CN106633387B - A kind of plastic bottle closure and its production method of good airproof performance - Google Patents
A kind of plastic bottle closure and its production method of good airproof performance Download PDFInfo
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- CN106633387B CN106633387B CN201611007725.9A CN201611007725A CN106633387B CN 106633387 B CN106633387 B CN 106633387B CN 201611007725 A CN201611007725 A CN 201611007725A CN 106633387 B CN106633387 B CN 106633387B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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Abstract
The present invention relates to bottle cap technical fields, more particularly to the plastic bottle closure and its production method of a kind of good airproof performance, the plastic bottle closure of the good airproof performance, it is molded by mixed plastic particles, mixed plastic particles are made of following component: plastics, tetrabutyl titanate, water, silane coupling agent, catalyst and dispersing agent.By the plastic bottle closure for the good airproof performance that mixed plastic particles of the invention are molded, it can be 200 DEG C of heatproof, therefore, the plastic bottle closure of good airproof performance of the invention carries out high-temperature sterilization after being suitable for filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to deform, and then guarantee the sealing performance of plastic bottle closure, substantially reduce product defect rate.The production method of the plastic bottle closure of the good airproof performance has method simple, and production cost is low, and can be suitable for the characteristics of being mass produced.
Description
Technical field
The present invention relates to bottle cap technical fields, and in particular to a kind of plastic bottle closure and its production method of good airproof performance.
Background technique
Currently, plastic bottle closure is widely used in food service industry, plastic bottle closure and bottle body cooperation are used for loading of pieces,
In the processing of filling food, after usually getting well food filling, need to carry out high-temperature sterilization, so that food product can be grown
Time saves and never degenerates.In to the process for carrying out high-temperature sterilization with food of the bottle filling after good, the temperature of high-temperature sterilization
Usually 121 DEG C, the time of high-temperature sterilization is usually 15 minutes ~ 30 minutes.
However, the usual non-refractory of plastic bottle closure in the prior art or effect resistant to high temperature are bad, this kind of bottle cap exists
It in the process of high-temperature sterilization, easily deforms, to influence the sealing performance of bottle cap, causes product defect rate height.
Summary of the invention
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of plastic bottle closure of good airproof performance.
The second object of the present invention is to provide a kind of life of the plastic bottle closure of good airproof performance in view of the deficiencies of the prior art
Production method.
One of to achieve the goals above, the present invention adopts the following technical scheme:
A kind of plastic bottle closure of good airproof performance is provided, is molded by mixed plastic particles, the mixed plastic particles by
The component of following parts by weight is made:
80 parts ~ 100 parts of plastics
20 parts ~ 30 parts of tetrabutyl titanate
5 parts ~ 8 parts of water
5 parts ~ 10 parts of silane coupling agent
0.5 part ~ 2 parts of catalyst
3 parts ~ 7 parts of dispersing agent.
Preferably, the mixed plastic particles are made of the component of following parts by weight:
90 parts of plastics
25 parts of tetrabutyl titanate
6 parts of water
8 parts of silane coupling agent
1 part of catalyst
5 parts of dispersing agent.
The plastics are PP plastics, HDPE plastic, PET plastic, PC plastic or ABS plastic.
The silane coupling agent is γ-(the third oxygen of 2,3- epoxy) three ethoxy of propyl trimethoxy silicane or γ-aminopropyl
Base silane.
The catalyst is sodium hydroxide solution or potassium hydroxide solution.
The molar concentration of the sodium hydroxide solution is 1mol/L ~ 3mol/L, the molar concentration of the potassium hydroxide solution
For 1mol/L ~ 3mol/L.
The dispersing agent is polyethylene wax or stearmide.
To achieve the goals above two, the present invention adopts the following technical scheme:
A kind of production method of the plastic bottle closure of good airproof performance is provided, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to certain temperature to the mixture that step 1 obtains, then while stirring into the mixture
The water and catalyst of formula ratio is added, after a certain period of time, reaction product is made in reaction；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, then merges at a certain temperature, then carry out tie rod, cooling and cut off operation, be made
Mixed plastic particles；
Second step forms mixed plastic particles obtained in the first step through injection molding machine injection molding pressing mold at a certain temperature,
Obtain the plastic bottle closure of the good airproof performance.
In above-mentioned technical proposal, two the step of the first step in, 60 DEG C ~ 80 are heated to the mixture that step 1 obtains
DEG C, the catalyst of formula ratio is then added into the mixture while stirring, after reacting 10min ~ 20min, reaction life is made
At object.
In above-mentioned technical proposal, three the step of the first step in, fusion temperature is 200 DEG C~250 DEG C；
In the second step, mixed plastic particles obtained in the first step are molded at 220 DEG C ~ 260 DEG C through injection molding machine
Pressing mold molding.
Compared with prior art, beneficial effect is the present invention:
(1) plastic bottle closure of a kind of good airproof performance provided by the invention, is molded, mixed plastic by mixed plastic particles
Particle is made of following component: plastics, tetrabutyl titanate, water, silane coupling agent, catalyst and dispersing agent.It is mixed by of the invention
The plastic bottle closure for the good airproof performance that plastic grain is molded is closed, can be 200 DEG C of heatproof, therefore, the modeling of good airproof performance of the invention
Material bottle cap has the advantages that high-temperature resistant result is good suitable for high-temperature sterilization is carried out after filling food, in high-temperature sterilization process,
It is less likely to occur to deform, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
(2) production method of the plastic bottle closure of a kind of good airproof performance provided by the invention, tetrabutyl titanate and silane is even
After joining agent mixing, under the action of water and catalyst, by graft reaction, so that the titanium atom in tetrabutyl titanate is coupled to silicon
In alkane coupling agent, reaction product is made, then disperses molten state under the action of dispersing agent for the reaction product again
Under plastics in, and then mixed plastic particles are made, then be molded by mixed plastic particles the plastic bottle closure of good airproof performance, the life
The plastic bottle closure of good airproof performance made from production method has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to
It deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
(3) production method of the plastic bottle closure of a kind of good airproof performance provided by the invention has method simple, production cost
It is low, and the characteristics of being mass produced can be suitable for.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
Embodiment 1.
A kind of plastic bottle closure of good airproof performance, is molded, wherein mixed plastic particles are by following by mixed plastic particles
The component of parts by weight is made:
90 parts of plastics
25 parts of tetrabutyl titanate
6 parts of water
8 parts of silane coupling agent
1 part of catalyst
5 parts of dispersing agent.
In the present embodiment, plastics are PP plastics.
In the present embodiment, silane coupling agent is γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane.
In the present embodiment, catalyst is sodium hydroxide solution.
In the present embodiment, the molar concentration of sodium hydroxide solution is 2mol/L.
In the present embodiment, dispersing agent is polyethylene wax.
A kind of production method of the plastic bottle closure of above-mentioned good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to 70 DEG C to the mixture that step 1 obtains, is then added while stirring into the mixture
After reacting 15min, reaction product is made in the water and catalyst of formula ratio；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, is then merged at 230 DEG C, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step makes mixed plastic particles obtained in the first step at 240 DEG C through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
A kind of plastic bottle closure of good airproof performance of the present embodiment, is molded, mixed plastic particles by mixed plastic particles
It is made of following component: plastics, tetrabutyl titanate, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure for the good airproof performance that particle is molded, can be 200 DEG C of heatproof, therefore, the plastic bottle of the good airproof performance of the present embodiment
Lid has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, does not allow suitable for high-temperature sterilization is carried out after filling food
It easily deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
Embodiment 2.
A kind of plastic bottle closure of good airproof performance, is molded, wherein mixed plastic particles are by following by mixed plastic particles
The component of parts by weight is made:
80 parts of plastics
30 parts of tetrabutyl titanate
8 parts of water
10 parts of silane coupling agent
2 parts of catalyst
3 parts of dispersing agent.
In the present embodiment, plastics are HDPE plastic.
In the present embodiment, silane coupling agent is γ-aminopropyl triethoxysilane.
In the present embodiment, catalyst is sodium hydroxide solution.
In the present embodiment, the molar concentration of sodium hydroxide solution is 1mol/L.
In the present embodiment, dispersing agent is stearmide.
A kind of production method of the plastic bottle closure of above-mentioned good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to 60 DEG C to the mixture that step 1 obtains, is then added while stirring into the mixture
After reacting 20min, reaction product is made in the water and catalyst of formula ratio；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, is then merged at 200 DEG C, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step makes mixed plastic particles obtained in the first step at 220 DEG C through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
A kind of plastic bottle closure of good airproof performance of the present embodiment, is molded, mixed plastic particles by mixed plastic particles
It is made of following component: plastics, tetrabutyl titanate, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure for the good airproof performance that particle is molded, can be 200 DEG C of heatproof, therefore, the plastic bottle of the good airproof performance of the present embodiment
Lid has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, does not allow suitable for high-temperature sterilization is carried out after filling food
It easily deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
Embodiment 3.
A kind of plastic bottle closure of good airproof performance, is molded, wherein mixed plastic particles are by following by mixed plastic particles
The component of parts by weight is made:
100 parts of plastics
20 parts of tetrabutyl titanate
5 parts of water
5 parts of silane coupling agent
1.5 parts of catalyst
7 parts of dispersing agent.
In the present embodiment, plastics are PET plastic.
In the present embodiment, silane coupling agent is γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane.
In the present embodiment, catalyst is sodium hydroxide solution.
In the present embodiment, the molar concentration of sodium hydroxide solution is 3mol/L.
In the present embodiment, dispersing agent is polyethylene wax.
A kind of production method of the plastic bottle closure of above-mentioned good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to 80 DEG C to the mixture that step 1 obtains, is then added while stirring into the mixture
After reacting 10min, reaction product is made in the water and catalyst of formula ratio；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, is then merged at 250 DEG C, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step makes mixed plastic particles obtained in the first step at 260 DEG C through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
A kind of plastic bottle closure of good airproof performance of the present embodiment, is molded, mixed plastic particles by mixed plastic particles
It is made of following component: plastics, tetrabutyl titanate, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure for the good airproof performance that particle is molded, can be 200 DEG C of heatproof, therefore, the plastic bottle of the good airproof performance of the present embodiment
Lid has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, does not allow suitable for high-temperature sterilization is carried out after filling food
It easily deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
Embodiment 4.
A kind of plastic bottle closure of good airproof performance, is molded, wherein mixed plastic particles are by following by mixed plastic particles
The component of parts by weight is made:
95 parts of plastics
27 parts of tetrabutyl titanate
7 parts of water
9 parts of silane coupling agent
0.5 part of catalyst
4 parts of dispersing agent.
In the present embodiment, plastics are PC plastic.
In the present embodiment, silane coupling agent is γ-aminopropyl triethoxysilane.
In the present embodiment, catalyst is potassium hydroxide solution.
In the present embodiment, the molar concentration of potassium hydroxide solution is 2mol/L.
In the present embodiment, dispersing agent is polyethylene wax.
A kind of production method of the plastic bottle closure of above-mentioned good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to 65 DEG C to the mixture that step 1 obtains, is then added while stirring into the mixture
After reacting 18min, reaction product is made in the water and catalyst of formula ratio；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, is then merged at 210 DEG C, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step makes mixed plastic particles obtained in the first step at 230 DEG C through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
A kind of plastic bottle closure of good airproof performance of the present embodiment, is molded, mixed plastic particles by mixed plastic particles
It is made of following component: plastics, tetrabutyl titanate, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure for the good airproof performance that particle is molded, can be 200 DEG C of heatproof, therefore, the plastic bottle of the good airproof performance of the present embodiment
Lid has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, does not allow suitable for high-temperature sterilization is carried out after filling food
It easily deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
Embodiment 5.
A kind of plastic bottle closure of good airproof performance, is molded, wherein mixed plastic particles are by following by mixed plastic particles
The component of parts by weight is made:
85 parts of plastics
22 parts of tetrabutyl titanate
5 parts of water
7 parts of silane coupling agent
0.8 part of catalyst
6 parts of dispersing agent.
In the present embodiment, plastics are ABS plastic.
In the present embodiment, silane coupling agent is γ-aminopropyl triethoxysilane.
In the present embodiment, catalyst is potassium hydroxide solution.
In the present embodiment, the molar concentration of potassium hydroxide solution is 1mol/L.
In the present embodiment, dispersing agent is stearmide.
A kind of production method of the plastic bottle closure of above-mentioned good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to 75 DEG C to the mixture that step 1 obtains, is then added while stirring into the mixture
After reacting 12min, reaction product is made in the water and catalyst of formula ratio；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, is then merged at 240 DEG C, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step makes mixed plastic particles obtained in the first step at 250 DEG C through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
A kind of plastic bottle closure of good airproof performance of the present embodiment, is molded, mixed plastic particles by mixed plastic particles
It is made of following component: plastics, tetrabutyl titanate, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure for the good airproof performance that particle is molded, can be 200 DEG C of heatproof, therefore, the plastic bottle of the good airproof performance of the present embodiment
Lid has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, does not allow suitable for high-temperature sterilization is carried out after filling food
It easily deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
Embodiment 6.
A kind of plastic bottle closure of good airproof performance, is molded, wherein mixed plastic particles are by following by mixed plastic particles
The component of parts by weight is made:
92 parts of plastics
24 parts of tetrabutyl titanate
6 parts of water
6 parts of silane coupling agent
1.7 parts of catalyst
5 parts of dispersing agent.
In the present embodiment, plastics are PP plastics.
In the present embodiment, silane coupling agent is γ-aminopropyl triethoxysilane.
In the present embodiment, catalyst is potassium hydroxide solution.
In the present embodiment, the molar concentration of potassium hydroxide solution is 3mol/L.
In the present embodiment, dispersing agent is stearmide.
A kind of production method of the plastic bottle closure of above-mentioned good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to 63 DEG C to the mixture that step 1 obtains, is then added while stirring into the mixture
After reacting 17min, reaction product is made in the water and catalyst of formula ratio；
Step 3, after the plastic molting of formula ratio, by reaction product made from the dispersing agent of formula ratio and step 2
It is added in the plastics of molten state, is then merged at 225 DEG C, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step makes mixed plastic particles obtained in the first step at 235 DEG C through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
A kind of plastic bottle closure of good airproof performance of the present embodiment, is molded, mixed plastic particles by mixed plastic particles
It is made of following component: plastics, tetrabutyl titanate, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure for the good airproof performance that particle is molded, can be 200 DEG C of heatproof, therefore, the plastic bottle of the good airproof performance of the present embodiment
Lid has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, does not allow suitable for high-temperature sterilization is carried out after filling food
It easily deforms, and then guarantees the sealing performance of plastic bottle closure, substantially reduce product defect rate.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (9)
1. a kind of production method of the plastic bottle closure of good airproof performance, the plastic bottle closure of the good airproof performance are infused by mixed plastic particles
It moulds, it is characterised in that: the mixed plastic particles are made of the component of following parts by weight:
The production method of the plastic bottle closure of the good airproof performance, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The tetrabutyl titanate and silane coupling agent of formula ratio are sufficiently mixed uniformly, obtain mixture by step 1；
Step 2 is heated to certain temperature to the mixture that step 1 obtains, is then added while stirring into the mixture
After a certain period of time, reaction product is made in the water and catalyst of formula ratio, reaction；
Step 3 adds reaction product made from the dispersing agent of formula ratio and step 2 after the plastic molting of formula ratio
Enter into the plastics of molten state, then merge at a certain temperature, then carry out tie rod, cooling and cut off operation, mixing is made
Plastic grain；
Second step is made by mixed plastic particles obtained in the first step at a certain temperature through injection molding machine injection molding pressing mold molding
Obtain the plastic bottle closure of the good airproof performance.
2. a kind of production method of the plastic bottle closure of good airproof performance according to claim 1, it is characterised in that: the mixing
Plastic grain is made of the component of following parts by weight:
3. a kind of production method of the plastic bottle closure of good airproof performance according to claim 1, it is characterised in that: the plastics
For PP plastics, HDPE plastic, PET plastic, PC plastic or ABS plastic.
4. a kind of production method of the plastic bottle closure of good airproof performance according to claim 1, it is characterised in that: the silane
Coupling agent is γ-(the third oxygen of 2,3- epoxy) propyl trimethoxy silicane or γ-aminopropyl triethoxysilane.
5. a kind of production method of the plastic bottle closure of good airproof performance according to claim 1, it is characterised in that: the catalysis
Agent is sodium hydroxide solution or potassium hydroxide solution.
6. a kind of production method of the plastic bottle closure of good airproof performance according to claim 5, it is characterised in that: the hydrogen-oxygen
The molar concentration for changing sodium solution is 1mol/L~3mol/L, and the molar concentration of the potassium hydroxide solution is 1mol/L~3mol/
L。
7. a kind of production method of the plastic bottle closure of good airproof performance according to claim 5, it is characterised in that: the dispersion
Agent is polyethylene wax or stearmide.
8. a kind of production method of the plastic bottle closure of good airproof performance according to claim 1, it is characterised in that: described first
In the step of step two, 60 DEG C~80 DEG C are heated to the mixture that step 1 obtains, then while stirring into the mixture
The catalyst of formula ratio is added, after reacting 10min~20min, reaction product is made.
9. a kind of production method of the plastic bottle closure of good airproof performance according to claim 1, it is characterised in that: described first
In the step of step three, fusion temperature is 200 DEG C~250 DEG C；
In the second step, mixed plastic particles obtained in the first step are molded pressing mold through injection molding machine at 220 DEG C~260 DEG C
Molding.
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| CN109081989A (en) * | 2018-07-17 | 2018-12-25 | 安徽鼎泓包装有限公司 | A kind of plastic bottle closure masterbatch and preparation method thereof |
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| CN103980653A (en) * | 2014-05-27 | 2014-08-13 | 东莞市金富实业有限公司 | High-strength antibacterial plastic bottle cap and manufacturing process thereof |
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