CN103589183A - Reprocessing method for producing antibacterial film by waste thermosetting plastics - Google Patents
Reprocessing method for producing antibacterial film by waste thermosetting plastics Download PDFInfo
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- CN103589183A CN103589183A CN201310550322.9A CN201310550322A CN103589183A CN 103589183 A CN103589183 A CN 103589183A CN 201310550322 A CN201310550322 A CN 201310550322A CN 103589183 A CN103589183 A CN 103589183A
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Abstract
The invention belongs to the field of machinery manufacture and in particular relates to a reprocessing method for waste thermosetting plastics. The method comprises the following steps: carrying out grinding, impurity removal, catalytic hydrocracking, modification, vacuum defoamation and shaping on waste plastics, adding 1%-2% of a coupler, 1%-2% of a compatilizer and 5%-10% of a plant source antibacterial compound, and mixing for modifying, wherein the coupler is amino silane, the compatilizer is maleic anhydride, the plant source antibacterial compound is superfine talcum powder, and the content of the superfine talcum powder is 10%-30%. After the waste thermosetting plastics are subjected to a series of processes to produce the antibacterial film, wastes are recycled, the waste thermosetting plastics are purified, the environmental pollution is reduced, the heat resistance, the wear resistance and the flame resistance of the reproduction plastics are improved, and the market application is wide.
Description
Technical field
The invention belongs to mechanical manufacturing field, be specifically related to a kind of process for subsequent treatment that utilizes thermoset waste plastic to produce 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 process for subsequent treatment that utilizes thermoset waste plastic to produce 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 thermoset waste plastic that utilizes of turning waste into wealth and produce the process for subsequent treatment of antibacterial film.
To achieve these goals, the present invention realizes by the following technical solutions:
1. utilize thermoset waste plastic to produce a process for subsequent treatment 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% and plant-source antibacterial mixture 5%～10% mix and blend to carry out modification in reactor, described coupling agent is aminosilane, described compatilizer is maleic anhydride, and described plant-source antibacterial mixture preparation method 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-source antibacterial mixture;
5) vacuum defoamation: reactor is evacuated, takes the air dissolving in liquid plastic away, slough the bubble in liquid plastic;
6) sizing: emit liquid plastic and mix from reactor, by above-mentioned each composition mixing melting mixing in two roller mills, temperature is 120-160 ℃;
C 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 thermoset waste plastic that utilizes is produced in the process for subsequent treatment of antibacterial film, described step 2) in, in the mixture of described ethanol and ether, ethanol: ether=4:3.
Above-mentioned utilization in the process for subsequent treatment that thermoset waste plastic produces antibacterial film, described step 4) in, described in to add coupling agent, compatilizer and plant-source antibacterial mixture to carry out modification condition be vacuum stirring.
The above-mentioned thermoset waste plastic that utilizes is produced in the process for subsequent treatment of antibacterial film, described step 4) in, described superfine talcum powder silane treatment.
Beneficial effect: the present embodiment is known in practical application, the present invention is waste recycling not only, 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 plant-source antibacterial mixture not only can reduce costs but also can improve plastics performance.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:
2. utilize thermoset waste plastic to produce a process for subsequent treatment 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% and plant-source antibacterial mixture 5%～10% mix and blend to carry out modification in reactor, described coupling agent is aminosilane, described compatilizer is maleic anhydride, and described plant-source antibacterial mixture preparation method 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-source antibacterial mixture;
5) vacuum defoamation: reactor is evacuated, takes the air dissolving in liquid plastic away, slough the bubble in liquid plastic;
6) sizing: emit liquid plastic and mix from reactor, by above-mentioned each composition mixing melting mixing in two roller mills, temperature is 120-160 ℃;
C 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.
In the present embodiment, the coupling agent of selecting in modification procedure is aminosilane, and compatilizer is maleic anhydride,
Embodiment 2: all the other are identical with described embodiment 1, difference is, first vacuum cooling 3h in step 6), cooling 3h again, in the present embodiment, gained plastic flame effect is slightly poorer than embodiment 1, but the mixture consumption of Al (OH) 3, eight bromo ether and Mg (OH) 2 is low, does not affect result of use.
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 is waste recycling not only, 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 plant-source antibacterial mixture not only can reduce costs but also can improve plastics performance.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 thermoset waste plastic to produce a process for subsequent treatment 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% and plant-source antibacterial mixture 5%～10% mix and blend to carry out modification in reactor, described coupling agent is aminosilane, described compatilizer is maleic anhydride, and described plant-source antibacterial mixture preparation method 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-source antibacterial mixture;
5) vacuum defoamation: reactor is evacuated, takes the air dissolving in liquid plastic away, slough the bubble in liquid plastic;
6) sizing: emit liquid plastic and mix from reactor, by above-mentioned each composition mixing melting mixing in two roller mills, temperature is 120-160 ℃;
C 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 process for subsequent treatment that utilizes thermoset waste plastic to produce 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 process for subsequent treatment that utilizes thermoset waste plastic to produce antibacterial film according to claim 1, is characterized in that described step 4) in, described in to add coupling agent, compatilizer and plant-source antibacterial mixture to carry out modification condition be vacuum stirring.
4. the process for subsequent treatment that utilizes thermoset waste plastic to produce antibacterial film according to claim 1, is characterized in that described step 4) in, described superfine talcum powder silane treatment.
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| CN201310550322.9A CN103589183A (en) | 2013-11-08 | 2013-11-08 | Reprocessing method for producing antibacterial film by waste thermosetting plastics |
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| CN201310550322.9A CN103589183A (en) | 2013-11-08 | 2013-11-08 | Reprocessing method for producing antibacterial film by waste thermosetting plastics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336392A (en) * | 2017-06-15 | 2017-11-10 | 刘硕 | A kind of degradable edible wrapping film process units of zeins |
Citations (2)
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| US20080213328A1 (en) * | 2007-03-02 | 2008-09-04 | Yao-Nien Chung | Nanosilver-containing preservation articles, and the preparation process and the uses thereof |
| 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 |
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- 2013-11-08 CN CN201310550322.9A patent/CN103589183A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080213328A1 (en) * | 2007-03-02 | 2008-09-04 | Yao-Nien Chung | Nanosilver-containing preservation articles, and the preparation process and the uses thereof |
| 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 |
Non-Patent Citations (3)
| Title |
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| 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 医药卫生科技辑》 * |
| 王文广等: ""废旧热固性塑料的回收利用"", 《塑料科技》 * |
| 黄发荣等: "《高分子材料的循环利用》", 31 January 2000, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336392A (en) * | 2017-06-15 | 2017-11-10 | 刘硕 | A kind of degradable edible wrapping film process units of zeins |
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Application publication date: 20140219 |