CN103613946A - Method for preparing antibacterial thin film from waste plastics - Google Patents
Method for preparing antibacterial thin film from waste plastics Download PDFInfo
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- CN103613946A CN103613946A CN201310549765.6A CN201310549765A CN103613946A CN 103613946 A CN103613946 A CN 103613946A CN 201310549765 A CN201310549765 A CN 201310549765A CN 103613946 A CN103613946 A CN 103613946A
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention belongs to the machine manufacturing field, and specifically relates to a method for preparing an antibacterial thin film from waste plastics. The method comprises the following steps: enabling the waste plastics to be subjected to six steps of treatment including crushing, impurity removal, catalytic hydrocracking, modification, vacuum defoaming and setting, adding 1%-2% of coupling agent, 1%-2% of compatilizer and 5%-10% of inorganic filler, and mixing and stirring all the materials for modification, wherein the coupling agent is aminosilane; the compatilizer is maleicanhydride; the inorganic filler is ultrafine talcum powder; and the content of the ultrafine talcum powder is 10%-30%. The waste materials are reutilized through a series of treatment performed on thermosetting waste plastics, and the thermosetting waste plastics are purified so that the environmental pollution is reduced; moreover, the heat resistance, the wear resistance and the fire resistance of the regenerated plastics are improved; and the regenerated plastics can be widely applied in the market.
Description
Technical field
The invention belongs to mechanical manufacturing field, be specifically related to a kind of method of utilizing waste plastic to prepare antibacterial film.
Background technology
Thermosetting resin is many owing to having advantage, as low in price, and shearing modulus and Young's modulus are high, good rigidly, hardness are high is widely used in the productions such as electrical equipment and electronic industry, machinery, vehicle sliding members, sealing element and tableware, is widely used.But thermosetting resin is in the process of processing, between macromole, form crosslinking structure, its goods have insoluble not molten feature, for a long time, people think that waste thermosetting plastics can not recycle always, thereby are used as refuse treatment, not only cause environmental pollution but also expend a large amount of manpowers, the present invention proposes a kind of method of utilizing waste plastic to prepare antibacterial film, has solved problem of environmental pollution and has utilized again resource.
Summary of the invention
For the deficiency existing in prior art, the invention provides a kind of waste plastic that utilizes of turning waste into wealth and prepare the method for antibacterial film.
To achieve these goals, the present invention realizes by the following technical solutions:
Utilize waste plastic to prepare a method for antibacterial film, comprise the steps:
1) pulverize: the plastics particulate that thermoset waste plastic is ground into 50～80um;
2) removal of impurities: by plastics particulate respectively successively with mixture, acetone and the deionized water of ethanol and ether respectively in industrial ultrasonic machine ultrasound filtration clean removal of impurities 15min, more sequentially clean twice with 120# gasoline and deionized water;
3) shortening cracking: the plastics particulate cleaning is put into reactor, 450 ℃, hydrocracking 30min under the condition of catalyzer, stirring, can obtain 80% small molecules liquid, polyaddition reaction occurs monomer in its small molecular liquid is again liquid plastics, and described catalyzer is that gac is loaded with platinum;
4) modification: add coupling agent 1%～2%, compatilizer 1%～2%, the antibacterial mixture 8-10% of plant-sourced and mineral filler 5%～10% mix and blend to carry out modification in reactor, described coupling agent is aminosilane, described compatilizer is maleic anhydride, described mineral filler is superfine talcum powder, and the content of superfine talcum powder is 10%～30%; The preparation method of the described antibacterial mixture of plant-sourced is:
Huang Dingju, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Herba Agerati Conyzoidis, Rhizoma Alpiniae Officinarum, garlic, Sheep's-parsley, water are mixed according to the mass fraction proportioning of 20-25:15-20:10-15: 10-15:8-10:8-10:5-7:10-20, add the cellulase of (unit of activity of 10 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 30 ℃, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 50%～70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 45～56 ℃, ultrasonic frequency are that 20～30kHz, supersound extraction time are 1～2 hour, then by solidliquid mixture suction filtration under 20～30kPa vacuum condition, get filtrate underpressure distillation under 15～25kPa vacuum, 45～50 ℃ of conditions and obtain plant-sourced compound disinfectant;
5) vacuum defoamation: reactor is evacuated, takes the air dissolving in liquid plastic away, slough the bubble in liquid plastic;
6) sizing: emit melting mixing in the extremely two roller mills of liquid plastic from reactor, temperature is 120-160 ℃; Moulding, adopts plastic film blowing machine to extrude blown film, obtains product;
Described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, be controlled at respectively 180～200 ℃, barrel front-end temperature divides four sections of controls, be controlled at respectively 210～230 ℃, head temperature divides two sections of controls, is controlled at respectively 220～240 ℃, and blow-up ratio is 1.5～2.0, screw speed 20～40r/min, pulling speed 10～50m/min.
The above-mentioned waste plastic that utilizes is prepared in the method for antibacterial film, described step 2) in, in the mixture of described ethanol and ether, ethanol: ether=4:3.
The above-mentioned waste plastic that utilizes is prepared in the method for antibacterial film, described step 4) in, described in to add coupling agent, compatilizer and mineral filler to carry out modification condition be vacuum stirring.
The above-mentioned waste plastic that utilizes is prepared in the method for antibacterial film, described step 4) in, described superfine talcum powder silane treatment.
Beneficial effect: thermoset waste plastic process is pulverized, removal of impurities, shortening cracking, modification, vacuum defoamation, the processing of six steps of sizing, not only waste recycling, and purification thermoset waste plastic, reduce environmental pollution, increase regeneration and produce the thermotolerance of plastics, wear resistance and flame retardant resistance, market application is wide, in pulverizing, pulverize plastics particulate particle diameter suitable, without using meticulous instrument, process, in removal of impurities, remove the water-soluble and lipid-soluble substance on thermoset waste plastic surface, improve thermoset waste plastic quality, in modification, add coupling agent can carry out surface-active-treatment, add compatilizer can promote between each base polymer compatible, add mineral filler not only can reduce costs but also can improve plastics performance, superfine talcum powder promotes the consistency between plastics by silane treatment, in vacuum defoamation, vacuum defoamation increases plastics compactness, when liquid plastic becomes half-dried, sprinkle Al (OH) 3, the mixture of eight bromo ether and Mg (OH) 2 is adsorbed in frosting, play the effect of fire-retardant anti-carbonization.There is thin-film material, the environmental protection of sterilization effect and there is fungistatic effect; Harmless to people, animal.In addition, the present invention fills a prescription rationally, and preparation method is simple.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
Embodiment 1:
1) pulverize: the plastics particulate that thermoset waste plastic is ground into 50～80um;
2) removal of impurities: by plastics particulate respectively successively with mixture, acetone and the deionized water of ethanol and ether respectively in industrial ultrasonic machine ultrasound filtration clean removal of impurities 15min, more sequentially clean twice with 120# gasoline and deionized water;
3) shortening cracking: the plastics particulate cleaning is put into reactor, 450 ℃, hydrocracking 30min under the condition of catalyzer, stirring, can obtain 80% small molecules liquid, polyaddition reaction occurs monomer in its small molecular liquid is again liquid plastics, and described catalyzer is that gac is loaded with platinum;
4) modification: add coupling agent 1%～2%, compatilizer 1%～2%, the antibacterial mixture 8-10% of plant-sourced and mineral filler 5%～10% mix and blend to carry out modification in reactor, described coupling agent is aminosilane, described compatilizer is maleic anhydride, described mineral filler is superfine talcum powder, and the content of superfine talcum powder is 10%～30%; The preparation method of the described antibacterial mixture of plant-sourced is:
Huang Dingju, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Herba Agerati Conyzoidis, Rhizoma Alpiniae Officinarum, garlic, Sheep's-parsley, water are mixed according to the mass fraction proportioning of 20-25:15-20:10-15: 10-15:8-10:8-10:5-7:10-20, add the cellulase of (unit of activity of 10 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 30 ℃, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 50%～70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 45～56 ℃, ultrasonic frequency are that 20～30kHz, supersound extraction time are 1～2 hour, then by solidliquid mixture suction filtration under 20～30kPa vacuum condition, get filtrate underpressure distillation under 15～25kPa vacuum, 45～50 ℃ of conditions and obtain plant-sourced compound disinfectant;
5) vacuum defoamation: reactor is evacuated, takes the air dissolving in liquid plastic away, slough the bubble in liquid plastic;
6) sizing: emit melting mixing in the extremely two roller mills of liquid plastic from reactor, temperature is 120-160 ℃; Moulding, adopts plastic film blowing machine to extrude blown film, obtains product;
Described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, be controlled at respectively 180～200 ℃, barrel front-end temperature divides four sections of controls, be controlled at respectively 210～230 ℃, head temperature divides two sections of controls, is controlled at respectively 220～240 ℃, and blow-up ratio is 1.5～2.0, screw speed 20～40r/min, pulling speed 10～50m/min.
Embodiment 2: all the other are identical with described embodiment 1, and difference is, first vacuum cooling 3h in step 6), more cooling 3h.
Embodiment 3: all the other are identical with described embodiment 1, and difference is, does not use catalyzer in step 3), and its hydrocracking efficiency obviously reduces, and the same time can only obtain 30% small molecules liquid, and amount obviously reduces.
The present embodiment is known in practical application, the present invention pulverizes thermoset waste plastic process, removal of impurities, shortening cracking, modification, vacuum defoamation, the processing of six steps of sizing, not only waste recycling, and purification thermoset waste plastic, reduce environmental pollution, increase regeneration and produce the thermotolerance of plastics, wear resistance and flame retardant resistance, market application is wide, in pulverizing, pulverize plastics particulate particle diameter suitable, without using meticulous instrument, process, in removal of impurities, remove the water-soluble and lipid-soluble substance on thermoset waste plastic surface, improve thermoset waste plastic quality, in modification, add coupling agent can carry out surface-active-treatment, add compatilizer can promote between each base polymer compatible, add mineral filler not only can reduce costs but also can improve plastics performance, superfine talcum powder promotes the consistency between plastics by silane treatment, in vacuum defoamation, vacuum defoamation increases plastics compactness, when liquid plastic becomes half-dried, sprinkle Al (OH) 3, the mixture of eight bromo ether and Mg (OH) 2 is adsorbed in frosting, play the effect of fire-retardant anti-carbonization.There is thin-film material, the environmental protection of sterilization effect and there is fungistatic effect; Harmless to people, animal.In addition, the present invention fills a prescription rationally, and preparation method is simple.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. utilize waste plastic to prepare a method for antibacterial film, it is characterized in that, comprise the steps:
1) pulverize: the plastics particulate that thermoset waste plastic is ground into 50～80um;
2) removal of impurities: by plastics particulate respectively successively with mixture, acetone and the deionized water of ethanol and ether respectively in industrial ultrasonic machine ultrasound filtration clean removal of impurities 15min, more sequentially clean twice with 120# gasoline and deionized water;
3) shortening cracking: the plastics particulate cleaning is put into reactor, 450 ℃, hydrocracking 30min under the condition of catalyzer, stirring, can obtain 80% small molecules liquid, polyaddition reaction occurs monomer in its small molecular liquid is again liquid plastics, and described catalyzer is that gac is loaded with platinum;
4) modification: add coupling agent 1%～2%, compatilizer 1%～2%, the antibacterial mixture 8-10% of plant-sourced and mineral filler 5%～10% mix and blend to carry out modification in reactor, described coupling agent is aminosilane, described compatilizer is maleic anhydride, described mineral filler is superfine talcum powder, and the content of superfine talcum powder is 10%～30%; The preparation method of the described antibacterial mixture of plant-sourced is:
Huang Dingju, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Herba Agerati Conyzoidis, Rhizoma Alpiniae Officinarum, garlic, Sheep's-parsley, water are mixed according to the mass fraction proportioning of 20-25:15-20:10-15: 10-15:8-10:8-10:5-7:10-20, add the cellulase of (unit of activity of 10 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 30 ℃, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 50%～70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 45～56 ℃, ultrasonic frequency are that 20～30kHz, supersound extraction time are 1～2 hour, then by solidliquid mixture suction filtration under 20～30kPa vacuum condition, get filtrate underpressure distillation under 15～25kPa vacuum, 45～50 ℃ of conditions and obtain plant-sourced compound disinfectant;
5) vacuum defoamation: reactor is evacuated, takes the air dissolving in liquid plastic away, slough the bubble in liquid plastic;
6) sizing: emit melting mixing in the extremely two roller mills of liquid plastic from reactor, temperature is 120-160 ℃; Moulding, adopts plastic film blowing machine to extrude blown film, obtains product;
Described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, be controlled at respectively 180～200 ℃, barrel front-end temperature divides four sections of controls, be controlled at respectively 210～230 ℃, head temperature divides two sections of controls, is controlled at respectively 220～240 ℃, and blow-up ratio is 1.5～2.0, screw speed 20～40r/min, pulling speed 10～50m/min.
2. the method for utilizing waste plastic to prepare antibacterial film according to claim 1, is characterized in that, described step 2) in, in the mixture of described ethanol and ether, ethanol: ether=4:3.
3. the method for utilizing waste plastic to prepare antibacterial film according to claim 1, is characterized in that, described step 4) in, described in to add coupling agent, compatilizer and mineral filler to carry out modification condition be vacuum stirring.
4. the method for utilizing waste plastic to prepare antibacterial film according to claim 1, is characterized in that, described step 4) in, described superfine talcum powder silane treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310549765.6A CN103613946A (en) | 2013-11-08 | 2013-11-08 | Method for preparing antibacterial thin film from waste plastics |
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| CN201310549765.6A CN103613946A (en) | 2013-11-08 | 2013-11-08 | Method for preparing antibacterial thin film from waste plastics |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108912586A (en) * | 2018-07-24 | 2018-11-30 | 合肥万之景门窗有限公司 | A kind of preparation method preparing printed material using discarded ABS plastic |
| CN110774401A (en) * | 2018-07-31 | 2020-02-11 | 王正雄 | Method and apparatus for manufacturing fibre suction pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0363127A (en) * | 1989-08-02 | 1991-03-19 | Oike Ind Co Ltd | Transparent high-barrier plastic film |
| CN1062918A (en) * | 1991-01-04 | 1992-07-22 | 山西省永济县福利塑化总厂 | Waste or used plastics is produced the method for petroleum products |
| CN101041725A (en) * | 2006-03-24 | 2007-09-26 | 陈书怡 | Reproduction new method for waste elastomer and plastic |
| CN101543243A (en) * | 2009-04-20 | 2009-09-30 | 于凯 | Special nano-antibacterial fresh-keeping film for papayas, and manufacturing method thereof |
| CN102190825A (en) * | 2010-03-12 | 2011-09-21 | 周刚 | Preparation methods for antibacterial plastic master batches and product |
| CN102395456A (en) * | 2009-04-17 | 2012-03-28 | 奥地利埃瑞玛再生工程机械设备有限公司 | Method for recycling plastic materials |
-
2013
- 2013-11-08 CN CN201310549765.6A patent/CN103613946A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0363127A (en) * | 1989-08-02 | 1991-03-19 | Oike Ind Co Ltd | Transparent high-barrier plastic film |
| CN1062918A (en) * | 1991-01-04 | 1992-07-22 | 山西省永济县福利塑化总厂 | Waste or used plastics is produced the method for petroleum products |
| CN101041725A (en) * | 2006-03-24 | 2007-09-26 | 陈书怡 | Reproduction new method for waste elastomer and plastic |
| CN102395456A (en) * | 2009-04-17 | 2012-03-28 | 奥地利埃瑞玛再生工程机械设备有限公司 | Method for recycling plastic materials |
| CN101543243A (en) * | 2009-04-20 | 2009-09-30 | 于凯 | Special nano-antibacterial fresh-keeping film for papayas, and manufacturing method thereof |
| CN102190825A (en) * | 2010-03-12 | 2011-09-21 | 周刚 | Preparation methods for antibacterial plastic master batches and product |
Non-Patent Citations (4)
| Title |
|---|
| 姚超等: ""酶解结合超声波技术对杨梅核中低含量黄酮类化合物的提取纯化"", 《浙江大学学报（农业与生命科学版）》 * |
| 尹礼: ""黄顶菊中黄酮类物质分离纯化方法的研究"", 《中国优秀硕士学位论文全文数据库（电子期刊），医药卫生科技辑》 * |
| 张玉霞: ""热固性塑料回收利用技术"", 《中国塑料》 * |
| 王文广等: ""废旧热固性塑料的回收利用"", 《塑料科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108912586A (en) * | 2018-07-24 | 2018-11-30 | 合肥万之景门窗有限公司 | A kind of preparation method preparing printed material using discarded ABS plastic |
| CN110774401A (en) * | 2018-07-31 | 2020-02-11 | 王正雄 | Method and apparatus for manufacturing fibre suction pipe |
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Application publication date: 20140305 |