Phapang ke efe lipakeng tsa phoofolo ea lapeng le petg?

Phoofolo ea lapeng, polyconderaste, e sebelisoa haholo lifiliming tsa ho tsamaisa lijo tse tsamaisang lijo, har'a likopo tse ling. Hona joale e sebelisoa le boitsebiso ba pakete, eseng feela ka botlokotsebe ea sova, empa hape le pente ea Amorphous, est), Crust), Crust) makotikoti le lipolanete. Lilemong tse hlano tse fetileng, phoofolo ea litokelo tsa boenjiniere le li-copoleers, joalo ka lihlahisoa tsa polyments, li sebelisitsoe linthong tse khethehileng tsa boenjiniere, ka ho latellana.
Katleho ea phoofolo ea lapeng e bakoa ke ho thatafala le ho pepeseha, masekeletso a maholo, boleng bo botle ba moruo, le nts'etsopele ea taolo e matla ea botlokotsebe. Mabo a phoofolo ea lapeng a bobebe, a shapa, a sa sebetse ebile a na le moea o motle. Boku e nang le metsi a mabeli e tletse tse peli e bobebe 24% e bobebe ho feta botlolo e tšoanang ea khalase; Botlolo ea lefeela e boima ba 1/10 ea botlolo ea khalase ea boholo bo lekanang. Sena se boloka basebetsi, matla le litšenyehelo ho lihokela tsohle ho tsoa ho moetsi ho Consumer ho Consumer.
Chemistry le thepa

PETTLES FORTLES e hlahisoa ho tsoa ho acid ea Terephthalic (TPA) e fumanoang ke oxidation ea p-xlene. Acid ea Terephthalic e hloekisitsoe kapa e etsoa ka methanol ho theha dimethyl terefthate (dmt) Lintho tse ling tsa mantlha tsa phoofolo ea lapeng ke Ethane, e fetoloang ho ea ethinene ea ethylene (mohlala) ka karabelo. Peo ea khomo e entsoeng ke polymeria e tsoelang pele ea polymeriztion ea DMT (kapa pta) le mohlala ka likrishene tse kholo ho fumana likristale tse kholo le pono ea lisele tsa ho qetela le pono ea lisele le pono ea ho qetela ea lisele le pono ea lisele le pono ea ho qetela. Ts'ebetso e tiileng ea maemo le eona e etsa hore litaba tsa bothabal tsa polymer li be le moeli o lekaneng.

Kakaretso ea khoebo ea lapeng e qhibiliha ho tloha 480f (), empa ntlha ea ho qhibiliha ha Petstal ea phahameng e ka bang 520f ().

PUSELETSO EA PUSELETSO EA PRSTSALeling e na le matla a monate. Ho thatafala le ho hlaka, 'me e hanyetsa li-acid acid ea li-acids, meroallo le li-solvent tse ngata.

Limaraka tse khethehileng

Ho otlolla phoofolo e bopelang ho feta phoofolo ea lapeng ho ka fana ka 'mala o tiileng, o motala le o mosehla o mosehla o mosehla. Polymer ea mebala ka mohau ha a hloke ho eketsoa ka lebaka la mathata a 'mele oa' mele, 'me u ntlafatse ntho e ts'oanang ea' mala. Ho ba le bolotsana bo hloekileng ba lipono tse fapaneng tsa ho kenella tsa maikutlo. Li-copolymers tsa lapeng li lla butle butle, e leng se ba lumellang ho hlahisa libotlolo tsa boleng bo holimo ka nako e fapaneng ea maemo a ts'ebetso ea ts'ebetso. Polymer e sa sebetseng ea polymer e fumaneha hape. Boitsebiso bona bo kopanya melemo ea matla a matle le ho lla butle-butle, 'me e ka sebetsa habonolo ka lisebelisoa tse ngata tse tsoang ho litlolo tse ngata. Tse ling tse fapaneng tse matlafalitsoeng, lelatano ea ho phomola le li-polymers tse ling tse ikhethang li lula li tšohloa kapa li fetotsoe ho fihlela lits'ebetso tse ncha.

PetgCopolyester ke mohlala o mong oa palo e kholo ea li-copolelyes. Ho fapana le PCTA, e fetotsoeng le acid, Petg ke polymer e fetotsoeng ka ho kopanya chdm diol le Tpa (TerephThalic acid) agylene. Likokoana-hloko tsa kokoana-hloko li ka hlahisoa kapa li nyameletsoe 'me hangata li lula li le Mokano, tse hlakileng le tse se nang mebala, esita le likarolong tse kholo tsa sefapano.

E na le sepelaelo se phahameng, ho thata ebile ho thatafala, esita le mocheso o tlase. Motsoako oa pona pepeneniki, ho thatafala le ho qhibiliha ho etsa hore e be thuso ho bobui, bo bopang bo hlakisang Petg e fumaneha ka foromo e sa thabiseng kapa ka lisebelisoa tse fapaneng, ho kenyelletsa li-agente, masene le bosirelisi ba hlorisang ente.

Petg e lokela ho omisoa ka 120-160f bakeng sa lihora tse ka bang 4-6 pele ho bolila kapa ho iphetola. Metsong ka bobeli, mocheso oa ho qhalanang ho tloha ho 420f ho isa ho 510f. Nako ea ho tšoara lisebelisoa tsa ho sebetsa ka har'a lithemparet e phahameng e lokela ho ba khuts'oane ka hohle kamoo ho ka khonehang ho thibela ho nyopa. Moqapi oa ente o lokela ho etsoa mochining o kenang ka ente, o hloka thunya ea 50% ho isa ho 80% ea eona.

Petg e ka felisoa le e phutholohileng e bopehileng ho qhibiliha ka har'a 400-450F ho etsa libotlolo tsa pepeneneng bakeng sa shampoo, lihlahisoa tsa metsi le lijana tsa bohloeki le liphutheloana tsa liminerale le liphutheloana tsa liminerale. Lintho tsena li kopana le Fda litekanyetso tsa ho kopana le lijo.

Ho sexhelportion ho ka hlahisa li-profiles tse fapaneng, hammoho le lijana, lifilimi le maqephe, ho kenyeletsa le liphutheloana tsa sesebelisoa sa bongaka. Petg le PCTA e ka silafatsoa ka li-radide tsa Ethylene oxide le Y

Ha e sebelisoa bakeng sa botsofali, hangata pet e sebetsantsoe ka mocheso oa 45051010f, ka mocheso oa hoo e ka bang 70-130f. Likopo tsa hajoale li kenyelletsa sekoaelo sa sesebelisoa, lithebe tsa mochini, lijana tsa litlolo, bonts'a likarolo le lintho tsa ho bapala.

PET e sebelisoa haholo ho sephutheloana se sefubeng sa lino tse tahang. Peo ea lapeng e na le 100% ea ho kenya literaka tse peli tse sa sebetseng, le litha e le 1,5, 1-litha e nyane le libotlolo tse nyane tsa liphoofolo li boetse li amoheloa haholo.

Phoofolo ea lapeng e sebelisoa lijong, joala, lijaneng. Tlhokahalo ea ho phoofolo ea lapeng ho lebelletsoe hore u tsoelepele ho hola ka lino tse tahang le sephutheloana sa indasteri. Lijo li kentse lijo tsa mosetareta, lihlahisoa tsa rabara, botoro ea peanut, limpho, li pheha oli, lijalo le li-jucusits. Mebala e mecha, boholo ba boima ba botsiso, e tsebahala ka ho tsamaisa meriana, livithamini le lijaneng.

E 'ngoe ea likopo tse ncha tsa ho hola le tse potlakileng haholo tsa lijana tsa liphoofolo tsa liphoofolo ke lijo kapa sephutheloana se hlokang ho tlatsa mocheso o phahameng oa mocheso. Lijo tse ngata, haholo litholoana kapa lijo kapa li-silanta kapa li tlameha ho kenngoa ka 180f kapa ho feta. Sena se fana ka pasteurization (sterilization) ea sehlahisoa le sejana ka nako ea ho tlatsa. Liphohelo tse tloaelehileng tse tsamaeang hantle, tse kang mekotla ea li-shda le lino-mapholi tsa linoko, li tloaetse ho nyenyefatsa le mocheso o kaholimo ho 160f, o bakiloeng ke khatello e itseng ea khatello ea maikutlo. Khatello ea khatello ea maikutlo e hlahisitsoe ke boeona ba motsoako. Mahlale a theknoloji a ntlafalitsoe ho ntlafatsa khatello ea mocheso nakong ea ts'ebetso, hangata ho bitsoa "Theknoloji ea ho futhumatsa". Ho latela theknoloji e ikhethileng ea ts'ebetso, ho na le lintlha tse 'maloa tsa ts'ebetso tsa ts'ebetso, tse ipatileng haholo, tse thehiloeng ho lijana tsa ka 190-195f li ka hlahisoa. Lihlahisoa tse hlokang ho paka le tšobotsi ena li kenyelletsa linoko tse hloekileng tsa litholoana. Lino tse phahameng tsa lero le phahameng, li-tee, li-isotonic tsa Isotonic le lino tse itseng tsa lipapali, tse lumellanang le metsi le metsi a mang a liminerale.

Tšebeliso e meng ea pheletso ea phoofolo ea lapeng e sebelisoa haholo ka ho bapisa le filimi le lakane le lakane. Pet e sebelisoa e le thepa e ikhethileng ea ho beha chelete bakeng sa ho paka pampiri ea ka pelehi. Ntle le moo, Crystalline Pet (CPET) e ka sebelisoa e le lisebelisoa tsa mantlha ho etsa lits'oants'o tsa onve.

Filimi ea phoofolo ea lapeng hangata e ts'oaroa ebe e sebelisoa e le X-ray le lifilimi tse ling tsa lifoto, litheko tsa motlakase, le mekotla ea motlakase. Phoofolo e boetse e sebelisoa joalo ka thepa ea thei ea indasteri. Mohala oa kristale o sa kang oa lla, o se o qalile ho sebelisoa bakeng sa ho theha lijana, lipasebole, lihlahisoa tsa foam le linoelo tsa ho beleha.

Kakaretso: Petg ke mofuta o ntlafalitsoeng oa phoofolo ea lapeng, pepeneneng, ho hatakela ho retsitsa hantle, le ka theko e phahameng.