CN107652482A - A kind of degradable high-elastic sponge and its preparation technology - Google Patents
A kind of degradable high-elastic sponge and its preparation technology Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0033—Use of organic additives containing sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0052—Organo-metallic compounds
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/048—Elimination of a frozen liquid phase
- C08J2201/0484—Elimination of a frozen liquid phase the liquid phase being aqueous
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2307/00—Characterised by the use of natural rubber
- C08J2307/02—Latex
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
Abstract
The present invention relates to a kind of composition of green natural containing unsoundness, manufacture craft environmental protection are environmentally safe to human body non-hazardous, the degradable high-elastic sponge that the mechanical property such as the wasting of resources and environmental pollution and resilience, compression set value can be avoided to meet international standard and its preparation technology, the obtained degradable high-elastic main composition health green non-pollution of sponge, it is environmentally friendly and to human body without ill effect；To inherently a kind of recycling of pineapple numb material, reduce the wasting of resources；Pina improves the physical property of the low-density sponge of natural emulsion matrix, meets international standard；The foaming agent that instead of tradition as foaming agent using sodium sulfate of polyethenoxy ether of fatty alcohol and lauryl sodium sulfate has pollution property further avoids polluting；A kind of sponge of high-performance low-density is provided, the cavernous body of higher force performance has been produced in the case where keeping the relatively low preparation cost of low-density sponge；Production technology is safe and simple, environmentally safe.
Description
Technical field
The present invention relates to a kind of sponge field, more particularly to a kind of composition of green natural containing unsoundness, manufacture craft environmental protection
It is environmentally safe to human body non-hazardous, the wasting of resources and environmental pollution and resilience, compression set value etc. can be avoided
Mechanical property meets degradable high-elastic sponge and its preparation technology of international standard.
Background technology
Sponge is a kind of extremely common porous material, has good water imbibition, partly with good elasticity, deformation
Restorative etc. performance, it can be used in clean article or for producing some comfortable soft seat cushions.
The sponge that people commonly use is made up of wood cellulose fibers or foamed plastic polymer.In addition, also have by spongia
Manufactured natural sponge, most of natural sponges are used for clean body or drawing.In addition, closed made of also three class other materials
Into sponge, respectively low-density polyethers（Not water-absorbing sponge）, polyvinyl alcohol（High-absorbent material, without obvious stomata）And polyester.
For at present, manufacturing cost and the sponge density of in the market sponge are proportionate, and density is higher, and cost is also higher, but
The physical property of low-density sponge is often not so good as high-density sponge, particularly in the use as seat cushion etc., thus seeks
A kind of low-density but have excellent mechanical performances can meet mechanical property standard needed for seat cushion sponge in the world low-density it is high-elastic
Property sponge is a great development direction.Caused pollution is larger in the preparation process of sponge at present simultaneously, and sponge is mostly artificial high poly-
Thing is difficult to degrade, and foaming agent damages to people in foaming process, environment is polluted, and one urgently to be resolved hurrily is asked
Topic.
Patent Office of the People's Republic of China was on 2 15th, 2017 hairs for disclosing an a kind of low-density high-mechanic sponge and manufacture craft
Bright patent application document, application publication number CN106397711A, the patent of invention is by reducing the expansion density of sponge so that
Required production material is greatly decreased when producing the sponge of same volume, reduces production cost, has on the other hand selected polyethers
Polyalcohol and polymer polyatomic alcohol improve the hardness of sponge, avoid because density is too low and caused by physical property decline ask
Topic.But its still suffer from the preparation process of sponge it is caused pollution it is larger, artificial high polymer is difficult to degrade, and foaming agent was foaming
The problem of damaging to people in journey, being polluted to environment.
The content of the invention
Too high to solve above-specified high density sponge production cost, low-density sponge mechanical property is poor can not to meet seat cushion sea
Continuous standard, and caused pollution is larger in the preparation process of sponge at present, artificial high polymer is difficult to degrade, and foaming agent was foaming
The problem of damaging to people in journey, being polluted to environment, there is provided a kind of composition of green natural containing unsoundness, manufacture craft
Environmental protection it is environmentally safe to human body non-hazardous, the wasting of resources and environmental pollution and resilience, compression set can be avoided
The mechanical properties such as value meet the degradable high-elastic sponge of international standard.
It is a further object of the present invention to provide a kind of preparation technology of degradable high-elastic sponge.
To achieve the above object, the present invention uses following technical scheme：A kind of degradable high-elastic sponge, the degradable height
Playing sponge preparing raw material includes following parts by weight material：Natural emulsion 90-100 parts, formaldehyde 0.2-0.6 parts, potassium hydroxide
0.8-1.1 parts, sulphur 1.9-2.2 parts, sodium sulfate of polyethenoxy ether of fatty alcohol 0.35-0.85 parts, lauryl sodium sulfate 2.5-
3.5 parts, zinc oxide 1.6-2.4 parts, prodan 1.20-1.65 parts, A accelerator 0.8-1.15 parts, B accelerator 0.35-0.55
Part, C accelerator 0.05-0.30 parts and additive 1.8-4 parts.
Preferably, the degradable high-elastic sponge preparing raw material includes following parts by weight material：Natural emulsion 95-
100 parts, formaldehyde 0.3-0.45 parts, potassium hydroxide 0.9-1.0 parts, sulphur 1.95-2.05 parts, sodium sulfate of polyethenoxy ether of fatty alcohol
0.55-0.70 parts, lauryl sodium sulfate 2.8-3.0 parts, zinc oxide 1.85-2.15 parts, prodan 1.40-1.55 parts, A promote
Enter agent 1.0-1.05 parts, B accelerator 0.4-0.5 parts, C accelerator 0.15-0.25 parts and additive 2.8-3.2 parts.
Preferably, the A accelerator is dibenzyl dithio amino methanol zinc, B accelerator is 2- mercapto alcohol radical benzo thiophenes
Azoles, C accelerator are WI | LLING DM or WI | any one in LLING TMTD, the additive are that pina Ultramicro-powder hangs
Liquid.
Preferably, the pina Ultramicro-powder suspension is made up of following technique：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 15-60min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 75-80% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 9-11%.
Preferably, the natural emulsion total solid content is more than 65%, ammonia content 0.5-0.8%.
A kind of preparation technology of degradable high-elastic sponge, the preparation technology include following preparation process：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 80-100r/min, mixing time 10-
15min, obtain formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 56-60r/min stirring is carried out to latex, is slowly added to the stirring of C accelerator
10-15min, obtain mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 36-48h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 250-300r/min, is stirred to a large amount of foaming, then slowing down, it is even to carry out
Bubble stirring, speed of agitator 120-150r/min, mixing time 15-20min, obtains expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 1-2min and continue to stir, speed of agitator 180-200r/min, stirring
Injection molding is carried out immediately to gel point, is put under 90-120 DEG C of environment the 15-20min that shapes, is obtained blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 55-65min, and taking-up is transferred under low temperature environment
Row pre-freeze is molded, and pre-freeze time 12-18h, obtains pre-freeze body, pre-freeze body is freeze-dried, after freeze-dried 17-25h
Obtain the degradable high-elastic sponge.
Preferably, step 6）The low temperature environment is 5-10 DEG C, and the freeze-drying is divided into three phases：（a）Pre-freeze
2-3 hours, temperature are -20~-35 DEG C；（b）Low pressure dries 12-18 hours, and temperature is -20~-25 DEG C；（c）3-4 is dried in heating
Hour, temperature is -5~5 DEG C.
Natural emulsion is a kind of caoutchouc latex（Nature rubber latex, NRL）, made of natural emulsion
Latex foam is a kind of porous open material of low-density, porous open architecture make it have good pressure-reducing cushioning performance,
The advantages that compression and fatigue resisting, i.e., give a kind of soft feeling as snug as a bug in a rug when in use, latex foam is substantially all on the market at present
For bedding, and some top beddings also largely use, i.e. simmons or all kinds of mattresses and sleeping pillow etc., but its mechanics
Performance is adapted as the physical properties such as the use of seat cushion sponge, its rebound performance and is less than international standard.
Pina（Pineapple Leaf Fiber, PALF）It is a kind of extremely excellent natural plant fibre of mechanical property
Material, there is antibacterial deodourizing, good absorption property, degradable, be a kind of green natural material of health.
Pina has longitudinal crack, rough surface, there is projection, there is substantial amounts of hole in projection, forms a kind of minimum chi
Very little three-dimensional structure, its specific surface area is considerably increased, make it have good capillary effect, adsorptivity and gas permeability.
But because pina is a kind of natural plant fibre, under many circumstances because pineapple grower does not know its purposes and
The processing such as burned or filled to it, make it discarded, not only polluted environment but also wasted resource, thus it is of the invention to pina
Utilization be also a kind of protection to environment and the recycling of resource.
Addition pina can realize the recycling to resource to a certain extent in natural emulsion, while significantly strong
The mechanical property of natural emulsion matrix is changed.Because pina particulate is combined with natural emulsion, due to the specific surface area of pina
Greatly, good with natural emulsion combination, the supporting role to abscess is bigger, can play buffering effect, improve genuine milk
The rebound performance of matrix body, and strengthen the ability that foam resiles, reduce compression set value.
In addition biography instead of with sodium sulfate of polyethenoxy ether of fatty alcohol and lauryl sodium sulfate in technical solution of the present invention
The potassium oleate of system, ammonium sulfate, glycerine etc. easily cause pollution or produce dysgenic foaming agent, the more value of environmental protection to human body.
Lauryl sodium sulfate is a kind of anion surfactant, belongs to surfactant-based foaming agent, can effectively reduce liquid
Surface tension and arranged in liquid film surface electric double layer and surround air, form bubble, then by single isolated bubbles and then form bubble
Foam group, there is extremely strong foaming capacity, and biological degradability degree can degrade greatly in recovery more than 90% and avoid dirt
Dye；Sodium sulfate of polyethenoxy ether of fatty alcohol also known as be ethoxylated alkyl sulfate, fatty alcohol-ether sodium sulfate, is equally a kind of cloudy
Ionic surface active agent, it is very gentle to human body, and be more than 50 DEG C or under mildly acidic conditions decomposable asymmetric choice net, that is, water occurs
Solution, nuisanceless material is produced, thus pollution environment also can be dramatically avoided in recovery.
B accelerator MBTs are a kind of sour sulfur agents, and curing temperature is relatively low, have medium vulcanization speed
Degree, itself has preferable sulfurization, and good facilitation can be played in preparation process, and C accelerator is WI |
LLING DM or WI | any one in LLING TMTD, it is alkaline vulcanizing agent, can be produced with MBT
Raw good synergy, makes MBT reach higher activity, enhances the effect of its accelerator significantly.
The beneficial effects of the invention are as follows：The obtained degradable high-elastic main composition health green non-pollution of sponge, to environment friend
Well and to human body without ill effect；Natural emulsion and the recyclable recycling of pina, have the higher value of environmental protection；To pineapple
Inherently a kind of recycling of numb material, reduces the wasting of resources；After with the addition of pina, natural emulsion matrix it is low close
Degree sponge improves physical property, has met the international standard of seat cushion sponge；Use sodium sulfate of polyethenoxy ether of fatty alcohol and ten
The foaming agent that sodium dialkyl sulfate instead of tradition as foaming agent and have pollution property further avoids polluting；Provide one kind
The sponge of high-performance low-density, higher force performance is produced in the case where keeping the relatively low preparation cost of low-density sponge
Cavernous body；Production technology is safe and simple, environmentally safe.
Embodiment
Embodiment 1
The preparation of pina Ultramicro-powder suspension：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 15min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 75% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 9%
The preparation of the low-density sponge of environment-friendly degradable：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 100r/min, mixing time 10min, obtain
Formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 56r/min stirring being carried out to latex, is slowly added to WI | LLING DM are stirred
15min is mixed, obtains mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 36h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 300r/min, is stirred to a large amount of foaming, the even bubble of progress that then slows down stirs
Mix, speed of agitator 150r/min, mixing time 20min, obtain expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 1min and continue to stir, speed of agitator 200r/min, stirring is to being gelled
Point carries out injection molding immediately, is put under 120 DEG C of environment the 15min that shapes, obtains blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 55min, takes out washing drying, is transferred to 5 DEG C of low temperature
Pre-freeze shaping is carried out under environment, pre-freeze time 12h, pre-freeze body is obtained, pre-freeze body is freeze-dried, freeze-drying is divided into three
The individual stage：（a）Pre-freeze 2 hours, temperature are -35 DEG C；（b）Low pressure is dried 12 hours, and temperature is -25 DEG C；（c）It is small that heating dries 3
When, temperature is -5 DEG C, and freeze-drying obtains the degradable high-elastic sponge after terminating.
Materials'use number：100 parts of natural emulsion, 0.2 part of formaldehyde, 0.8 part of potassium hydroxide, 2.2 parts of sulphur, poly alkyl alcohol
0.35 part of oxygen ethene ether sodium sulfate, 3.5 parts of lauryl sodium sulfate, 2.4 parts of zinc oxide, 1.20 parts of prodan, dibenzyl two
0.8 part of sulfo-amino methanol zinc, 0.3 part of MBT, WI | 0.05 part of LLING DM and pina Ultramicro-powder 4
Part.
Embodiment 2
The preparation of pina Ultramicro-powder suspension：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 60min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 80% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 11%
The preparation of the low-density sponge of environment-friendly degradable：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 80r/min, mixing time 15min, obtain
Formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 60r/min stirring being carried out to latex, is slowly added to WI | LLING DM are stirred
10min is mixed, obtains mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 48h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 250r/min, is stirred to a large amount of foaming, the even bubble of progress that then slows down stirs
Mix, speed of agitator 120r/min, mixing time 20min, obtain expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 2min and continue to stir, speed of agitator 180r/min, stirring is to being gelled
Point carries out injection molding immediately, is put under 90 DEG C of environment the 20min that shapes, obtains blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 65min, takes out washing drying, is transferred to 5 DEG C of low temperature
Pre-freeze shaping is carried out under environment, pre-freeze time 12h, pre-freeze body is obtained, pre-freeze body is freeze-dried, freeze-drying is divided into three
The individual stage：（a）Pre-freeze 2 hours, temperature are -35 DEG C；（b）Low pressure is dried 12 hours, and temperature is -25 DEG C；（c）It is small that heating dries 3
When, temperature is -5 DEG C, and freeze-drying obtains the degradable high-elastic sponge after terminating.
Materials'use number：90 parts of natural emulsion, 0.6 part of formaldehyde, 1.1 parts of potassium hydroxide, 1.9 parts of sulphur, poly alkyl alcohol
0.85 part of oxygen ethene ether sodium sulfate, 2.5 parts of lauryl sodium sulfate, 1.6 parts of zinc oxide, 1.65 parts of prodan, dibenzyl two
1.15 parts of sulfo-amino methanol zinc, 0.55 part of MBT, WI | 0.30 part of LLING DM and pina Ultramicro-powder
1.8 part.
Embodiment 3
The preparation of pina Ultramicro-powder suspension：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 30min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 78% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 10%
The preparation of the low-density sponge of environment-friendly degradable：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 90r/min, mixing time 12min, obtain
Formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 56r/min stirring is carried out to latex, is slowly added to WI | LLING TMTD
10min is stirred, obtains mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 42h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 280r/min, is stirred to a large amount of foaming, the even bubble of progress that then slows down stirs
Mix, speed of agitator 130r/min, mixing time 18min, obtain expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 1.5min and continue to stir, speed of agitator 180r/min, stir to glue
Condensation point carries out injection molding immediately, is put under 110 DEG C of environment the 15min that shapes, obtains blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 60min, takes out washing drying, is transferred to 5 DEG C of low temperature
Pre-freeze shaping is carried out under environment, pre-freeze time 12h, pre-freeze body is obtained, pre-freeze body is freeze-dried, freeze-drying is divided into three
The individual stage：（a）Pre-freeze 2 hours, temperature are -35 DEG C；（b）Low pressure is dried 12 hours, and temperature is -25 DEG C；（c）It is small that heating dries 3
When, temperature is -5 DEG C, and freeze-drying obtains the degradable high-elastic sponge after terminating.
Materials'use number：95 parts of natural emulsion, 0.45 part of formaldehyde, 0.9 part of potassium hydroxide, 2.05 parts of sulphur, fatty alcohol
0.55 part of polyethenoxy ether sodium sulfate, 2.8 parts of lauryl sodium sulfate, 2.15 parts of zinc oxide, 1.55 parts of prodan, dibenzyl
1.0 parts of dithiocarbamates methanol zinc, 0.4 part of MBT, WI | 0.15 part of LLING TMTD and pina ultra micro
3.2 parts of powder.
Embodiment 4
The preparation of pina Ultramicro-powder suspension：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 60min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 80% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 10%
The preparation of the low-density sponge of environment-friendly degradable：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 100r/min, mixing time 10min, obtain
Formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 60r/min stirring being carried out to latex, is slowly added to WI | LLING DM are stirred
15min is mixed, obtains mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 48h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 250r/min, is stirred to a large amount of foaming, the even bubble of progress that then slows down stirs
Mix, speed of agitator 150r/min, mixing time 15min, obtain expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 1min and continue to stir, speed of agitator 200r/min, stirring is to being gelled
Point carries out injection molding immediately, is put under 100 DEG C of environment the 20min that shapes, obtains blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 65min, takes out washing drying, is transferred to 5 DEG C of low temperature
Pre-freeze shaping is carried out under environment, pre-freeze time 12h, pre-freeze body is obtained, pre-freeze body is freeze-dried, freeze-drying is divided into three
The individual stage：（a）Pre-freeze 2 hours, temperature are -35 DEG C；（b）Low pressure is dried 12 hours, and temperature is -25 DEG C；（c）It is small that heating dries 3
When, temperature is -5 DEG C, and freeze-drying obtains the degradable high-elastic sponge after terminating.
Materials'use number：100 parts of natural emulsion, 0.3 part of formaldehyde, 1.0 parts of potassium hydroxide, 1.95 parts of sulphur, fatty alcohol
0.70 part of polyethenoxy ether sodium sulfate, 3.0 parts of lauryl sodium sulfate, 1.85 parts of zinc oxide, 1.40 parts of prodan, dibenzyl
1.05 parts of dithiocarbamates methanol zinc, 0.5 part of MBT, WI | 0.25 part of LLING DM and pina Ultramicro-powder
2.8 part.
Embodiment 5
The preparation of pina Ultramicro-powder suspension：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 45min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 75% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 11%
The preparation of the low-density sponge of environment-friendly degradable：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 100r/min, mixing time 15min, obtain
Formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 60r/min stirring is carried out to latex, is slowly added to WI | LLING TMTD
15min is stirred, obtains mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 48h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 280r/min, is stirred to a large amount of foaming, the even bubble of progress that then slows down stirs
Mix, speed of agitator 120r/min, mixing time 18min, obtain expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 1min and continue to stir, speed of agitator 180-200r/min, stirring is extremely
Gel point carries out injection molding immediately, is put under 120 DEG C of environment the 15min that shapes, obtains blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 55min, takes out washing drying, is transferred to 5 DEG C of low temperature
Pre-freeze shaping is carried out under environment, pre-freeze time 12h, pre-freeze body is obtained, pre-freeze body is freeze-dried, freeze-drying is divided into three
The individual stage：（a）Pre-freeze 2 hours, temperature are -35 DEG C；（b）Low pressure is dried 12 hours, and temperature is -25 DEG C；（c）It is small that heating dries 3
When, temperature is -5 DEG C, and freeze-drying obtains the degradable high-elastic sponge after terminating.
Materials'use number：Natural emulsion 95-100 parts, formaldehyde 0.3-0.45 parts, potassium hydroxide 0.9-1.0 parts, sulphur
1.95-2.05 parts, 0.65 part of sodium sulfate of polyethenoxy ether of fatty alcohol, 2.95 parts of lauryl sodium sulfate, 1.95 parts of zinc oxide, fluorine
1.50 parts of sodium metasilicate, 1.05 parts of dibenzyl dithio amino methanol zinc, 0.45 part of MBT, WI | LLING
3.0 parts of 0.20 part of TMTD and pina Ultramicro-powder.
Above-described embodiment 1-5 is detected：
1）Water imbibition detects：Degradable high-elastic sponge sucks in water property obtained by embodiment 1-5 is more than 1200% after testing；
2）Water retention detects：Degradable high-elastic sponge water retention obtained by embodiment 1-5 is more than 550% after testing；
3）Moisture-vapor transmission detects：After testing degradable high-elastic sponge moisture-vapor transmission obtained by embodiment 1-5 45% with
On；
4）Flexibility, elasticity and restorative detection：After testing flexible 330 ° of degradable high-elastic sponge obtained by embodiment 1-5 with
It is upper and bending be even rolled into it is bar-shaped after can recover in a short time, any breakage in surface has even without folding line is left
Very good flexibility, elasticity and restorative.
Claims (7)
1. a kind of degradable high-elastic sponge, it is characterised in that the degradable high-elastic sponge preparing raw material includes following parts by weight
Number material：Natural emulsion 90-100 parts, formaldehyde 0.2-0.6 parts, potassium hydroxide 0.8-1.1 parts, sulphur 1.9-2.2 parts, fatty alcohol
Polyethenoxy ether sodium sulfate 0.35-0.85 parts, lauryl sodium sulfate 2.5-3.5 parts, zinc oxide 1.6-2.4 parts, prodan
1.20-1.65 parts, A accelerator 0.8-1.15 parts, B accelerator 0.35-0.55 parts, C accelerator 0.05-0.30 parts and additive
1.8-4 part.
2. the degradable high-elastic sponge of one kind according to claim 1, it is characterised in that prepared by the degradable high-elastic sponge
Raw material includes following parts by weight material：Natural emulsion 95-100 parts, formaldehyde 0.3-0.45 parts, potassium hydroxide 0.9-1.0 parts, sulphur
Sulphur 1.95-2.05 parts, sodium sulfate of polyethenoxy ether of fatty alcohol 0.55-0.70 parts, lauryl sodium sulfate 2.8-3.0 parts, oxidation
Zinc 1.85-2.15 parts, prodan 1.40-1.55 parts, A accelerator 1.0-1.05 parts, B accelerator 0.4-0.5 parts, C accelerator
0.15-0.25 parts and additive 2.8-3.2 parts.
3. the degradable high-elastic sponge of one kind according to claim 1 or 2, it is characterised in that the A accelerator is dibenzyl
Dithiocarbamates methanol zinc, B accelerator are MBT, and C accelerator is WI | LLING DM or WI | LLING
Any one in TMTD, the additive is pina Ultramicro-powder suspension.
4. the degradable high-elastic sponge of one kind according to claim 3, it is characterised in that the pina Ultramicro-powder suspension by
Following technique is made：
a）Pina is placed in micronizer and carries out ultramicro grinding, grinding time 15-60min, obtains pina Ultramicro-powder；
b）To step a）10% casein solution is added in gained pina Ultramicro-powder, it is phoenix to add 10% casein solution weight
The 75-80% of pears fiber crops weight, obtains mixture；
c）To step b）Gained mixture adds suitable quantity of water, is configured to the pina Ultramicro-powder suspension that total solid content is 9-11%.
5. the degradable high-elastic sponge of one kind according to claim 4, it is characterised in that the natural emulsion total solid content is big
In 65%, ammonia content 0.5-0.8%.
A kind of 6. preparation technology of degradable high-elastic sponge as claimed in claim 5, it is characterised in that the preparation technology bag
Include following preparation process：
1）Add formaldehyde into natural emulsion, it is stirred, speed of agitator 80-100r/min, mixing time 10-
15min, obtain formaldehyde-latex；
2）Sulphur, dibenzyl dithio amino methanol zinc and MBT mixed grinding are sufficiently stirred after disperseing,
Add step 1）In the formaldehyde-latex of gained, rotating speed 56-60r/min stirring is carried out to latex, is slowly added to the stirring of C accelerator
10-15min, obtain mixed latex；
3）By step 2）The mixed latex of gained is placed under room temperature condition and cures 36-48h, obtains curing latex；
4）To step 3）Sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate and pineapple are added in the curing latex of gained
Numb Ultramicro-powder suspension, foaming stirring is carried out, speed of agitator 250-300r/min, is stirred to a large amount of foaming, then slowing down, it is even to carry out
Bubble stirring, speed of agitator 120-150r/min, mixing time 15-20min, obtains expanding foam solution；
5）Zinc oxide and prodan are respectively prepared to 50% dispersion, to step 4）50% oxidation is added in the expanding foam solution of gained
Zinc dispersion, add 50% prodan dispersion after stirring 1-2min and continue to stir, speed of agitator 180-200r/min, stirring
Injection molding is carried out immediately to gel point, is put under 90-120 DEG C of environment the 15-20min that shapes, is obtained blank mould；
6）By step 5）Obtained blank mould, which is placed in 100 DEG C of boiling water baths, vulcanizes 55-65min, and taking-up is transferred under low temperature environment
Row pre-freeze is molded, and pre-freeze time 12-18h, obtains pre-freeze body, pre-freeze body is freeze-dried, after freeze-dried 17-25h
Obtain the degradable high-elastic sponge.
7. the degradable high-elastic sponge of one kind according to claim 6, it is characterised in that step 6）The low temperature environment is 5-
10 DEG C, the freeze-drying is divided into three phases：（a）Pre-freeze 2-3 hours, temperature are -20~-35 DEG C；（b）Low pressure dries 12-
18 hours, temperature was -20~-25 DEG C；（c）3-4 hours are dried in heating, and temperature is -5~5 DEG C.
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| CN108330566A (en) * | 2018-02-07 | 2018-07-27 | 湖州科博信息科技有限公司 | A kind of degradable high-elasticity fiber and its preparation process |
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