CN109734947A - A kind of complete biodegradable stalk suction pipe and preparation method thereof - Google Patents
A kind of complete biodegradable stalk suction pipe and preparation method thereof Download PDFInfo
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- CN109734947A CN109734947A CN201910063921.5A CN201910063921A CN109734947A CN 109734947 A CN109734947 A CN 109734947A CN 201910063921 A CN201910063921 A CN 201910063921A CN 109734947 A CN109734947 A CN 109734947A
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Abstract
The invention discloses a kind of complete biodegradable stalk suction pipes and preparation method thereof, belong to suction pipe preparation technical field.The present invention will be impregnated in cellulose solution by pretreated stalk pipe, then take out in air gelation to form cellulose colloid film in stalk pipe surface, then stalk pipe is placed in distilled water and carries out exchange of solvent, stalk suction pipe is obtained after natural air drying；The suction pipe product of degradable is obtained after the connecting component connection prepared by 3D printing.Wherein, cellulose solution includes the mixed solvent of native cellulose pulp and dissolution native cellulose pulp, and mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Preparation process of the present invention is simple, and suction pipe obtained can all be degraded, not can cause environmental pollution using safe.
Description
Technical field
The present invention relates to suction pipe preparation technical fields, and in particular to a kind of complete biodegradable stalk suction pipe and its preparation side
Method.
Background technique
Existing Dispette generally uses food-grade PP (polypropylene) to make, and this straw materials property stabilization is not easy to drop
Solution, and due to small in size, light weight, the reasons such as distribution relatively dispersion make suction pipe be not easy to be recovered, to form environmental pollution, very
It can enter in ocean to many plastic suction pipes, be eaten by mistake and damaged by marine organisms.In addition, plastic suction pipe is in process of production
Some additives can be added, will lead to its residual for containing heavy metal or plasticiser, be unfavorable for environmental protection.
Develop fully biodegradable, very necessary using safe suction pipe.The degradable beverage in the part occurred at present is inhaled
Pipe, having with stalk, glutinous rice flour, rice starch, tapioca starch etc. is that raw material is produced, need in preparation process by with plastics
Suction pipe it is identical it is molded prepared, composition of raw materials is complicated, and needs special design and production mold.Moreover,
It also needs to crush stalk in preparation process and soften, and be blended again with foodstuff glue, glutinous rice flour and resin-oatmeal after delignification, also need to add
Add waterproofing agent, preparation process is more complicated.
Summary of the invention
The purpose of the present invention is to provide a kind of complete biodegradable stalk suction pipes and preparation method thereof, to solve existing suction pipe
It can not degrade, incomplete and preparation process complexity problem of degrading.
The technical scheme to solve the above technical problems is that
A kind of preparation method of complete biodegradable stalk suction pipe, comprising: will be molten in cellulose by pretreated stalk pipe
It is impregnated in liquid, then takes out in air gelation to form cellulose colloid film in stalk pipe surface, then stalk pipe is placed in
Solvent is exchanged in distilled water, obtains stalk suction pipe after air-drying.
The present invention directly prepares biodegradable holocellulos suction pipe using its tubular structure, fills using stalk as raw material
Divide and the natural tubulose of stalk and cellulose feature as main component is utilized, can both use, and no longer need to directly as suction pipe
Machine-shaping, since stalk itself is mainly cellulose components, good thermal stability, additionally it is possible to it is degradable, avoid environment
Pollution.Also, stalk abundance, it is at low cost.The present invention is by carrying out the acquisition of delignification's bleaching to stalk pipe
Tubular fiber element as skeleton, then by impregnating stalk pipe in cellulose solution, so that part stalk cellulose dissolves
And it is attached to cellulose solution uniformly on stalk pipe, solvent is carried out using gelation in air and in distilled water
Exchange is so that stalk pipe is cellulose regenerated, to obtain the tubular part of intensity and the good holocellulos suction pipe of toughness.This hair
Bright suction pipe color obtained is milky, and toughness, intensity, waterproofness meet requirement.In addition, the present invention is also with biology drop
Solution polyphosphazene polymer lactic acid is raw material, and the connecting component of suction pipe is prepared by 3D printing, and connection holocellulos tubular part obtains entirely
Biodegradable suction pipe.Any moulding that suction pipe can be realized by 3D printing connecting component, has a wide range of application.
Further, in preferred embodiments of the present invention, the concentration of above-mentioned cellulose solution is 1-5wt%.
Further, in preferred embodiments of the present invention, above-mentioned cellulose solution includes native cellulose pulp and molten
The mixed solvent of native cellulose pulp is solved, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water, and dimethyl is sub-
The mass ratio of sulfone, tetrabutylammonium hydroxide and water is (6-10): (0.8-1.2): 1.
Further, in preferred embodiments of the present invention, above-mentioned native cellulose pulp be cotton pulp, wood pulp, bamboo pulp and
One of straw pulp or multiple combinations.
The present invention prepares cellulose solution and native cellulose pulp is also used to prepare, and pure natural substance is degradable, keeps away
Exempt from the discarded rear non-degradable substance residual of suction pipe.The preferred cotton pulp of the present invention, wood pulp, bamboo pulp and straw pulp prepare cellulose solution,
Low cost easily obtains.More preferably straw pulp can preferably dissolve stalk cellulose and be attached on stalk pipe.
Further, in preferred embodiments of the present invention, the pre-treatment step of stalk pipe include: by the stalk of harvesting into
Row sunning leaves tubular portion after stalk is removed section after dry, will obtain stalk pipe and carries out delignification bleaching, until stalk
Pipe becomes white, is then washed with distilled water to filtrate and is in neutrality, then drying to constant weight at 90-105 DEG C by stalk pipe.
The present invention is bleached by delignification, forms micropore and cellulose solution is filled, improve the strong of suction pipe
Toughness and aesthetics make stalk pipe guarantee that itself is indeformable while drying by control drying temperature for 90-105 DEG C,
Be conducive to the holding of stalk tube shape.
Further, in preferred embodiments of the present invention, stalk pipe is carried out to the detailed process of delignification bleaching
It include: to impregnate stalk pipe in the mixed aqueous solution of glacial acetic acid and sodium chlorite；Wherein, mole of glacial acetic acid and sodium chlorite
Than for (1.2-1.5): 1.
Further, in preferred embodiments of the present invention, stalk pipe is carried out to the detailed process of delignification bleaching
It include: to impregnate stalk pipe in the NaOH aqueous solution or KOH aqueous solution of 10-20wt% and under 0.15-1.5MPa pressure.
Further, in preferred embodiments of the present invention, the time that stalk pipe impregnates in cellulose solution is 0.5-
1h, the time condensed in air are 2.5-3.5h, are placed 2-4 days in distilled water.
Further, in preferred embodiments of the present invention, above-mentioned preparation method further include: pass through by raw material of polylactic acid
The connecting component of 3D printing method preparation connection stalk suction pipe, or cellulose solution is used to pass through 3D printing method system for raw material
The connecting component of standby stalk suction pipe.
The present invention passes through the connecting component of 3D printing stalk suction pipe with polylactic acid long filament or cellulose solution, can be completely biological
Degradation, the obtained all degradation materials of suction pipe finished product are realized really environmentally protective.3D printing technique can be realized various make
The connecting component of type, facilitates beauty.
The complete biodegradable stalk suction pipe that above-mentioned preparation method is prepared.
The invention has the following advantages:
The tubulose feature that the present invention makes full use of stalk natural obtains cellulose tubular armature by delignification and bleaching,
Holocellulos suction pipe is made in simple technique at normal temperatures and pressures, in conjunction with 3D printing biodegradated polymer materal polylactic acid system
The connecting component of standby suction pipe, is simply assembled and is obtained using safe complete biodegradable suction pipe, preparation process is simple.The present invention
The tube-like condition that stalk itself has is directlyed adopt, without carrying out crushing and processing to raw material, without being molded.This hair
The bright mixed solvent with dimethyl sulfoxide, tetrabutylammonium hydroxide and water dissolves native cellulose pulp at room temperature, obtained
Cellulose solution can be used continuously, and avoid wasting.The tubular portion of stalk suction pipe of the invention is holocellulos component, interconnecting piece
Part is prepared by polylactic acid long filament or cellulose solution through 3D printing, and 2 kinds of materials are biodegradable, and suction pipe is made using safe
It will not bring post-processing difficult because difficult to degrade after and pollute the environment.
Detailed description of the invention
Fig. 1 is the photo of stalk suction pipe sample made from the embodiment of the present invention；
Fig. 2 is the scanning electron microscope (SEM) photograph of the cross section of stalk pipe made from the embodiment of the present invention；
Fig. 3 is the surface sweeping electron microscope of the outer surface of stalk pipe made from the embodiment of the present invention；
Fig. 4 is the extension test result figure of stalk pipe and stalk raw material made from the embodiment of the present invention.
Specific embodiment
Principles and features of the present invention are described with reference to embodiments, the given examples are served only to explain the present invention,
It is not intended to limit the scope of the present invention.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer suggests
Condition carries out.Reagents or instruments used without specified manufacturer is the conventional products that can be obtained by commercially available purchase.
Embodiment 1:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the mixed aqueous solution of glacial acetic acid and sodium chlorite that molar ratio is 1.5:1,
Until stalk pipe becomes white.Then it is washed with distilled water to filtrate to be in neutrality, then stalk pipe is dried to perseverance at 105 DEG C
Weight.
(2) stalk pipe is prepared
1h will be impregnated in the cellulose solution that concentration is 5wt% by pretreated stalk pipe, then taken out in air
Middle condensation 3.5h is to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 4 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 10:1.2:1.Native cellulose pulp is cotton pulp.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 2:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the mixed aqueous solution of glacial acetic acid and sodium chlorite that molar ratio is 1.2:1,
Until stalk pipe becomes white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 90 DEG C by stalk pipe.
(2) stalk pipe is prepared
0.5h will be impregnated in the cellulose solution that concentration is 1wt% by pretreated stalk pipe, then taken out in sky
2.5h is condensed in gas to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water places exchange within 2 days it is molten
Agent obtains stalk suction pipe after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose slurry
The mixed solvent of the dregs of rice, mixed solvent include dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutyl hydrogen-oxygen
The mass ratio for changing ammonium and water is 6:0.8:1.Native cellulose pulp is bamboo pulp.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method with cellulose solution.
Embodiment 3:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the mixed aqueous solution of glacial acetic acid and sodium chlorite that molar ratio is 1.4:1,
Until stalk pipe becomes white.Then it is washed with distilled water to filtrate to be in neutrality, then stalk pipe is dried to perseverance at 100 DEG C
Weight.
(2) stalk pipe is prepared
45min will be impregnated in the cellulose solution that concentration is 3wt% by pretreated stalk pipe, then taken out in sky
3h is condensed in gas to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 3 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 8:1:1.Native cellulose pulp is straw pulp.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 4:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the NaOH aqueous solution of 10wt% and under 0.15MPa pressure, until stalk
Pipe becomes white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 90 DEG C by stalk pipe.
(2) stalk pipe is prepared
0.5h will be impregnated in the cellulose solution that concentration is 2wt% by pretreated stalk pipe, then taken out in sky
3h is condensed in gas to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 3 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 8:1:1.Native cellulose pulp is the bamboo pulp and straw pulp of any ratio.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 5:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the NaOH aqueous solution of 20wt% and under 1.5MPa pressure, until stalk
Pipe becomes white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 105 DEG C by stalk pipe.
(2) stalk pipe is prepared
1h will be impregnated in the cellulose solution that concentration is 3wt% by pretreated stalk pipe, then taken out in air
Middle condensation 3.5h is to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 4 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 10:1:1.Native cellulose pulp is the cotton pulp and straw pulp of any ratio.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 6:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the NaOH aqueous solution of 15wt% and under 1MPa pressure, until stalk pipe
Become white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 100 DEG C by stalk pipe.
(2) stalk pipe is prepared
0.5h will be impregnated in the cellulose solution that concentration is 3wt% by pretreated stalk pipe, then taken out in sky
3h is condensed in gas to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 3 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 7:0.8:1.Native cellulose pulp is cotton pulp, wood pulp and the bamboo pulp of any ratio.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 7:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the KOH aqueous solution of 10wt% and under 0.15MPa pressure, until stalk
Pipe becomes white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 105 DEG C by stalk pipe.
(2) stalk pipe is prepared
0.5h will be impregnated in the cellulose solution that concentration is 5wt% by pretreated stalk pipe, then taken out in sky
3h is condensed in gas to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 3 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 6:0.8:1.Native cellulose pulp is cotton pulp, wood pulp, bamboo pulp and the straw pulp of any ratio.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 8:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the KOH aqueous solution of 20wt% and under 1.5MPa pressure, until stalk pipe
Become white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 105 DEG C by stalk pipe.
(2) stalk pipe is prepared
1h will be impregnated in the cellulose solution that concentration is 5wt% by pretreated stalk pipe, then taken out in air
Middle condensation 3.5h is to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 2 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 9:1.2:1.Native cellulose pulp is straw pulp.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
Embodiment 9:
The preparation method of the complete biodegradable stalk suction pipe of the present embodiment, comprising:
(1) stalk pretreatment
The stalk of harvesting is dried, leaves tubular portion after stalk is removed section after dry.It will obtain the progress of stalk pipe
Delignification and bleaching impregnate stalk pipe in the KOH aqueous solution of 16wt% and under 0.5MPa pressure, until stalk pipe
Become white.Then it is washed with distilled water to filtrate to be in neutrality, then drying to constant weight at 95 DEG C by stalk pipe.
(2) stalk pipe is prepared
45min will be impregnated in the cellulose solution that concentration is 3wt% by pretreated stalk pipe, then taken out in sky
3h is condensed in gas to form cellulose colloid in stalk pipe surface, then stalk pipe is placed in distilled water and places 3 days exchange solvents,
Stalk suction pipe is obtained after natural air drying.Wherein, cellulose solution includes native cellulose pulp and dissolution native cellulose pulp
Mixed solvent, mixed solvent includes dimethyl sulfoxide, tetrabutylammonium hydroxide and water.Dimethyl sulfoxide, tetrabutylammonium hydroxide
The mass ratio of ammonium and water is 8:1:1.Native cellulose pulp is straw pulp.
(3) stalk connecting component is prepared
The connecting component of connection stalk suction pipe is prepared by 3D printing method using polylactic acid as raw material.
The stalk suction pipe of the embodiment of the present invention is illustrated with reference to the accompanying drawing.
Fig. 1 is stalk suction pipe sample obtained by the embodiment of the present invention comprising stalk pipe and stalk connecting component.From figure
1 at least can achieve 10cm as can be seen that its length of stalk suction pipe is made in the embodiment of the present invention, and two stalk pipes pass through L-shaped
Stalk connecting component links together.In specific application, the length and stalk connection of adjustment stalk pipe be can according to need
The moulding of component.
Fig. 2 is the scanning electron microscope (SEM) photograph of the cross section of stalk pipe made from the embodiment of the present invention, and Fig. 3 is stalk tube outer surface
Surface sweeping electron microscope.Figure it is seen that suction pipe cross section is layer structure, from figure 3, it can be seen that suction pipe smooth outer surface, no
It will affect use.
Fig. 4 is the extension test result figure for the longitudinal sectional sample that stalk pipe is made in the embodiment of the present invention, with stalk original material
It compares, the tensile strength of stalk suction pipe of the invention is increased to 59.38MPa from 35.41MPa, meets suction pipe requirement.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of complete biodegradable stalk suction pipe characterized by comprising pretreated stalk Guan Yu will be passed through
It is impregnated in cellulose solution, then takes out in air gelation to form cellulose colloid film in stalk pipe surface, then by straw
Stalk pipe, which is placed in distilled water, exchanges solvent, obtains stalk suction pipe after air-drying.
2. the preparation method of complete biodegradable stalk suction pipe according to claim 1, which is characterized in that the cellulose is molten
The concentration of liquid is 1-5wt%.
3. the preparation method of complete biodegradable stalk suction pipe according to claim 2, which is characterized in that the cellulose is molten
Liquid includes the mixed solvent of native cellulose pulp and dissolution native cellulose pulp, and the mixed solvent includes dimethyl Asia
Sulfone, tetrabutylammonium hydroxide and water, the mass ratio of dimethyl sulfoxide, tetrabutylammonium hydroxide and water are (6-10): (0.8-
1.2):1。
4. the preparation method of complete biodegradable stalk suction pipe according to claim 3, which is characterized in that the natural fiber
Plain pulp is one of cotton pulp, wood pulp, bamboo pulp and straw pulp or multiple combinations.
5. the preparation method of complete biodegradable stalk suction pipe according to claim 1, which is characterized in that the pre- place of stalk pipe
Managing step includes: to dry the stalk of harvesting, leaves tubular portion after stalk is removed section after dry, will obtain stalk pipe into
Then the bleaching of row delignification is washed with distilled water to filtrate and is in neutrality, then stalk pipe is existed until stalk pipe becomes white
Drying to constant weight at 90-105 DEG C.
6. the preparation method of complete biodegradable stalk suction pipe according to claim 5, which is characterized in that carry out stalk pipe
The detailed process of delignification bleaching includes: to impregnate stalk pipe in the mixed aqueous solution of glacial acetic acid and sodium chlorite；Its
In, the molar ratio of glacial acetic acid and sodium chlorite is (1.2-1.5): 1.
7. the preparation method of complete biodegradable stalk suction pipe according to claim 5, which is characterized in that carry out stalk pipe
Delignification bleaching detailed process include: by stalk pipe in the NaOH aqueous solution or KOH aqueous solution of 10-20wt% and
It is impregnated under 0.15-1.5MPa pressure.
8. the preparation method of complete biodegradable stalk suction pipe according to claim 1, which is characterized in that stalk pipe is in fiber
The time impregnated in plain solution is 0.5-1h, and the time condensed in air is 2.5-3.5h, is placed 2-4 days in distilled water.
9. the preparation method of complete biodegradable stalk suction pipe according to claim 1-8, which is characterized in that described
Preparation method further include: prepare the connecting component of connection stalk suction pipe by 3D printing method using polylactic acid as raw material, or adopt
It is the connecting component that raw material prepares by 3D printing method stalk suction pipe with cellulose solution.
10. the complete biodegradable stalk suction pipe that the described in any item preparation methods of claim 1-9 are prepared.
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| CN112021904A (en) * | 2020-08-17 | 2020-12-04 | 秦绪明 | Green and environment-friendly plant straw |
| CN112323164A (en) * | 2020-12-01 | 2021-02-05 | 许昌学院 | Protein modified regenerated cellulose fiber and production process thereof |
| CN112323164B (en) * | 2020-12-01 | 2023-02-17 | 许昌学院 | Protein modified regenerated cellulose fiber and production process thereof |
| CN114407162A (en) * | 2022-01-25 | 2022-04-29 | 东北林业大学 | Preparation method of bakelite-free straw |
| CN114407162B (en) * | 2022-01-25 | 2023-02-24 | 东北林业大学 | Preparation method of bakelite-free straw |
| CN115042285A (en) * | 2022-05-24 | 2022-09-13 | 张赞成 | River cogongrass straw and manufacturing process thereof |
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