Ndị na-emekọrịta ihe egosila na ọ dị irè n'ịkwalite ihe ndị bụ isi dị ka mmetụta / nkwụsi ike nke PCR na ngwakọta PIR nke polyolefins na plastik ndị ọzọ.# mmepe na-adigide
Ihe nlele HDPE/PP emegharịrị na-enweghị Dow Engage compatibilizer (n'elu) yana nlele HDPE/PP emegharịrị ya na njikọ POE.ndakọrịta elongation okpukpu atọ na ezumike site na 130% ruo 450%.(Foto: Dow Chemical)
Ka ịmegharị plastik na-aghọ ahịa na-eto eto n'ụwa niile, a na-ejikarị resins na mgbakwunye na-edozi nsogbu resin ngwakọ na mpaghara dịka nkwakọ ngwaahịa na ngwaahịa ndị ahịa, ihe owuwu, ugbo na ụgbọ ala.Ịkwalite arụmọrụ ihe, imeziwanye nhazi na ibelata ọnụ ahịa na mmetụta gburugburu ebe obibi bụ otu n'ime ihe ịma aka ndị bụ isi, na plastik ndị na-azụ ahịa dị ka polyolefins na PET na-ebute ụzọ.
Ihe mgbochi buru ibu n'iji ihe eji emeghari emeghari bu nkewa nke plastik na-adighi nkwekorita di oke onu ma na-ewe oge.Site n'ikwe ka plastik na-ekwekọghị na-agbaze na-agbaze, ndị na-emekọrịta ihe na-enyere aka belata mkpa nkewa ma mee ka ndị na-emepụta ihe na-emepụta ngwaahịa dị elu, ma n'otu oge ahụ na-abawanye ọdịnaya recycled na ịnweta ihe ọhụrụ dị ala na ọnụ ala dị ala iji belata ọnụ ahịa.
Ihe ndakọrịta ndị a nwere ike imegharịgharị gụnyere ọpụrụiche polyolefin elastomers, styrenic block copolymers, polyolefins emegharịrị kemịkal, na mgbakwunye dabere na kemịkalụ aluminom titanium.Ihe ọhụrụ ndị ọzọ pụtakwara.A na-atụ anya na ha niile ga-ebute ụzọ n'ihe ngosi azụmaahịa na-abịa.
Dị ka Dow si kwuo, Engage POE na Infuse OBC kacha mma maka ndakọrịta HDPE, LDPE na LLDPE na polypropylene n'ihi ọkpụkpụ azụ PE na alpha olefins dị ka ndị na-emepụta ihe.(Foto: Dow Chemical)
Ọpụrụiche polyolefin elastomers (POE) na polyolefin plastomer (POP), nke ewepụtara na mbụ iji melite njirimara nke polyolefins dị ka mmetụta na ike tensile, etolitela dị ka ihe mmekọ maka PE na PP emegharịrị, mgbe ụfọdụ a na-ejikwa ihe ndị ọzọ dị ka PET ma ọ bụ PET.naịlọn.
Ngwaahịa ndị a gụnyere Dow's Engage POE, ihe OBC na-enye ethylene-alpha-olefin comonomer random copolymer, ihe mgbochi dị nro na-agbanwegharị olefin copolymer, na Exxon Mobil Vistamaxx Propylene-Ethylene na kpọmkwem Ethylene-Octene POP.
A na-ere ngwaahịa ndị a na plastik recyclers / compounders na ndị ọzọ na-emegharị ihe, kwuru Jesús Cortes, onye na-emepụta ahịa na ExxonMobil Product Solutions, na-achọpụta na ndakọrịta nwere ike ịbụ ngwá ọrụ iji nyere ndị na-emegharị ihe aka na-erigbu ndị na-eme ihe na-agafe agafe na ndị nwere ike ịnweta ọnụ ala dị ala maka iyi iyi polyolefin.Han Zhang, onye isi nke Global Sustainability for Packaging and Specialty Plastics na The Dow Chemical Company, kwuru, sị: "Ndị ahịa anyị na-erite uru site n'ịmepụta ngwaahịa njedebe dị elu nke nwere ohere ịnweta iyi ihe eji emegharị ihe.Anyị na-eje ozi ndị na-arụ ọrụ nke na-eji ihe ndakọrịta na-abawanye ọdịnaya emegharịrị ka ha na-ejigide nrụpụta. "
"Ndị ahịa anyị na-erite uru site na ịmepụta ngwaahịa njedebe dị elu ka ha na-enweta mmiri iyigharị ihe ka ukwuu."
ExxonMobil' Cortés ekwenyela na otu Vistamaxx na akara ule dị mma maka mgbanwe resin na-amaghị nwoke nwekwara ike iji hụ na ndakọrịta na plastik emegharịrị.O kwuru na Vistamaxx polymers na-eme ka HDPE, LDPE na LLDPE kwekọọ na polypropylene, na-agbakwụnye na n'ihi polarity nke polymers dị ka PET ma ọ bụ naịlọn, Vistamaxx grade grafting na-achọrọ iji mee ka polyolefins kwekọọ na polymers dị otú ahụ."Dịka ọmụmaatụ, anyị na ọtụtụ ndị na-arụkọ ọrụ na-arụkọ ọrụ iji gbanye Vistamaxx iji mee polyolefins dakọtara na naịlọn ka anyị na-achọ ịnọgide na-enwe ọganihu arụmọrụ nke Vistamaxx polymers nwere ike iweta na nhazi nhazi."
Osikapa.1 MFR eserese na-egosi agba agwakọta nke HDPE emegharịrị na polypropylene nwere ma na-enweghị mgbakwunye Vistamaxx.(Isi mmalite: ExxonMobil)
Enwere ike ịkwado ndakọrịta site na akụrụngwa akụrụngwa emelitere, dị ka nguzogide mmetụta a na-achọsi ike, dịka Cortez siri kwuo.Ịba ụba mmiri mmiri dịkwa mkpa mgbe ị na-ejigharị ihe.Otu ihe atụ bụ mmepe nke usoro ịkpụzi injection maka iyi karama HDPE.Ọ na-ekwu na ndị elastomer ọpụrụiche dị taa nwere ojiji ha."Ebumnobi nke mkparịta ụka ahụ abụghị iji tụnyere arụmọrụ ha n'ozuzu ya, kama ịhọrọ ngwá ọrụ kachasị mma maka otu ọrụ."
Dịka ọmụmaatụ, o kwuru, "Mgbe PE dakọtara na PP, anyị kwenyere na Vistamaxx na-enye nsonaazụ kacha mma.Mana ahịa ahụ chọkwara nkwụsi ike mmetụta ka mma, na plastatomers ethylene-octene nwere ike dabara adaba mgbe ị na-achọ ịdị ike dị ala.”
Cortez gbakwụnyere, "Ethylene-octene plastomers dị ka akara ule nke Dow's Engage na Vistamaxx nwere ọkwa ibu yiri nke ahụ."
Dow's Zhang kọwara na ọ bụ ezie na ọnụnọ polypropylene na HDPE na-abawanye nkwụsi ike dịka atụpụtara site na mgbanwe mgbanwe mgbanwe, ọ na-eweda akụrụngwa dị ka a tụrụ ya site na ike na elongation tensile n'ihi enweghị nkwekọrịta nke akụkụ abụọ ahụ.Ojiji nke compatibilizers na HDPE/PP ngwakọta na-eme ka nguzozi isi ike / viscosity dị mma site n'ibelata nkewa nke oge yana melite njikọ ihu.
Osikapa.2. Eserese ike mmetụta na-egosi ngwakọta agba dị iche iche nke HDPE emegharịrị na polypropylene, yana na enweghị mgbakwunye Vistamaxx.(Isi mmalite: ExxonMobil)
Dị ka Zhang si kwuo, Engage POE na Infuse OBC kacha mma iji mee HDPE, LDPE na LLDPE dakọtara na polypropylene n'ihi ọkpụkpụ azụ PE na alpha-olefin comonomer.Dị ka ihe mgbakwunye maka ngwakọta PE/PP, a na-ejikarị ha na nha 2% ruo 5% site na ịdị arọ.Zhang kwuru na site n'ịkwalite nguzozi nke isi ike na isi ike, itinye aka na ndị mmekọ POE dị ka ọkwa 8100 nwere ike inye uru karịa maka ngwakọta PE/PP ejiri megharịa, gụnyere iyi iyi dị elu na PE na PP.Ngwa gụnyere akụkụ ụgbọ ala kpụrụ ntụtụ, ite agba, ite ahịhịa, igbe nkwakọ ngwaahịa, pallets na arịa ụlọ dị n'èzí.
Ahịa ahụ chọrọ arụmọrụ mmetụta ka mma yana ethylene octene plastomer nwere ike ịrụ ọrụ mgbe achọrọ ike mmetụta dị ala.
Ọ gbakwụnyere, sị: “Mgbakwunye nke naanị 3 wt.% Jikọọ 8100 okpukpu atọ mmetụta ike na tensile elongation nke HDPE / PP 70/30 na-ekwekọghị ekwekọ ka ị na-ejigide modulus dị elu nke akụrụngwa PP na-enye, "ka ọ gbakwụnyere, maka ihe achọrọ plastik dị ala, Engage POE na-enye ike mmetụta na ọnọdụ okpomọkụ. n'ihi na oke ala iko mgbanwe okpomọkụ.
N'ikwu okwu banyere ọnụ ahịa nke elastomer ndị a ọpụrụiche, ExxonMobil's Cortez kwuru: “N'ime ahịrị uru bara uru na-asọ mpi nke ukwuu, ọ dị mkpa ịhazi ọnụ ahịa na arụmọrụ.Site na polymer Vistamaxx, enwere ike imeziwanye arụmọrụ nke resin resins, na-enye ohere iji resins mee ihe na ngwa ebe ndị nrụpụta nwere ike nweta uru akụ na ụba dị elu.N'ihi ya, ndị na-emegharị ihe nwere ike inwe ohere ka ukwuu ịzụ ahịa plastik ndị ha megharịrị, karịa naanị ọnụ ahịa dị ka onye isi ụgbọ ala, na-enye ha ohere ilekwasị anya na ngwakọta omenala na mmepụta ihe. "
"Na mgbakwunye na inwe ike ịmegharị polyolefins agwakọtara, anyị na-arụkwa ọrụ iji kwalite ịmegharị ngwakọta nke ngwakọta dị iche iche dị ka polyolefins na plastik engineering dị ka naịlọn na polyester.Anyị enyela ọtụtụ polymers na-arụ ọrụ, ma ihe ngwọta ọhụrụ ka na-emepe emepe.A na-arụsi ọrụ ike iji lebara ngwakọta rọba dị iche iche dị na nkwakọ ngwaahịa, akụrụngwa, ụgbọ njem na ngwa ndị ahịa. "
Styrene ngọngọ copolymers na kemịkalụ gbanwetụrụ polyolefins bụ ụdị ihe ndị ọzọ enwetara nlebara anya dị ka ndị na-emekọrịta ihe maka ịkwalite na imeziwanye ndakọrịta nke resin recycled.
Kraton Polymers na-enye ikpo okwu CirKular + styrenic block copolymer nwere ihe mgbakwunye na-eme ka arụ ọrụ dị mma maka ịmegharị plastik na imegharị ihe.Julia Strin, onye isi ahịa azụmaahịa zuru ụwa ọnụ maka Kraton Specialty Polymers, rụtụrụ aka na usoro abụọ nke akara ule ise: CirKular + Compatibility Series (C1000, C1010, C1010) na CirKular + Performance Enhancement Series (C2000 na C3000).Ihe mgbakwunye ndị a bụ oke mgbochi copolymers dabere na styrene na ethylene/butylene (SEBS).Ha nwere ihe eji arụ ọrụ pụrụ iche, gụnyere ike mmetụta dị elu n'ime ụlọ ma ọ bụ okpomọkụ cryogenic, mgbanwe iji mee ka isi ike na mmetụta mmetụta, nkwalite nguzogide nrụgide nrụgide, yana nkwalite nhazi.Ngwaahịa okirikiri+ na-enyekwa ndakọrịta ọtụtụ resin maka plastik na-amaghị nwoke, PCR na mkpofu PIR.Dabere na ọkwa, enwere ike iji ha na PP, HDPE, LDPE, LLDPE, LDPE, PS na HIPS, yana resins polar dị ka EVOH, PVA na EVA.
"Anyị egosila na ọ ga-ekwe omume ịmegharị ihe mkpofu plastik agwakọtara polyolefin ma megharịa ya ka ọ bụrụ ngwaahịa bara uru karị."
"Ihe mgbakwunye CirKular+ nke a na-emegharị n'ụzọ zuru ezu na-enye ohere ijikwa PCR site na imeziwanye akụrụngwa na ịkwado imepụta ngwaahịa monomaterial dabere na polyolefin, si otú ahụ na-ebuli ọdịnaya PCR karịa pasent 90," Stryn kwuru.resin na-agbanweghị agbanwe.Nnwale egosila na ngwaahịa CirKular+ nwere ike ịgwọ ọkụ ruo ugboro ise maka iji ya eme ihe ugboro ugboro."
Usoro CirKular + nke ndị na-agbasawanye bụ ọtụtụ resin expanders maka ịkwalite PCR na iyi mgbake PIR agwakọtara, agbakwunyere na 3% ruo 5%.Ihe atụ abụọ nke mkpogharị ihe mkpofu agwakọta gụnyere ihe atụ nke 76%-PCR HDPE + 19%-PCR PET + 5% Kraton+C1010 na ihe atụ nke 72%-PCR PP + 18%-PCR PET + 10% Kraton+C1000..N'ihe atụ ndị a, ike mmetụta Izod abawanyela site na 70% na 50%, n'otu n'otu, na ike mkpụrụ mụbara site na 40% na 30%, ebe ọ na-ejigide isi ike na imeziwanye usoro nhazi.Ngwakọta PCR LDPE-PET gosikwara arụmọrụ yiri ya.Ngwaahịa ndị a dịkwa irè na naịlọn na ABS.
Emebere usoro nkwalite arụmọrụ CirKular+ iji kwalite iyi PCR agwakọtara cyclic na iyi PIR nke polyolefins na polystyrene na ọkwa mgbakwunye 3% ruo 10%.Nnwale ịkpụzi ịgba ọgwụ na-aga nke ọma na nso nso a: 91%-PCR PP + 9% Kraton+ C2000.Nhazi ahụ nwere mmụba 110% na nguzozi mmetụta modulus karịa ngwaahịa asọmpi.Ngwa rPP dị elu na ngwa ụgbọ ala na ụlọ ọrụ mmepụta ihe chọrọ ụdị nkwalite a.Enwere ike itinye nke a na nkwakọ ngwaahịa, mana n'inwe obere ihe achọrọ, ọnụọgụ C2000 ga-ebelata, "Sreen kwuru.
Enwere ike jikọta Kraton+ ma ọ bụ kpokọta ya na plastik emegharịrị tupu ịkpụzi, extrusion ma ọ bụ dịka akụkụ nke usoro nrụgharị, Stryn na-ekwu.Kemgbe mmalite CirKular + afọ ole na ole gara aga, ụlọ ọrụ ahụ enwetala nnabata n'oge na mpaghara dị ka pallets ụlọ ọrụ, nkwakọ ngwaahịa nri na ihe ọṅụṅụ, akụrụngwa ụgbọ ala na oche ụgbọ ala ụmụaka.Enwere ike iji CirKular+ mee ihe n'ụdị ngwa dị iche iche gụnyere ịgba ọgwụ mgbochi ma ọ bụ ịkpụzi mkpakọ, extrusion, ịkpụzi ntụgharị na ịgbakọta.
Polybond 3150/3002 bụ akụkụ nke SI Group buru ibu nke Polybond emezigharịrị kemịkalụ polyolefins ma enwere ike iji ya dị ka ihe mgbakwunye na ndakọrịta.Ọ bụ anhydride nke nwoke anyadokwa polypropylene nke na-eme ka polypropylene megharịa ya dakọtara na ụdị naịlọn niile.Dịka John Yun si kwuo, onye njikwa nka na nkwado teknụzụ, n'ogo ojiji nke 5%, ọ na-egosipụta ike mmetụta Izod ugboro atọ ma tụgharịa ike mmetụta Izod.Irfaan Foster, onye nduzi nke mmepe ahịa, kwuru na ngwa mbụ bụ mkpuchi ụda ụgbọ ala.N'oge na-adịbeghị anya, ejirila ya na ngwakọta polypropylene arụgharịrị na nylon maka ogwe dị n'okpuru ala, ihe ndị dị n'okpuru, na n'azụ dashboards.
Ọkwa ọzọ bụ Polybond 3029, maleic anhydride anyadokwa elu-njupụta polyethylene ewebata afọ abụọ gara aga dị ka ihe mgbakwunye iji melite ndakọrịta nke osisi-plastic composites.Dị ka Yun si kwuo, ọ dị ka ụlọ ọrụ ahụ na-aga n'ihu iji kwekọọ na 50/50 PCR / HDPE dị ọcha.
Klas ọzọ nke compatibilizers dabeere na titanium-aluminom chemistry, dị ka titanate (Ti) na zirconate (Zr) catalysts nke Kenrich Petrochemicals na-enye ma na-eresị ndị na-emepụta ihe na ndị na-akpụ akpụ.Ngwaahịa nke ụlọ ọrụ na-agụnye ihe ọhụrụ catalyst na masterbatch ma ọ bụ ntụ ntụ nke na-arụ ọrụ dị ka ihe mgbakwunye maka ụdị polymers dị iche iche, gụnyere polyolefins, bioplastics dị ka PET, PVC na PLA.Ojiji ya na ngwakọta PCR dị ka PP/PET/PE na-enweta ume, ka onye isi oche Kenrich na onye nwe ya Sal Monte kwuru.A na-akọ na nke a na-abawanye mmepụta extrusion ma belata oge okirikiri ịkpụzi injections.
A na-akọ Ken-React CAPS KPR 12/LV beads na Ken-React KPR 12/HV ntụ ntụ iji weghachi PCR n'ọnọdụ mbụ ya.Monte kwuru na ngwaahịa a sitere na ijikọ ụlọ ọrụ ọhụrụ LICA 12 alkoxy titanate catalyst na ihe nrụnye igwe agwakọta nke “dị ọnụ ahịa karịa.”"Anyị na-enye CAPS KPR 12/LV granules n'ogo sitere na 1.5% ruo 1.75% nke ngụkọta arọ nke ihe niile emegharịrị agbakwunyere na bred, dị ka masterbatch, ma belata usoro okpomọkụ site na 10-20%, iji nọgide na-akwa ya. nke ngwakọta mmeghachi omume.Ha na-arụ ọrụ n'ọkwa nanometer, yabụ achọrọ mkpụcha ihe mejupụtara ya, mgbaze ahụ na-achọkwa oke ike.”
Monte kwuru na mgbakwunye ndị a bụ ndị mmekọ dị mma maka polymer mgbakwunye dị ka LLDPE na PP na polycondensates dị ka PET, organic na inorganic fillers, na bioplastics dị ka PLA.Nsonaazụ a na-ahụkarị gụnyere mbelata 9% na extrusion, ịkpụzi injection na ịfụ ọkụ ịkpụzi yana mmụba 20% n'ọsọ nhazi maka ọtụtụ thermoplastics na-ejuputaghị.E nwetara nsonaazụ yiri nke ahụ site na ngwakọta 80/20% LDPE/PP emegharịrị.N'otu oge, a na-eji 1.5% CAPS KPR 12/LV iji hụ na ndakọrịta nke resin PIR atọ: ihe nkiri fused LLDPE, 20-35 MFI agwakọta injection kpụrụ polypropylene copolymer lids, na thermoformed PET Food foldout packing.Gwakọta ngwakọta PP/PET/PE ka ọ bụrụ nha 1/4 ″.ruo ½ inch.A na-agwakọta flakes na agbaze n'ime pellet na-akpụzi injection.
A kọrọ na teknụzụ mgbakwunye diblock nke Interface Polymers na-emeri enweghị ndakọrịta nke polyolefins n'ọkwa molekụla, na-enye ohere ka ahazi ya.(Foto: polymers ihu ihu)
Azụmaahịa nkesa SACO AEI Polymers bụ onye nkesa pụrụ iche nke Fine-Blend na China, nke na-emepụta ọtụtụ ihe ndakọrịta maka polypropylene, naịlọn, PET, thermoplastics injinịa na ihe ndị dị ndụ dị ka PLA na PBAT, gụnyere ngwakọta emegharịgharị, ihe mgbakwunye na ihe ndọtị agbụ.Onye njikwa ngalaba azụmahịa Mike McCormach kwuru.Ihe inyeaka gụnyere ndị na-emekọ ihe na-adịghị arụ ọrụ, ọkachasị ngọngọ na graft copolymer ma ọ bụ copolymers random nke na-adịghị etinye aka na mmeghachi omume kemịkalụ mgbe ị na-agwakọta polymer.BP-1310 bụ ihe atụ ebe mgbakwunye mgbakwunye nke 3% ruo 5% na-eme ka ndakọrịta nke ngwakọta nke polypropylene na polystyrene emegharịrị.Ihe mgbakwunye iji melite ndakọrịta nke ngwakọta PE/PS ejirigharịgharị ka na-emepe.
Ngwakọta ndị na-arụ ọrụ nke ọma na-emekọrịta ihe na-eme ka ndakọrịta dị mma site na iji kemịkal na-emeghachi omume na polymer na-amaghị nwoke n'oge ngwakọta, gụnyere ECO-112O maka PET megharịrị, polycarbonate na naịlọn;HPC-2 maka ABS na ihe ndakọrịta PET megharịrị;na SPG-02 maka mmepụta nke polypropylene na polypropylene megharịrị.PET dakọtara.Ha nwere otu epoxy nwere ike meghachi omume na otu polyester's hydroxyl recycled iji kwalite ike na ndakọrịta, McCormach kwuru.Enwekwara CMG9801, maleic anhydride anyadokwa polypropylene nke nwere ike imeghachi omume na otu amino nke naịlọn.
Ebe ọ bụ na 2016, ụlọ ọrụ Britain Interface Polymers Ltd. mepụtara teknụzụ mgbakwunye Polarfin diblock copolymer ya, nke akọọrọ na-emeri enweghị nkwekọrịta molekụla nke polyolefins, na-enye ohere ịmegharị ha.Ihe mgbakwunye diblock ndị a dabara adaba maka nwa agbọghọ na-amaghị nwoke na polyethylene arụgharịrị na ogige polypropylene, mpempe akwụkwọ na ihe nkiri.
Otu onye na-emepụta ihe nkiri na-arụ ọrụ na-arụ ọrụ iji hazie ihe nkiri multilayer na-enweghị nnukwu mfu nke arụpụtaghị ihe.Onye isi na-ahụ maka mmepe azụmahịa bụ Simon Waddington kwuru na ọbụlagodi na ọkwa dị ala, Polarfin ewepụla gelling, nsogbu a na-ahụkarị na-egbochi imegharị ihe nkiri polyolefin site na iji plastik agwakọtara emegharịgharị."Anyị egosipụtala nke ọma na enwere ike ịmegharị ihe mkpofu plastik agwakọta polyolefin ma megharịa ka ọ bụrụ ngwaahịa bara uru karịa site na iji teknụzụ mgbakwunye Polarfin anyị."
Dị ka ExxonMobil's Cortes si kwuo, enwere ike igosipụta ndakọrịta (dịka Vistamaxx nwere PE/PP emegharịrị) site na akụrụngwa arụ ọrụ emelitere dịka nguzogide mmetụta.(Foto: ExxonMobil)
N'ime ejima ịghasa ngwakọta, ọtụtụ ndị injinia na-amata uru nke inwe ike ịhazi ihe nkedo.Nke a bụ ihe ị kwesịrị ịma gbasara nhazi ngalaba ịwụ.
Chọọ maka oghere na / ma ọ bụ usoro oge iji nye nkọwa mgbe ị na-enyocha ntụpọ njikọ njikọ ma ọ bụ na-achọpụta isi ihe kpatara nsogbu nhazi.Usoro maka ịchọpụta na ịgwọ ihe kpatara amata bụ ibu ụzọ chọpụta ma nsogbu ahụ ọ na-adịte aka ma ọ bụ nwa oge.
Insight Polymers & Complexers na-eji nka ya na kemịkalụ polymer mepụta ihe ọgbọ na-abịa.
Oge nzipu: Jul-28-2023