CN101024716A - Method and apparatus for continuous producing functional polyester - Google Patents
Method and apparatus for continuous producing functional polyester Download PDFInfo
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- CN101024716A CN101024716A CN 200610038510 CN200610038510A CN101024716A CN 101024716 A CN101024716 A CN 101024716A CN 200610038510 CN200610038510 CN 200610038510 CN 200610038510 A CN200610038510 A CN 200610038510A CN 101024716 A CN101024716 A CN 101024716A
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Abstract
The invention supplies a method and device to produce continuously functionality polyester that includes the following steps: polyester melt passing through main pipeline inputting commixing device; taking crashing and decentralizing process to functionality particle with auxiliary agent in jet mill; taking commixing process to gain the functionality polyester. The invention has the advantages of simple method, reasonable device structure, easy to operate, stable species, low cost, etc.
Description
Technical field:
The present invention relates to a kind of method and apparatus of continuous production functional polyester.
Background technology:
It is reported there are two kinds as method for making polyester: a kind of is the polymerization of still formula, and another is successive polymerization.The polymerization of still formula can be produced many kinds polyester product, but cost is than higher and polymkeric substance quality instability.For the stabilization of polymer quality that reduces production costs, More and more factories adopts the manufacture method of successive polymerization.But continuous polymerization method gained polyester kind is more single, has limited the exploitation of polyester variety diversity so greatly.
In order to obtain the high functional polyester of added value, people have adopted the polyester blend technology.Existing production in the polyester blend technology, polyester is all delivered to the scene that produces blend with solid form.The production of this polyester generally occurs in apart from far place, blend production scene before described feeding, and process relates to the monomer structure unit is linked into an integrated entity with chemical bond.With solid form polyester being delivered to the blend production scene requires polyester to cool off in production equipment, randomly granulation has reached curing subsequently, the traditional way that this kind is commonly used brings following shortcoming: cooling, and described steps such as curing, granulation, storage, transportation and fusion are with high costs, and formality is various.Moreover desired energy consumption must cause the influence to environment.The fusion of blend components in mixing facilities constitutes this polyester additional exposure at high temperature, and this can cause degraded and the therefore deterioration of the blend quality of production.This is especially serious for the thermo-sensitivity polyester.At last, the polyester that the blend production scene is used carries out drying and may prove necessary before fusion, if any moisture that transportation and storage period are absorbed can cause the polyester in the melt to degrade.
On the other hand, polyester melts the defective that there is the functional particle bad dispersibility in the method for directly adding the functional particles blend in the body, is not suitable for fiber and film product.
Summary of the invention:
The object of the present invention is to provide that a kind of method is simple, easy to operate, the method and apparatus of the measured continuous production functional polyester of continuous production matter.
Technical solution of the present invention is:
A kind of method of continuous production functional polyester is characterized in that: comprise the following steps:
1. the polyester fondant that aggregates in the polymerization unit is imported the co-blended device by main pipe line;
2. functional particles is added dispersion agent earlier and in micronizer mill, pulverize and dispersion treatment, mix in mixing tank with polyester then;
3. the mixture that 2. step obtained adds in the co-blended device of step in 1. blend to be handled, functional polyester.
The polyester of step in 2. is directly to add the polyester slice in the mixing tank or enter molten state polyester the mixing tank from polymerization unit through arm.The raw material consumption of polyester, functional particles and three kinds of components of dispersion agent is by weight percentage: polyester 48%～99.4%, functional particles 0.2%～50%, dispersion agent 0.1%～5%; Polyester is polyethylene terephthalate, poly terephthalic acid 1, ammediol ester or polybutylene terephthalate; Dispersion agent is polyoxyethylene glycol, trimethylolethane, Metallic stearates, polyvinylpyrrolidone or aluminium titanium compound coupling agent.2. in the mixing tank, also being added with oxidation inhibitor in step, is Hinered phenols antioxidant (as oxidation inhibitor IR1010, antioxidant 1076) and phosphite ester kind antioxidant (as oxidation inhibitor TNP, 168), and the consumption of oxidation inhibitor is 0.01～0.5% of a polyester gross weight.Functional particles is the uvioresistant particle of organic or inorganic, fire-retardant particle, moisture absorption particle, conducting particles, antimicrobial particle, infrared rays particle or heat-storing material particle etc., and wherein particle diameter is that nano level distributes to micron order.The 2. middle stream pressure 5～15Kgf/cm that pulverizes usefulness of step
2Powder body after the pulverizing is discharged with air-flow by the air-flow center that imports and is collected, and oversize particle is pulverized once more, and this method processing power is 0.5Kg/hr～1200 Kg/hr.
A kind of equipment of continuous production functional polyester is characterized in that: have the little processing units of particle to be connected with mixing tank, mixing tank is connected with the co-blended device, and mixing tank is connected with continuous polymerization device by main pipe line.
Mixing tank is connected with continuous polymerization device by arm.There is unnecessary polyester output tube to be connected with the person in charge.The mixing tank of functional particles and polyester is the screw mixing tank.The mixing tank of co-blended device and functional particles and polyester, their mixinglength is 20～60:1 with the ratio that mixes diameter, wherein diameter is 20～100 centimetres, preferred 30～70 centimetres.The temperature of molten state polyester is 220～320 ℃, preferred 240～300 ℃.
The inventive method is simple, and device structure is reasonable, and is easy to operate, and modifier component is disperseed homogeneous, stable variety, and the functional polyester quality of production is good, and production cost is low.
Description of drawings:
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the device structure diagrammatic sketch of the embodiment of the invention 1.
Fig. 2 is the device structure diagrammatic sketch of the embodiment of the invention 8.
Fig. 3 is the device structure diagrammatic sketch of the embodiment of the invention 9.
Embodiment:
With terephthalic acid and ethylene glycol is that raw material carries out esterification under 200～260 ℃ of temperature, then 280～300 ℃ of temperature, be lower than and carry out heavily polycondensation under the 300Pa vacuum, continuous production viscosity reaches 0.655 polyethylene terephthalate and (is abbreviated as: PET) melt.Polyethylene terephthalate melt in the continuous polymerization device 1 is under 220～300 ℃ (220 ℃, 240 ℃, 280 ℃, 300 ℃ of examples) in temperature, import co-blended devices 3 with 1000kg/h speed by main pipe line 2, arm 4 is imported screw mixing tank 5 with polyethylene terephthalate simultaneously, and feed rate is 2.5kg/h; The antistatic powder of SH-D2 (functional particles) (the two magnificent chemical novel material in Nantong company limited produces) adds dispersion agent earlier and pulverizes in pulverising mill 12, stream pressure is 6Kgf/cm2, treatment capacity is 2.5kg/h, join in the screw mixing tank 5 by pipeline then, mixture further enters blend processing in the co-blended device 3, gets functional polyester.Blending temperature in the co-blended device 3 is 290 ℃.The antistatic powder of SH-D2 content in making the functional polyalkylene ethylene glycol terephthalate is 0.25%.Dispersion agent is polyoxyethylene glycol (or trimethylolethane, Metallic stearates, polyvinylpyrrolidone, aluminium titanium compound coupling agent), and the consumption of dispersion agent is 0.1～5% (example 0.1%, 2%, 5%) of polyester, function powder (the antistatic powder of SH-D2) and three kinds of total consumptions of raw material of dispersion agent (weight).Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made antistatic fibre.Fiber volume resistivity is 4.5*10
3Ω cm.The screw mixing tank 5 of above-mentioned co-blended device 3 and functional particles and polyester, their mixinglength is 20～60 with the ratio that mixes diameter, and wherein diameter is 20～100 centimetres.
The preparation technology of embodiment 2～7 is as embodiment 1.Its test-results is as follows:
| Test No. | PET feed rate (kg/h) | Arm PET feed rate (kg/h) | SH-D2 powder adding conditional | Fiber volume resistivity (Ω cm) | Breaking tenacity (cN/dte x) | Fracture of wire return the number/ | |||
| Pressure (Kgf/cm2) | Treatment capacity (Kg/hr) | Feed rate (kg/h) | Content (wt%) | ||||||
| |
1000 | 2.5 | 6 | 2.5 | 2.5 | 0.25 | 4.3*10 8 | 3.034 | 0.1 |
| Embodiment 2 | 1000 | 6 | 6.5 | 6 | 6 | 0.6 | 3.9*10 8 | 2.913 | 0.1 |
| Embodiment 3 | 1000 | 21 | 8 | 21 | 21 | 2.1 | 2.4*10 8 | 2.900 | 0.2 |
| Embodiment 4 | 1000 | 415 | 8 | 41.5 | 415 | 4.0 | 1.6*10 8 | 2.824 | 0.2 |
| |
1000 | 64 | 8 | 64 | 64 | 6.4 | 8.2*10 7 | 2.813 | 0.2 |
| |
1000 | 94 | 8 | 94 | 94 | 9.4 | 4.0*10 7 | 2.607 | 0.4 |
| |
1000 | 176 | 12 | 176 | 176 | 15 | 2.9*10 7 | 2.408 | 0.4 |
| Comparative example 1 | 1000 | 64 | - | - | 64 | 6.4 | 1.0*10 8 | 2.576 | 0.4 |
Embodiment 8
With terephthalic acid and ethylene glycol is that raw material carries out esterification under 200～260 ℃ of temperature, then 280～320 ℃ of temperature, be lower than and carry out heavily polycondensation under the 300Pa vacuum, continuous production viscosity reaches 0.655 polyethylene terephthalate and (is abbreviated as: PET) melt.The polyethylene terephthalate melt is under 220～320 ℃ (220 ℃, 240 ℃, 280 ℃, 300 ℃, 320 ℃ of examples) in temperature, supplies with by main pipe line 7 from continuous polymerization device 6 with 1000kg/h speed and enters co-blended device 8.On the other hand, viscosity be the section of 0.655 polyethylene terephthalate with formerly add dispersion agent and in pulverising mill 13 the antistatic powder of SH-D2 after the pulverizing in screw mixing tank 9, mix, in mixing tank, also be added with oxidation inhibitor IR1010 (or antioxidant 1076, oxidation inhibitor TNP, 168), wherein the antistatic powder of SH-D2 is 50% with respect to the weight part of mixture, and mixture is supplied with to co-blended device 8 with 190.5kg/h.Dispersion agent is polyoxyethylene glycol (or trimethylolethane, Metallic stearates, polyvinylpyrrolidone, aluminium titanium compound coupling agent), and the consumption of dispersion agent is 0.1～5% (example 0.1%, 2%, 5%) of polyester, function powder (the antistatic powder of SH-D2) and three kinds of total consumptions of raw material of dispersion agent.The consumption of oxidation inhibitor is 0.01～0.5% (example 0.01%, 0.2%, 0.5%) of polyester gross weight.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made antistatic fibre.Volume specific resistance is 2.9*10
3Ω cm.The screw mixing tank 9 of above-mentioned co-blended device 8 and properties-correcting agent and polyester, their mixinglength is 20～60 with the ratio that mixes diameter, and wherein diameter is 20～100 centimetres.
Embodiment 9:
Have unnecessary polyester output tube 10 to be connected with the person in charge 11, all the other are with embodiment 1.The unnecessary polyester that these distribute can be directly used in spinning, film forming processing or make polyester slice.
Embodiment 10:
The amount ratio of functional particles and polyester is 15～60: 40～85 (examples 15: 85,40: 60,60: 40) by weight in the screw mixing tank 5; The total consumption of raw material of polyester, functional powder and three kinds of components of dispersion agent is polyester 48%～99.4% (example 48%, 70%, 99%) by weight in the whole flow process, functional particles 0.2%～50% (example 50%, 29%, 0.2%), dispersion agent 0.1%～5% (example 5%, 2%, 1%, 0.3%).All the other are with embodiment 1.Polyester is polyethylene terephthalate, poly terephthalic acid 1, ammediol ester or polybutylene terephthalate; Dispersion agent is polyoxyethylene glycol, trimethylolethane, Metallic stearates, polyvinylpyrrolidone or aluminium titanium compound coupling agent.Functional particles is the uvioresistant particle of organic or inorganic, fire-retardant particle, moisture absorption particle, conducting particles, antimicrobial particle, infrared rays particle or heat-storing material particle.
Comparative example 1:
With terephthalic acid and ethylene glycol is that raw material carries out esterification under 200～260 ℃ of temperature, then 280～300 ℃ of temperature, be lower than and carry out heavily polycondensation under the 300Pa vacuum, continuous production viscosity reaches 0.655 polyethylene terephthalate and (is abbreviated as: PET) melt.Polyethylene terephthalate melt in the continuous polymerization device 1 is under 220～300 ℃ (220 ℃, 240 ℃, 280 ℃, 300 ℃ of examples) in temperature, import co-blended devices 3 with 1000kg/h speed by main pipe line 2, arm 4 is imported screw mixing tank 5 with polyethylene terephthalate simultaneously, and feed rate is 64kg/h; The antistatic powder of SH-D2 (the two magnificent chemical novel material in Nantong company limited produces) joins in the screw mixing tank 5 by pipeline, and the blending temperature in the co-blended device 3 is 290 ℃.The antistatic powder of SH-D2 content in making the functional polyalkylene ethylene glycol terephthalate is 12%.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made antistatic fibre.The screw mixing tank 5 of above-mentioned co-blended device 3 and properties-correcting agent and polyester, their mixinglength is 20～60 with the ratio that mixes diameter, and wherein diameter is 20～100 centimetres.
Comparative example 2
Still formula polymeric viscosity is 0.655 polyethylene terephthalate section and the antistatic powder of SH-D2 at L/D is 2 forcing machine blend manufacturing master batches of 44, and blending temperature is 290 ℃.The weight part of the antistatic powder of SH-D2 is 50% in the master batch.Master batch and above-mentioned polyethylene terephthalate section mix manufacturing section particle once more under above-mentioned condition then, and the weight part of the antistatic powder of SH-D2 is 0.5% in this section particle.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.Fiber volume resistivity is 8.7*10
9Ω cm, breaking tenacity 1.762cN/dtex.
Comparative example 3
Still formula polymeric viscosity is 0.655 polyethylene terephthalate section and the antistatic powder of SH-D2 at L/D is 2 forcing machine blend manufacturing master batches of 44, and blending temperature is 290 ℃.The weight part of the antistatic powder of SH-D2 is 50% in the master batch.Master batch and above-mentioned polyethylene terephthalate section mix manufacturing section particle once more under above-mentioned condition then, and the weight part of the antistatic powder of SH-D2 is 18% in this section particle.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.Fiber volume resistivity is 3.5*10
8Ω cm, breaking tenacity 1.542cN/dtex.
Comparative example 4
The viscosity of successive polymerization is 0.655 polyethylene terephthalate section and the antistatic powder of SH-D2 at L/D is 2 forcing machine blend manufacturing master batches of 44, and blending temperature is 290 ℃.The weight part of the antistatic powder of SH-D2 is 50% in the master batch.Master batch and above-mentioned polyethylene terephthalate section mix manufacturing section particle once more under above-mentioned condition then, and the weight part of the antistatic powder of SH-D2 is 4% in this section particle.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.Fiber volume resistivity is 6.5*10
9Ω cm, breaking tenacity 1.624cN/dtex.
Comparative example 5
The viscosity of successive polymerization is 0.655 polyethylene terephthalate section and the antistatic powder of SH-D2 at L/D is 2 forcing machine blend manufacturing master batches of 44, and blending temperature is 290 ℃.The weight part of the antistatic powder of SH-D2 is 50% in the master batch.Master batch and above-mentioned polyethylene terephthalate section mix manufacturing section particle once more under above-mentioned condition then, and the weight part of the antistatic powder of SH-D2 is 18% in this section particle.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.Fiber volume resistivity is 9.7*10
8Ω cm, breaking tenacity 1.447cN/dtex.
Claims (9)
1, a kind of method of continuous production functional polyester is characterized in that: comprise the following steps:
1. the polyester fondant that aggregates in the polymerization unit is imported the co-blended device by main pipe line;
2. functional particles is added dispersion agent earlier and in micronizer mill, pulverize and dispersion treatment, mix in mixing tank with polyester then;
3. the mixture that 2. step obtained adds in the co-blended device of step in 1. blend to be handled, functional polyester.
2, the method for continuous production functional polyester according to claim 1 is characterized in that: the polyester of step in 2. is directly to add the polyester slice in the mixing tank or enter molten state polyester the mixing tank from polymerization unit through arm.
3, the method for continuous production functional polyester according to claim 1 and 2, it is characterized in that: the raw material consumption of polyester, functional particles and three kinds of components of dispersion agent is by weight percentage: polyester 48%～99.4%, functional particles 0.2%～50%, dispersion agent 0.1%～5%; Polyester is polyethylene terephthalate, poly terephthalic acid 1, ammediol ester or polybutylene terephthalate; Dispersion agent is polyoxyethylene glycol, trimethylolethane, Metallic stearates, polyvinylpyrrolidone or aluminium titanium compound coupling agent.
4, the method for continuous production functional polyester according to claim 1 and 2 is characterized in that: functional particles is the uvioresistant particle of organic or inorganic, fire-retardant particle, moisture absorption particle, conducting particles, antimicrobial particle, infrared rays particle or heat-storing material particle.
5, a kind of equipment of continuous production functional polyester is characterized in that: have the little processing units of particle to be connected with mixing tank, mixing tank is connected with the co-blended device, and mixing tank is connected with continuous polymerization device by main pipe line.
6, the equipment of continuous production functional polyester according to claim 5 is characterized in that: mixing tank is connected with continuous polymerization device by arm.
7, according to the equipment of claim 5 or 6 described continuous production functional polyesters, it is characterized in that: have unnecessary polyester output tube to be connected with the person in charge.
8, according to the equipment of claim 5 or 6 described continuous production functional polyesters, it is characterized in that: the mixing tank of functional particles and polyester is the screw mixing tank.
9, according to the equipment of claim 5 or 6 described continuous production functional polyesters, it is characterized in that: the mixing tank of co-blended device and functional particles and polyester, their mixinglength is 20～60: 1 with the ratio that mixes diameter.
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| CN 200610038510 CN101024716A (en) | 2006-02-23 | 2006-02-23 | Method and apparatus for continuous producing functional polyester |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104119652A (en) * | 2014-08-14 | 2014-10-29 | 苏州卓越工程塑料有限公司 | Flame-retardant PET |
| CN104532376A (en) * | 2014-12-12 | 2015-04-22 | 东华大学 | Production device for adding, mixing and modifying polyester melt pipeline |
| CN106810826A (en) * | 2015-11-30 | 2017-06-09 | 江苏华信新材料股份有限公司 | A kind of medical printing substrate and its production technologies of PET |
| CN108948340A (en) * | 2018-06-05 | 2018-12-07 | 浙江聚碳工程技术有限公司 | A kind of device and method preparing aromatic copolycarbonate |
| CN108948341A (en) * | 2018-06-05 | 2018-12-07 | 浙江聚碳工程技术有限公司 | A kind of device and method preparing aromatic copolycarbonate |
| CN109750385A (en) * | 2018-12-29 | 2019-05-14 | 中国纺织科学研究院有限公司 | A kind of continuous process system and preparation method of functional polyester |
| CN109762153A (en) * | 2018-12-29 | 2019-05-17 | 中国纺织科学研究院有限公司 | A kind of preparation method of functional polyester product, preparation system and functional polyester product |
| CN110235659A (en) * | 2019-06-12 | 2019-09-17 | 上海阳柯遮阳技术有限公司 | Effectively insulating thermal screen and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119652A (en) * | 2014-08-14 | 2014-10-29 | 苏州卓越工程塑料有限公司 | Flame-retardant PET |
| CN104532376A (en) * | 2014-12-12 | 2015-04-22 | 东华大学 | Production device for adding, mixing and modifying polyester melt pipeline |
| CN106810826A (en) * | 2015-11-30 | 2017-06-09 | 江苏华信新材料股份有限公司 | A kind of medical printing substrate and its production technologies of PET |
| CN106810826B (en) * | 2015-11-30 | 2019-10-15 | 江苏华信新材料股份有限公司 | A kind of medical printing substrate of PET and its production technology |
| CN108948340A (en) * | 2018-06-05 | 2018-12-07 | 浙江聚碳工程技术有限公司 | A kind of device and method preparing aromatic copolycarbonate |
| CN108948341A (en) * | 2018-06-05 | 2018-12-07 | 浙江聚碳工程技术有限公司 | A kind of device and method preparing aromatic copolycarbonate |
| CN108948341B (en) * | 2018-06-05 | 2021-03-30 | 浙江聚碳工程技术有限公司 | Device and method for preparing aromatic polycarbonate |
| CN109750385A (en) * | 2018-12-29 | 2019-05-14 | 中国纺织科学研究院有限公司 | A kind of continuous process system and preparation method of functional polyester |
| CN109762153A (en) * | 2018-12-29 | 2019-05-17 | 中国纺织科学研究院有限公司 | A kind of preparation method of functional polyester product, preparation system and functional polyester product |
| CN109762153B (en) * | 2018-12-29 | 2021-04-16 | 中国纺织科学研究院有限公司 | Preparation method and preparation system of functional polyester product and functional polyester product |
| CN109750385B (en) * | 2018-12-29 | 2021-08-31 | 中国纺织科学研究院有限公司 | Continuous production system and preparation method of functional polyester |
| CN110235659A (en) * | 2019-06-12 | 2019-09-17 | 上海阳柯遮阳技术有限公司 | Effectively insulating thermal screen and preparation method thereof |
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