CN107459734A - Degradable plastic bottle lid and preparation method thereof - Google Patents
Degradable plastic bottle lid and preparation method thereof Download PDFInfo
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- CN107459734A CN107459734A CN201710722163.4A CN201710722163A CN107459734A CN 107459734 A CN107459734 A CN 107459734A CN 201710722163 A CN201710722163 A CN 201710722163A CN 107459734 A CN107459734 A CN 107459734A
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- polyvinyl chloride
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of degradable plastic bottle lid and preparation method thereof, comprise the following steps：First modified polyvinyl chloride, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and OPEO are kneaded, so that micelle M1 is made；Then, the micelle M1 is added in extruder and carries out extrusion molding, processing with the obtained degradable plastic bottle lid；Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder is：110 120 DEG C of feeding section, 120 130 DEG C of stage casing, 180 195 DEG C of extruder head.
Description
Technical field
The present invention relates to field of plastic products, in particular it relates to a kind of degradable plastic bottle lid and preparation method thereof.
Background technology
Plastic products are rather common in daily life, such as：The plastic products such as polybag, plastic bottle.In addition, in life
Plastic bottle closure is needed to use corresponding to all meetings of common various plastic products, and discarded plastic products are difficult degraded, it is long and long
Will produce serious environmental pollution.
And it is current, the preparation technology of most degradable product is complicated, and preparation cost is higher, therefore limits it and enter
One step is promoted the use of.
The content of the invention
It is an object of the invention to provide a kind of degradable plastic bottle lid and preparation method thereof, degradable plastic bottle lid machinery
Excellent performance, and it is degradable, raw material are simple and easy to get, and the polybag is durable, environmentally friendly, suitable for widely using.
To achieve these goals, the invention provides a kind of preparation method of degradable plastic bottle lid, including following step
Suddenly：
First by modified polyvinyl chloride, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and octylphenol polyethylene
Oxygen vinethene is kneaded, so that micelle M1 is made；Then, the micelle M1 is added in extruder and carries out extrusion molding, adds
Work is with the obtained degradable plastic bottle lid；
Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the work of the extruder
Temperature is：110-120 DEG C of feeding section, 120-130 DEG C of stage casing, 180-195 DEG C of extruder head.
Pass through above-mentioned technical proposal, Primary resins material of the present invention selection using modified polyvinyl chloride as polybag, separately
Mixed outside by adding vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and OPEO
Refining, and control the operating temperature of extruder to be：110-120 DEG C of feeding section, 120-130 DEG C of stage casing, 180-195 DEG C of extruder head with
Make obtained polybag that there is excellent mechanical strength, it is durable in use；It is but simultaneously also environmentally friendly, degradable.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
The invention provides a kind of preparation method of degradable plastic bottle lid, comprise the following steps：
First by modified polyvinyl chloride, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and octylphenol polyethylene
Oxygen vinethene is kneaded, so that micelle M1 is made；Then, the micelle M1 is added in extruder and carries out extrusion molding, adds
Work is with the obtained degradable plastic bottle lid；
Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the work of the extruder
Temperature is：110-120 DEG C of feeding section, 120-130 DEG C of stage casing, 180-195 DEG C of extruder head.
In above-mentioned technical proposal, the modification method for preparing of described modified polyvinyl chloride has multiple choices, but in order to carry
While the intensity of plastics made from height and enable to its degradable, therefore preferably, the modified polyvinyl chloride is by following
Method is made：
1) Arizona bacilli, calcium silicates, odium stearate, chitosan, diatomite, ferric stearate, silica and carbon fiber are mixed
Close, be heat-treated, ground sieve series obtains modified filler；
2) by polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and acetic acid second
Ester carries out glue refining so that sizing material is made；
3) modified polyvinyl chloride is made in the sizing material extruding pelletization.
In above-mentioned preparation method, selected in the scope that the condition of the heat treatment can be wide, but in order to improve heat treatment
The readily degradable energy of effect and obtained polybag, it is preferable that the condition of the heat treatment includes：Under nitrogen atmosphere, from room temperature
Start to warm up to 750-800 DEG C and maintain 1h at 750-800 DEG C, wherein, heating rate is 5-8 DEG C/min；Then with 10-15
DEG C/min rate of temperature fall is cooled to 30-35 DEG C；Wherein, N2Flow be 0.001-0.005m3/h。
The particle diameter of the modified filler can select in wide temperature, but in order to improve obtained modified polyvinyl chloride
Readily degradable energy, it is preferable that the average grain diameter of the modified filler be 20-30 μm.
In the present invention, the condition of the glue refining can select in wide scope, but in order to improve the efficiency of glue refining,
Preferably, the condition of the glue refining includes：Temperature is 165-185 DEG C, and/or the time is 2-6h.
In the preparation process of modified filler and modified polyvinyl chloride, the specific dosage of each raw material can be in wide scope
Selection, but in order to improve the readily degradable energy of obtained modified polyvinyl chloride, it is preferable that the Arizona bacilli, calcium silicates, hard
Resin acid sodium, chitosan, diatomite, ferric stearate, the weight ratio of silica and carbon fiber are 10：3-5：1-3：5-10：1-3：2-
4：3-6：2-5；And/or
The polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and acetic acid second
The weight ratio of ester is 100：15-30：2-6：1-3：1.5-3.5：5-10.
In above-mentioned technical proposal, the temperature of the extruding pelletization can select in wide scope, but in order to improve system
Standby efficiency, it is preferable that the temperature of the extruding pelletization is 180-185 DEG C.
In above-mentioned technical proposal, the condition of the mixing extremely can select in wide scope, but be kneaded to improve
Effect and efficiency, it is preferable that the mixing at least meets following condition：Temperature is 120-150 DEG C, and/or the time is 2-4h.
In the present invention, the specific dosage of each raw material can select in wide scope in polybag preparation process, but be
The readily degradable energy of plastics made from improving, it is preferable that the modified polyvinyl chloride, 2,6- three-level butyl -4- methylphenols,
The weight ratio of ethyl acetate, phthalic acid ester and OPEO is 100：1.5-5.5：3-5：5-10：1.1-
2.5。
Present invention also offers degradable plastic bottle lid made from a kind of above-mentioned preparation method.
The present invention will be described in detail by way of examples below.
Preparation example 1
1) Arizona bacilli, calcium silicates, odium stearate, chitosan, diatomite, ferric stearate, silica and carbon fiber are pressed
According to 10：3：1：5：1：2：3：2 weight ratio is mixed, then, under nitrogen atmosphere, N2Flow be 0.001m3/ h, from room temperature
25 DEG C start to be warming up to 750 DEG C with 5 DEG C/min speed and maintain 1h, its n at 750 DEG C；Then with 10 DEG C/min cooling speed
Rate is cooled to 30 DEG C；Finally, ground sieve series obtains the modified filler that particle diameter is 20 μm；
2) by polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and acetic acid second
Ester is according to for 100：15：2：1：1.5：5 weight is than mixing, and glue refines 6h so that sizing material is made at 165 DEG C；
3) by the sizing material, the modified polyvinyl chloride is made in extruding pelletization at 180 DEG C, is denoted as W1.
Preparation example 2
1) Arizona bacilli, calcium silicates, odium stearate, chitosan, diatomite, ferric stearate, silica and carbon fiber are pressed
According to 10：4：2：8：2：3：5：3 weight ratio is mixed, then, under nitrogen atmosphere, N2Flow be 0.003m3/ h, from room temperature
25 DEG C start to be warming up to 800 DEG C with 7 DEG C/min speed and maintain 1h at 800 DEG C；Then dropped with 15 DEG C/min rate of temperature fall
Temperature is to 35 DEG C；Finally, ground sieve series obtains the modified filler that particle diameter is 25 μm；
2) by polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and acetic acid second
Ester is according to for 100：25：4：2：2.5：8 weight is than mixing, and glue refines 4h so that sizing material is made at 175 DEG C；
3) by the sizing material, the modified polyvinyl chloride is made in extruding pelletization at 185 DEG C, is denoted as W2.
Preparation example 3
1) Arizona bacilli, calcium silicates, odium stearate, chitosan, diatomite, ferric stearate, silica and carbon fiber are pressed
According to 10：5：3：10：3：4：6：5 weight ratio is mixed, then, under nitrogen atmosphere, with 8 DEG C/min's since 25 DEG C of the room temperature
Speed is warming up to 800 DEG C and maintains 1h at 800 DEG C；Then 35 DEG C are cooled to 15 DEG C/min rate of temperature fall；Wherein, N2Stream
Measure as 0.005m3/h；Finally, ground sieve series obtains the modified filler that particle diameter is 30 μm；
2) by polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and acetic acid second
Ester is according to for 100：30：6：3：3.5：10 weight is than mixing, and glue refines 2h so that sizing material is made at 185 DEG C；
3) by the sizing material, the modified polyvinyl chloride is made in extruding pelletization at 185 DEG C, is denoted as W3.
Preparation example 4
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W4；Unlike, heated up during heat treatment
Speed is 20 DEG C/min.
Preparation example 5
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W5；Unlike, cool during heat treatment
Speed be 20 DEG C/min.
Preparation example 6
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W6；Unlike, the temperature of the glue refining is 145
℃。
Preparation example 7
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W7；Unlike, the temperature of the glue refining is 200
℃。
Preparation example 8
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W8；The difference is that prepare the raw material of modified filler
In be not added with Arizona bacilli.
Preparation example 9
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W9；The difference is that prepare the raw material of modified filler
In be not added with odium stearate.
Preparation example 10
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W10；The difference is that prepare the raw material of modified filler
In be not added with chitosan.
Preparation example 11
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W11；The difference is that prepare the raw material of modified filler
In be not added with ferric stearate.
Preparation example 12
Modified polyvinyl chloride is made according to the method for preparation example 1, is denoted as W12；The difference is that prepare the raw material of modified filler
In be not added with carbon fiber.
Embodiment 1
First by modified polyvinyl chloride W1, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and octyl phenol
APEO is according to 100：1.2：5：2：1.1 weight ratio, 120 DEG C be kneaded 4h, be made micelle M1；Then, by described in
Micelle M1 is added to extruder, and (operating temperature of extruder is：110 DEG C of feeding section, 120 DEG C of stage casing, 180 DEG C of extruder head) in
Extrusion molding, processing are carried out with the obtained degradable plastic bottle lid；It is denoted as A1.
Embodiment 2
First by modified polyvinyl chloride W2, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and octyl phenol
APEO is according to 100：2.5：7：3：2 weight ratio, 130 DEG C be kneaded 3h, be made micelle M1；Then, by the glue
Grain M1 is added to extruder, and (operating temperature of extruder is：115 DEG C of feeding section, 125 DEG C of stage casing, 190 DEG C of extruder head) in enter
Row extrusion molding, processing are with the obtained degradable plastic bottle lid；It is denoted as A2.
Embodiment 3
First by modified polyvinyl chloride W3, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and octyl phenol
APEO is according to 100：3.2：10：5：2.5 weight ratio, 150 DEG C be kneaded 2h, be made micelle M1；Then, by described in
Micelle M1 is added to extruder, and (operating temperature of extruder is：120 DEG C of feeding section, 130 DEG C of stage casing, 195 DEG C of extruder head) in
Extrusion molding, processing are carried out with the obtained degradable plastic bottle lid；It is denoted as A3.
Embodiment 4
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A4；It is modified polychlorostyrene used in the difference is that
Ethene W4 replaces W1.
Embodiment 5
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A5；It is modified polychlorostyrene used in the difference is that
Ethene W5 replaces W1.
Embodiment 6
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A6；It is modified polychlorostyrene used in the difference is that
Ethene W6 replaces W1.
Embodiment 7
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A7；It is modified polychlorostyrene used in the difference is that
Ethene W7 replaces W1.
Embodiment 8
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A8；It is modified polychlorostyrene used in the difference is that
Ethene W8 replaces W1.
Embodiment 9
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A9；It is modified polychlorostyrene used in the difference is that
Ethene W9 replaces W1.
Embodiment 10
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A10；It is modified poly- used in the difference is that
Vinyl chloride W10 replaces W1.
Embodiment 11
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A11；It is modified poly- used in the difference is that
Vinyl chloride W11 replaces W1.
Embodiment 12
Degradable plastic bottle lid is prepared Following the procedure of Example 1, is denoted as A12；It is modified poly- used in the difference is that
Vinyl chloride W12 replaces W1.
Comparative example 1
Degradable plastic bottle lid is prepared Following the procedure of Example 1 to obtain, is denoted as B1；The difference is that having used polyvinyl chloride generation
W1 is replaced.
Comparative example 2
Degradable plastic bottle lid is prepared Following the procedure of Example 1 to obtain, is denoted as B2；Unlike：The work of the extruder
It is as temperature：110 DEG C of feeding section, 110 DEG C of stage casing, 180 DEG C of extruder head.
Comparative example 3
Degradable plastic bottle lid is prepared Following the procedure of Example 1 to obtain, is denoted as B3；Unlike：The work of the extruder
It is as temperature：120 DEG C of feeding section, 120 DEG C of stage casing, 180 DEG C of extruder head.
Comparative example 4
Degradable plastic bottle lid is prepared Following the procedure of Example 1 to obtain, is denoted as B4；Unlike：The work of the extruder
It is as temperature：180 DEG C of feeding section, 180 DEG C of stage casing, 180 DEG C of extruder head.
Detect example 1
Degradable plastic bottle lid A1-A12 and B1-B4 is subjected to anti-tensile according to national standard GB/T 12914-2008 method
The parameter testing of elongation (δ/%), concrete outcome are shown in Table 1 when intensity (MPa) and fracture.
Detect example 2
According to ASTM-DT7475-11 method test plastic bottle closure A1-A12 and B1-B4 Biodegradation Times, and
And the percentage (%) improved compared to more common igelite bottle cap degradation speed；Concrete outcome is shown in Table 1.
Table 1
| MPa | δ/% | Percentage % | |
| A1 | 28.5 | 4.9 | 61 |
| A2 | 28.7 | 5.0 | 61 |
| A3 | 25.3 | 3.8 | 63 |
| A4 | 20.5 | 3.5 | 55 |
| A5 | 21.6 | 3.6 | 56 |
| A6 | 21.1 | 3.8 | 46 |
| A7 | 22.5 | 3.7 | 48 |
| A8 | 27.2 | 4.3 | 30 |
| A9 | 26.8 | 4.3 | 31 |
| A10 | 26.5 | 4.5 | 25 |
| A11 | 26.1 | 4.1 | 31 |
| A12 | 25.1 | 4.5 | 29 |
| B1 | 28.5 | 4.8 | 0 |
| B2 | 23.9 | 3.3 | 45 |
| B3 | 24.5 | 3.5 | 40 |
| B4 | 24.4 | 3.4 | 35 |
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of preparation method of degradable plastic bottle lid, it is characterised in that comprise the following steps：
First by modified polyvinyl chloride, vinyltrimethoxy silane, ethyl acetate, phthalic acid ester and octyl phenol polyoxy second
Alkene ether is kneaded, so that micelle M1 is made；Then, by the micelle M1 be added in extruder carry out extrusion molding, processing with
The degradable plastic bottle lid is made；
Wherein, the extruder includes feeding section, stage casing and the extruder head being sequentially connected, and the operating temperature of the extruder
For：110-120 DEG C of feeding section, 120-130 DEG C of stage casing, 180-195 DEG C of extruder head.
2. preparation method according to claim 1, wherein, the modified polyvinyl chloride is made by following methods：
1) Arizona bacilli, calcium silicates, odium stearate, chitosan, diatomite, ferric stearate, silica and carbon fiber are mixed, heat
Processing, ground sieve series obtain modified filler；
2) polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and ethyl acetate are entered
The refining of row glue is with obtained sizing material；
3) modified polyvinyl chloride is made in the sizing material extruding pelletization.
3. preparation method according to claim 2, wherein, the condition of the heat treatment includes：Under nitrogen atmosphere, from room temperature
Start to warm up to 750-800 DEG C and maintain 1h at 750-800 DEG C, wherein, heating rate is 5-8 DEG C/min；Then with 10-15
DEG C/min rate of temperature fall is cooled to 30-35 DEG C；Wherein, N2Flow be 0.001-0.005m3/h。
4. preparation method according to claim 2, wherein, the average grain diameter of the modified filler is 20-30 μm.
5. preparation method according to claim 2, wherein, the condition of the glue refining includes：Temperature is 165-185 DEG C, and/
Or the time is 2-6h.
6. according to the preparation method described in any one in claim 2-4, wherein, the Arizona bacilli, calcium silicates, stearic acid
Sodium, chitosan, diatomite, ferric stearate, the weight ratio of silica and carbon fiber are 10：3-5：1-3：5-10：1-3：2-4：3-
6：2-5；And/or
The polyvinyl chloride, the modified filler, alcohol ester-12, tributyl phosphate, PSI and ethyl acetate
Weight ratio is 100：15-30：2-6：1-3：1.5-3.5：5-10.
7. according to the preparation method described in any one in claim 2-4, wherein, the temperature of the extruding pelletization is 180-
185℃。
8. according to the preparation method described in any one in claim 1-4, wherein, the mixing at least meets following condition：
Temperature is 120-150 DEG C, and/or the time is 2-4h.
9. preparation method according to claim 1, wherein, the modified polyvinyl chloride, 2,6- three-level butyl -4- methylbenzenes
Phenol, ethyl acetate, the weight ratio of phthalic acid ester and OPEO are 100：1.2-3.2：5-10：2-5：
1.1-2.5。
10. degradable plastic bottle lid made from the preparation method in a kind of 1-8 as claim described in any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722163.4A CN107459734A (en) | 2017-08-22 | 2017-08-22 | Degradable plastic bottle lid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710722163.4A CN107459734A (en) | 2017-08-22 | 2017-08-22 | Degradable plastic bottle lid and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107459734A true CN107459734A (en) | 2017-12-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106366484A (en) * | 2016-08-26 | 2017-02-01 | 桐城市中汇塑业有限公司 | Medical degradable package bag and preparation method of same |
| CN106496795A (en) * | 2016-11-16 | 2017-03-15 | 湖南金富包装有限公司 | A kind of plastic bottle closure and its production technology |
-
2017
- 2017-08-22 CN CN201710722163.4A patent/CN107459734A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106366484A (en) * | 2016-08-26 | 2017-02-01 | 桐城市中汇塑业有限公司 | Medical degradable package bag and preparation method of same |
| CN106496795A (en) * | 2016-11-16 | 2017-03-15 | 湖南金富包装有限公司 | A kind of plastic bottle closure and its production technology |
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Application publication date: 20171212 |
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