CN102051766B - Preparation method of completely degradable biological polymer melt-blown cotton - Google Patents
Preparation method of completely degradable biological polymer melt-blown cotton Download PDFInfo
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- CN102051766B CN102051766B CN201110022818XA CN201110022818A CN102051766B CN 102051766 B CN102051766 B CN 102051766B CN 201110022818X A CN201110022818X A CN 201110022818XA CN 201110022818 A CN201110022818 A CN 201110022818A CN 102051766 B CN102051766 B CN 102051766B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses a preparation method of completely degradable biological polymer melt-blown cotton, relating to a filtering material. The invention provides a preparation method of completely degradable biological polymer melt-blown cotton which can be discarded and buried after being used, can completely degrade in the environment in a special time and can not cause public nuisance and pollution. The completely degradable biological polymer melt-blown cotton is prepared from matrix resin modified colloidal particles. The invention has the advantages that the product after being used can be discarded and buried, and proven by test, the biological polymer melt-blown cotton buried in a rubbish burial ground can completely biologically degrade in 1-2 years, so that public nuisance and pollution can not be caused.
Description
Technical field
The present invention relates to a kind of filtering material, especially relate to a kind of boiomacromolecule that can degrade fully and melt and spray cotton preparation method.
Background technology
Along with the enhancing of social development and human environment consciousness, its Application Areas of filtering material more and more widely, main application fields comprises aspects such as medicine, pharmacy, electronics, automobile, water treatment.The raw material of existing filtering material generally all are petroleum chemicals such as polyolefin and polyester.Although the petrochemical industry material is less than glass fibre in the harm to environment and human body, yet its service life is limited, belongs to easily-consumed products, a large amount of uses harm very big to environment.In recent years, PLA (PLA) can be used as the substitute of petrochemical industry material as a kind of novel biodegradable ep-type material, causes people's attention gradually.
PLA (PLA) degradative plastics is a kind of aliphatic polyester; It is a kind of thermoplasticity bioabsorbable polymer material with crystallinity, transparent, easy processing, fully biodegradable; Its vitrification point is 50～60 ℃; Fusing point is 170～180 ℃, and density is 1.25g/cm3, and mechanical properties such as intensity, elasticity are similar with polystyrene (PS) with the transparency.PLA is to be main production raw material with agriculture renewable resource (commonly used corn); Produce water white liquid-lactic acid through modern biotechnology, lactic acid generates graininess boiomacromolecule polyester material-PLA (PLA) through the particular chemical polymerization process.The PLA particle that is made by the corn extract is called " corn plastics ".The advantage of PLA is can biodegradation, and the method for degraded has multiple, as: mix in the fertilizer and decompose.The temperature of this composting conditions is 60 ℃, and relative humidity is 90%.The dominant mechanism of its degraded is hydrolysis, comes catalysis through temperature, by bacterium residual chip is nibbled then, can resolve into carbon dioxide and water, and the regeneration period short (about 1～2 year), does not pollute the environment.PLA can be applied to the huge packaging for foodstuff field of consumption, as disposable mess tin, plate, plate, disposal plastic cup etc.
In the filtering material field, have precedent to the PLA fiber applications abroad, its preparation method generally is; Earlier be carded to fibre web to the PLA fiber, method such as glue through acupuncture or heat again and be processed into filter material, but this PLA filter material performance have limitation; Lower like filter efficiency, Rong Chenxiao, and material is compressed (because the initial modulus of PLA fiber is lower easily in the preparation process; Easy deformation under little load, used pure PLA fiber material in combing or acupuncture course is compressed easily), the pressure drop of product is higher (when material is compressed; High pressure drop takes place in the time of possibly causing the filtering substrate of air draught in passing filter), this is unfavorable to preparation of product, also expends the energy.Therefore, a patent of Sweden (referring to proposing a kind of solution among the WO2008140384 (A1): in the PLA fiber, add polyester components, can avoid in carding process, being compressed, and adds polyester components simultaneously and also can play cementation by mixed fiber.This fiber web that mixes PLA fiber and polyester fiber through combing formation; The method of reinforcing again; Though solved the compressed problem of material; But the filtering substrate filter efficiency of preparing is lower, can not satisfy the instructions for use of high-performance filter (like the filter more than the F7 rank among the EN779), still is badly in need of requiring to solve.
Summary of the invention
The object of the present invention is to provide can bury after a kind of use to abandon, under special time and environment, can degrade fully, the boiomacromolecule that can degrade fully that can not cause public hazards to pollute melts and sprays cotton preparation method.
The present invention includes following steps:
1) preparation matrix resin (PLA) modified colloidal particle;
2) prepare the boiomacromolecule that to degrade fully and melt and spray cotton.
In step 1), the said method for preparing the matrix resin modified colloidal particle can be:
Matrix resin, modified master batch and auxiliary agent are dropped into batch mixer carry out batch mixing, then mixed raw materials is put in the double-screw extruding pelletizing machine, through melt extruding into line, cool off, pelletizing then obtains the matrix resin modified colloidal particle;
Said matrix resin, modified master batch and auxiliary agent are matrix resin 70%～90%, modified master batch 9%～29.8% and auxiliary agent 0.2%～1% by mass percentage; The said batch mixing that carries out, preferably earlier dry 10～30min carries out batch mixing again; The said technological parameter that mixed raw materials is put in the double-screw extruding pelletizing machine is following: utilize auxiliary feed system reinforced; Rate of feeding can be 60～120r/min, main-machine screw rotating speed and can be 250～350r/min, processing temperature and can be 170～180 ℃, die pressure and can be 1.0～6.0MPa, and the speed of said pelletizing can be 200～400r/min;
Said modified master batch is optional from poly butyric ester (PHB), polycaprolactone (PCL), poly butyric-valerate (PHBV), dihydroxylic alcohols dicarboxylic acids aliphatic polyester (PBS), at least a in fat/aromatic copolyesters (Ecoflex) etc.; Said auxiliary agent can be selected from ATBC (ATBC), ethylenebisstearamide (EBS), at least a in the dolomol etc.Said fat/aromatic copolyesters (Ecoflex) can adopt the fat/aromatic copolyesters (Ecoflex) of German BASF AG.
In step 2) in, the boiomacromolecule that said preparation can be degraded fully melts and sprays cotton method and can be:
In matrix resin modified colloidal particle feeding screw extruder; Melt extrude melt, in filter is transported to measuring pump, be transported to spray silk die head after the metering; Add under the hot-air winding-up effect in the spinneret orifice both sides; Promptly can be made into the matrix resin meltblown fibers, and on receiving system, lean on himself waste heat to add the type of being solidified into, the boiomacromolecule that acquisition can be degraded fully melts and sprays cotton.
The said temperature that melt extrudes melt can be 170～180 ℃; The temperature of said hot-air can be 170～180 ℃.
Melting and spraying cotton filtering material with existing P P compares; The prepared degradation biological macromolecule fully of the present invention melts and sprays cotton to have product and after use, can bury and abandon; Through test, be buried in the landfill 1～2 year with regard to fully biodegradable, so have advantages such as can not causing the public hazards pollution.
The specific embodiment
Embodiment 1
Its preparation method is following:
By mass percentage; With carrying out batch mixing behind matrix resin 70%, modified master batch Ecoflex 29% and the dry 30min of auxiliary agent A TBC 1% input high speed mixer, then mixed raw materials is put in the double-screw extruding pelletizing machine, through melt extruding into line; Cooling; Pelletizing then obtains the matrix resin modified colloidal particle, and technological parameter is following: utilize auxiliary feed system reinforced; Rate of feeding is that 120r/min, main-machine screw rotating speed are that 350r/min, processing temperature are that 180 ℃, die pressure are 6.0MPa, and pelleter pelletizing speed is 400r/min; Then with in the matrix resin modified colloidal particle feeding screw extruder; Under 180 ℃, melt extrude melt, in filter is transported to measuring pump, be transported to spray silk die head after the metering; Add under 180 ℃ of hot-air winding-up effects in the spinneret orifice both sides; Can directly process the matrix resin meltblown fibers, and on receiving system, lean on himself waste heat to add the type of being solidified into, obtain described degradation biological macromolecule fully and melt and spray cotton.
Embodiment 2
Its preparation method is following:
By mass percentage; Matrix resin 80%, modified master batch PHBV 19.5% and auxiliary agent EBS0.2% are dropped into the dry 10min of high speed mixer carry out batch mixing, then mixed raw materials is put in the double-screw extruding pelletizing machine, through melt extruding into line; Cooling; Pelletizing then obtains the matrix resin modified colloidal particle, and technological parameter is following: utilize auxiliary feed system reinforced; Rate of feeding is that 60r/min, main-machine screw rotating speed are that 250r/min, processing temperature are that 170 ℃, die pressure are 2.0MPa, and pelleter pelletizing speed is 200r/min; Then with in the matrix resin modified colloidal particle feeding screw extruder; Under 170 ℃, melt extrude melt, in filter is transported to measuring pump, be transported to spray silk die head after the metering; Add under 170 ℃ of hot-air winding-up effects in the spinneret orifice both sides; Can directly process the matrix resin meltblown fibers, and on receiving system, lean on himself waste heat to add the type of being solidified into, obtain described degradation biological macromolecule fully and melt and spray cotton.
Embodiment 3
Its preparation method is following:
By mass percentage; Matrix resin 90%, modified master batch PCL9% and auxiliary agent dolomol 1% are dropped into the dry 20min of high speed mixer carry out batch mixing, then mixed raw materials is put in the double-screw extruding pelletizing machine, through melt extruding into line; Cooling; Pelletizing then obtains the matrix resin modified colloidal particle, and technological parameter is following: utilize auxiliary feed system reinforced; Rate of feeding is that 80r/min, main-machine screw rotating speed are that 300r/min, processing temperature are that 175 ℃, die pressure are 4.0MPa, and pelleter pelletizing speed is 300r/min; Then with in the matrix resin modified colloidal particle feeding screw extruder; Under 175 ℃, melt extrude melt, in filter is transported to measuring pump, be transported to spray silk die head after the metering; Add under 180 ℃ of hot-air winding-up effects in the spinneret orifice both sides; Can directly process the matrix resin meltblown fibers, and on receiving system, lean on himself waste heat to add the type of being solidified into, obtain described degradation biological macromolecule fully and melt and spray cotton.
Embodiment 4
Its preparation method is following:
By mass percentage; Matrix resin 70%, modified master batch PHB20%, PBS9% and auxiliary agent A TBC 1% are dropped into the dry 30min of high speed mixer carry out batch mixing, then mixed raw materials is put in the double-screw extruding pelletizing machine, through melt extruding into line; Cooling; Pelletizing then obtains the matrix resin modified colloidal particle, and technological parameter is following: utilize auxiliary feed system reinforced; Rate of feeding is that 100r/min, main-machine screw rotating speed are that 400r/min, processing temperature are that 175 ℃, die pressure are 5.0MPa, and pelleter pelletizing speed is 350r/min; Then with in the matrix resin modified colloidal particle feeding screw extruder; Under 175 ℃, melt extrude melt, in filter is transported to measuring pump, be transported to spray silk die head after the metering; Add under 175 ℃ of hot-air winding-up effects in the spinneret orifice both sides; Can directly process the matrix resin meltblown fibers, and on receiving system, lean on himself waste heat to add the type of being solidified into, obtain described degradation biological macromolecule fully and melt and spray cotton.
Claims (4)
1. the boiomacromolecule that can degrade fully melts and sprays cotton preparation method, it is characterized in that may further comprise the steps:
1) preparation matrix resin modified colloidal particle; The said method for preparing the matrix resin modified colloidal particle is carried out batch mixing for matrix resin, modified master batch and auxiliary agent are dropped into batch mixer; Then mixed raw materials is put in the double-screw extruding pelletizing machine; Through melt extruding into line, cooling, pelletizing then; Obtain the matrix resin modified colloidal particle, said matrix resin, modified master batch and auxiliary agent are matrix resin 70%～90%, modified master batch 9%～29.8% and auxiliary agent 0.2%～1% by mass percentage; Said modified master batch is selected from poly butyric ester, polycaprolactone, poly butyric-valerate, dihydroxylic alcohols dicarboxylic acids aliphatic polyester, at least a in fat/aromatic copolyesters; Said auxiliary agent is selected from ATBC, ethylenebisstearamide, at least a in the dolomol; The said technological parameter that mixed raw materials is put in the double-screw extruding pelletizing machine is following: utilize auxiliary feed system reinforced; Rate of feeding is that 60～120r/min, main-machine screw rotating speed are that 250～350r/min, processing temperature are that 170～180 ℃, die pressure are 1.0～6.0MPa, and the speed of said pelletizing is 200～400r/min;
2) prepare the boiomacromolecule that to degrade fully and melt and spray cotton.
2. a kind of boiomacromolecule that can degrade fully as claimed in claim 1 melts and sprays cotton preparation method, it is characterized in that the said batch mixing that carries out, and is that earlier dry 10～30min carries out batch mixing again.
3. a kind of boiomacromolecule that can degrade fully as claimed in claim 1 melts and sprays cotton preparation method; It is characterized in that in step 2) in, the boiomacromolecule that said preparation can be degraded fully melts and sprays cotton method for in the matrix resin modified colloidal particle feeding screw extruder, melt extrudes melt; In filter is transported to measuring pump; Be transported to spray silk die head after the metering, add under the hot-air winding-up effect, promptly can be made into the matrix resin meltblown fibers in the spinneret orifice both sides; And on receiving system, leaning on himself waste heat to add the type of being solidified into, the boiomacromolecule that acquisition can be degraded fully melts and sprays cotton.
4. a kind of boiomacromolecule that can degrade fully as claimed in claim 3 melts and sprays cotton preparation method, it is characterized in that the said temperature that melt extrudes melt is 170～180 ℃; The temperature of said hot-air is 170～180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110022818XA CN102051766B (en) | 2011-01-18 | 2011-01-18 | Preparation method of completely degradable biological polymer melt-blown cotton |
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| CN201110022818XA CN102051766B (en) | 2011-01-18 | 2011-01-18 | Preparation method of completely degradable biological polymer melt-blown cotton |
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| CN102051766A CN102051766A (en) | 2011-05-11 |
| CN102051766B true CN102051766B (en) | 2012-08-15 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634931A (en) * | 2012-03-12 | 2012-08-15 | 马素德 | Production method of absorptive radiation-proof nonwoven fabrics |
| CN105200651B (en) * | 2015-10-29 | 2018-01-09 | 江苏恒生环保科技有限公司 | A kind of biodegradable warp knit filtrate base fabric and preparation method thereof |
| CN106693520A (en) * | 2016-12-13 | 2017-05-24 | 厦门建霖工业有限公司 | Biodegradable active carbon fiber filtering core and preparation method thereof |
| CN108265394B (en) * | 2018-04-08 | 2020-05-29 | 武汉纺织大学 | Biodegradable melt-blown polybutylene succinate non-woven fabric and preparation method thereof |
| CN112221250B (en) * | 2020-09-10 | 2022-03-22 | 青岛中亚环保工程有限公司 | PBS/PP double-component melt-blown fiber filtering material and manufacturing method thereof |
| CN112981707A (en) * | 2021-02-04 | 2021-06-18 | 南京禾素时代抗菌材料科技有限公司 | Preparation method of antibacterial, antiviral and mildewproof polyester spunlace nonwoven fabric containing PHBV material |
| CN113308803B (en) * | 2021-06-28 | 2022-07-15 | 运鸿集团股份有限公司 | Preparation method of fully-degradable non-woven fabric produced by spun-bonding method |
| CN113861644B (en) * | 2021-10-19 | 2023-05-23 | 湖南盛锦新材料有限公司 | Production method of biodegradable melt-blown material |
| CN113957605A (en) * | 2021-10-28 | 2022-01-21 | 安徽同力新材料有限公司 | Biodegradable melt-blown fabric production process |
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| CN101914272A (en) * | 2010-08-02 | 2010-12-15 | 深港产学研基地产业发展中心 | Biodegradable modified polylactic acid material and preparation method thereof and method for preparing non-woven fabric by same |
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| WO1997005306A1 (en) * | 1995-08-02 | 1997-02-13 | Kimberly-Clark Worldwide, Inc. | Method and apparatus for the production of artificial fibers, non-woven webs and sorbency non-woven fabrics |
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| CN1563543A (en) * | 2004-04-20 | 2005-01-12 | 东华大学 | Superfine non-woven fabric from fiber of poly lactic acid and fabricating method |
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Effective date of registration: 20171221 Address after: 361000 Fujian Province, Xiamen city Tongan Industrial Zone Siming Park No. 305 Patentee after: Xiamen Bailin water purification technology Co. Ltd. Address before: 361000, room 12, building 1208, lotus tower, 859 Lotus Road, Fujian, Xiamen Patentee before: Xiamen Runner Industrial Corporation |