretreatment(Waste wool pretreatment main purpose be:Remove impurities of wool And lanolin):
Water is added first into sink as cleaning solution, cetyl benzenesulfonic acid sodium is then added, is adjusted to cetyl The mass percentage concentration of benzene sulfonic acid sodium salt is 3%, obtains the cetyl benzenesulfonic acid sodium aqueous solution, is subsequently added into sodium carbonate and stirs, The addition of sodium carbonate accounts for the 0.4% of cetyl benzenesulfonic acid sodium aqueous solution weight;Waste wool keratin i.e. sheep is added after stirring evenly Hair(Waste wool keratin is just submerged with cleaning solution to be advisable), cleaning solution submergence waste wool keratin, be then in temperature 55 DEG C, rotating speed be 60 revs/min under conditions of wool is continuously washed 120 minutes;Wash after terminating, then washed 3 times with clear water, Wool reclaimed water is drained after washing and wool is dried;
B, wool keratin hydrolyzate(That is foaming agent mother liquor)Preparation:
The pretreated wool keratins of step a are shredded, wool keratin 50g is weighed after shredding and is fitted into container, it is first First add water 1000mL;Then sodium hydrogensulfite 4.5g is added, 15h is persistently soaked;Then gained mixed solution exists after soaking 3h is placed in 60 DEG C of water-bath, bath temperature is then risen to 100 DEG C, 22g Ca (OH) are added2, continue under this temperature conditions 6.5h is hydrolyzed, gained hydrating solution is filtered, adjusted the pH value of resulting solution to 8.0 after filtering, wool angle egg is obtained White hydrolyzate is foaming agent mother liquor;
C, cement blowing agent preparation:
On the basis of preparing cement blowing agent gross mass 1000g, the preparation of the waste wool keratin cement blowing agent Constitute and be:Foaming agent mother liquor 250g, α-sodium olefin sulfonate 22g, gelatin 1.2g, polyvinyl alcohol 0.5g, sodium carboxymethylcellulose 0.35g, sodium benzoate 2.8g, sodium dehydroacetate 1.5g, surplus is water;
D, cement blowing agent preparation:
The proportioning composition for being first according to cement blowing agent described in step c weighs various raw materials, by the foaming agent mother liquor weighed Add in container, then sequentially add α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate and take off Acetate hydrogen sodium, is subsequently added into the water weighed and is diluted;Continued after dilution using magnetic stirring apparatus under 600 turns/min speed Stirring 12 hours, prepares waste wool keratin cement blowing agent working solution.
Application of the cement blowing agent in foam cement is prepared prepared by the embodiment of the present invention 1~4:
Section in the waste wool keratin foaming agent working solution of the preparation of the embodiment of the present invention 1~4 respectively use is built into sincere ZK- The small-sized foam concrete foaming machines of FP-30 make bubble under conditions of rotating speed is 1500 rev/min;The design unit weight of foamed cement is 500kg/m3, according to foam volume (mL):Water (g):Cement (g)=1000:550:500 ratio is mixed evenly, and passes through Mould molding, after 30 days conserve, tests the performance of foamed concrete.
The cement blowing agent working solution for taking the embodiment of the present invention 1~4 to prepare, the foam performance of test gained foam refers to table 1, prepared concrete performance refers to table 2.

Claims (4)

1. a kind of method that utilization waste wool keratin prepares cement blowing agent, it is characterised in that the preparation method includes Following steps:
A, waste wool keratin pretreatment:
Water is added first into sink as cleaning solution, cetyl benzenesulfonic acid sodium is then added, is adjusted to cetyl benzene sulphur The mass percentage concentration of sour sodium is 1~3%, obtains the cetyl benzenesulfonic acid sodium aqueous solution, is subsequently added into sodium carbonate and stirs, The addition of sodium carbonate accounts for the 0.2~0.4% of cetyl benzenesulfonic acid sodium aqueous solution weight;Waste wool angle egg is added after stirring evenly It is wool, cleaning solution submergence waste wool keratin in vain;Then temperature be 40~55 DEG C, rotating speed be 15~60 revs/min Under the conditions of wool is continuously washed 60~120 minutes;Wash after terminating, then washed 2~3 times with clear water, by wool after washing Water drains and dries wool;
B, wool keratin hydrolyzate are the preparation of foaming agent mother liquor:
The pretreated wool keratins of step a are shredded, weighing wool keratin after shredding is fitted into container, is firstly added The mass ratio of water, the wool keratin and both water addition is 1:15~30;Then sodium hydrogensulfite, the sulfurous are added Sour hydrogen sodium is 1 with the mass ratio that both wool keratins are added:10~25, persistently soak 12~20h;Then gained after soaking Mixed solution places 1~3h in 50~60 DEG C of water-bath, and bath temperature then is risen into 90~100 DEG C, adds Ca (OH)2, The Ca (OH)2It is 20~25 with the mass ratio that wool keratin is added therebetween:50, the continued hydrolysis under this temperature conditions 5~8h, gained hydrating solution is filtered, and is adjusted the pH value of resulting solution to 7~8 after filtering, is obtained wool keratin Hydrolyzate is foaming agent mother liquor;
C, cement blowing agent preparation:
Represented with weight/mass percentage composition, the preparation composition of the waste wool keratin cement blowing agent is:Foaming agent mother liquor 25 ~30%, α-sodium olefin sulfonate 1.0~2.5%, gelatin 0.05~0.15%, polyvinyl alcohol 0.01~0.05%, carboxymethyl cellulose Sodium 0.03~0.05%, sodium benzoate 0.1~0.4%, sodium dehydroacetate 0.1~0.3%, surplus is water;
D, cement blowing agent preparation:
The proportioning composition for being first according to cement blowing agent described in step c weighs various raw materials, and the foaming agent mother liquor weighed is added In container, α-sodium olefin sulfonate, gelatin, polyvinyl alcohol, sodium carboxymethylcellulose, sodium benzoate and dehydrogenation vinegar are then sequentially added Sour sodium, then adds the water weighed and is diluted;Held after dilution using magnetic stirring apparatus under 300~600 turns/min speed Continuous stirring 8~12 hours, prepares waste wool keratin cement blowing agent working solution.
2. the method that utilization waste wool keratin according to claim 1 prepares cement blowing agent, it is characterised in that:Step Waste wool keratin described in rapid a comes from the processing waste wool of wool textile industry or the waste wool of leather production industry.
3. the method that utilization waste wool keratin according to claim 1 prepares cement blowing agent, it is characterised in that:Step Wool keratin and the mass ratio of both water addition are 1 described in rapid b:20.
4. the method that utilization waste wool keratin according to claim 1 prepares cement blowing agent, it is characterised in that:Step Bath temperature is risen to 100 DEG C described in rapid b.
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CN108484202A (en) * 2018-03-27 2018-09-04 申轲 The cement blowing agent prepared using discarded scurf
CN108424035A (en) * 2018-04-19 2018-08-21 中原工学院 A kind of preparation method of polymer water cement foaming agent and its foamed concrete
CN108840594A (en) * 2018-07-25 2018-11-20 南京航空航天大学 Compound high stability Foam lightweight soil foaming agent and preparation method thereof
CN108948133B (en) * 2018-08-23 2022-01-28 中原工学院 Method for preparing oligopeptide aqueous solution based on waste wool fibers
CN109400039A (en) * 2018-12-10 2019-03-01 中国五冶集团有限公司 A kind of foam concrete road and bridge filling material
CN109467333A (en) * 2018-12-10 2019-03-15 中国五冶集团有限公司 A kind of light-weight foamed concrete foaming agent

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CN105198484A (en) * 2015-10-29 2015-12-30 郑州航空工业管理学院 Method for preparing cement foaming agent by using fish scales

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CN102432329A (en) * 2011-09-02 2012-05-02 吉林大学 Hydrolyzed animal blood meal cement foaming agent and its application in lightweight cement preparation
CN104725070A (en) * 2015-03-19 2015-06-24 烟台大学 Method for preparing hair cement foaming agent
CN104724973A (en) * 2015-03-19 2015-06-24 烟台大学 Preparation method of leather meal cement foaming agent
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