CS205441B1 - Cleaning mixture for plastioworking machines - Google Patents
Cleaning mixture for plastioworking machines Download PDFInfo
- Publication number
- CS205441B1 CS205441B1 CS785226A CS522678A CS205441B1 CS 205441 B1 CS205441 B1 CS 205441B1 CS 785226 A CS785226 A CS 785226A CS 522678 A CS522678 A CS 522678A CS 205441 B1 CS205441 B1 CS 205441B1
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- Czechoslovakia
- Prior art keywords
- parts
- weight
- mixture
- machines
- cleaning
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims description 21
- 238000004140 cleaning Methods 0.000 title claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 7
- 229920002554 vinyl polymer Polymers 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 229920006237 degradable polymer Polymers 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 235000019809 paraffin wax Nutrition 0.000 description 3
- 235000019271 petrolatum Nutrition 0.000 description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- UMKARVFXJJITLN-UHFFFAOYSA-N lead;phosphorous acid Chemical compound [Pb].OP(O)O UMKARVFXJJITLN-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 238000012667 polymer degradation Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Predmet vynálezu sa týká zmesi na báze vinylových polymérov vhodnej pre čistenie spracovateTských strojov, hlavně vytláčacích, pri spracovaní teplom lahko degradovateTných polymérov.The present invention relates to a vinyl polymer-based composition suitable for the cleaning of processing machines, in particular extruders, in the treatment of thermally readily degradable polymers.
V súčásnej době ori přerušení výroby na spracovateTských strojoch pri spracovaní teplom Tahko degradovateTných polymérov, napr. PVC zmesi, je potřebné spracovateTské zariadenie dokonale vyčistiť, a tak zabrániť degradáoii polyméru, ako aj korozii spracovateTského zariadenia, hlavně valcov a závitoviek spracovateTských stro.iov, vytláčacích hláv a hubíc. Pri čistění týchto zariadení je často potřebné niektoré časti rozobratf a po vyčistění znova zložiť, čo je značné pracné a znižuje sa využitelný časový fond zariadenia.Currently, the production is interrupted on heat treatment machines for heat-degradable polymers, e.g. PVC mixtures, the processing equipment needs to be thoroughly cleaned in order to prevent polymer degradation as well as corrosion of the processing equipment, especially the rollers and worms of the processing machines, extrusion heads and nozzles. When cleaning these devices, it is often necessary to disassemble some parts and reassemble after cleaning, which is laborious and reduces the useful time of the device.
Známy 1e aj sofsob Čistenia spracovateTských zariadení bez rozobrania strojov vytláčaním teplom Tahko degradovateTného polyméru polyolefínmi. Dochádza tu však k ich nalepe.niu na spracovateTské časti zariadenia. V ďalšom priebehu výroby sa polyolefiny po častiach odlupujú, a tak sa dostávajú do polymérnej taveniny teplom, Tahko degradovateTného polyméru, pričom zhoršujú vlastnosti výrobkov.It is also known to purify process equipment without disassembling machines by extruding thermally degradable polymer with polyolefins. However, they are adhered to the processing part of the apparatus. In the further course of the production, the polyolefins are peeled off in portions and thus enter the polymer melt by heat, a degradable polymer, deteriorating the properties of the products.
Predmetom tohto vynálezu je čistiaca zmes pre spracovateTské stroje, s výhodou vytláčaoie, na báze zmesi vinylových polymérov, ktorá obsahuje na 100 hmotových dielov vinylových polymérov o K-hodnote 58 až 72, mastivá na báze organických zlúčenín v množstve 0,5 až 10 hmotových dielov, 2 až 20 hmotových dielov plniv, s výhodou povrchovo upravených uhličitanov a stabilizátorov na báze zlúčenín kovov II. a IV. skupiny neriodickej sústavy prvkov v množstve aspoň o 50 Λ vyššoro, ako je obsah stabilizátorov v spracovávanej zmesi.The present invention provides a cleaning composition for processing machines, preferably extrusion, based on a mixture of vinyl polymers containing, per 100 parts by weight of vinyl polymers having a K-value of 58 to 72, organic compound lubricants in an amount of 0.5 to 10 parts by weight. 2 to 20 parts by weight of fillers, preferably surface-treated carbonates and metal compound stabilizers II. and IV. groups of the non-periodic array of elements at least 50 Λ higher than the stabilizer content of the mixture to be treated.
Čistiaca zmes, ktorá je predmetom tohto vynalezu sa vyznačuje jednak vyšším obsahom stabilizátorov, zabraňujúcich teoelnej degradáoii vinylových polymérov pri dlhodobom tepe Inom namáhaní, a jednak vyšším obsahom plniv a mastív ako sa bežne používajú v spracovávaných zmesiach vinylových polymérov.The cleaning composition of the present invention is characterized by a higher content of stabilizers to prevent the physical degradation of vinyl polymers under long-term pulse stress, and a higher content of fillers and lubricants than are commonly used in processed vinyl polymer blends.
Výhodou použitia uvedenej čistiacej zmesi pre spracovateTské stroje pri spracovaní teplom Tahko degradovateTných polymérov je zabránenie degradácie polymérov v spracovatels-r kých zariadeniach, a tým aj korózii technologických častí, zvýši sa produktívny časový fond zariadení bez rozoberania jednotlivých technologických častí a zabezpečí sa 1’ahký náběh pri zahájení výroby.The advantage of using this cleaning composition for processing machines in heat treatment. The highly degradable polymers are to prevent the degradation of the polymers in the processing equipment and thus to the corrosion of the technological parts, increase the productive time of the equipment without disassembling the individual technological parts and ensure easy start-up. at the start of production.
Příklad 1Example 1
Na dvojzávitovkovom stroji sa spřacováva suchá zmes PVC o zložení 100 hmot. dielov suspenzného PVC o K-hodnote 68, 2,8 hmot. dielov stabilizátore obsahujúceho bazické sírany olova, 0,3 hmot. dielov mastiva na báze parafinických voskov, 1 hmot. diel uhličitanu vápenatého ako plniva na rúry, pri teplotách 185 °C, 180 °C, 170 °C, 165 °C, 1óO°C nastavených v jednotlivých zónách, počnúc od násypky a na hubici 180 °G. Pri odstavovaní strojaOn a twin-screw machine, a dry PVC composition of 100 wt. parts of suspension PVC having a K-value of 68, 2.8 wt. 0.3 parts by weight of a stabilizer containing basic lead sulphates; parts by weight of paraffin wax, 1 wt. % of calcium carbonate as a filler for pipes at temperatures of 185 ° C, 180 ° C, 170 ° C, 165 ° C, 10 ° C set in each zone, starting from the hopper and at a 180 ° G nozzle. When shutting down the machine
5 441 sa uvedená zmes vytlačí čistiacou zmesou o zložení 100 hmot. dielov suspenzného PVC o K-hodnote 68,6 hmot. dielov stabilizátora obsahu,júceho bazické sírany olova, 3 hmot. diely mastív na báze stearanu vápenatého a parafinických voskov a 10 hmot. dielov plniva na báze uhličitanu vápenatého pri uvedených spracovateTských teplotách alebo pri nižších teplotách 150 °C, 145 °G, 140 °C, 140 °C, 140 °C nastavených v jednotlivých zónách počnúc od násypky a na hubici 150 °C pri nižších otáčkách závitovky po dokonalom vyčistění, čo ie možné zistiť odlišnou farbou zmesí, sa stroj vypne. Pri náběhu zariadenia sa stroj vyhřeje na požadované spracovatelské teploty, čistiaca zmes sa vytlačí spraoovatelskou zmesou a nastavia sa ostatné požadované technologické parametre.No. 5,441, the mixture is extruded with a 100 wt. parts of suspension PVC having a K-value of 68.6 wt. parts by weight of a content stabilizer containing basic lead sulphates, 3 wt. parts by weight of calcium stearate and paraffin waxes and 10 wt. parts of the calcium carbonate filler at the specified processing temperatures or at lower temperatures of 150 ° C, 145 ° G, 140 ° C, 140 ° C, 140 ° C set in individual zones starting from the hopper and at a nozzle of 150 ° C at lower screw speed after perfect cleaning, which can be detected by different color of the mixture, the machine is switched off. When the machine is started up, the machine is heated to the required processing temperatures, the cleaning mixture is extruded by the treatment mixture and the other required technological parameters are set.
Příklad 2 'Ja jedaozávitovkovom stroji sa spracováva suchá zmes na báze kopolymeru vinylchloridu s etylénvinylacetátom o zložení 100 hmot. dielov kopolymeru hPVC o K-hodnote 68,5 hmot. dielov stabilizátora obsahujúceho fosfit olova, 4 hmot. diely plniva na báze uhličitanu vápenatého na profily, pri teplotách 16O °C, 165 °G, 170 °, 170 °C nastavených v jednotlivých zónách počnúc od násypky a na hubici 175 °C. Pri odstavení stroja sa uvedená zmes vytlačí čistiacou zmesou o zložení 100 hmot. dielov suspenzného PVC o K-hodnote 71,10-hmot dielov stabilizátora obsahuiúceho bázické sírany, 5 hmot. dielov mastív na báze stearanu vápenatého a parafinových voskov a 15 hmot. dielov plniva na báze uhličitanu vápenatého pri uvedených spracovateTských teplotách alebo nižších teplotách 130 °C, 135 °C, 140 °C, 145 °C nastavených v jednotlivých zónách počnúc od násypky a na hubici 140 °C pri nižších otáčkách závitovky a po vyčistění sa stroj vypne. Pri náběhu zariadenia sa stroj vyhřeje na požadované spracovatelské teploty, čistiaca zmes sa vytlačí spraoovatelskou zmesou a nastavia sa ostatně požadované technologické parametre.Example 2 In a single screw machine, a dry blend based on a copolymer of vinyl chloride with ethylene vinyl acetate of 100 wt. parts of hPVC copolymer having a K-value of 68.5 wt. parts by weight of a lead phosphite-containing stabilizer, 4 wt. parts of calcium carbonate filler for profiles, at temperatures of 16 ° C, 165 ° G, 170 °, 170 ° C set in individual zones starting from the hopper and at a nozzle of 175 ° C. When the machine is at standstill, the mixture is extruded with a 100 wt. parts of suspension PVC with a K-value of 71.10 parts by weight of a stabilizer containing basic sulphates, 5 parts by weight parts by weight of calcium stearate and paraffin waxes and 15 wt. parts of the calcium carbonate filler at the indicated processing temperatures or lower temperatures of 130 ° C, 135 ° C, 140 ° C, 145 ° C set in individual zones starting from the hopper and at the 140 ° C nozzle at lower screw speed and after cleaning the machine off. When the machine is started up, the machine is heated to the required processing temperatures, the cleaning mixture is extruded by the treatment mixture and the required technological parameters are set.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS785226A CS205441B1 (en) | 1978-08-10 | 1978-08-10 | Cleaning mixture for plastioworking machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS785226A CS205441B1 (en) | 1978-08-10 | 1978-08-10 | Cleaning mixture for plastioworking machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS205441B1 true CS205441B1 (en) | 1981-05-29 |
Family
ID=5396739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS785226A CS205441B1 (en) | 1978-08-10 | 1978-08-10 | Cleaning mixture for plastioworking machines |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS205441B1 (en) |
-
1978
- 1978-08-10 CS CS785226A patent/CS205441B1/en unknown
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