CN101139458A - Method and equipment for continuous production of antistatic polyester - Google Patents
Method and equipment for continuous production of antistatic polyester Download PDFInfo
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- CN101139458A CN101139458A CNA2006100414943A CN200610041494A CN101139458A CN 101139458 A CN101139458 A CN 101139458A CN A2006100414943 A CNA2006100414943 A CN A2006100414943A CN 200610041494 A CN200610041494 A CN 200610041494A CN 101139458 A CN101139458 A CN 101139458A
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Abstract
The invention discloses a method and an equipment for producing continuously anti-static polyester. The method comprises: delivering through a main pipe the polyester melt polymerized in a polymerizing device into an alloying device, adding some anti-static mother particles into the alloying device, and alloying them. The equipment comprises a continuous polymerizing device, which is connected with an alloying device through a main pipe. A hopper containing the anti-static mother particles is connected with the alloying device through the pipe. The invention has a simple method, reasonable equipment structure, and is easy to operate. The anti-static components are evenly dispersed, the type is steady. The produced polyester is of high quality and low production cost.
Description
Technical field:
The present invention relates to a kind of production method and equipment of antistatic polyester.
Background technology:
Trevira is to use synthon the most widely, but because its water absorbability is poor, and than resistance height, electrostatic phenomenon is serious, makes troubles for production and use, has limited its range of application.Therefore, the research and development of antistatic fibre have become one of important subject of textile field.
In textiles processing or use, filamentary material all can produce electrification phenomenon each other or with other object contact frictions, if electric charge constantly accumulates and fails to eliminate and will cause various electrostatic phenomenons.Static makes the textiles processing difficulties, and easily dust suction is stain, twined attached human body or clothes, and the electrical spark of generation of static electricity can set off an explosion and fire.The anlistatig approach of fabric has: static inhibitor is added fibrous inside or anchors at fiber surface.Metal is that the electro-conductive fiber feel is poor, obvolvent difficulty, blending difficulty; To make the electro-conductive fiber fastness relatively poor to synthetic fiber modified for spray-gun process and sedimentation.
And have 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 antistatic polyester, 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, and the traditional way that this kind is commonly used brings following shortcoming: cooling, described steps such as curing, granulation, storage, transportation and fusion, with high costs, 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 all can cause the polyester in the melt to degrade.
Summary of the invention:
The object of the present invention is to provide a kind of method simple, easy to operate, the polyester of production has the method and apparatus of the continuous production antistatic polyester of antistatic property.
Technical solution of the present invention is:
A kind of method of continuous production antistatic 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. antistatic master granule is added in the co-blended device of step in 1. blend and handles, antistatic polyester.
The raw material consumption of polyester, two kinds of components of antistatic master granule is by weight percentage: polyester 97%～99.5%, antistatic master granule 0.5%～3%; Polyester is polyethylene terephthalate, Poly(Trimethylene Terephthalate) or polybutylene terephthalate.
Antistatic master granule is block polyetheramides, and wherein the content of polyoxyethylene glycol is 20%～60%.Block polyetheramides is the co-polymer (production of workshop, Dongli Ltd. three island) of nylon 6, polyoxyethylene glycol, phthalyl hexanediamine, static auxiliary agent and heat-resistant agent, its proportion of composing is respectively by weight: nylon 6 is 25～75%, polyoxyethylene glycol is 20～60%, the phthalyl hexanediamine is 1～5%, static auxiliary agent Sodium dodecylbenzene sulfonate is 2～5%, and heat-resistant agent SR-2 is 2～5%.Phthalyl hexanediamine structural formula is as follows:
A kind of equipment of continuous production antistatic polyester is characterized in that: continuous polymerization device is arranged, and continuous polymerization device is by main pipe line mixing device connection together, and the hopper of dress antistatic master granule is by pipeline mixing device connection together.
There is unnecessary polyester output tube to be connected with main pipe line.The mixinglength of co-blended device is 20～60: 1 with the ratio that mixes diameter.
The molten state polyester is a poly terephthalic acid alkane diol ester, preferred polyethylene terephthalate, polybutylene terephthalate or poly terephthalic acid 1, ammediol ester, especially preferred polyethylene terephthalate.The temperature of molten state polyester is 220～320 ℃.
The inventive method is simple, and device structure is reasonable, and is easy to operate, and antistatic composition disperses homogeneous, stable variety, and the 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 utility model embodiment 1～6.
Fig. 2 is the device structure diagrammatic sketch of the utility model embodiment 7.
Embodiment:
Embodiment 1
With terephthalic acid and ethylene glycol is that raw material carries out esterification under 200～260 ℃ of (200 ℃, 230 ℃, 260 ℃ of examples) temperature, then 280～300 ℃ of (280 ℃, 290 ℃, 300 ℃ of examples) 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, antistatic master granule joins in the hopper 6, be connected with the polyester main pipe line by pipeline, feed rate is 5kg/h.Mixture further enters blend processing in the co-blended device 3, gets antistatic polyester.Blending temperature in the co-blended device 3 is 280 ℃.Antistatic master granule content in the antistatic polyethylene terephthalate that makes is 0.5%.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made antistatic fibre, the ratio resistance of fiber is 9 * 10
8Ω cm.Above-mentioned co-blended device 3 mixinglengths are 20～60 with the ratio that mixes diameter: 1 (example 20: 1,40: 1,60: 1), wherein diameter is 20～100 centimetres.Antistatic master granule is nylon 6, polyoxyethylene glycol, the co-polymer of phthalyl hexanediamine, static auxiliary agent and heat-resistant agent (production of workshop, Dongli Ltd. three island), it is respectively that nylon 6 is 42% that its proportion of composing calculates by weight, polyoxyethylene glycol is 45%, the phthalyl hexanediamine is 3%, static auxiliary agent Sodium dodecylbenzene sulfonate is identical with heat-resistant agent SR-2 adding proportion, all is 5%.
The preparation technology of embodiment 2～5 is as embodiment 1.Its test-results is as follows:
| Test No. | PET feed rate (kg/h) | Antistatic master granule feed rate (kg/h) | Antistatic master granule content (wt%) | Than resistance (Ω cm) | Breaking tenacity (cN/dtex) |
| Embodiment 1 | 1000 | 5 | 0.5 | 9×10 8 | 3.9 |
| |
1000 | 7 | 0.7 | 8×10 8 | 3.9 |
| |
1000 | 10 | 1 | 3×10 8 | 3.8 |
| Embodiment 4 | 1000 | 15 | 1.5 | 2×10 8 | 3.7 |
| |
1000 | 31 | 3 | 0.8×10 8 | 3.5 |
With terephthalic acid and ethylene glycol is that raw material carries out esterification under 200～260 ℃ of (200 ℃, 230 ℃, 260 ℃ of examples) temperature, then 280～300 ℃ of (280 ℃, 290 ℃, 300 ℃ of examples) 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, imports co-blended devices 3 with 1000kg/h speed by main pipe line 2; Join in the hopper 6 after antistatic master granule and oxidation inhibitor IR1010 (or antioxidant 1076, oxidation inhibitor TNP, 168) mix, be connected with the polyester main pipe line by pipeline, feed rate is 5kg/h.Mixture further enters blend processing in the co-blended device 3, gets antistatic polyester.Blending temperature in the co-blended device 3 is 280 ℃.Antistatic master granule content in making antistatic polyethylene terephthalate is 0.5%.Oxidation inhibitor IR1010 consumption is 0.01～0.5% (example 0.01%, 0.3%, 0.5%) of weight polyester.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made antistatic fibre.The ratio resistance of fiber is 8 * 10
8Ω cm.The mixinglength of above-mentioned co-blended device 3 is 20～60 with the ratio that mixes diameter: 1 (example 20: 1,40: 1,60: 1), wherein diameter is 20～100 centimetres.Antistatic master granule is block polyetheramides, be nylon 6, polyoxyethylene glycol, the phthalyl hexanediamine, the co-polymer of static auxiliary agent and heat-resistant agent (production of workshop, Dongli Ltd. three island), its proportion of composing is respectively by weight: nylon 6 is 25～75% (examples 25%, 50%, 75%), polyoxyethylene glycol is 20～60% (examples 60%, 41%, 20%), the phthalyl hexanediamine is 1～5% (example 5%, 3%, 1%), static auxiliary agent Sodium dodecylbenzene sulfonate is 2～5% (examples 5%, 3%, 2%), heat-resistant agent SR-2 is 2～5% (examples 5%, 3%, 2%), each the component sum in the above-mentioned antistatic master granule is 100%.
Embodiment 7:
The synthetic polyester fondant is polyethylene terephthalate or polybutylene terephthalate or poly terephthalic acid 1 in the polymerization unit, the ammediol ester; The raw material consumption of polyester, two kinds of components of antistatic master granule is by weight percentage: polyester 97%～99.5% (example 97%, 98%, 99.5%), antistatic master granule 0.5%～3% (example 3%, 2%, 0.5%).Have unnecessary polyester output tube 4,5 to be connected with the person in charge in the equipment, all the other are with embodiment 1.Hopper 7 is arranged among the figure.The unnecessary polyester that these distribute can be directly used in spinning, film forming processing or make polyester slice.
Comparative example 1
Still formula polymeric viscosity is 0.655 polyethylene terephthalate section and antistatic master granule at L/D is 2 forcing machine blend of 44, and blending temperature is 280 ℃.The weight part of antistatic master granule is 0.7% in the blended slice.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.The ratio resistance of fiber is 10 * 10
8Ω cm, breaking tenacity 3.2～3.4cN/dtex.Still formula polymeric chipping qualities heterogeneity, viscosity is also non-constant, so the antistatic property and the intensity difference of the antistatic property of resulting polymers and strength ratio continuous polymer.
Comparative example 2
Still formula polymeric viscosity is 0.655 polyethylene terephthalate section and antistatic master granule at L/D is 2 forcing machine blend of 44, and blending temperature is 280 ℃.The weight part of antistatic master granule is 1.5% in the blended slice.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.The ratio resistance of fiber is 9 * 10
8Ω cm, breaking tenacity 3.0～3.2cN/dtex.Still formula polymeric chipping qualities heterogeneity, viscosity is also non-constant, so the antistatic property and the intensity difference of the antistatic property of resulting polymers and strength ratio continuous polymer.
Comparative example 3
The viscosity of successive polymerization is 0.655 polyethylene terephthalate section and antistatic master granule at L/D is 2 forcing machine blend of 44, and blending temperature is 280 ℃.The weight part of antistatic master granule is 0.7% in the blended slice.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.The ratio resistance of fiber is 9 * 10
8Ω cm, breaking tenacity 3.7cN/dtex.Section need be carried out drying, and the moisture content in the section should be lower than 0.02%, is preferably lower than 0.005%.The moisture entrapment amount is big more, and the polymer performance of extrusion moulding is poor more.And drying process increases the cost of producing anti-electrostatic polymer.
Comparative example 4
The viscosity of successive polymerization is 0.655 polyethylene terephthalate section and antistatic master granule at L/D is 2 forcing machine blend of 44, and blending temperature is 280 ℃.The weight part of antistatic master granule is 1.5% in the blended slice.Adopt common spinning-drawing machine to carry out conventional spinning then and draft process is made fiber.The ratio resistance of fiber is 4 * 10
8Ω cm, breaking tenacity 3.5cN/dtex.Section need be carried out drying, and the moisture content in the section should be lower than 0.02%, is preferably lower than 0.005%.The moisture entrapment amount is big more, and the polymer performance of extrusion moulding is poor more.And drying process increases the cost of producing anti-electrostatic polymer.
Testing method
Than the testing method of resistance is that laboratory sample is placed on respectively after the constant temperature damping makes sample reach moisture equilibrium among 20 ℃ of 40RH and the 20 ℃ of 60RH, measures the resistance and the calculation result of sample with ultra-high resistance ultra micro current measurement meter pressurization 1000V.Calculation formula is as follows:
Than resistance=(resistance * fiber number)/(9 * 10
5* specimen length * sample density)
The breaking tenacity testing method is according to GB/T3923.2-1998 textile fabric tensile property part 2: the mensuration grab method of ultimate strength.
Claims (7)
1. the method for a continuous production antistatic 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. antistatic master granule is added in the co-blended device of step in 1. blend and handles, antistatic polyester.
2. the method for continuous production antistatic polyester according to claim 1 is characterized in that: the raw material consumption of polyester, two kinds of components of antistatic master granule is by weight percentage: polyester 97%～99.5%, antistatic master granule 0.5%～3%; Polyester is polyethylene terephthalate, Poly(Trimethylene Terephthalate) or polybutylene terephthalate.
3. the method for continuous production antistatic polyester according to claim 1 and 2 is characterized in that: antistatic master granule is block polyetheramides, and wherein the content of polyoxyethylene glycol is 20%～60%.
4. the method for continuous production antistatic polyester according to claim 3, it is characterized in that: block polyetheramides is the co-polymer of nylon 6, polyoxyethylene glycol, phthalyl hexanediamine, static auxiliary agent and heat-resistant agent, its proportion of composing is respectively by weight: nylon 6 is 25～75%, polyoxyethylene glycol is 20～60%, the phthalyl hexanediamine is 1～5%, static auxiliary agent Sodium dodecylbenzene sulfonate is 2～5%, and heat-resistant agent SR-2 is 2～5%.
5. the equipment of a continuous production antistatic polyester is characterized in that: continuous polymerization device is arranged, continuous polymerization device by main pipe line together mixing device connect, the hopper of dress antistatic master granule by pipeline together mixing device connect.
6. the equipment of continuous production antistatic polyester according to claim 5 is characterized in that: have unnecessary polyester output tube to be connected with main pipe line.
7. according to the equipment of claim 5 or 6 described continuous production antistatic polyesters, it is characterized in that: the mixinglength of co-blended device is 20～60: 1 with the ratio that mixes diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100414943A CN101139458A (en) | 2006-09-08 | 2006-09-08 | Method and equipment for continuous production of antistatic polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100414943A CN101139458A (en) | 2006-09-08 | 2006-09-08 | Method and equipment for continuous production of antistatic polyester |
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| Publication Number | Publication Date |
|---|---|
| CN101139458A true CN101139458A (en) | 2008-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100414943A Pending CN101139458A (en) | 2006-09-08 | 2006-09-08 | Method and equipment for continuous production of antistatic polyester |
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|---|---|
| CN (1) | CN101139458A (en) |
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Application publication date: 20080312 |