CN106519446B - A kind of plastic bottle closure resistant to high temperature and its production method - Google Patents
A kind of plastic bottle closure resistant to high temperature and its production method Download PDFInfo
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- CN106519446B CN106519446B CN201611007505.6A CN201611007505A CN106519446B CN 106519446 B CN106519446 B CN 106519446B CN 201611007505 A CN201611007505 A CN 201611007505A CN 106519446 B CN106519446 B CN 106519446B
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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Abstract
The present invention relates to bottle cap technical fields, more particularly to a kind of plastic bottle closure resistant to high temperature and its production method, the plastic bottle closure resistant to high temperature, it is molded by mixed plastic particles, mixed plastic particles are made of following component: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.The plastic bottle closure resistant to high temperature being molded by mixed plastic particles of the invention, it can be 200 DEG C of heatproof, therefore, plastic bottle closure resistant to high temperature 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 resistant to high temperature 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 resistant to high temperature and its production method.
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 resistant to high temperature.
The second object of the present invention is to provide a kind of production of plastic bottle closure resistant to high temperature in view of the deficiencies of the prior art
Method.
One of to achieve the goals above, the present invention adopts the following technical scheme:
A kind of plastic bottle closure resistant to high temperature is provided, is molded by mixed plastic particles, the mixed plastic particles by with
The component of lower parts by weight is made:
80 parts ~ 100 parts of plastics
20 parts ~ 30 parts of ferric hydroxide colloid
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 ferric hydroxide colloid
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 plastic bottle closure resistant to high temperature is provided, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
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) a kind of plastic bottle closure resistant to high temperature provided by the invention, is molded, mixed plastic by mixed plastic particles
Grain is made of following component: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.It is moulded by mixing of the invention
The plastic bottle closure resistant to high temperature that material particle is molded, can be 200 DEG C of heatproof, and therefore, plastic bottle closure resistant to high temperature of the invention is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
(2) production method of a kind of plastic bottle closure resistant to high temperature provided by the invention, ferric hydroxide colloid and silane is even
After joining agent mixing, under the effect of the catalyst, by graft reaction, so that the iron atom in ferric hydroxide colloid is coupled to silane
In coupling agent, reaction product is made, then again disperses the reaction product under molten state under the action of dispersing agent
Plastics in, and then mixed plastic particles are made, then are molded into plastic bottle closure resistant to high temperature by mixed plastic particles, the producer
Plastic bottle closure resistant to high temperature made from method has the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to become
Shape, and then guarantee the sealing performance of plastic bottle closure, substantially reduce product defect rate.
(3) production method of a kind of plastic bottle closure resistant to high temperature 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 resistant to high temperature, is molded by mixed plastic particles, wherein mixed plastic particles are by following heavy
The component of amount number is made:
90 parts of plastics
25 parts of ferric hydroxide colloid
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 above-mentioned plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
A kind of plastic bottle closure resistant to high temperature of the present embodiment, is molded by mixed plastic particles, mixed plastic particles by
Following component is made: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure resistant to high temperature that particle is molded, can be 200 DEG C of heatproof, and therefore, the plastic bottle closure resistant to high temperature of the present embodiment is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
Embodiment 2.
A kind of plastic bottle closure resistant to high temperature, is molded by mixed plastic particles, wherein mixed plastic particles are by following heavy
The component of amount number is made:
80 parts of plastics
30 parts of ferric hydroxide colloid
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 above-mentioned plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
A kind of plastic bottle closure resistant to high temperature of the present embodiment, is molded by mixed plastic particles, mixed plastic particles by
Following component is made: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure resistant to high temperature that particle is molded, can be 200 DEG C of heatproof, and therefore, the plastic bottle closure resistant to high temperature of the present embodiment is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
Embodiment 3.
A kind of plastic bottle closure resistant to high temperature, is molded by mixed plastic particles, wherein mixed plastic particles are by following heavy
The component of amount number is made:
100 parts of plastics
20 parts of ferric hydroxide colloid
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 above-mentioned plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
A kind of plastic bottle closure resistant to high temperature of the present embodiment, is molded by mixed plastic particles, mixed plastic particles by
Following component is made: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure resistant to high temperature that particle is molded, can be 200 DEG C of heatproof, and therefore, the plastic bottle closure resistant to high temperature of the present embodiment is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
Embodiment 4.
A kind of plastic bottle closure resistant to high temperature, is molded by mixed plastic particles, wherein mixed plastic particles are by following heavy
The component of amount number is made:
95 parts of plastics
27 parts of ferric hydroxide colloid
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 above-mentioned plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
A kind of plastic bottle closure resistant to high temperature of the present embodiment, is molded by mixed plastic particles, mixed plastic particles by
Following component is made: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure resistant to high temperature that particle is molded, can be 200 DEG C of heatproof, and therefore, the plastic bottle closure resistant to high temperature of the present embodiment is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
Embodiment 5.
A kind of plastic bottle closure resistant to high temperature, is molded by mixed plastic particles, wherein mixed plastic particles are by following heavy
The component of amount number is made:
85 parts of plastics
22 parts of ferric hydroxide colloid
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 above-mentioned plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
A kind of plastic bottle closure resistant to high temperature of the present embodiment, is molded by mixed plastic particles, mixed plastic particles by
Following component is made: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure resistant to high temperature that particle is molded, can be 200 DEG C of heatproof, and therefore, the plastic bottle closure resistant to high temperature of the present embodiment is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces product defect rate.
Embodiment 6.
A kind of plastic bottle closure resistant to high temperature, is molded by mixed plastic particles, wherein mixed plastic particles are by following heavy
The component of amount number is made:
92 parts of plastics
24 parts of ferric hydroxide colloid
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 above-mentioned plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
A kind of plastic bottle closure resistant to high temperature of the present embodiment, is molded by mixed plastic particles, mixed plastic particles by
Following component is made: plastics, ferric hydroxide colloid, silane coupling agent, catalyst and dispersing agent.By the mixed plastic of the present embodiment
The plastic bottle closure resistant to high temperature that particle is molded, can be 200 DEG C of heatproof, and therefore, the plastic bottle closure resistant to high temperature of the present embodiment is suitable
It shares and carries out high-temperature sterilization after filling food, have the advantages that high-temperature resistant result is good, in high-temperature sterilization process, it is not easy to send out
Change shape, and then guarantees the sealing performance of plastic bottle closure, substantially reduces 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 (6)
1. a kind of production method of plastic bottle closure resistant to high temperature, the plastic bottle closure resistant to high temperature be molded by mixed plastic particles and
At, it is characterised in that: the mixed plastic particles are made of the component of following parts by weight:
The silane coupling agent is γ-(2,3- the third oxygen of epoxy) propyl trimethoxy silicane or γ-aminopropyl-triethoxy silicon
Alkane；
The catalyst is sodium hydroxide solution or potassium hydroxide solution；
The dispersing agent is polyethylene wax or stearmide；
The production method of the plastic bottle closure resistant to high temperature, it the following steps are included:
The first step, the preparation of mixed plastic particles, comprising the following steps:
The ferric hydroxide colloid 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 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 resistant to high temperature.
2. a kind of production method of plastic bottle closure resistant to high temperature according to claim 1, it is characterised in that: the mixing modeling
Material particle is made of the component of following parts by weight:
3. a kind of production method of plastic bottle closure resistant to high temperature according to claim 1, it is characterised in that: the plastics are
PP plastics, HDPE plastic, PET plastic, PC plastic or ABS plastic.
4. a kind of production method of plastic bottle closure resistant to high temperature according to claim 1, it is characterised in that: the hydroxide
The molar concentration of sodium solution is 1mol/L~3mol/L, and the molar concentration of the potassium hydroxide solution is 1mol/L~3mol/L.
5. a kind of production method of plastic bottle closure resistant to high temperature according to claim 1, it is characterised in that: the first step
The step of two in, 60 DEG C~80 DEG C are heated to the mixture that step 1 obtains, then while stirring into the mixture plus
Enter the catalyst of formula ratio, after reacting 10min~20min, reaction product is made.
6. a kind of production method of plastic bottle closure resistant to high temperature according to claim 1, it is characterised in that:
In the step of first 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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|---|---|---|---|---|
| CN107474472A (en) * | 2017-08-31 | 2017-12-15 | 东莞市胜跃实业发展有限公司 | A kind of LED belt reel and its preparation technology using ABS plastic as main material |
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