E phatlalalitsoe ka la 27 Loetse 2024 ke Yidan Zhong
Li-additives tsa polasetiki ke eng?
Li-additives tsa polasetiki ke tsa tlhaho kapa tsa maiketsetso tsa inorganic kapa tsa manyolo tse fetolang litšobotsi tsa polasetiki e hloekileng kapa ho eketsa thepa e ncha. Baetsi ba kopanya resin le li-masterbatches tse eketsang ka tekanyo e itseng ho latela litlhoko tsa sehlahisoa, ebe ba hlahisa lisebelisoa tse fapaneng. Kamora ho sebetsa ka ho lahla, ho hatella, ho bopa, joalo-joalo, motsoako oa pele o nka sebopeho se lakatsehang.
Ho kopanya li-additives tse fapaneng le li-granules tsa polasetiki ho ka fana ka thepa e fapaneng ho li-plastiki, joalo ka ho thatafala ho eketsehileng, ho kenya letsoho ho betere, le pheletso e benyang. Ho kenya li-additives ho li-plastiki ha ho etse feela lintho tsa polasetiki tse bobebe empa hape ho ntlafatsa 'mala oa tsona, ho etsa hore sehlahisoa se tšepahale ho basebelisi. Ke ka lebaka lena 90% ealihlahisoa tsa polasetikilefatšeng ka bophara sebelisa li-additives, kaha polasetiki e hloekileng ka kakaretso e haelloa ke ho tiea, ho tšoarella le matla. Li-additives li tlameha ho kopanngoa ho etsa hore polasetiki e tšoarelle tlas'a maemo a thata a tikoloho.
Ke li-additives tsa polasetiki tse atileng haholo kajeno?
1. Li-anti-blocking additives (anti-adhesive)
Ho khomarela ho ka ama ts'ebetso ea lifilimi hampe le lits'ebetso, ka linako tse ling ho etsa hore filimi e se ke ea sebelisoa. Li-anti-blocking additives li senya bokaholimo ba filimi ho etsa hore ho be le phello e otlolohileng, ho fokotsa ho kopana pakeng tsa lifilimi le ho li thibela ho khomarela.
Li-anti-blocking agents li tlameha ho sebetsa hantle haholo, tse nang le boleng bo ka tšeptjoang le botsitso, tse nang le tšusumetso e fokolang kapa e se nang letho mosebetsing oa lifilimi, haholo-holo lifiliming tsa LLDPE le LDPE. Hangata li-anti-blocking agents li sebelisoa hammoho le li-slip agents ho theha sebaka se nepahetseng sa ho sebetsana le lifilimi.
Lisebelisoa tse tloaelehileng tsa li-anti-blocking additives li kenyelletsa silica ea maiketsetso (SiO2) e kang silika ea fumed, gel silica, le zeolite, kapa tlhaho le liminerale SiO2 joaloka letsopa, diatomaceous earth, quartz, le talc. Lisebelisoa tsa maiketsetso li na le molemo oa ho se be kristale (ho qoba lerōle la chalky), ha thepa ea tlhaho e hloka phekolo e khethehileng ho fokotsa lerōle.
2. Liemeli tse hlakisang
Nakong ea ts'ebetso, lintlha tse kang li-filler kapa polasetiki e nchafalitsoeng li ka fokotsa pepeneneng ea sehlahisoa. Lisebelisoa tse hlakisang li fana ka tharollo, li eketsa khanya ea sehlahisoa ha li ntse li fokotsa litšenyehelo tsa tlhahiso.
Lisebelisoa tse hlakisang li ka ntlafatsa ho hlaka ka sekhahla se tlase ha li ntse li fana ka phaello e ka bang teng ka nako e fokotsehileng ea potoloho le ho boloka matla. Ha li ame hampe li-welding, adhesion, kapa ts'ebetso e 'ngoe ea ts'ebetso.
3. Lisebelisoa tsa polasetiki
Plastic filler masterbatch, eo hangata e thehiloeng ho calcium carbonate (CaCO3), e sebelisoa indastering ea polasetiki ho fetola litšobotsi tsa li-resin kapa li-polymer resin, ho fokotsa litšenyehelo tsa sehlahisoa.
Motsoako oa phofo ea lejoe, li-additives, le resin ea mantlha e qhibilihisoa hore e be resin ea metsi ebe e pholile ka li-granules, ebe li kopantsoe le polasetiki e tala bakeng sa lits'ebetso tse kang ho bopa, ho ohla le ho bopa ente ho hlahisa lihlahisoa tsa polasetiki.
Ts'ebetsong ea polasetiki ea PP, lintlha tse kang shrinkage le warping hangata li ama boleng ba sehlahisoa. Lisebelisoa tse thatafatsang li thusa ho potlakisa sebopeho sa sehlahisoa, ho fokotsa ho loana le ho ntlafatsa pepeneneng. Li boetse li khutsufatsa lipotoloho tsa khatiso, ho ntlafatsa katleho ea tlhahiso.
4. Li-stabilizers tsa UV (li-additives tsa UV)
Leseli la ultraviolet le ka senya maqhama a li-polymers, a baka tšenyo ea lik'hemik'hale 'me a lebisa ho chalking, discoloration, le tahlehelo ea thepa ea' mele. Li-stabilizer tsa UV joalo ka li-stabilizer tsa amine tse thibetsoeng (HALS) li fokotsa li-radicals tsa mahala tse ikarabellang bakeng sa ho senyeha, kahoo li lelefatsa bophelo ba sehlahisoa.
5. Anti-static additives
Nakong ea ts'ebetso, li-granules tsa polasetiki li hlahisa motlakase o tsitsitseng, ho hohela lerōle holimo. Li-anti-static additives li fokotsa tefiso ea holim'a filimi, li ntlafatsa polokeho le ho fokotsa ho bokella lerōle.
Mefuta:
Li-anti-statics tse sa tšoarelleng nako e telele: li-agent tse holim'a metsi, letsoai la tlhaho, ethylene glycol, polyethylene glycol.
Li-anti-statics tse tšoarellang: polyhydroxy polyamines (PHPA), polyalkyl copolymers
6. Anti-caking additives
Hangata lifilimi li khomarelana ka lebaka la matla a likhomaretsi, liqoso tse fapaneng, kapa matla a vacuum, a etsang hore ho be thata ho li arola. Li-anti-caking additives li senya bokaholimo ba filimi ho lumella moea ho thibela ho putlama. Linyeoe tse ling tse khethehileng li kenyelletsa li-anti-static elements ho thibela ho bokellana ha tefiso.
7. Li-additives tse thibelang mollo
Lipolasetiki li chesa haholo ka lebaka la sebopeho sa tsona sa limolek'hule tsa carbon-chain. Li-retardants tsa malakabe li ntlafatsa ho hanyetsa mollo ka mekhoa e kang ho etsa mekhahlelo e sireletsang kapa ho tima li-radicals tsa mahala.
Li-retardants tse tloaelehileng tsa malakabe:
Li-halogenated flame retardants
DOPO derivatives
Inorganic: aluminium hydroxide (Al(OH)3), magnesium hydroxide (Mg(OH)2), phosphorus e khubelu
Lintho tse phelang: phosphates
8. Li-additives tse khahlanong le moholi
Li-anti-fogging agents li thibela metsi hore a se ke a phalla holim'a lifilimi tsa polasetiki ka mokhoa oa marotholi, ao hangata a bonoang ka har'a liphutheloana tsa lijo tse bolokiloeng ka lihatsetsing kapa li-greenhouses. Mahlahana ana a boloka ho hlaka le ho thibela moholi.
Li-anti-fog agents tse tloaelehileng:
PLA (polylactic acid)
Lanxess AF DP1-1701
9. Optical brighteners
Li-Optical brighteners, tse tsejoang hape ka hore ke li-fluorescent whiteners, hangata li sebelisoa ho monya leseli la UV le ho ntša leseli le bonahalang, ho ntlafatsa ponahalo ea lihlahisoa tsa polasetiki. Sena se thusa ho fokotsa ho fifala ha mebala, haholo-holo ka lipolasetiki tse nchafalitsoeng, ho etsa hore mebala e be e khanyang le e khanyang haholoanyane.
Li-lighteners tse tloaelehileng tsa optical: OB-1, OB, KCB, FP (127), KSN, KB.
10. Biodegradation tšehetsa additives
Plastiki e nka nako e telele ho bola, e baka mathata a tikoloho. Li-additives tsa biodegradation, joalo ka Reverte, li thusa ho potlakisa ho senyeha ha polasetiki tlas'a tšusumetso ea tikoloho joalo ka oksijene, khanya ea letsatsi le mocheso.
Li-additives tsena li thusa ho fetola lipolasetiki tse sa senyeheng hore e be lisebelisoa tse ka senyehang, tse ts'oanang le lintho tsa tlhaho joalo ka makhasi kapa limela, tse kenyang letsoho molemong oa ho boloka tikoloho.
Nako ea poso: Sep-27-2024