CN109224633A - A kind of environment-friendly type filter bag of doping vario-property starch and preparation method thereof - Google Patents
A kind of environment-friendly type filter bag of doping vario-property starch and preparation method thereof Download PDFInfo
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- CN109224633A CN109224633A CN201811311085.XA CN201811311085A CN109224633A CN 109224633 A CN109224633 A CN 109224633A CN 201811311085 A CN201811311085 A CN 201811311085A CN 109224633 A CN109224633 A CN 109224633A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
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Abstract
The invention discloses a kind of environment-friendly type filter bag of doping vario-property starch, the raw material including following parts by weight: 42-48 parts of polyethylene, 15-25 parts of modified starch, 5-10 parts of Plant Powder, 6-10 parts of graphene oxide, 2-5 parts of pyrophyllite powder, 2-6 parts of fiber composition, 20-30 parts of modified epoxy, 2-6 parts of stalk cellulose, 25-35 parts of ethyl alcohol, 10-20 parts of mandruka, 30-40 parts of stainless steel fibre.The present invention is using polyethylene collocation modified starch as base-material, modified starch and polyethylene associated, it is greatly improved the degradation property of material, epoxy resin is by modified simultaneously, degradation property is also improved, modified using tapioca during modified starch is modified, raw material is environmentally protective, while the performance of filter cloth can be improved in Plant Powder, the graphene oxide being added.
Description
Technical field
The present invention relates to filter bag technical fields, and in particular to a kind of environment-friendly type filter bag of doping vario-property starch and its preparation side
Method.
Background technique
Filter bag has excellent stable chemical performance and heat resistance, is the generation applied to peak performance in filtrate industry
The kind of performance most significant end in table and all typical filter materials, filter efficiency and in terms of reach compared with
High level.Common filter material has PE, PP, PTFE, PMIA, NMO etc.；Filter bag is the key that in sack cleaner operational process
Part, usual cylinder type filter bag are vertically hung in deduster, the fabric and design of filter bag should pursue as far as possible high efficiency filter, easily
In dust removing and durable effect, in pulse and air-tank type pulse dust collector, dust is attached to the outer surface of filter bag.
When dusty gas passes through deduster, dust is trapped in the outer surface of filter bag, and clean gas is entered inside filter bag by filtrate,
Cage inside filter bag is used to support filter bag, prevents filter bag from collapsing, while it facilitates the removing and redistribution of dirt cake；Filter material
Heatproof, strong acid, weak acid, highly basic, weak base, grease type, aromatics, alcohol ethers, organic solution, microorganism, therefore filter bag has very
Important application.
Existing filter bag is all made of the preparation of the materials such as PE, PP, and not degradable, environmental-protecting performance is poor, does not meet environmentally protective want
It asks, existing Chinese patent literature (publication number: CN106582124A) discloses a kind of production technology of dust removal and filtration bag, described
Filter bag is compounded to form by glass fiber filter cloth, stainless steel fibre sintering felt and filter membrane, wherein production filter membrane, institute
Stating filter membrane each component mass parts is 32 parts of polyethylene, 14 parts of cellulose acetate, 18 parts of ammonium hydrogen carbonate, 45 parts of Cineole, ethyl alcohol
50 parts, 16 parts of dodecyl sodium sulfate, 22 parts of epoxy resin do not have though the document has certain feature of environmental protection using raw material
Degradation property.
Chinese patent literature (publication number: CN106345193B) discloses a kind of production technology of dust removal and filtration bag, includes
Following steps: a, by polyphenylene sulfide and aramid fiber by shredding, mixing, combing and cross lapping be made surface density be 170~
180g/m2Base cloth layer；B, base cloth layer is passed through to the grieshoch and impurity that surface is removed in common dust removal machine；C, it weighs required
Raw material；D, it is added in common blender, lotion is made；E, by spraying drying integral machine for Emulsion Spraying in base fabric
On layer, the emulsion layer for drying formation is protective layer；F, bag body, bag head and bag bottom are sewn to one by common sewing machine
It rises, is processed into PPS superfine fibre needle thorn filter bag, the filter bag degradation property is still poor.
Summary of the invention
The purpose of the present invention is to provide environment-friendly type filter bags of a kind of doping vario-property starch and preparation method thereof, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of environment-friendly type filter bag of doping vario-property starch, the raw material including following parts by weight:
42-48 parts of polyethylene, 15-25 parts of modified starch, 5-10 parts of Plant Powder, 6-10 parts of graphene oxide, pyrophyllite powder 2-5
Part, 2-6 parts of fiber composition, 20-30 parts of modified epoxy, 2-6 parts of straw fiber element, 25-35 parts of ethyl alcohol, mandruka
10-20 parts, 30-40 parts of stainless steel fibre.
Be as further scheme of the invention: the environment-friendly type filter bag of the doping vario-property starch includes following parts by weight
Raw material:
45-48 parts of polyethylene, 20-25 parts of modified starch, 7-10 parts of Plant Powder, 8-10 parts of graphene oxide, pyrophyllite powder 3-5
Part, 4-6 parts of fiber composition, 25-30 parts of modified epoxy, 3-6 parts of straw fiber element, 30-35 parts of ethyl alcohol, mandruka
15-20 parts, 35-40 parts of stainless steel fibre.
Be as further scheme of the invention: the environment-friendly type filter bag of the doping vario-property starch includes following parts by weight
Raw material:
45 parts of polyethylene, 20 parts of modified starch, 7.5 parts of Plant Powder, 8 parts of graphene oxide, 3.5 parts of pyrophyllite powder, fiber combinations
4 parts of object, 25 parts of modified epoxy, straw fiber plain 4 parts, 30 parts of ethyl alcohol, 15 parts of mandruka, 35 parts of stainless steel fibre.
Be as further scheme of the invention: the preparation method of the modified starch is by 100-120 portions of tapiocas
It is dissolved in 160-200 parts of PEG rilanit specials, 20-30 parts of montmorillonites is then added, at 100-120 DEG C, water-bath 2-5h, with
After dry, pulverize, obtain pre- starch, pre- starch is added in 50-90 parts of chitosan solutions, glacial acetic acid is then added
PH to 5.0-6.0 is adjusted, 5-9 parts of ammonium persulfates, 1-3 parts of divinylbenzenes are then added, it is then dry after reacting 30-40min
Dry, grinding.
Be as further scheme of the invention: the chitosan solution using chitosan, 90% hydrochloric acid of mass fraction according to
Weight ratio 1:3 mixed preparing.
Be as further scheme of the invention: the graphene oxide is that graphene uses the concentrated sulfuric acid to carry out oxidation 20-
30min then uses hydrogen peroxide oxidation 10-20min again.
Be as further scheme of the invention: the fiber composition is aramid fiber, polyester fiber according to weight ratio
2:1 is combined.
Be as further scheme of the invention: the aramid fiber, polyester fiber partial size are 2-10mm.
Be as further scheme of the invention: the preparation method of the modified epoxy is by epoxy resin, poly- pair
Stupid dioctyl phthalate/tetramethylene adipate (PBAT) is according to weight ratio (6-12): 1 is mixed, and epoxy resin, poly- pair is then added
Stupid dioctyl phthalate/tetramethylene adipate total amount 8-14% talcum powder is then fed into parallel double-screw pelletizer sufficiently mixed
Refining, mixture temperature are 150-170 DEG C, and mixing 35-45min is then squeezed out again, and extrusion temperature is 170 DEG C.
The present invention also provides a kind of methods of environment-friendly type filter bag for preparing doping vario-property starch, comprising the following steps:
Step 1, by polyethylene, modified starch, Plant Powder, graphene oxide, pyrophyllite powder, fiber composition, straw fiber
Element, ethyl alcohol are successively mixed, and ultrasonic disperse 20-30min is then carried out, spare；
Step 2, modified epoxy is stretched, is widened, it is smooth film is made, then the spare solution of step 1 is coated in
It is then 2-4MPa in pressure on film, temperature is at 100-200 DEG C again into extruding, it is then compound with mandruka progress again,
Combined temp is 200-220 DEG C, forms filter membrane, then compound to get environment-friendly type filter bag of the invention with stainless steel fibre again.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention, as base-material, modified starch and polyethylene associated, is greatly improved material using polyethylene collocation modified starch
Degradation property, while epoxy resin, by modified, degradation property is also improved, and uses para arrowroot during modified starch is modified
Powder is modified, and raw material is environmentally protective, while the performance of filter cloth can be improved in Plant Powder, the graphene oxide being added, from embodiment 1-3
And obtained in comparative example 1-2, for the embodiment of the present invention 3 relative to comparative example 2, Air permenbility improves 12L/m2.s, filter efficiency mentions
High by 2.7%, degradation rate improves 43%, it is known that material of the present invention has good degradation effect.
Specific embodiment
Combined with specific embodiments below, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1:
A kind of environment-friendly type filter bag of the doping vario-property starch of the present embodiment, the raw material including following parts by weight:
42 parts of polyethylene, 15 parts of modified starch, 5 parts of Plant Powder, 6 parts of graphene oxide, 2 parts of pyrophyllite powder, fiber composition 2
Part, 20 parts of modified epoxy, straw fiber plain 2 parts, 25 parts of ethyl alcohol, 10 parts of mandruka, 30 parts of stainless steel fibre.
The preparation method of the modified starch of the present embodiment is that 100 portions of tapiocas are dissolved in 160 parts of PEG rilanit specials
In, 20 parts of montmorillonites are then added, at 100 DEG C, water-bath 2h is subsequently dried, pulverizes, and pre- starch is obtained, by pre- starch
It is added in 50 parts of chitosan solutions, then adds glacial acetic acid and adjust pH to 5.0, then add 5 parts of ammonium persulfates, 1 part
Divinylbenzene is subsequently dried, grinds after reacting 30min.
The chitosan solution of the present embodiment is using chitosan, 90% hydrochloric acid of mass fraction according to weight ratio 1:3 mixed preparing.
The graphene oxide of the present embodiment is that graphene uses the concentrated sulfuric acid to carry out oxidation 20min, then uses hydrogen peroxide again
Aoxidize 10min.
The fiber composition of the present embodiment is aramid fiber, polyester fiber is combined according to weight ratio 2:1.
The aramid fiber, polyester fiber partial size of the present embodiment are 2mm.
The preparation method of the modified epoxy of the present embodiment is by epoxy resin, gathers to stupid dioctyl phthalate/adipic acid fourth two
Alcohol ester (PBAT) is mixed according to weight ratio 6:1, and epoxy resin is then added, is poly- to stupid dioctyl phthalate/tetramethylene adipate
The talcum powder of total amount 8% is then fed into parallel double-screw pelletizer and is sufficiently kneaded, and mixture temperature is 150 DEG C, mixing
35min is then squeezed out again, and extrusion temperature is 170 DEG C.
A kind of method of the environment-friendly type filter bag for preparing doping vario-property starch of the present embodiment, comprising the following steps:
Step 1, by polyethylene, modified starch, Plant Powder, graphene oxide, pyrophyllite powder, fiber composition, straw fiber
Element, ethyl alcohol are successively mixed, and ultrasonic disperse 30min is then carried out, spare；
Step 2, modified epoxy is stretched, is widened, it is smooth film is made, then the spare solution of step 1 is coated in
It is then 4MPa in pressure, temperature is at 200 DEG C again into extruding, then carries out compound, compound temperature with mandruka again on film
Degree is 200 DEG C, forms filter membrane, then compound to get environment-friendly type filter bag of the invention with stainless steel fibre again.
Embodiment 2:
A kind of environment-friendly type filter bag of the doping vario-property starch of the present embodiment, the raw material including following parts by weight:
48 parts of polyethylene, 25 parts of modified starch, 10 parts of Plant Powder, 10 parts of graphene oxide, 5 parts of pyrophyllite powder, fiber composition 6
Part, 30 parts of modified epoxy, straw fiber plain 6 parts, 35 parts of ethyl alcohol, 20 parts of mandruka, 40 parts of stainless steel fibre.
The preparation method of the modified starch of the present embodiment is that 120 portions of tapiocas are dissolved in 200 parts of PEG rilanit specials
In, 30 parts of montmorillonites are then added, at 120 DEG C, water-bath 5h is subsequently dried, pulverizes, and pre- starch is obtained, by pre- starch
It is added in 90 parts of chitosan solutions, then adds glacial acetic acid and adjust pH to 6.0, then add 9 parts of ammonium persulfates, 3 parts
Divinylbenzene is subsequently dried, grinds after reacting 40min.
The chitosan solution of the present embodiment is using chitosan, 90% hydrochloric acid of mass fraction according to weight ratio 1:3 mixed preparing.
The graphene oxide of the present embodiment is that graphene uses the concentrated sulfuric acid to carry out oxidation 30min, then uses hydrogen peroxide again
Aoxidize 20min.
The fiber composition of the present embodiment is aramid fiber, polyester fiber is combined according to weight ratio 2:1.
The aramid fiber, polyester fiber partial size of the present embodiment are 10mm.
The preparation method of the modified epoxy of the present embodiment is by epoxy resin, gathers to stupid dioctyl phthalate/adipic acid fourth two
Alcohol ester (PBAT) is mixed according to weight ratio 12:1, and epoxy resin is then added, is poly- to stupid dioctyl phthalate/tetramethylene adipate
The talcum powder of total amount 14% is then fed into parallel double-screw pelletizer and is sufficiently kneaded, and mixture temperature is 170 DEG C, mixing
45min is then squeezed out again, and extrusion temperature is 170 DEG C.
A kind of method of the environment-friendly type filter bag for preparing doping vario-property starch of the present embodiment, comprising the following steps:
Step 1, by polyethylene, modified starch, Plant Powder, graphene oxide, pyrophyllite powder, fiber composition, straw fiber
Element, ethyl alcohol are successively mixed, and ultrasonic disperse 30min is then carried out, spare；
Step 2, modified epoxy is stretched, is widened, it is smooth film is made, then the spare solution of step 1 is coated in
It is then 4MPa in pressure, temperature is at 200 DEG C again into extruding, then carries out compound, compound temperature with mandruka again on film
Degree is 220 DEG C, forms filter membrane, then compound to get environment-friendly type filter bag of the invention with stainless steel fibre again.
Embodiment 3:
A kind of environment-friendly type filter bag of the doping vario-property starch of the present embodiment, the raw material including following parts by weight:
45 parts of polyethylene, 20 parts of modified starch, 7.5 parts of Plant Powder, 8 parts of graphene oxide, 3.5 parts of pyrophyllite powder, fiber combinations
4 parts of object, 25 parts of modified epoxy, straw fiber plain 4 parts, 30 parts of ethyl alcohol, 15 parts of mandruka, 35 parts of stainless steel fibre.
The preparation method of the modified starch of the present embodiment is that 110 portions of tapiocas are dissolved in 180 parts of PEG rilanit specials
In, 25 parts of montmorillonites are then added, at 110 DEG C, water-bath 3.5h is subsequently dried, pulverizes, and obtains pre- starch, will form sediment in advance
Powder is added in 70 parts of chitosan solutions, is then added glacial acetic acid and is adjusted pH to 5.5, then adds 7 parts of ammonium persulfates, 2
Part divinylbenzene is subsequently dried, grinds after reacting 35min.
The chitosan solution of the present embodiment is using chitosan, 90% hydrochloric acid of mass fraction according to weight ratio 1:3 mixed preparing.
The graphene oxide of the present embodiment is that graphene uses the concentrated sulfuric acid to carry out oxidation 25min, then uses hydrogen peroxide again
Aoxidize 15min.
The fiber composition of the present embodiment is aramid fiber, polyester fiber is combined according to weight ratio 2:1.
The aramid fiber, polyester fiber partial size of the present embodiment are 6mm.
The preparation method of the modified epoxy of the present embodiment is by epoxy resin, gathers to stupid dioctyl phthalate/adipic acid fourth two
Alcohol ester (PBAT) is mixed according to weight ratio 9:1, and epoxy resin is then added, is poly- to stupid dioctyl phthalate/tetramethylene adipate
The talcum powder of total amount 11% is then fed into parallel double-screw pelletizer and is sufficiently kneaded, and mixture temperature is 160 DEG C, mixing
40min is then squeezed out again, and extrusion temperature is 170 DEG C.
A kind of method of the environment-friendly type filter bag for preparing doping vario-property starch of the present embodiment, comprising the following steps:
Step 1, by polyethylene, modified starch, Plant Powder, graphene oxide, pyrophyllite powder, fiber composition, straw fiber
Element, ethyl alcohol are successively mixed, and ultrasonic disperse 25min is then carried out, spare；
Step 2, modified epoxy is stretched, is widened, it is smooth film is made, then the spare solution of step 1 is coated in
It is then 3MPa in pressure, temperature is at 150 DEG C again into extruding, then carries out compound, compound temperature with mandruka again on film
Degree is 210 DEG C, forms filter membrane, then compound to get environment-friendly type filter bag of the invention with stainless steel fibre again.
Comparative example 1:
Essentially identical with the material and preparation method of embodiment 3, having only is not both to be not added with modified starch.
Comparative example 2:
It is disclosed using Chinese patent literature (publication number: CN106345193B) and is implemented in a kind of production technology of dust removal and filtration bag
1 raw material of example and method.
It is as follows that embodiment 1-3 and comparative example 1-2 obtains filter bag the performance test results
It is obtained from embodiment 1-3 and comparative example 1-2, for the embodiment of the present invention 3 relative to comparative example 2, Air permenbility improves 12L/
m2.s, filter efficiency improves 2.7%, and degradation rate improves 43%, it is known that material of the present invention has good degradation effect.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of environment-friendly type filter bag of doping vario-property starch, which is characterized in that the raw material including following parts by weight:
42-48 parts of polyethylene, 15-25 parts of modified starch, 5-10 parts of Plant Powder, 6-10 parts of graphene oxide, pyrophyllite powder 2-5
Part, 2-6 parts of fiber composition, 20-30 parts of modified epoxy, 2-6 parts of straw fiber element, 25-35 parts of ethyl alcohol, mandruka
10-20 parts, 30-40 parts of stainless steel fibre.
2. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 1, which is characterized in that the doping vario-property
The environment-friendly type filter bag of starch includes the raw material of following parts by weight:
45-48 parts of polyethylene, 20-25 parts of modified starch, 7-10 parts of Plant Powder, 8-10 parts of graphene oxide, pyrophyllite powder 3-5
Part, 4-6 parts of fiber composition, 25-30 parts of modified epoxy, 3-6 parts of straw fiber element, 30-35 parts of ethyl alcohol, mandruka
15-20 parts, 35-40 parts of stainless steel fibre.
3. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 2, which is characterized in that the doping vario-property
The environment-friendly type filter bag of starch includes the raw material of following parts by weight:
45 parts of polyethylene, 20 parts of modified starch, 7.5 parts of Plant Powder, 8 parts of graphene oxide, 3.5 parts of pyrophyllite powder, fiber combinations
4 parts of object, 25 parts of modified epoxy, straw fiber plain 4 parts, 30 parts of ethyl alcohol, 15 parts of mandruka, 35 parts of stainless steel fibre.
4. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 1, which is characterized in that the modified starch
Preparation method be 100-120 portion tapiocas are dissolved in 160-200 part PEG rilanit specials, then addition 20-30 parts cover
De- soil, at 100-120 DEG C, water-bath 2-5h is subsequently dried, pulverizes, and obtains pre- starch, and pre- starch is added to 50-90
In part chitosan solution, then adds glacial acetic acid and adjust pH to 5.0-6.0, then add 5-9 parts of ammonium persulfates, 1-3 parts
Divinylbenzene is subsequently dried, grinds after reacting 30-40min.
5. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 4, which is characterized in that the chitosan is molten
Liquid is using chitosan, 90% hydrochloric acid of mass fraction according to weight ratio 1:3 mixed preparing.
6. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 1, which is characterized in that the graphite oxide
Alkene is that graphene uses the concentrated sulfuric acid to carry out oxidation 20-30min, then uses hydrogen peroxide oxidation 10-20min again.
7. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 1, which is characterized in that the fiber combinations
Object is aramid fiber, polyester fiber is combined according to weight ratio 2:1.
8. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 7, which is characterized in that the aramid fiber is fine
Dimension, polyester fiber partial size are 2-10mm.
9. a kind of environment-friendly type filter bag of doping vario-property starch according to claim 1, which is characterized in that the modified epoxy
The preparation method of resin is by epoxy resin, gathers to stupid dioctyl phthalate/tetramethylene adipate (PBAT) according to weight ratio (6-12):
1 is mixed, and epoxy resin is then added, is poly- to stupid dioctyl phthalate/tetramethylene adipate total amount 8-14% talcum powder, then
It being sent in parallel double-screw pelletizer and is sufficiently kneaded, mixture temperature is 150-170 DEG C, and mixing 35-45min is then squeezed out again,
Extrusion temperature is 170 DEG C.
10. a kind of method for preparing the environment-friendly type filter bag of doping vario-property starch as described in claim any one of 1-9, feature exist
In, comprising the following steps:
Step 1, by polyethylene, modified starch, Plant Powder, graphene oxide, pyrophyllite powder, fiber composition, straw fiber
Element, ethyl alcohol are successively mixed, and ultrasonic disperse 20-30min is then carried out, spare；
Step 2, modified epoxy is stretched, is widened, it is smooth film is made, then the spare solution of step 1 is coated in
It is then 2-4MPa in pressure on film, temperature is at 100-200 DEG C again into extruding, it is then compound with mandruka progress again,
Combined temp is 200-220 DEG C, forms filter membrane, then compound to get environment-friendly type filter bag of the invention with stainless steel fibre again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811311085.XA CN109224633A (en) | 2018-11-06 | 2018-11-06 | A kind of environment-friendly type filter bag of doping vario-property starch and preparation method thereof |
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| CN201811311085.XA CN109224633A (en) | 2018-11-06 | 2018-11-06 | A kind of environment-friendly type filter bag of doping vario-property starch and preparation method thereof |
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| CN108329529A (en) * | 2018-02-10 | 2018-07-27 | 谢子栋 | A kind of complete biodegradable copolymerization extrusion sheet raw material and product producing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1167589A1 (en) * | 1999-03-11 | 2002-01-02 | Japan Tobacco Inc. | Biodegradable cellulose acetate constructions and tobacco filter |
| CN105968743A (en) * | 2016-03-01 | 2016-09-28 | 安徽猛牛彩印包装有限公司 | Antibacterial polylactic acid and starch compound fully-degradable plastic film and manufacturing method thereof |
| CN105969257A (en) * | 2016-07-04 | 2016-09-28 | 谢庚辰 | High-strength water-resistant starch modified polyvinyl alcohol adhesive for wood and preparation method thereof |
| CN106582124A (en) * | 2016-11-25 | 2017-04-26 | 浙江绿净环保科技有限公司 | Production process for dedusting filter bag |
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