CN104017263A - High-strength/toughness plastic bottle cap and manufacturing process thereof - Google Patents
High-strength/toughness plastic bottle cap and manufacturing process thereof Download PDFInfo
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Abstract
The invention relates to the technical field of processing of plastic bottle caps and in particular relates to a high-strength/toughness plastic bottle cap and a manufacturing process thereof. The bottle cap is formed by performing injection molding on mixed plastic particles and plastic raw materials, wherein an antibacterial agent is mixed in the mixed plastic particles; the antibacterial agent comprises the following raw materials: zinc chloride, zeolite powder, shell powder, diluent and coupling agent; the plastic raw materials are prepared from inorganic powder, a dispersing agent, a lubricating agent, a coupling agent, a heat stabilizer and a carrier resin; the inorganic powder is a mixture prepared by compounding talcum powder and mica powder according to a mass ratio of 1:1. According to the plastic raw materials, the production cost can be greatly reduced; because the inorganic powder is subjected to special surface coupling activation treatment, after a part of synthetic resin is replaced, the guarant viscosity of the mixed material can be obviously reduced, the extrusion pressure of the system is reduced, and the production efficiency is improved. Meanwhile, because the plastic raw materials have high heat-conducting property, the prepared plastic bottle cap is high in cooling and molding speed, so the product has anisotropism, and the mechanical performance of the product is improved.
Description
Technical field
The present invention relates to plastic bottle closure processing technique field, refer in particular to a kind of high toughness plastic bottle closure and manufacturing process thereof.
Background technology
At present, plastic containers are widely used in industrial production and daily life, particularly be widely used in the packing of various food and medicine products, container closure of plastic, as the auxiliary products of plastic containers, plays important effect equally in the packing of various food and medicine products.In actual applications, the inside and outside portion of food and medicine plastic containers very easily infects and breed bacteria, and the inside and outside of supporting plastic packaging container cover equally also very easily infects and breed bacteria with it.
Bacterial infection in plastic wrapping for food and medicine, can cause food and medicine rotten or shorten packing validity period, and food and medicine very easily makes people intersect with the outer bacterial infection of plastic wrapping to spread germs, affect the healthy of people.
The plastic packaging container cover of existing various food and medicine is by plastic warp compression molding, and the sterilization of product is to complete in machine-shaping process, general cleaning and sterilizing no longer all after machine-shaping.
Because the cleaning and sterilizing of moulding product will be used alcohol, chlorinated lime, hypochlorous acid to receive and the medicament such as hydrogen peroxide or use ultraviolet ray, microwave irradiation or use disinfection with high pressure steam sterilizing.And use alcohol, chlorinated lime, when hypochlorous acid is received and the medicament such as hydrogen peroxide carries out disinfection, easily residual harmful Chemical Composition, is used ultraviolet ray, microwave irradiation or use disinfection with high pressure steam sterilizing, these method for disinfection and sterilization expenses are high, increase cost.Even if adopt these method for disinfection and sterilization, sterilization effect is poor.
In addition, people are not only embodied in structural strength the demand of plastic bottle closure, also have the demand to toughness, and toughness is inadequate, and by directly causing, the stopping property of plastic bottle closure is not high, are difficult to meet the preservation demand to food grade bottled article.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly has higher-strength and toughness, and has plastic bottle closure and the manufacturing process thereof of long-term antibacterial and fungistatic effect.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high toughness plastic bottle closure, injection molded by mixed plastic particles and plastic raw materials, it is characterized in that: in described mixed plastic particles, be mixed with antiseptic-germicide, each raw material weight component of this antiseptic-germicide is 16～20 parts of zinc chloride, 30～50 parts of zeolite powders, 35～48 parts of oyster shell whitings, 26～35 parts of thinners, 9～15 parts of coupling agents;
Described plastic raw materials is prepared from by inorganic powder, dispersion agent, lubricant, coupling agent, thermo-stabilizer and vector resin; Described inorganic powder is that talcum powder and mica powder are by the composite mixture forming of 1 ︰ 1 mass ratio; Described dispersion agent is the mixture of one or more arbitrary proportions in polyethylene wax, EVA wax, solid paraffin and oxidized polyethlene wax; Described lubricant is the mixture of one or more arbitrary proportions in EBS, amine hydroxybenzene and Poly Propylene Wax; Described coupling agent is the mixture of one or more arbitrary proportions in stearic acid, silane coupling agent, titanic acid ester and Aluminate; Described thermo-stabilizer is the mixture of one or more arbitrary proportions in calcium stearate, Zinic stearas and barium stearate; Described vector resin is the mixture of one or more arbitrary proportions in high density polyethylene(HDPE), Low Density Polyethylene and linear low density polyethylene.
High toughness plastic bottle closure is mixed with plastic raw materials by above-mentioned mixed plastic particles, through injection moulding machine, coordinates bottle cap mold injection molded, and wherein mixed plastic particles accounts for 9～12% of gross weight, and plastic raw materials accounts for 88～91% of gross weight.
Preferably, each raw material weight component of described antiseptic-germicide is 17～18 parts of zinc chloride, 38～40 parts of zeolite powders, 37～42 parts of oyster shell whitings, 27～30 parts of thinners, 9～14 parts of coupling agents.
Further preferred, each raw material weight component of described antiseptic-germicide is 18 parts of zinc chloride, 39 parts of zeolite powders, 40 parts of oyster shell whitings, 28 parts of thinners, 11 parts of coupling agents.
Wherein, described thinner is one or both in ethylene glycol or propylene glycol, and described coupling agent is one or both in aminosilane or vinyl silanes.
Preferably, by percentage to the quality, inorganic powder is 75～78% to each raw material of described plastic raw materials, and dispersion agent is 3～4%, and lubricant is 1～3%, and coupling agent is 3～6%, and thermo-stabilizer is 0.8～1.3%, and vector resin is 15～25%.
A kind of manufacturing process of high toughness plastic bottle closure comprises the following steps:
1) each raw material is got the raw materials ready by following mass percent, and inorganic powder is 75～78%, and dispersion agent is 3～4%, and lubricant is 1～3%, and coupling agent is 3～6%, and thermo-stabilizer is 0.8～1.3%, and vector resin is 15～25%;
2) first high-speed mixer is warming up to 110～120 ℃, constant temperature 10～20 minutes;
3) drop into inorganic powder and the coupling agent that step 1) prepares and carry out activation treatment in mixing machine, first start stirring at low speed 1～2min, then start high-speed stirring and mix 5～7min, reach 105～115 ℃ to material temperature;
4) drop into dispersion agent, lubricant and the thermo-stabilizer that step 1) is prepared, continue high-speed stirring until material temperature reaches 115～120 ℃;
5) convert stirring at low speed to, and drop into rapidly the vector resin that step 1) prepares and be uniformly mixed 1～2min, blowing is cooling;
6) step 5) gained material is extruded, is obtained the plastic raw materials that can increase plastic bottle closure intensity, toughness and transparency after granulation, standby;
7) zinc chloride, zeolite powder and oyster shell whiting are mixed by above-mentioned mass fraction, obtain mixed powder, standby;
8) thinner is mixed by ratio of quality and the number of copies 2:1～3:1 with coupling agent, obtain mixing liquid, standby;
9) mixed powder in step 7) is mixed by ratio of quality and the number of copies 1:0.3～1:0.5 with mixing liquid in step 8), add stirrer high speed to stir and obtain antiseptic-germicide, standby;
10) described antiseptic-germicide is penetrated in the plastic raw materials of melted state equably; After evenly mixing, fusion under the condition of 180 ℃～210 ℃, tie rod, cooling, cut-out, make mixed plastic particles;
11) and then by the mixed plastic particles that accounts for gross weight 9～12% mix with the plastic raw materials that accounts for gross weight 88～91%, after evenly mixing, under the condition of 170 ℃～230 ℃, through injection moulding machine injection moulding moulded section, manufacture high toughness plastic bottle closure.
Beneficial effect of the present invention is: the invention provides a kind of high toughness plastic bottle closure, injection molded by mixed plastic particles and plastic raw materials, it is characterized in that: in described mixed plastic particles, be mixed with antiseptic-germicide, its effective antibacterial time can synchronize with the life-span of antibiotic plastic bottle cap.Through Guangdong Province microbiological analysis inspection center, press GB15979-2002 < < appendix C one product antibacterial and bactericidal property and stability test method, Ministry of Health of the People's Republic of China's < < disinfection technology standard in 2002---the Quinn test method in bacteriostatic test > > and the topped method of anti-biotic material (goods) film of japanese food analytic centre formulation are carried out the anti-microbial property that detects antibiotic plastic bottle cap, and detected result antibiotic plastic bottle cap is respectively 99.99% to the antibiotic rate of intestinal bacteria and streptococcus aureus.Skin stimulation test and acute oral toxicity LD50 test, by world economy cooperation and development institution Chemical Analysis standard 1981-404 and 1992-420 standard, are done by Hong Kong SGS company, and assay is nonirritant, nontoxic.
Compared with prior art, plastic raw materials provided by the present invention, with low cost, after Substitute For Partial synthetic resins, can significantly reduce production costs; Plastic raw materials of the present invention, because inorganic powder has wherein passed through special surperficial coupling activation treatment, after Substitute For Partial synthetic resins, can significantly reduce the system viscosity of mixture, reduce system extrusion pressure, enhance productivity, simultaneously because plastic raw materials has high thermal conductivity, prepared plastic bottle closure cooling forming speed, makes product occur anisotropy, contributes to the raising of product mechanical property; Because talcum powder and mica powder particulate have the effect of nucleator in mixed system, change polyolefinic crystallization property in system, thereby significantly improved the heat resisting temperature that adds plastic raw materials plastic bottle closure provided by the present invention, practicality is stronger.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
Embodiment mono-
A kind of high toughness plastic bottle closure, injection molded by mixed plastic particles and plastic raw materials, it is characterized in that: in described mixed plastic particles, be mixed with antiseptic-germicide, each raw material weight component of this antiseptic-germicide is 16 parts of zinc chloride, 50 parts of zeolite powders, 35 parts of oyster shell whitings, 26 parts of thinners, 15 parts of coupling agents; Described plastic raw materials is prepared from by inorganic powder, dispersion agent, lubricant, coupling agent, thermo-stabilizer and vector resin; Described inorganic powder is that talcum powder and mica powder are by the composite mixture forming of 1 ︰ 1 mass ratio;
In the present embodiment, described thinner is ethylene glycol, and described coupling agent is aminosilane, and described dispersion agent is polyethylene wax; Described lubricant is EBS; Described coupling agent is stearic acid; Described thermo-stabilizer is calcium stearate; Described vector resin is high density polyethylene(HDPE).High toughness plastic bottle closure is mixed with plastic raw materials by above-mentioned mixed plastic particles, through injection moulding machine, coordinates bottle cap mold injection molded, and wherein mixed plastic particles accounts for 9% of gross weight, and plastic raw materials accounts for 91% of gross weight.
In the present embodiment, by percentage to the quality, inorganic powder is 75% to each raw material of plastic raw materials, and dispersion agent is 3%, and lubricant is 3%, and coupling agent is 6%, and thermo-stabilizer is 0.8%, and vector resin is 25%.
The antibiotic plastic bottle cap the present invention relates to, its effective antibacterial time can synchronize with the life-span of antibiotic plastic bottle cap.Through Guangdong Province microbiological analysis inspection center, press GB15979-2002 < < appendix C one product antibacterial and bactericidal property and stability test method, Ministry of Health of the People's Republic of China's < < disinfection technology standard in 2002---the Quinn test method in bacteriostatic test > > and the topped method of anti-biotic material (goods) film of japanese food analytic centre formulation are carried out the anti-microbial property that detects antibiotic plastic bottle cap, and detected result antibiotic plastic bottle cap is respectively 99.99% to the antibiotic rate of intestinal bacteria and streptococcus aureus.Skin stimulation test and acute oral toxicity LD50 test, by world economy cooperation and development institution Chemical Analysis standard 1981-404 and 1992-420 standard, are done by Hong Kong SGS company, and assay is nonirritant, nontoxic.
The manufacturing process of above-mentioned high toughness plastic bottle closure comprises the following steps:
1) each raw material is got the raw materials ready by following mass percent, and inorganic powder is 75%, and dispersion agent is 3%, and lubricant is 3%, and coupling agent is 6%, and thermo-stabilizer is 0.8%, and vector resin is 25%;
2) first high-speed mixer is warming up to 110 ℃, constant temperature 20 minutes;
3) drop into inorganic powder and the coupling agent that step 1) prepares and carry out activation treatment in mixing machine, first start stirring at low speed 1min, then start high-speed stirring and mix 7min, reach 105 ℃ to material temperature;
4) drop into dispersion agent, lubricant and the thermo-stabilizer that step 1) is prepared, continue high-speed stirring until material temperature reaches 115 ℃;
5) convert stirring at low speed to, and drop into rapidly the vector resin that step 1) prepares and be uniformly mixed 1min, blowing is cooling;
6) step 5) gained material is extruded, is obtained the plastic raw materials that can increase plastic bottle closure intensity, toughness and transparency after granulation, standby;
7) zinc chloride, zeolite powder and oyster shell whiting are mixed by above-mentioned mass fraction, obtain mixed powder, standby;
8) thinner is mixed by ratio of quality and the number of copies 2:1 with coupling agent, obtain mixing liquid, standby;
9) mixed powder in step 7) is mixed by ratio of quality and the number of copies 1:0.3 with mixing liquid in step 8), add stirrer high speed to stir and obtain antiseptic-germicide, standby;
10) described antiseptic-germicide is penetrated in the plastic raw materials of melted state equably; After evenly mixing, fusion under the condition of 180 ℃～190 ℃, tie rod, cooling, cut-out, make mixed plastic particles;
11) and then by the mixed plastic particles that accounts for gross weight 9% mix with the plastic raw materials that accounts for gross weight 91%, after evenly mixing, under the condition of 170 ℃, through injection moulding machine injection moulding moulded section, manufacture high toughness plastic bottle closure.
Compared with prior art, plastic raw materials provided by the present invention, with low cost, after Substitute For Partial synthetic resins, can significantly reduce production costs; Plastic raw materials of the present invention, because inorganic powder has wherein passed through special surperficial coupling activation treatment, after Substitute For Partial synthetic resins, can significantly reduce the system viscosity of mixture, reduce system extrusion pressure, enhance productivity, simultaneously because plastic raw materials has high thermal conductivity, prepared plastic bottle closure cooling forming speed, makes product occur anisotropy, contributes to the raising of product mechanical property; Because talcum powder and mica powder particulate have the effect of nucleator in mixed system, changed polyolefinic crystallization property in system, thereby significantly improved the heat resisting temperature that adds plastic raw materials plastic bottle closure provided by the present invention; After plastic raw materials provided by the present invention is used in plastic bottle closure, the transparency of plastic bottle closure can decrease, but experimental verification, in low pressure transparent film goods, adding 15% plastic raw materials provided by the present invention does not affect the light transmission of film substantially, and practicality is stronger.
Embodiment bis-
A kind of high toughness plastic bottle closure, injection molded by mixed plastic particles and plastic raw materials, it is characterized in that: in described mixed plastic particles, be mixed with antiseptic-germicide, each raw material weight component of this antiseptic-germicide is 18 parts of zinc chloride, 39 parts of zeolite powders, 40 parts of oyster shell whitings, 28 parts of thinners, 11 parts of coupling agents; Described plastic raw materials is prepared from by inorganic powder, dispersion agent, lubricant, coupling agent, thermo-stabilizer and vector resin; Described inorganic powder is that talcum powder and mica powder are by the composite mixture forming of 1 ︰ 1 mass ratio;
Described dispersion agent is the mixture of polyethylene wax, EVA wax arbitrary proportion; Described lubricant is the mixture of amine hydroxybenzene and Poly Propylene Wax arbitrary proportion; Described coupling agent is the mixture of silane coupling agent, titanic acid ester and Aluminate arbitrary proportion; Described thermo-stabilizer is the mixture of calcium stearate, Zinic stearas arbitrary proportion; Described vector resin is linear low density polyethylene, and described thinner is the mixture of ethylene glycol and propylene glycol, and described coupling agent is the mixture of aminosilane and vinyl silanes.
In the present embodiment, by percentage to the quality, inorganic powder is 76% to each raw material of plastic raw materials, and dispersion agent is 3.5%, and lubricant is 2%, and coupling agent is 4.5%, and thermo-stabilizer is 1.9%, and vector resin is 20%.
The manufacturing process of above-mentioned high toughness plastic bottle closure comprises the following steps:
1) each raw material is got the raw materials ready by following mass percent, and inorganic powder is 76%, and dispersion agent is 3.5%, and lubricant is 2%, and coupling agent is 4.5%, and thermo-stabilizer is 1.9%, and vector resin is 20%;
2) first high-speed mixer is warming up to 115 ℃, constant temperature 15 minutes;
3) drop into inorganic powder and the coupling agent that step 1) prepares and carry out activation treatment in mixing machine, first start stirring at low speed 1.5min, then start high-speed stirring and mix 6min, reach 110 ℃ to material temperature;
4) drop into dispersion agent, lubricant and the thermo-stabilizer that step 1) is prepared, continue high-speed stirring until material temperature reaches 118 ℃;
5) convert stirring at low speed to, and drop into rapidly the vector resin that step 1) prepares and be uniformly mixed 1.5min, blowing is cooling;
6) step 5) gained material is extruded, is obtained the plastic raw materials that can increase plastic bottle closure intensity, toughness and transparency after granulation, standby;
7) zinc chloride, zeolite powder and oyster shell whiting are mixed by above-mentioned mass fraction, obtain mixed powder, standby;
8) thinner is mixed by ratio of quality and the number of copies 2.5:1 with coupling agent, obtain mixing liquid, standby;
9) mixed powder in step 7) is mixed by ratio of quality and the number of copies 1:0.4 with mixing liquid in step 8), add stirrer high speed to stir and obtain antiseptic-germicide, standby;
10) described antiseptic-germicide is penetrated in the plastic raw materials of melted state equably; After evenly mixing, fusion under the condition of 185 ℃～190 ℃, tie rod, cooling, cut-out, make mixed plastic particles;
11) and then by the mixed plastic particles that accounts for gross weight 10% mix with the plastic raw materials that accounts for gross weight 90%, after evenly mixing, under the condition of 195 ℃～205 ℃, through injection moulding machine injection moulding moulded section, manufacture high toughness plastic bottle closure.
The plastic bottle closure that adopts the present embodiment to produce, not only aspect germ resistance and intensity, effect is better, and conveniently also has larger raising in toughness, and effect is optimum.
Embodiment tri-
A kind of high toughness plastic bottle closure, injection molded by mixed plastic particles and plastic raw materials, it is characterized in that: in described mixed plastic particles, be mixed with antiseptic-germicide, each raw material weight component of this antiseptic-germicide is 20 parts of zinc chloride, 30 parts of zeolite powders, 48 parts of oyster shell whitings, 35 parts of thinners, 9 parts of coupling agents;
Described plastic raw materials is prepared from by inorganic powder, dispersion agent, lubricant, coupling agent, thermo-stabilizer and vector resin; Described inorganic powder is that talcum powder and mica powder are by the composite mixture forming of 1 ︰ 1 mass ratio;
Described dispersion agent is the mixture of polyethylene wax, EVA wax, solid paraffin and oxidized polyethlene wax arbitrary proportion;
Described lubricant is the mixture of EBS, amine hydroxybenzene and Poly Propylene Wax arbitrary proportion;
Described coupling agent is the mixture of stearic acid, silane coupling agent, titanic acid ester and Aluminate arbitrary proportion;
Described thermo-stabilizer is the mixture of calcium stearate, Zinic stearas and barium stearate arbitrary proportion;
Described vector resin is the mixture of high density polyethylene(HDPE), Low Density Polyethylene and linear low density polyethylene arbitrary proportion, and described thinner is propylene glycol, and described coupling agent is vinyl silanes.
High toughness plastic bottle closure is mixed with plastic raw materials by above-mentioned mixed plastic particles, through injection moulding machine, coordinates bottle cap mold injection molded, and wherein mixed plastic particles accounts for 12% of gross weight, and plastic raw materials accounts for 88% of gross weight.
The manufacturing process of described high toughness plastic bottle closure comprises the following steps:
1) each raw material is got the raw materials ready by following mass percent, and inorganic powder is 78%, and dispersion agent is 4%, and lubricant is 1%, and coupling agent is 3%, and thermo-stabilizer is 1.3%, and vector resin is 15%;
2) first high-speed mixer is warming up to 120 ℃, constant temperature 10 minutes;
3) drop into inorganic powder and the coupling agent that step 1) prepares and carry out activation treatment in mixing machine, first start stirring at low speed 2min, then start high-speed stirring and mix 5min, reach 115 ℃ to material temperature;
4) drop into dispersion agent, lubricant and the thermo-stabilizer that step 1) is prepared, continue high-speed stirring until material temperature reaches 120 ℃;
5) convert stirring at low speed to, and drop into rapidly the vector resin that step 1) prepares and be uniformly mixed 2min, blowing is cooling;
6) step 5) gained material is extruded, is obtained the plastic raw materials that can increase plastic bottle closure intensity, toughness and transparency after granulation, standby;
7) zinc chloride, zeolite powder and oyster shell whiting are mixed by above-mentioned mass fraction, obtain mixed powder, standby;
8) thinner is mixed by ratio of quality and the number of copies 3:1 with coupling agent, obtain mixing liquid, standby;
9) mixed powder in step 7) is mixed by ratio of quality and the number of copies 1:0.5 with mixing liquid in step 8), add stirrer high speed to stir and obtain antiseptic-germicide, standby;
10) described antiseptic-germicide is penetrated in the plastic raw materials of melted state equably; After evenly mixing, fusion under the condition of 200 ℃～210 ℃, tie rod, cooling, cut-out, make mixed plastic particles;
11) and then by the mixed plastic particles that accounts for gross weight 12% mix with the plastic raw materials that accounts for gross weight 88%, after evenly mixing, under the condition of 230 ℃, through injection moulding machine injection moulding moulded section, manufacture high toughness plastic bottle closure.
Above-described embodiment is preferably implementation of the present invention, and in addition, the present invention can also realize by alternate manner, and under the prerequisite that does not depart from inventive concept of the present invention, any apparent replacement is all within protection scope of the present invention.
Claims (6)
1. one kind high toughness plastic bottle closure, injection molded by mixed plastic particles and plastic raw materials, it is characterized in that: in described mixed plastic particles, be mixed with antiseptic-germicide, each raw material weight component of this antiseptic-germicide is 16～20 parts of zinc chloride, 30～50 parts of zeolite powders, 35～48 parts of oyster shell whitings, 26～35 parts of thinners, 9～15 parts of coupling agents;
Described plastic raw materials is prepared from by inorganic powder, dispersion agent, lubricant, coupling agent, thermo-stabilizer and vector resin; Described inorganic powder is that talcum powder and mica powder are by the composite mixture forming of 1 ︰ 1 mass ratio;
Described dispersion agent is the mixture of one or more arbitrary proportions in polyethylene wax, EVA wax, solid paraffin and oxidized polyethlene wax;
Described lubricant is the mixture of one or more arbitrary proportions in EBS, amine hydroxybenzene and Poly Propylene Wax;
Described coupling agent is the mixture of one or more arbitrary proportions in stearic acid, silane coupling agent, titanic acid ester and Aluminate;
Described thermo-stabilizer is the mixture of one or more arbitrary proportions in calcium stearate, Zinic stearas and barium stearate;
Described vector resin is the mixture of one or more arbitrary proportions in high density polyethylene(HDPE), Low Density Polyethylene and linear low density polyethylene;
Described mixed plastic particles accounts for 9～12% of gross weight, and plastic raw materials accounts for 88～91% of gross weight.
2. a kind of high toughness plastic bottle closure according to claim 1, is characterized in that: each raw material weight component of described antiseptic-germicide is 17～18 parts of zinc chloride, 38～40 parts of zeolite powders, 37～42 parts of oyster shell whitings, 27～30 parts of thinners, 9～14 parts of coupling agents.
3. a kind of high toughness plastic bottle closure according to claim 2, is characterized in that: each raw material weight component of described antiseptic-germicide is 18 parts of zinc chloride, 39 parts of zeolite powders, 40 parts of oyster shell whitings, 28 parts of thinners, 11 parts of coupling agents.
4. a kind of high toughness plastic bottle closure according to claim 1, is characterized in that: described thinner is one or both in ethylene glycol or propylene glycol, and described coupling agent is one or both in aminosilane or vinyl silanes.
5. a kind of high toughness plastic bottle closure according to claim 1, it is characterized in that: each raw material of described plastic raw materials by percentage to the quality, inorganic powder is 75～78%, dispersion agent is 3～4%, lubricant is 1～3%, coupling agent is 3～6%, and thermo-stabilizer is 0.8～1.3%, and vector resin is 15～25%.
6. the manufacturing process of high toughness plastic bottle closure described in claim 1 to 4 any one: it is characterized in that comprising the following steps:
1) each raw material is got the raw materials ready by following mass percent, and inorganic powder is 75～78%, and dispersion agent is 3～4%, and lubricant is 1～3%, and coupling agent is 3～6%, and thermo-stabilizer is 0.8～1.3%, and vector resin is 15～25%;
2) first high-speed mixer is warming up to 110～120 ℃, constant temperature 10～20 minutes;
3) drop into inorganic powder and the coupling agent that step 1) prepares and carry out activation treatment in mixing machine, first start stirring at low speed 1～2min, then start high-speed stirring and mix 5～7min, reach 105～115 ℃ to material temperature;
4) drop into dispersion agent, lubricant and the thermo-stabilizer that step 1) is prepared, continue high-speed stirring until material temperature reaches 115～120 ℃;
5) convert stirring at low speed to, and drop into rapidly the vector resin that step 1) prepares and be uniformly mixed 1～2min, blowing is cooling;
6) step 5) gained material is extruded, is obtained the plastic raw materials that can increase plastic bottle closure intensity, toughness and transparency after granulation, standby;
7) zinc chloride, zeolite powder and oyster shell whiting are mixed by above-mentioned mass fraction, obtain mixed powder, standby;
8) thinner is mixed by ratio of quality and the number of copies 2:1～3:1 with coupling agent, obtain mixing liquid, standby;
9) mixed powder in step 7) is mixed by ratio of quality and the number of copies 1:0.3～1:0.5 with mixing liquid in step 8), add stirrer high speed to stir and obtain antiseptic-germicide, standby;
10) described antiseptic-germicide is penetrated in the plastic raw materials of melted state equably; After evenly mixing, fusion under the condition of 180 ℃～210 ℃, tie rod, cooling, cut-out, make mixed plastic particles;
11) and then by the mixed plastic particles that accounts for gross weight 9～12% mix with the plastic raw materials that accounts for gross weight 88～91%, after evenly mixing, under the condition of 170 ℃～230 ℃, through injection moulding machine injection moulding moulded section, manufacture high toughness plastic bottle closure.
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| CN201410260559.8A CN104017263A (en) | 2014-06-12 | 2014-06-12 | High-strength/toughness plastic bottle cap and manufacturing process thereof |
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| CN109289211A (en) * | 2018-09-12 | 2019-02-01 | 苏州颗粒智能玩具有限公司 | A kind of production method of antibacterial educational toy |
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Address after: Group of villagers Sha Zhen Ren Zhou Cun Yong Mao 523000 Guangdong city of Dongguan Province Applicant after: Jinfu Technology Co., Ltd. Address before: Group of villagers Sha Zhen Ren Zhou Cun, Guangdong city of Dongguan province Dongguan 523999 Yongmao Jinfu Industry Co. Ltd. Applicant before: Jinfu Industry Co., Ltd., Dongyuan City |
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Application publication date: 20140903 |