CN108149509A - A kind of highly hygroscopic acid fiber by polylactic for medical tissue - Google Patents

A kind of highly hygroscopic acid fiber by polylactic for medical tissue Download PDF

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Publication number
CN108149509A
CN108149509A CN201711403278.3A CN201711403278A CN108149509A CN 108149509 A CN108149509 A CN 108149509A CN 201711403278 A CN201711403278 A CN 201711403278A CN 108149509 A CN108149509 A CN 108149509A
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parts
gelatin
polylactic
highly hygroscopic
medical tissue
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CN201711403278.3A
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张德满
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HEFEI C&P NONWOVEN PRODUCTS CO Ltd
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HEFEI C&P NONWOVEN PRODUCTS CO Ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/28—Organic non-cellulose fibres from natural polymers
    • D21H13/34—Protein fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/22—Proteins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/59—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/62—Rosin; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/08—Dispersing agents for fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The invention discloses a kind of highly hygroscopic acid fiber by polylactic for medical tissue, raw material includes by weight：80 100 parts of polylactic acid, 15 25 parts of compatilizer, 6 12 parts of wool fiber, 59 parts of cocoanut fiber, 48 parts of vermiculite power, 24 parts of white carbon, 6 12 parts of plasticizer, 23 parts of colorant, 12 parts of lubricant, 1.5 2.5 parts of dispersant.Compatilizer includes by weight：Gelatin-compounded 20 30 parts of object, 0.6 1 parts of aluminum-zirconium coupling agent.Gelatin-compounded object is prepared using following technique：Bamboo powder is dried, it crushes, sodium hydroxide solution is added in impregnate, filtering, it is dry, it adds in ethanol solution, 1 (3 dimethylamino-propyl) 3 ethyl carbodiimide hydrochlorides, N hydroxy thiosuccinimides and is uniformly mixed, it is subsequently added into gelatin stirring, washing, freeze-drying, smashing obtain gelatin-compounded object.

Description

A kind of highly hygroscopic acid fiber by polylactic for medical tissue
Technical field
The present invention relates to medical tissue technical field more particularly to a kind of highly hygroscopic polylactic acid for medical tissue Fiber.
Background technology
Acid fiber by polylactic is a series of a kind of using corn, potato starch as raw material, lifes being process such as fermented, purification Object base chemical fibre, since acid fiber by polylactic has many superiority, its environment-friendly biodegradable, skin-friendly is good, with poly- breast Sour fiber produces medical tissue, excellent.But the shortcomings that acid fiber by polylactic can not meet demand there are moisture sorption effect becomes Restrict the short slab of its development.
Invention content
Technical problems based on background technology, the present invention propose a kind of highly hygroscopic poly- breast for medical tissue Sour fiber, moisture pick-up properties is excellent, can be applied to medical tissue, and discarded rear biological degradability is good, is placed on after discarded certainly Under right environment or it is buried in the earth and can slowly decomposes, it is small to the harmful effect of environment.
A kind of highly hygroscopic acid fiber by polylactic for medical tissue proposed by the present invention, raw material include by weight： 80-100 parts of polylactic acid, 15-25 parts of compatilizer, 6-12 parts of wool fiber, 5-9 parts of cocoanut fiber, 4-8 parts of vermiculite power, white carbon 2-4 parts, 6-12 parts of plasticizer, 2-3 parts of colorant, 1-2 parts of lubricant, 1.5-2.5 parts of dispersant.
Preferably, plasticizer includes by weight：2-4 parts of methyl-silicone oil, 2-4 parts of epoxidized soybean oil, disproportionated rosin 2-4 Part.
Preferably, compatilizer includes by weight：Gelatin-compounded object 20-30 parts, 0.6-1 parts of aluminum-zirconium coupling agent.
Preferably, gelatin-compounded object is prepared using following technique：Bamboo powder dry, pulverize, add in sodium hydroxide solution leaching Bubble filters, dry, adds in ethanol solution, 1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, N- hydroxy ambers Amber acid imide is uniformly mixed, and is subsequently added into gelatin stirring, is washed, freeze-drying, smashing obtains gelatin-compounded object.
Preferably, in the preparation process of gelatin-compounded object, concentration of sodium hydroxide solution 1-1.4mol/L, ethanol solution is dense Spend 65-75wt%.
Preferably, in the preparation process of gelatin-compounded object, bamboo powder, sodium hydroxide solution, ethanol solution, 1- (3- diformazan ammonia Base propyl) -3- ethyl carbodiimide hydrochlorides, N- hydroxy thiosuccinimides, gelatin weight ratio be 25-30：55-75： 100-140：1-2：1.2-1.8：30-40.
Preferably, gelatin-compounded object is prepared using following technique：Bamboo powder is dried into 40-60min, drying temperature 110- It 120 DEG C, crushing, addition sodium hydroxide solution impregnates 4-8h, and soaking temperature is 65-75 DEG C, is filtered, dry, addition ethanol solution, 1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, N- hydroxy thiosuccinimides are uniformly mixed, and are added in gelatin and are stirred 4-8h is mixed, after deionized water washing, freeze-drying, smashing obtains gelatin-compounded object.
For the present invention while polylactic acid possessed transparent and flexibility in itself is maintained, moisture pick-up properties is excellent, can answer For medical tissue, and discarded rear biological degradability is good, and placing in a natural environment or be buried in the earth after discarded can be slow It decomposes, it is small to the harmful effect of environment.
In the gelatin-compounded object of the present invention, bamboo powder is high by sodium hydroxide alkalization processing rear surface activity, is dispersed in second In alcoholic solution, compounded with gelatin, then through 1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides and N- hydroxy ambers After acid imide processing, there is higher degree of crosslinking and mechanical property, not only pore structure is flourishing, and moisture sorption effect is higher, and degrades Functional, 40d is degradable, is conducive to the extensive use in medical tissue；Gelatin-compounded object coordinates with acid fiber by polylactic The additive amount of polylactic acid can be saved, significantly improves the moisture sorption effect of acid fiber by polylactic, up to more than the 76% of own wt, and Not easy to break, fibre strength is high, and for tensile strength up to 30MPa, elongation at break is up to 520%, while the two degradability Can be preferably free from environmental pollution after discarding, it is embedded to behind underground 2 years degradable more than 78%.
Specific embodiment
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of highly hygroscopic acid fiber by polylactic for medical tissue, raw material include：Polylactic acid 80g, compatilizer 25g, Wool fiber 6g, cocoanut fiber 9g, vermiculite power 4g, white carbon 4g, plasticizer 6g, colorant 3g, lubricant 1g, dispersant 2.5g。
Plasticizer includes：Methyl-silicone oil 2g, epoxidized soybean oil 4g, disproportionated rosin 2g.Compatilizer includes：Gelatin-compounded object 30g, aluminum-zirconium coupling agent 0.6g.
Gelatin-compounded object is prepared using following technique：30g bamboo powders are dried into 40min, drying temperature is 120 DEG C, crushes, adds Enter a concentration of 1.4mol/L sodium hydroxide solutions of 55g and impregnate 4h, soaking temperature is 75 DEG C, is filtered, dry, adds in 100g concentration 75wt% ethanol solutions, 1g1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, 1.8gN- hydroxies succinyl are sub- Amine is uniformly mixed, and adds in 30g gelatin stirring 8h, after deionized water washing, freeze-drying, smashing obtains gelatin-compounded object.
Embodiment 2
A kind of highly hygroscopic acid fiber by polylactic for medical tissue, raw material include：Polylactic acid 100g, compatilizer 15g, Wool fiber 12g, cocoanut fiber 5g, vermiculite power 8g, white carbon 2g, plasticizer 12g, colorant 2g, lubricant 2g, dispersant 1.5g。
Plasticizer includes：Methyl-silicone oil 4g, epoxidized soybean oil 2g, disproportionated rosin 4g.Compatilizer includes：Gelatin-compounded object 20g, aluminum-zirconium coupling agent 1g.
Gelatin-compounded object is prepared using following technique：25g bamboo powders are dried into 60min, drying temperature is 110 DEG C, crushes, adds Enter a concentration of 1mol/L sodium hydroxide solutions of 75g and impregnate 8h, soaking temperature is 65 DEG C, is filtered, dry, adds in 140g concentration 65wt% ethanol solutions, 2g1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, 1.2gN- hydroxies succinyl are sub- Amine is uniformly mixed, and adds in 40g gelatin stirring 4h, after deionized water washing, freeze-drying, smashing obtains gelatin-compounded object.
Embodiment 3
A kind of highly hygroscopic acid fiber by polylactic for medical tissue, raw material include：Polylactic acid 85g, compatilizer 22g, Wool fiber 8g, cocoanut fiber 8g, vermiculite power 5g, white carbon 3.5g, plasticizer 8g, colorant 2.8g, lubricant 1.2g, dispersion Agent 2.2g.
Plasticizer includes：Methyl-silicone oil 2.5g, epoxidized soybean oil 3.5g, disproportionated rosin 2.5g.Compatilizer includes：Gelatin is answered Close object 28g, aluminum-zirconium coupling agent 0.7g.
Gelatin-compounded object is prepared using following technique：28g bamboo powders are dried into 45min, drying temperature is 118 DEG C, crushes, adds Enter a concentration of 1.3mol/L sodium hydroxide solutions of 60g and impregnate 5h, soaking temperature is 72 DEG C, is filtered, dry, adds in 110g concentration 72wt% ethanol solutions, 1.2g1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, 1.6gN- hydroxy succinyls Imines is uniformly mixed, and adds in 33g gelatin stirring 7h, after deionized water washing, freeze-drying, smashing obtains gelatin-compounded object.
Embodiment 4
A kind of highly hygroscopic acid fiber by polylactic for medical tissue, raw material include：Polylactic acid 95g, compatilizer 18g, Wool fiber 10g, cocoanut fiber 6g, vermiculite power 7g, white carbon 2.5g, plasticizer 10g, colorant 2.2g, lubricant 1.8g, point Powder 1.8g.
Plasticizer includes：Methyl-silicone oil 3.5g, epoxidized soybean oil 2.5g, disproportionated rosin 3.5g.Compatilizer includes：Gelatin is answered Close object 22g, aluminum-zirconium coupling agent 0.9g.
Gelatin-compounded object is prepared using following technique：26g bamboo powders are dried into 55min, drying temperature is 112 DEG C, crushes, adds Enter a concentration of 1.1mol/L sodium hydroxide solutions of 70g and impregnate 7h, soaking temperature is 68 DEG C, is filtered, dry, adds in 130g concentration 68wt% ethanol solutions, 1.8g1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, 1.4gN- hydroxy succinyls Imines is uniformly mixed, and adds in 37g gelatin stirring 5h, after deionized water washing, freeze-drying, smashing obtains gelatin-compounded object.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of highly hygroscopic acid fiber by polylactic for medical tissue, which is characterized in that its raw material includes by weight：Poly- breast It is 80-100 parts sour, 15-25 parts of compatilizer, 6-12 parts of wool fiber, 5-9 parts of cocoanut fiber, 4-8 parts of vermiculite power, white carbon 2-4 Part, 6-12 parts of plasticizer, 2-3 parts of colorant, 1-2 parts of lubricant, 1.5-2.5 parts of dispersant.
2. it to be used for the highly hygroscopic acid fiber by polylactic of medical tissue according to claim 1, which is characterized in that plasticizer is by weight Amount part includes：2-4 parts of methyl-silicone oil, 2-4 parts of epoxidized soybean oil, 2-4 parts of disproportionated rosin.
3. the highly hygroscopic acid fiber by polylactic according to claim 1 or claim 2 for medical tissue, which is characterized in that compatilizer Include by weight：Gelatin-compounded object 20-30 parts, 0.6-1 parts of aluminum-zirconium coupling agent.
4. it to be used for the highly hygroscopic acid fiber by polylactic of medical tissue according to claim 3, which is characterized in that gelatin-compounded object It is prepared using following technique：Bamboo powder dry, pulverize, add in sodium hydroxide solution and impregnate, filter, it is dry, addition ethanol solution, 1- (3- dimethylamino-propyls) -3- ethyl carbodiimide hydrochlorides, N- hydroxy thiosuccinimides are uniformly mixed, and are subsequently added into bright Glue stirs, and washs, and freeze-drying, smashing obtains gelatin-compounded object.
5. it to be used for the highly hygroscopic acid fiber by polylactic of medical tissue according to claim 4, which is characterized in that gelatin-compounded object Preparation process in, concentration of sodium hydroxide solution 1-1.4mol/L, ethanol solution concentration 65-75wt%.
6. the highly hygroscopic acid fiber by polylactic for medical tissue according to claim 4 or 5, which is characterized in that gelatin is multiple In the preparation process for closing object, bamboo powder, sodium hydroxide solution, ethanol solution, 1- (3- dimethylamino-propyls) -3- ethyl carbodiimides Hydrochloric acid, N- hydroxy thiosuccinimides, gelatin weight ratio be 25-30：55-75：100-140：1-2：1.2-1.8：30- 40。
7. the highly hygroscopic acid fiber by polylactic of medical tissue to be used for according to claim any one of 4-6, which is characterized in that bright Glue compound is prepared using following technique：Bamboo powder is dried into 40-60min, drying temperature is 110-120 DEG C, crushes, adds in hydrogen-oxygen Change sodium solution impregnates 4-8h, and soaking temperature is 65-75 DEG C, is filtered, dry, and addition ethanol solution, 1- (3- dimethylamino-propyls)- 3- ethyl carbodiimide hydrochlorides, N- hydroxy thiosuccinimides are uniformly mixed, and add in gelatin stirring 4-8h, deionized water washing Afterwards, it is freeze-dried, smashing obtains gelatin-compounded object.
CN201711403278.3A 2017-12-22 2017-12-22 A kind of highly hygroscopic acid fiber by polylactic for medical tissue Withdrawn CN108149509A (en)

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CN112941974A (en) * 2021-01-29 2021-06-11 合肥恒鑫环保科技有限公司 Environment-friendly tableware and preparation process thereof

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EP2137250B1 (en) * 2007-04-19 2017-09-13 Synbra Technology B.V. Coated particulate expandable polyactic acid
CN101481503A (en) * 2008-01-09 2009-07-15 财团法人工业技术研究院 Plasticiser and biodegradable material added with the same
CN101850134A (en) * 2009-09-15 2010-10-06 北京百利康生化有限公司 Medicinal absorbable and degradable biological anti-adhering material
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WO2014100718A1 (en) * 2012-12-21 2014-06-26 University Of Pittsburgh - Of The Commonwealth System Of Higher Education Methods of electrospinning and compositions made therefrom
CN103526336A (en) * 2013-10-15 2014-01-22 东华大学 Preparation method of oriented shell-core structural superfine composite fiber
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