CN110305455A - Degradable urinary bag material of one kind and preparation method thereof - Google Patents
Degradable urinary bag material of one kind and preparation method thereof Download PDFInfo
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- CN110305455A CN110305455A CN201910494896.6A CN201910494896A CN110305455A CN 110305455 A CN110305455 A CN 110305455A CN 201910494896 A CN201910494896 A CN 201910494896A CN 110305455 A CN110305455 A CN 110305455A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The present invention provides degradable urinary bag material of one kind and preparation method thereof and is related to urinary bag processing technique field.It is described, a degradable urinary bag material is made of raw material from the following weight: 60-80 parts of polylactic acid, 12-14 parts of polycaprolactone, 2-4 parts of cellulose acetate, 8-10 parts of starch, 4-5 parts of dimethoxybenzoin, 6-10 parts of polyvinyl alcohol, 2-3 parts of plant fiber, 1-3 parts of Sodium Polyacrylate, 4-6 parts of nano-titanium dioxide, 5, 10, 15, 2-3 parts of porphyrin of 20- tetra- (4- hydroxyphenyl), 2-3 parts of poly-β-hybroxybutyric acid, 0.6-1.4 parts of benzoyl peroxide, 2, 4, 1-2 parts of oxygen phosphorus of 6- trimethylbenzoyl hexichol, 1-2 parts of plasticizer, 0.8-1.6 parts of emulsifier, 1-2 parts of dispersing agent.The present invention overcomes the deficiencies in the prior art, while guaranteeing the toughness of urinary bag material, gained urinary bag material are made to have two kinds of resolution characteristics of photodegradation and biological decomposition, lifting factorization efficiency reduces pollution, is suitable for promoting production and application.
Description
Technical field
The present invention relates to urinary bag processing technique fields, and in particular to the degradable urinary bag material of one kind and its preparation
Method.
Background technique
Urinary bag is that the device that sufferer urine is collected by catheter is made with resin material, and indwelling catheter is clinical common
Operational means, in Rescuing Critical Patients, neurogenic bladder functional training, urine volume monitoring etc. is of great significance.
Since usage amount is very big within the hospital for urinary bag, and such product is not suitable for being recycled, so urinary bag is big
Part is disposable product, and urinary bag is unfavorable for recycling as resinous material preparation and rubbish is destroyed, permanent previous meeting
A large amount of white pollutions are caused, environment is influenced, so developing a kind of degradable urinary bag material is a big important research at this stage
Direction.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides degradable urinary bag material of one kind and preparation method thereof, protecting
While demonstrate,proving the toughness of urinary bag material, makes gained urinary bag material that there are two kinds of resolution characteristics of photodegradation and biological decomposition, mention
Decomposition efficiency is risen, pollution is reduced, is suitable for promoting production and application.
In order to achieve the above object, technical solution of the present invention is achieved by the following technical programs:
An a kind of degradable urinary bag material, a degradable urinary bag material by following parts by weight raw material system
At: 60-80 parts of polylactic acid, 12-14 parts of polycaprolactone, 2-4 parts of cellulose acetate, 8-10 parts of starch, dimethoxybenzoin 4-5
Part, 6-10 parts of polyvinyl alcohol, 2-3 parts of plant fiber, 1-3 parts of Sodium Polyacrylate, 4-6 parts of nano-titanium dioxide, 5,10,15,20-
Four 2-3 parts of (4- hydroxyphenyl) porphyrins, 2-3 parts of poly-β-hybroxybutyric acid, 0.6-1.4 parts of benzoyl peroxide, 2,4,6- trimethyls
1-2 parts of benzoyl hexichol oxygen phosphorus, 1-2 parts of plasticizer, 0.8-1.6 parts of emulsifier, 1-2 parts of dispersing agent.
Preferably, the plasticizer is melamine, pentachlorophenol, phthalic acid two (2- ethyl hexyl) ester mass ratio 1:
1: 4 mixture.
Preferably, the emulsifier is ethylene glycol, nonylphenol polyoxyethylene ether, contracting methylcellulose mass ratio 2: 3: 3
Mixture.
Preferably, the dispersing agent is sodium lignin sulfonate, dimethyl silicone polymer, vinyl bis-stearamides mass ratio
3: 1: 3 mixture.
The preparation method of a degradable urinary bag material the following steps are included:
(1) 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins, poly-β-hybroxybutyric acid is added in high temperature in nano-titanium dioxide
Lower high-speed stirred, it is spare to obtain mixture A；
(2) polylactic acid, polycaprolactone are mixed and adds benzoyl peroxide and starch, 2,4,6- trimethylbenzoyls two
It is spare to obtain mixture B in high temperature and pressure stirring grafting in autoclave for benzene oxygen phosphorus；
(3) above-mentioned mixture B addition mixture A is added into plant fiber, emulsifier, dimethoxybenzoin, acetic acid fibre again
Dimension element, dispersant keep the temperature high-speed stirred, and it is spare to obtain mixture C；
(4) by above-mentioned mixture C be added Sodium Polyacrylate, plasticizer, polyvinyl alcohol in kneading machine high temperature be kneaded, after adopt
A degradable urinary bag material is squeezed out to obtain with extruder.
Preferably, the temperature of high-speed stirred is 80-90 DEG C under step (1) high temperature, speed of agitator 1200-
1400r/min, mixing time 25-30min.
Preferably, the temperature of step (2) the high temperature high-pressure stirring grafting is 150-160 DEG C, pressure 18-20MPa,
Speed of agitator is 200-300r/min, time 60-80min.
Preferably, the temperature of the heat preservation high-speed stirred is 180-190 DEG C, speed of agitator 800-900r/min, stirring
Time is 30-40min.
Preferably, the temperature of the high-temperature mixing is 230-240 DEG C, mixing time 40-50min, extrusion temperature 200
℃。
The present invention provides degradable urinary bag material of one kind and preparation method thereof, and advantage exists compared with prior art
In:
(1) present invention uses polylactic acid and polycaprolactone for main base, and adds benzoyl peroxide and starch, 2,
4,6- trimethylbenzoyl hexichol oxygen phosphorus carry out grafting processing, have product while the toughness of product is effectively ensured degradable
Property, promote the use value of product.
(2) present invention is added with titanium dioxide and 5, and 10,15,20- tetra- (4- hydroxyphenyl) porphyrins, poly-β-hybroxybutyric acid are simultaneously
High temperature quickly stirs, and makes 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins, poly-β-hybroxybutyric acid that can load to titanium dioxide,
Later period with and material mix after effectively promote the light sensitivity of product, so that it can be stablized degradation under ultraviolet light irradiation, promotion, which is degraded, imitates
Rate.
(3) present invention is further mentioned added with substances such as plant fiber, emulsifier, dimethoxybenzoin, cellulose acetates
The degradation efficiency of product is risen, while promoting the toughness and stability of product, prevents from causing to damage in product use process, is promoted and is produced
The use value of product.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to the embodiment of the present invention pair
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Embodiment 1:
An a kind of degradable urinary bag material, a degradable urinary bag material by following parts by weight raw material system
At: 60 parts of polylactic acid, 12 parts of polycaprolactone, 2 parts of cellulose acetate, 8 parts of starch, 4 parts of dimethoxybenzoin, 6 parts of polyvinyl alcohol,
2 parts of plant fiber, 1 part of Sodium Polyacrylate, 4 parts of nano-titanium dioxide, 5,10,15,20- tetra- 2 parts of (4- hydroxyphenyl) porphyrins, poly- β-
2 parts of butyric ester, 0.6 part of benzoyl peroxide, 2,4,6- 1 part of trimethylbenzoyl hexichol oxygen phosphorus, 1 part of plasticizer, emulsification
0.8 part of agent, 1 part of dispersing agent.
The plasticizer be melamine, pentachlorophenol, phthalic acid two (2- ethyl hexyl) ester mass ratio 1: 1: 4 it is mixed
Close object；The emulsifier is the mixture of ethylene glycol, nonylphenol polyoxyethylene ether, contracting methylcellulose mass ratio 2: 3: 3；It is described
Dispersing agent is the mixture of sodium lignin sulfonate, dimethyl silicone polymer, vinyl bis-stearamides mass ratio 3: 1: 3.
The preparation method of a degradable urinary bag material the following steps are included:
(1) 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins, poly-β-hybroxybutyric acid is added in high temperature in nano-titanium dioxide
Lower high-speed stirred, it is spare to obtain mixture A；
(2) polylactic acid, polycaprolactone are mixed and adds benzoyl peroxide and starch, 2,4,6- trimethylbenzoyls two
It is spare to obtain mixture B in high temperature and pressure stirring grafting in autoclave for benzene oxygen phosphorus；
(3) above-mentioned mixture B addition mixture A is added into plant fiber, emulsifier, dimethoxybenzoin, acetic acid fibre again
Dimension element, dispersant keep the temperature high-speed stirred, and it is spare to obtain mixture C；
(4) by above-mentioned mixture C be added Sodium Polyacrylate, plasticizer, polyvinyl alcohol in kneading machine high temperature be kneaded, after adopt
A degradable urinary bag material is squeezed out to obtain with extruder.
Wherein, the temperature of high-speed stirred is 80-90 DEG C under step (1) high temperature, speed of agitator 1200-1400r/
Min, mixing time 25-30min；The temperature of step (2) the high temperature high-pressure stirring grafting is 150-160 DEG C, and pressure is
18-20MPa, speed of agitator 200-300r/min, time 60-80min；The temperature of the heat preservation high-speed stirred is 180-
190 DEG C, speed of agitator 800-900r/min, mixing time 30-40min；The temperature of the high-temperature mixing is 230-240
DEG C, mixing time 40-50min, extrusion temperature is 200 DEG C.
Embodiment 2:
An a kind of degradable urinary bag material, a degradable urinary bag material by following parts by weight raw material system
At: 80 parts of polylactic acid, 14 parts of polycaprolactone, 4 parts of cellulose acetate, 10 parts of starch, 5 parts of dimethoxybenzoin, polyvinyl alcohol 10
Part, 3 parts of plant fiber, 3 parts of Sodium Polyacrylate, 6 parts of nano-titanium dioxide, 5,10,15,20- tetra- 3 parts of (4- hydroxyphenyl) porphyrins,
3 parts of poly-β-hybroxybutyric acid, 1.4 parts of benzoyl peroxide, 2,4,6- 2 parts of trimethylbenzoyl hexichol oxygen phosphorus, 2 parts of plasticizer,
1.6 parts of emulsifier, 2 parts of dispersing agent.
The plasticizer be melamine, pentachlorophenol, phthalic acid two (2- ethyl hexyl) ester mass ratio 1: 1: 4 it is mixed
Close object；The emulsifier is the mixture of ethylene glycol, nonylphenol polyoxyethylene ether, contracting methylcellulose mass ratio 2: 3: 3；It is described
Dispersing agent is the mixture of sodium lignin sulfonate, dimethyl silicone polymer, vinyl bis-stearamides mass ratio 3: 1: 3.
The preparation method of a degradable urinary bag material the following steps are included:
(1) 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins, poly-β-hybroxybutyric acid is added in high temperature in nano-titanium dioxide
Lower high-speed stirred, it is spare to obtain mixture A；
(2) polylactic acid, polycaprolactone are mixed and adds benzoyl peroxide and starch, 2,4,6- trimethylbenzoyls two
It is spare to obtain mixture B in high temperature and pressure stirring grafting in autoclave for benzene oxygen phosphorus；
(3) above-mentioned mixture B addition mixture A is added into plant fiber, emulsifier, dimethoxybenzoin, acetic acid fibre again
Dimension element, dispersant keep the temperature high-speed stirred, and it is spare to obtain mixture C；
(4) by above-mentioned mixture C be added Sodium Polyacrylate, plasticizer, polyvinyl alcohol in kneading machine high temperature be kneaded, after adopt
A degradable urinary bag material is squeezed out to obtain with extruder.
Wherein, the temperature of high-speed stirred is 80-90 DEG C under step (1) high temperature, speed of agitator 1200-1400r/
Min, mixing time 25-30min；The temperature of step (2) the high temperature high-pressure stirring grafting is 150-160 DEG C, and pressure is
18-20MPa, speed of agitator 200-300r/min, time 60-80min；The temperature of the heat preservation high-speed stirred is 180-
190 DEG C, speed of agitator 800-900r/min, mixing time 30-40min；The temperature of the high-temperature mixing is 230-240
DEG C, mixing time 40-50min, extrusion temperature is 200 DEG C.
Embodiment 3:
An a kind of degradable urinary bag material, a degradable urinary bag material by following parts by weight raw material system
At: 70 parts of polylactic acid, 13 parts of polycaprolactone, 3 parts of cellulose acetate, 9 parts of starch, 4.5 parts of dimethoxybenzoin, polyvinyl alcohol 8
Part, 2.5 parts of plant fiber, 2 parts of Sodium Polyacrylate, 5 parts of nano-titanium dioxide, 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins 2.5
Part, 2.5 parts of poly-β-hybroxybutyric acid, 1 part of benzoyl peroxide, 2,4,6- 1.5 parts of trimethylbenzoyl hexichol oxygen phosphorus, plasticizer
1.5 parts, 1.2 parts of emulsifier, 1.5 parts of dispersing agent.
The plasticizer be melamine, pentachlorophenol, phthalic acid two (2- ethyl hexyl) ester mass ratio 1: 1: 4 it is mixed
Close object；The emulsifier is the mixture of ethylene glycol, nonylphenol polyoxyethylene ether, contracting methylcellulose mass ratio 2: 3: 3；It is described
Dispersing agent is the mixture of sodium lignin sulfonate, dimethyl silicone polymer, vinyl bis-stearamides mass ratio 3: 1: 3.
The preparation method of a degradable urinary bag material the following steps are included:
(1) 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins, poly-β-hybroxybutyric acid is added in high temperature in nano-titanium dioxide
Lower high-speed stirred, it is spare to obtain mixture A；
(2) polylactic acid, polycaprolactone are mixed and adds benzoyl peroxide and starch, 2,4,6- trimethylbenzoyls two
It is spare to obtain mixture B in high temperature and pressure stirring grafting in autoclave for benzene oxygen phosphorus；
(3) above-mentioned mixture B addition mixture A is added into plant fiber, emulsifier, dimethoxybenzoin, acetic acid fibre again
Dimension element, dispersant keep the temperature high-speed stirred, and it is spare to obtain mixture C；
(4) by above-mentioned mixture C be added Sodium Polyacrylate, plasticizer, polyvinyl alcohol in kneading machine high temperature be kneaded, after adopt
A degradable urinary bag material is squeezed out to obtain with extruder.
Wherein, the temperature of high-speed stirred is 80-90 DEG C under step (1) high temperature, speed of agitator 1200-1400r/
Min, mixing time 25-30min；The temperature of step (2) the high temperature high-pressure stirring grafting is 150-160 DEG C, and pressure is
18-20MPa, speed of agitator 200-300r/min, time 60-80min；The temperature of the heat preservation high-speed stirred is 180-
190 DEG C, speed of agitator 800-900r/min, mixing time 30-40min；The temperature of the high-temperature mixing is 230-240
DEG C, mixing time 40-50min, extrusion temperature is 200 DEG C.
Embodiment 4:
The tensile strength and elongation at break of above-described embodiment 1-3 resulting materials are detected, while being detected in soil environment
Product has the degradation situation of no light, as a result as shown in the table:
Present invention gained urinary bag material has good tensile strength and elongation at break as seen from the above table, while can have
Effect degradation, wherein better effect of degrading under illumination condition, meets economic benefit and environmental requirement.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. an a kind of degradable urinary bag material, which is characterized in that a degradable urinary bag material is by following weight
The raw material of part is made: 60-80 parts of polylactic acid, 12-14 parts of polycaprolactone, 2-4 parts of cellulose acetate, 8-10 parts of starch, styrax
4-5 parts of dimethyl ether, 6-10 parts of polyvinyl alcohol, 2-3 parts of plant fiber, 1-3 parts of Sodium Polyacrylate, 4-6 parts of nano-titanium dioxide, 5,
10,15,20- tetra- 2-3 parts of (4- hydroxyphenyl) porphyrins, 2-3 parts of poly-β-hybroxybutyric acid, 0.6-1.4 parts of benzoyl peroxide, 2,4,
1-2 parts of 6- trimethylbenzoyl hexichol oxygen phosphorus, 1-2 parts of plasticizer, 0.8-1.6 parts of emulsifier, 1-2 parts of dispersing agent.
2. the degradable urinary bag material of one kind according to claim 1, it is characterised in that: the plasticizer is trimerization
Cyanamide, pentachlorophenol, phthalic acid two (2- ethyl hexyl) ester mass ratio 1: 1: 4 mixture.
3. the degradable urinary bag material of one kind according to claim 1, it is characterised in that: the emulsifier is second two
Alcohol, nonylphenol polyoxyethylene ether, contracting methylcellulose mass ratio 2: 3: 3 mixture.
4. the degradable urinary bag material of one kind according to claim 1, it is characterised in that: the dispersing agent is wooden
Plain sodium sulfonate, dimethyl silicone polymer, vinyl bis-stearamides mass ratio 3: 1: 3 mixture.
5. a kind of preparation method of a degradable urinary bag material, it is characterised in that: a degradable urinary bag material
Preparation method the following steps are included:
(1) 5,10,15,20- tetra- (4- hydroxyphenyl) porphyrins, the poly-β-hybroxybutyric acid height under high temperature is added in nano-titanium dioxide
Speed stirring, it is spare to obtain mixture A；
(2) polylactic acid, polycaprolactone are mixed and adds benzoyl peroxide and starch, 2,4,6- trimethylbenzoyl hexichol oxygen
It is spare to obtain mixture B in high temperature and pressure stirring grafting in autoclave for phosphorus；
(3) by above-mentioned mixture B addition mixture A add again plant fiber, emulsifier, dimethoxybenzoin, cellulose acetate,
Dispersant keeps the temperature high-speed stirred, and it is spare to obtain mixture C；
(4) Sodium Polyacrylate, plasticizer, polyvinyl alcohol is added in above-mentioned mixture C to be kneaded in kneading machine high temperature, it is rear using crowded
Machine squeezes out to obtain a degradable urinary bag material out.
6. the preparation method of the degradable urinary bag material of one kind according to claim 5, it is characterised in that: the step
Suddenly the temperature of high-speed stirred is 80-90 DEG C, speed of agitator 1200-1400r/min, mixing time 25- under (1) high temperature
30min。
7. the preparation method of the degradable urinary bag material of one kind according to claim 5, it is characterised in that: the step
Suddenly the temperature of (2) high temperature high-pressure stirring grafting is 150-160 DEG C, pressure 18-20MPa, speed of agitator 200-300r/
Min, time 60-80min.
8. the preparation method of the degradable urinary bag material of one kind according to claim 5, it is characterised in that: the guarantor
The temperature of warm high-speed stirred is 180-190 DEG C, speed of agitator 800-900r/min, mixing time 30-40min.
9. the preparation method of the degradable urinary bag material of one kind according to claim 5, it is characterised in that: the height
The temperature that temperature is kneaded is 230-240 DEG C, mixing time 40-50min, and extrusion temperature is 200 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114479393A (en) * | 2021-12-18 | 2022-05-13 | 太仓市缘福汽配有限公司 | Environment-friendly degradable plastic packaging bag and preparation process thereof |
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2019
- 2019-06-10 CN CN201910494896.6A patent/CN110305455A/en active Pending
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| CN102108196A (en) * | 2010-12-30 | 2011-06-29 | 广东上九生物降解塑料有限公司 | Method for preparing polylactic acid degradable material |
| CN108456407A (en) * | 2018-02-08 | 2018-08-28 | 合肥达户电线电缆科技有限公司 | A kind of degradable package material and preparation method thereof |
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| CN114479393A (en) * | 2021-12-18 | 2022-05-13 | 太仓市缘福汽配有限公司 | Environment-friendly degradable plastic packaging bag and preparation process thereof |
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Application publication date: 20191008 |