CN107501833A - A kind of preparation method of super absorbent resin - Google Patents
A kind of preparation method of super absorbent resin Download PDFInfo
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- CN107501833A CN107501833A CN201710928964.6A CN201710928964A CN107501833A CN 107501833 A CN107501833 A CN 107501833A CN 201710928964 A CN201710928964 A CN 201710928964A CN 107501833 A CN107501833 A CN 107501833A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
- D06M11/05—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Abstract
The invention discloses a kind of preparation method of super absorbent resin, belong to resin making technique field.The super absorbent resin main material of the present invention is acrylic acid, acrylic acid is with the sugarcane fibre in cane powder under the conditions of 50 DEG C of temperatures above, generation graft copolymerization, form tridimensional network, N, N methylene-bisacrylamides play crosslinked action in tridimensional network, resin greatly increases after water entrance to the contact area of water, and acid amides type organic easily resolves into small molecule with water, the expansion energy of resin after water suction is set to accommodate more water, so as to improve the water imbibition of resin；Cotton stalk bark fibre is met water and easily crimped in the present invention, resin surface is made up of cotton stalk bark fibre, water crimps into rear cotton stalk bark fibre, make shipwreck to be extruded, the resin internal layer of cotton stalk bark fibre is impregnated with and crude oil, water are wrapped up by oil reservoir, constantly absorbed by tridimensional network, and constantly expand, continue to absorb water to saturation, so as to reach the effect of high-hydroscopicity.
Description
Technical field
The invention discloses a kind of preparation method of super absorbent resin, belong to resin making technique field.
Background technology
Resin typically refer to it is heated after have hardening or a fusion range, have liquidity preference, normal temperature under external force during softening
Under be solid-state, semisolid, can also be the organic polymer of liquid sometimes.In a broad aspect, plastic products processing can be used as former
Any high-molecular compound of material is referred to as resin.Relative molecular weight is uncertain but generally higher, under normal temperature in solid-state, in it is solid
State, pseudo-solid condition, can also be the organic substance of liquid sometimes.With temperature range is softened or melted, there is stream under external force
Dynamic tendency, rupture is in conchoidal often.Broadly refer to polymer or prepolymer as plastic basis material.It is general not soluble in water,
Organic solvent can be dissolved in.Natural resin and synthetic resin can be by sources divided into；There is thermoplastic again by the characteristics of its processing behavior difference
Property resin and thermosetting resin point.
Resin can by sources be divided into：Natural resin and synthetic resin, natural resin refer to be secreted by animals and plants in nature
Amorphous organic substance obtained by thing, such as rosin, amber, shellac.Synthetic resin refers to by simple organic through chemical synthesis
Or some natural products are set through resin product obtained from chemical reaction, such as phenolic resin, Corvic wherein synthesizing
Fat is the main component of plastics.
Resin can be used as resin environmental protection rhinestone, various to scald resin diamond and imitative Austrian section brill Middle East section brill, use
Importing technology produces, A wide selection of colours and designs, first-class quality.It is various that section resin diamond, smooth surface resin and special-shaped resin diamond etc. can be produced
Shape；Product has precision high, and good brightness, corner angle are clear, not easy to wear, are not easy scratch, various colors, shape effect is various, ring
The advantages that protecting nature.
With social development, resin stain is serious, and reproducible importance increasingly increases.Resin is renewable to be divided into following current again
Raw and counter-current regeneration.During co-current regeneration raw water and regenerated liquid flow through exchange oxidant layer direction it is identical.Therefore friendship is flowed through in regenerated liquid
Change touched first during oxidant layer be exchange oxidant layer top it is entirely ineffective comprising top exchange oxidant layer be displaced come from
Son, the degree regeneration degree main again for influenceing to exchange oxidant layer bottom refer in ion exchange oxidant layer regenerant ions amount and whole exchange capacities
Ratio, water quality treatment is caused to reduce, regenerating agent consumption increase.The water imbibition of resin is not high and is badly in need of the difficulty to be captured now
Topic.
Therefore invent a kind of high resin of water imbibition has positive effect to resin making technique field.
The content of the invention
Present invention mainly solves technical problem, the defects of being not so good as acid amides resinoid for acrylic resin water imbibition, carry
A kind of preparation method of super absorbent resin is supplied.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of preparation method of super absorbent resin, it is characterised in that specifically preparation process is：
（1）Sugarcane is taken, after squeezing sugar-cane juice with cane crusher, obtains bagasse, 30~35g bagasse is weighed and is placed in mortar,
Grinding, sieving obtain cane powder, and cane powder is added in conical flask, and it is molten that 100~120mL sodium hydroxides are added into conical flask
Liquid, heat temperature raising, boiling, filter off except filtrate obtains powder, powder is put into baking oven, heat temperature raising, dry, obtain pre- place
The cane powder of reason；
（2）The cane powder for weighing 20~25g pretreatments is added in conical flask, and 10~15mL acrylic acid is added into conical flask, is used
Sodium hydroxide solution regulation pH is neutrality, obtains suspension, suspension is mixed with kaolin, is placed in high speed dispersor, point
Dissipate, obtain pre-dispersed suspension；
（3）300~500g cotton stalks are weighed, cotton stalk is rolled with roller machine, the cotton stalk bark that cotton stalk core obtains are removed, by cotton stalk bark
It is put into glass jar, 400~500mL water and 40~50g vaseline, stirring is added into glass jar, then glass jar is heated and risen
Temperature, insulation softening, obtain softening cotton stalk bark, to the sprinkling of softening cotton stalk bark and crude oil water, wet cotton stalk bark fibre is obtained, by wet cotton stalk
Hide fiber is placed in baking oven, heat temperature raising, is dried, is obtained cotton stalk bark fibre；
（4）Count in parts by weight, by 7~10 parts of cane powders, 70~80 parts of pre-dispersed suspension, 15~18 parts of cotton stalk bark fibres, 3
~5 parts of ammonium persulfates, 20~30 parts of N, N- methylene-bisacrylamides are put into three-necked flask, to three-necked flask heating water bath liter
Temperature, start agitator, stirring reaction, obtain reaction product, reaction product is washed with absolute ethyl alcohol, and reaction is produced with acetone
Thing soxhlet type, the reaction product after extracting is put into vacuum drying chamber, design temperature, dries, obtains super absorbent resin.
Step（1）Described 20~25min of milling time, specification of sieving are 100 mesh, sodium hydroxide solution mass fraction
For 40%, temperature is 120~130 DEG C after heat temperature raising, and digestion time be 1~2h, and temperature is 100~110 after baking oven heat temperature raising
DEG C, drying time is 2~3h.
Step（2）The mass fraction of described sodium hydroxide solution is 10%, and the mass ratio that suspension mixes with kaolin is
3 ︰ 1, the rotating speed of high speed dispersor is 2000~3000r/min, and jitter time is 12~15min.
Step（3）Described rolling cotton stalk 5~7 times, mixing time is 10~15min, after glass jar heat temperature raising
Temperature is 80~90 DEG C, and the insulation softening time be 40~45min, and the water oil volume ratio of crude oil water is 1 ︰ 4, and crude oil water sprays
Measure to soften the 2~3% of cotton stalk bark quality, heat temperature raising is 85~90 DEG C, and drying time is 3~5h.
Step（4）It is described three-necked flask heating water bath is heated up after temperature be 70~75 DEG C, speed of agitator is 300~
350r/min, stirring reaction time are 3~5h, and ethanol washing times are 3~5 times, acetone to reaction product soxhlet type 18~
24h, design temperature are 90~95 DEG C, and drying time is 3~4h.
The beneficial effects of the invention are as follows：
（1）The super absorbent resin main material of the present invention be acrylic acid, the sugarcane fibre in acrylic acid and cane powder 50 DEG C with
Under upper temperature conditionss, graft copolymerization occurs, forms tridimensional network, N, N- methylene-bisacrylamides are in tridimensional network
Crosslinked action is played, resin greatly increases after water entrance to the contact area of water, and acid amides type organic easily resolves into small point with water
Son, make the more water of expansion energy receiving of resin after water suction, so as to improve the water imbibition of resin；
（2）Cotton stalk bark fibre is met water and easily crimped in the present invention, and resin surface is made up of cotton stalk bark fibre, and it is fine that water enters rear cotton stalk bark
Dimension crimps, and makes shipwreck to be extruded, the resin internal layer of cotton stalk bark fibre is impregnated with and crude oil, water are wrapped up by oil reservoir, constantly quilt
Tridimensional network absorbs, and constantly expands, and continues to absorb water to saturation, so as to reach the effect of high-hydroscopicity.
Embodiment
Sugarcane is taken, after squeezing sugar-cane juice with cane crusher, obtains bagasse, 30~35g bagasse is weighed and is placed in mortar
In, grind 20~25min, cross 100 mesh sieves obtain cane powder, will cane powder add conical flask in, into conical flask add 100~
120mL mass fractions are 40% sodium hydroxide solution, are heated to 120~130 DEG C, 1~2h of boiling, filter off except filtrate
Powder is obtained, powder is put into baking oven, is heated to 100~110 DEG C, dries 2~3h, obtains pre-processing cane powder；Claim
Take 20~25g pretreatment cane powders to add in conical flask, 10~15mL acrylic acid is added into conical flask, is with mass fraction
10% sodium hydroxide solution regulation pH is neutrality, obtains suspension, and suspension is mixed for 3 ︰ 1 in mass ratio with kaolin, put
In high speed dispersor, 12~15min is disperseed with 2000~3000r/min rotating speed, pre-dispersed suspension is obtained, weighs 300
~500g cotton stalks, cotton stalk is rolled 5~7 times with roller machine, remove the cotton stalk bark that cotton stalk core obtains, cotton stalk bark is put into glass
In cylinder, 400~500mL water and 40~50g vaseline are added into glass jar, stirs 10~15min, then glass jar is heated and risen
Temperature insulation 40~45min of softening, obtains softening cotton stalk bark, is 1 ︰ 4 to softening cotton stalk bark spray water oil volume ratio to 80~90 DEG C
And crude oil water, and crude oil water fountain height for softening cotton stalk bark quality 2~3%, wet cotton stalk bark fibre is obtained, by wet cotton stalk bark
Fiber is placed in baking oven, is heated to 85~90 DEG C, is dried 3~5h, is obtained cotton stalk bark fibre；Count in parts by weight, by 7~
10 parts of cane powders, 70~80 parts of pre-dispersed suspension, 15~18 parts of cotton stalk bark fibres, 3~5 parts of ammonium persulfates, 20~30 parts of N,
N- methylene-bisacrylamides are put into three-necked flask, and 70~75 DEG C are warming up to three-necked flask heating water bath, start agitator,
With 300~350r/min rotating speed 3~5h of stirring reaction, reaction product is obtained, reaction product is washed 3~5 with absolute ethyl alcohol
It is secondary, and vacuum drying chamber, setting temperature are put into by the reaction product after extracting to reaction product 18~24h of soxhlet type with acetone
Spend for 90~95 DEG C, dry 3~4h, obtain super absorbent resin.
Example 1
Sugarcane is taken, after squeezing sugar-cane juice with cane crusher, obtains bagasse, 30g bagasse is weighed and is placed in mortar, is ground
20min, crosses 100 mesh sieves and obtains cane powder, cane powder is added in conical flask, and 100mL mass fractions are added into conical flask and are
40% sodium hydroxide solution, 120 DEG C, boiling 1h are heated to, filter off except filtrate obtains powder, powder is put into baking oven
In, 100 DEG C are heated to, dries 2h, obtains pre-processing cane powder；20g pretreatment cane powders are weighed to add in conical flask, to
10mL acrylic acid is added in conical flask, the sodium hydroxide solution for being 10% with mass fraction regulation pH is neutral, obtains suspension,
Suspension is mixed for 3 ︰ 1 in mass ratio with kaolin, is placed in high speed dispersor, is disperseed with 2000r/min rotating speed
12min, pre-dispersed suspension is obtained, weigh 300g cotton stalks, cotton stalk is rolled 5 times with roller machine, remove what cotton stalk core obtained
Cotton stalk bark, cotton stalk bark is put into glass jar, 400mL water and 40g vaseline are added into glass jar, stir 10min, then to glass
Glass cylinder is heated to 80 DEG C, insulation softening 40min, obtains softening cotton stalk bark, is to softening cotton stalk bark spray water oil volume ratio
1 ︰ 4 2% with crude oil water, and crude oil water fountain height for softening cotton stalk bark quality, obtains wet cotton stalk bark fibre, by wet cotton stalk bark
Fiber is placed in baking oven, is heated to 85 DEG C, is dried 3h, is obtained cotton stalk bark fibre；Count in parts by weight, by 7 parts of cane powders,
70 parts of pre-dispersed suspension, 15 parts of cotton stalk bark fibres, 3 parts of ammonium persulfates, 20 parts of N,N methylene bis acrylamides are put into three mouthfuls
In flask, 70 DEG C are warming up to three-necked flask heating water bath, starts agitator, with 300r/min rotating speed stirring reaction 3h, obtains
To reaction product, reaction product is washed 3 times with absolute ethyl alcohol, and with acetone to reaction product soxhlet type 18h, after extracting
Reaction product be put into vacuum drying chamber, design temperature is 90 DEG C, dries 3h, obtains super absorbent resin.
Example 2
Sugarcane is taken, after squeezing sugar-cane juice with cane crusher, obtains bagasse, 32g bagasse is weighed and is placed in mortar, is ground
22min, crosses 100 mesh sieves and obtains cane powder, cane powder is added in conical flask, and 110mL mass fractions are added into conical flask and are
40% sodium hydroxide solution, 125 DEG C, boiling 1.5h are heated to, filtered off except filtrate obtains powder, powder is put into baking
In case, 105 DEG C are heated to, dries 2.5h, obtains pre-processing cane powder；Weigh 22g pretreatment cane powders and add conical flask
In, 12mL acrylic acid is added into conical flask, the sodium hydroxide solution for being 10% with mass fraction regulation pH is neutral, is hanged
Supernatant liquid, suspension is mixed for 3 ︰ 1 in mass ratio with kaolin, is placed in high speed dispersor, is disperseed with 2500r/min rotating speed
14min, pre-dispersed suspension is obtained, weigh 400g cotton stalks, cotton stalk is rolled 6 times with roller machine, remove what cotton stalk core obtained
Cotton stalk bark, cotton stalk bark is put into glass jar, 450mL water and 45g vaseline are added into glass jar, stir 12min, then to glass
Glass cylinder is heated to 85 DEG C, insulation softening 42min, obtains softening cotton stalk bark, is to softening cotton stalk bark spray water oil volume ratio
1 ︰ 4 2.5% with crude oil water, and crude oil water fountain height for softening cotton stalk bark quality, obtains wet cotton stalk bark fibre, by wet cotton stalk
Hide fiber is placed in baking oven, is heated to 87 DEG C, is dried 4h, is obtained cotton stalk bark fibre；Count in parts by weight, by 8 portions of sugarcanes
Powder, 75 parts of pre-dispersed suspension, 16 parts of cotton stalk bark fibres, 4 parts of ammonium persulfates, 25 parts of N,N methylene bis acrylamides are put into three
In mouthful flask, 72 DEG C are warming up to three-necked flask heating water bath, starts agitator, with 320r/min rotating speed stirring reaction 4h,
Reaction product is obtained, reaction product is washed 4 times with absolute ethyl alcohol, and reaction product soxhlet type 20h will be extracted with acetone
Reaction product afterwards is put into vacuum drying chamber, and design temperature is 92 DEG C, dries 3.5h, obtains super absorbent resin.
Example 3
Sugarcane is taken, after squeezing sugar-cane juice with cane crusher, obtains bagasse, 35g bagasse is weighed and is placed in mortar, is ground
25min, crosses 100 mesh sieves and obtains cane powder, cane powder is added in conical flask, and 120mL mass fractions are added into conical flask and are
40% sodium hydroxide solution, 130 DEG C, boiling 2h are heated to, filter off except filtrate obtains powder, powder is put into baking oven
In, 110 DEG C are heated to, dries 3h, obtains pre-processing cane powder；25g pretreatment cane powders are weighed to add in conical flask, to
15mL acrylic acid is added in conical flask, the sodium hydroxide solution for being 10% with mass fraction regulation pH is neutral, obtains suspension,
Suspension is mixed for 3 ︰ 1 in mass ratio with kaolin, is placed in high speed dispersor, is disperseed with 3000r/min rotating speed
15min, pre-dispersed suspension is obtained, weigh 500g cotton stalks, cotton stalk is rolled 7 times with roller machine, remove what cotton stalk core obtained
Cotton stalk bark, cotton stalk bark is put into glass jar, 500mL water and 50g vaseline are added into glass jar, stir 15min, then to glass
Glass cylinder is heated to 90 DEG C, insulation softening 45min, obtains softening cotton stalk bark, is to softening cotton stalk bark spray water oil volume ratio
1 ︰ 4 3% with crude oil water, and crude oil water fountain height for softening cotton stalk bark quality, obtains wet cotton stalk bark fibre, by wet cotton stalk bark
Fiber is placed in baking oven, is heated to 90 DEG C, is dried 5h, is obtained cotton stalk bark fibre；Count in parts by weight, by 10 portions of sugarcanes
Powder, 80 parts of pre-dispersed suspension, 18 parts of cotton stalk bark fibres, 5 parts of ammonium persulfates, 30 parts of N,N methylene bis acrylamides are put into three
In mouthful flask, 75 DEG C are warming up to three-necked flask heating water bath, starts agitator, with 350r/min rotating speed stirring reaction 5h,
Reaction product is obtained, reaction product is washed 5 times with absolute ethyl alcohol, and reaction product soxhlet type 24h will be extracted with acetone
Reaction product afterwards is put into vacuum drying chamber, and design temperature is 95 DEG C, dries 4h, obtains super absorbent resin.
Comparative example
With the super absorbent resin of Yixing company production as a comparison case to super absorbent resin produced by the present invention and contrast
Super absorbent resin in example carries out performance detection, and testing result is as shown in table 1：
1st, method of testing：
Water absorbent rate test is detected using detector for water content rate；
Water retention method of testing：Example 1~3 and the saturation water-absorbing resin of comparative example mean quality are weighed, is put into identical four
A thin layer is paved into culture dish, weighs now quality, regularly claims its quality day by day later, water retention R is calculated as follows：R=m0-
(m1-m2)/m×100%；
Note：R：Water retention, %；m0：Saturation water-absorbing resin quality, g；m1：Saturation water-absorbing resin and culture dish quality and, g；m2：Water
After point evaporation water-absorbing resin and culture dish quality and, g.
Table 1
| Test event | Example 1 | Example 2 | Example 3 | Comparative example |
| Water absorbent rate | 708 | 710 | 715 | 520 |
| Water retention（%） | 97 | 98 | 99 | 85 |
It can be seen from above-mentioned middle data, the water absorbent rate of super absorbent resin produced by the present invention is high, and water retention property is good, water imbibition
It is good, have broad application prospects.
Claims (5)
1. a kind of preparation method of super absorbent resin, it is characterised in that specifically preparation process is：
（1）1 sugarcane is taken, after squeezing sugar-cane juice with cane crusher, obtains bagasse, 30~35g bagasse is weighed and is placed in and grind
Alms bowl, grinding, sieving obtain cane powder, and cane powder is added in conical flask, and 100~120mL sodium hydroxides are added into conical flask
Solution, heat temperature raising, boiling, filter off except filtrate obtains powder, powder is put into baking oven, heat temperature raising, dry, obtain pre-
The cane powder of processing；
（2）The cane powder for weighing 20~25g pretreatments is added in conical flask, and 10~15mL acrylic acid is added into conical flask, is used
Sodium hydroxide solution regulation pH is neutrality, obtains suspension, suspension is mixed with kaolin, is placed in high speed dispersor, point
Dissipate, obtain pre-dispersed suspension；
（3）300~500g cotton stalks are weighed, cotton stalk is rolled with roller machine, the cotton stalk bark that cotton stalk core obtains are removed, by cotton stalk bark
It is put into glass jar, 400~500mL water and 40~50g vaseline, stirring is added into glass jar, then glass jar is heated and risen
Temperature, insulation softening, obtain softening cotton stalk bark, to the sprinkling of softening cotton stalk bark and crude oil water, wet cotton stalk bark fibre is obtained, by wet cotton stalk
Hide fiber is placed in baking oven, heat temperature raising, is dried, is obtained cotton stalk bark fibre；
（4）Count in parts by weight, by 7~10 parts of cane powders, 70~80 parts of pre-dispersed suspension, 15~18 parts of cotton stalk bark fibres, 3
~5 parts of ammonium persulfates, 20~30 parts of N, N- methylene-bisacrylamides are put into three-necked flask, to three-necked flask heating water bath liter
Temperature, start agitator, stirring reaction, obtain reaction product, reaction product is washed with absolute ethyl alcohol, and reaction is produced with acetone
Thing soxhlet type, the reaction product after extracting is put into vacuum drying chamber, design temperature, dries, obtains super absorbent resin.
A kind of 2. preparation method of super absorbent resin according to claim 1, it is characterised in that：Step（1）Described
20~25min of milling time, specification of sieving are 100 mesh, and sodium hydroxide solution mass fraction is 40%, temperature after heat temperature raising
For 120~130 DEG C, digestion time is 1~2h, and temperature is 100~110 DEG C after baking oven heat temperature raising, and drying time is 2~3h.
A kind of 3. preparation method of super absorbent resin according to claim 1, it is characterised in that：Step（2）Described
The mass fraction of sodium hydroxide solution is 10%, and the mass ratio that suspension mixes with kaolin is 3 ︰ 1, the rotating speed of high speed dispersor
For 2000~3000r/min, jitter time is 12~15min.
A kind of 4. preparation method of super absorbent resin according to claim 1, it is characterised in that：Step（3）Described
Roll cotton stalk 5~7 times, mixing time is 10~15min, is 80~90 DEG C to temperature after glass jar heat temperature raising, insulation is soft
The change time is 40~45min, and crude oil water water oil volume ratio is 1 ︰ 4, and 2 that crude oil water fountain height is softening cotton stalk bark quality~
3%, heat temperature raising is 85~90 DEG C, and drying time is 3~5h.
A kind of 5. preparation method of super absorbent resin according to claim 1, it is characterised in that：Step（4）Described
Temperature is 70~75 DEG C after being heated up to three-necked flask heating water bath, and speed of agitator is 300~350r/min, and the stirring reaction time is
3~5h, ethanol washing times are 3~5 times, and for acetone to reaction product 18~24h of soxhlet type, design temperature is 90~95 DEG C,
Drying time is 3~4h.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108485580A (en) * | 2018-03-28 | 2018-09-04 | 许水仙 | A kind of preparation method of bi-component vitrified brick gum |
| CN108795346A (en) * | 2018-07-11 | 2018-11-13 | 佛山陵朝新材料有限公司 | A kind of preparation method of two-component high viscosity ceramic tile bond |
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