O LE MATAFAIOI A CPE I PVC LAAU-PLASTIK COMPOSITES
O le faʻaaogaina o le CPE ma le PVC faʻafefiloi palasitika faitotoa ma faʻamalama, o le elasticity, faigata ma le maualalo o le vevela o loʻo faʻaleleia atili, ma o le tau tetee, vevela vevela ma le mautu vailaʻau e lelei.
PVC la'au-palasitika mea tu'ufa'atasiga e tele lava ina aofia ai PVC resin ma fa'atumu. E ala i le tuʻufaʻatasia ma alava laʻau, fetuunaiga o tekinolosi fua, ma le faʻafefiloi o le tino ma le faʻaogaina o le CPE (chlorinated polyethylene) (faʻatasi ai ma le faʻaopoopoga o le aʻafiaga ma le suiga o le aʻafiaga), lea e mafai ona faʻaleleia atili ai le maʻaʻa, malosi, malosi, vevela ma le mumu o le oloa ( i totonu o le faʻatagaina faʻatagaina o manaʻoga faʻaletino, o le maualuga o le chlorine o loʻo i totonu o le CPE, o le sili atu lea o le afi faʻafefeteina), faʻateleina le malosi faʻamalosi, faʻaleleia Le brittleness ma fetolofi teteʻe o PVC.
O le faiga fa'apipi'i fa'apipi'i o mea fa'apipi'i la'au PVC e matua'i ese lava mai mea fa'apipi'i masani. Talu ai o le vaega autu o le fiber laau o le cellulose, o le cellulose o loʻo i ai se numera tele o vaega hydroxyl, ma o nei vaega hydroxyl o loʻo fausia ai fusi o le hydrogen intermolecular, lea e maua ai e alava laau le malosi polarity ma le faʻafefe vai. I le isi itu, o le tele o mea vevela e le o polar ma hydrophobic, o le mea lea o le fetaui i le va o le lua e matua leaga lava, o le malosi faʻapipiʻi i le atinaʻe e laʻititi, ma o le faʻatumuina o alava laʻau e tele, o lea o le suavai ma le faʻagasologa o le. o le mea e oo ina matitiva , lomi ma extrusion molding avea faigata. O le mea lea, o le faʻaleleia o le faʻatulagaina o mea faʻapipiʻi laupapa-palasitika ua faia se sao lelei i le faʻaleleia atili o le faʻaogaina o le gaosiga ma le faʻatinoga o oloa.
CPE na muamua atiina ae vave o se PVC modifier, ma suia PVC o se tasi o fanua talosaga sili ona taua o le CPE. O loʻo i ai i le CPE mea faʻatumu sili ona lelei, ma o se numera tele o mea faʻapipiʻi eseese e mafai ona faʻaopoopo e faʻaleleia ai ana mea faʻamalosi, faʻamalosi ma faʻaleagaina tumau, ma faʻaitiitia tau. O le faʻaaogaina o le PVC ua faʻaleleia ua faʻaleleia foi.
I le CPE faʻaleleia polokalama ma oloa PVC malosi, faʻatusatusa i isi polymers e pei ole PE ma le PP, o le aʻafiaga o le mumu e matua taua lava. O le tele o oloa PVC malosi e faʻaleleia i le CPE modifier ma le chlorine content o le 36%, ma o lona malosi maualuga o le aʻafiaga e masani lava ona maua e le CPE ma chlorine atoms faʻasalalau faʻasalalau i luga o le filifili autu polyethylene. O le mea lea, e mafai ona faʻaleleia atili lenei faʻaoga i tulaga o le gaioiga, faʻasalalau, ma le malosi o aʻafiaga.
FA'A'OGA O LE CPE I LE UAILI FA'AVAE FA'AVAE, P'U'U, FA'U'U
Talu ai o le mole mole CPE e le o iai ni filifili faʻalua, e lelei le tau o le tau, afi mumu, faʻamautu vevela sili atu nai lo le PVC, tau maualalo ma faʻatinoga lelei. Soluble i hydrocarbons manogi ma hydrocarbons halogenated, e le mafai ona solu i aliphatic hydrocarbons, pala i luga atu o le 170 ° C, ma faamatuu atu kasa hydrogen chloride. O loʻo i ai se fausaga faʻamaʻi mautu, sili atu le matua teteʻe, mumu teteʻe, malulu teteʻe, tau teteʻe, free lanu, teteʻe vailaʻau tetee, ozone tetee ma insulation eletise, fetaui lelei ma faagasologa, e mafai ona faʻafefiloi ma PVC, PE, PS ma paʻu i. faaleleia ona uiga faaletino.
CPE o se ituaiga fou o mea gaosia ma se faasologa o meatotino sili ona lelei. O se suiga sili ona lelei mo palasitika PVC ma se pa'u gaosia ma mea lelei atoatoa. O lo'o i ai le tele o fa'aoga fa'aoga ma ua fa'aaogaina lautele i uaea, uaea, fa'agaau, mea fa'apipi'i, pa'u ma mea palasitika, mea fa'amaufa'ailoga, ma fusi fa'avevela afi. , Suavai membrane, ata tifaga ma isi mea faʻasalalau faʻamatalaga ma isi oloa. E mafai foi ona faʻafefiloi le CPE ma le polypropylene, polyethylene maualuga ma le maualalo, ABS, ma isi mea e faʻaleleia ai le mumu o le afi, le matua tetee ma le lolomiina o galuega o nei palasitika. O le CPE e mafai ona fa'atusalia o se kopi fa'afuase'i o le ethylene, polyethylene ma le 1.2-dichloroethylene. O lona mole mole filifili ua tumu ma polar chlorine atoms e tufa fa'afuase'i. Ona o lona tulaga lelei faaletino ma vailaau, e masani ona faʻaaogaina i masini ma eletise. , vaila'au, mea faufale ma fale gaosi oloa. CPE vevela tetee, ozone tetee ma tau tetee, matua tetee e sili atu nai lo le tele o paʻu, suauu tetee e sili atu nai lo nitrile paʻu (ABR), neoprene (CR), matua tetee e sili atu nai lo chlorosulfonated vinyl chloride (CSM); acid resistance, Alkali, masima ma isi mea corrosive, e le oona, mu retardant, leai se faalavelave pa.
FA'A'OGA O LE CPE I INKI
O le polyethylene chlorinated e mafai ona faʻaogaina e ala i tui tui ma extrusion molding. Ae ui i lea, talu ai o le CPE o loʻo i ai se numera tele o chlorine atoms, e tatau ona faʻaopoopoina se vaega o mea faʻamautu vevela, antioxidants ma faʻamalama malamalama i le CPE aʻo leʻi faʻapipiʻiina e puipuia le mautu o lona tuufaatasiga ma le faatinoga. O lo'o maua fo'i CPE e maualalo le chlorine i le fa'asolo ma le feula.
I le taimi nei, o le polyethylene chlorinated e masani ona faʻaaogaina e fai ma sui mo PVC, HDPE ma MBS i totonu o pisinisi oloa palasitika. A maeʻa ona faʻafefiloi se vaega patino o le CPE i le polyvinyl chloride resin, e mafai ona faʻapipiʻiina i oloa e pei o paipa, ipu, faʻapipiʻi uaea faʻapipiʻi, faʻamatalaga, ata tifaga, faʻaitiitia ata, ma isi mea faʻatasi ma mea faigaluega lautele PVC; e mafai foi ona faʻaaogaina mo le ufiufi, faʻapipiʻi faʻamalosi, ma isi. Palasitika, lamination, fusi, ma isi; faʻaaogaina e fai ma sui mo PVC ma PE, lea e mafai ona faʻaleleia le faʻatinoga o oloa, faʻaleleia le elasticity, faigata ma le maualalo o le vevela o le PVC, ma faʻaitiitia le vevela o le embrittlement i -40 ° C; teteʻeina o le tau, faʻafefe vevela ma le faʻamautuina o vailaʻau e sili atu foi nai lo isi suiga; e avea o se suiga mo le PE, e mafai ona faʻaleleia atili le lolomiina, faʻalavelave mumu ma le fetuutuunai o ana oloa, ma faʻateleina le mamafa o le foam PE.
Chlorinated polyethylene resin o se ituaiga fou o mea gaosia ma se faasologa o mea sili ona lelei. O se suiga sili ona lelei mo palasitika PVC ma se paʻu faʻapipiʻi ma mea lelei atoatoa. O lo'o i ai le tele o fa'aoga fa'aoga ma ua fa'aaogaina lautele i uaea, uaea, fa'agaau, mea fa'apipi'i, pa'u ma mea palasitika, mea fa'amaufa'ailoga, ma fusi fa'avevela afi. , Suavai membrane, ata tifaga ma isi mea faʻasalalau faʻamatalaga ma isi oloa. E mafai foi ona faʻafefiloi le CPE ma le polypropylene, polyethylene maualuga ma le maualalo, ABS, ma isi mea e faʻaleleia ai le mumu o le afi, le matua tetee ma le lolomiina o galuega o nei palasitika. O le CPE e mafai ona fa'atusalia o se kopi fa'afuase'i o le ethylene, polyethylene ma le 1.2-dichloroethylene. O lona mole mole filifili ua tumu ma polar chlorine atoms e tufa fa'afuase'i. Ona o lona tulaga lelei faaletino ma vailaau, e masani ona faʻaaogaina i masini ma eletise.
vaila'au, mea faufale ma alamanuia eli. CPE vevela tetee, ozone tetee ma tau tetee, matua tetee e sili atu nai lo le tele o paʻu, suauu tetee e sili atu nai lo nitrile paʻu (ABR), neoprene (CR), matua tetee e sili atu nai lo chlorosulfonated vinyl chloride (CSM); acid resistance, Alkali, masima ma isi mea corrosive, e le oona, mu retardant, leai se faalavelave pa.
Fa'aaoga masani i: uaea ma uaea (uaea mine koale, uaea fa'amaonia i tulaga UL ma VDE), fa'agasolo vai, fa'aau ta'avale, fa'amau, pepa pa'u, fa'asologa o paipa PVC, mea fa'amaneta, suiga ABS, ma isi.
FA'AALIGA O CPE I FILM
1. Plasticizers ma antioxidants faʻaaogaina i paʻu ma palasitika e sili atu le aoga i semi-malo ma vaivai PVC, aemaise lava i tui tui ma oloa gaosi lona lua. Faʻaaoga le CPE e pei o le PVC plasticizer, leai se faʻafefe, leai se femalagaiga, leai se faʻaaogaina, ma o loʻo i ai le ozonation resistance ma le corrosion resistance, fetaui lelei. Pe a faia ata tifaga, paʻu faʻamalosi, seevae seevae, faʻauʻu, ma isi, e mafai ona faʻateleina le vaivai, lanu ma faʻaumiumi le ola tautua o oloa. E faʻaaogaina e gaosia ai paipa faʻafefete, uaea, ipu, ma vaega oomi mo le suauu, ma o lona tau e 30% i le 40% maualalo nai lo isi PVC ua suia. E mafai ona faia le foam e fa'afefe ai le mu ma le malulu e ala i le fa'afefiloi o le CPE ma le PE ma le PP, ma e sili atu lona fa'atinoga nai lo le polyurethane ma le polystyrene foam. O le faʻaaogaina o le CPE o se plasticizer tumau mo ABS, AS, PS, ma isi mo le gaosiga o atigi mea faigaluega fale, laina, vaega taʻavale, mea faʻaeletoroni ma eletise, ma lipine mumu e mafai ona faʻaitiitia ai tau.
2. Faʻaaogaina i mea faʻapipiʻi paʻu CPE o se paʻu faʻapipiʻi faʻapitoa faʻatasi ma le faʻatinoga sili ona lelei, aemaise lava mo uaea ma uaea ma manaʻoga maualuga i luga o le vevela vevela, faʻalavelave afi ma mea eletise, ma fusi faʻafefe maualuga. E mafai foi ona faʻaaogaina mo paipa suauu, fau fale e le susu ma mea faʻainisinia linings, ma isi. O le paʻu vulcanized faia i le CPE elastic mea faavae e sili atu i le neoprene i tulaga o le ofuina teteʻe, meatotino dielectric, vevela tetee, matua tetee, suauu tetee, ma isi. E tutusa ma le paʻu, o lona tau e maualalo ifo nai lo le neoprene ma le nitrile paʻu, ma e mafai ona faʻaaogaina i le uaea ma le cable alamanuia, vaega taʻavale, vevela maualuga ma faʻamau faʻafefe suauu, faʻauʻu, ma isi. e tutusa ma le pa'u chlorinated. E le gata i lea, o le CPE e faʻaaogaina lautele i oloa paʻu eseese.
3. CPE faʻafefiloi CPE / styrene / acrylonitrile copolymer o loʻo i ai le maualuga o le aʻafiaga o le aʻafiaga, faʻalavelave mumu, faʻafefe o le tau ma le maualalo o le vevela, ma o lona fanua faʻaoga e mafai ona tauva ma ABS. CPE/styrene/methacrylic acid copolymer e maualuga lona aafiaga malosi, manino ma mautu tau. O le fa'afefiloiina o le CPE ma le NBR e mafai ona fa'aleleia atili le tele o meatotino fa'apitoa a le NBR ma e mafai ona fa'aogaina e gaosia ai le fa'au'u pa'u fa'asa'o. CPE e mafai ona faʻaaogaina faʻatasi ma le SBR e gaosia ai faʻauʻu paʻu ma paʻu susu; fa'aoga fa'atasi ma le pa'u fa'amoemoe lautele, e mafai ona fa'aaogaina e fai ma mea pa'u e pei o ie timu, pa'u uila felanulanua'i, alavai ea e mumu mu, ma uaea. I Iapani, o le tele o le CPE o loʻo faʻafefiloi ma paʻu ma mea palasitika e faʻaleleia ai le gaosiga o gaioiga, foliga o oloa ma le lelei o totonu. Faʻatasi ai ma le faʻateleina o le gaosiga o le CPE ma le faʻaleleia atili o le gaosiga o tekonolosi, e mafai foi ona gaosia faʻafefiloi CPE / EVA, o loʻo i ai le mautu lelei ma faʻaaogaina e gaosia ai papatusi faʻasaoina i le maualalo o le vevela. CPE / styrene chlorinated o loʻo faʻaaogaina i le gaosiga o insulators eletise, faʻafefe afi mumu, paʻu, ma isi.
4. CPE mo faʻapipiʻi faʻapitoa ma paʻu e le susu e mafai ona faia i ni mea faʻapitoa faʻapitoa, e pei o faʻamaʻi faʻamaʻi, faʻapipiʻi faʻafefe, faʻapipiʻi susu, ma isi mea, e sui ai isi mea faʻapipiʻi. O le CPE/PVC ua fa'afefiloi e fai ai se pa'u e le susu, o se mea e le susu i le vaeluagalemu. O lona tetee i le tau, osone tetee, ma le mumu o le afi e tutusa ma le maualuga o le ethylene-propylene paʻu paʻu, ma e maualalo le tau ma lelei galuega faufale. O le fa'amavaeina o le CPE i so'o so'o masani e mafai ona faia ai ni pa'u e tete'e ai. A maeʻa ona faʻafefiloi CPE ma le asphalt, ma isi mea, e masani ona faʻaaogaina e gaosia ai le taualuga faʻapipiʻi susu ma sili atu le faʻatinoga.
5. High-chlorinated polyethylene High-chlorinated polyethylene o loʻo i ai le chlorine i totonu ole 61% i le 75%. O se mea fa'amalosi, fa'afefe vevela, maualuga-malosi mea tioata-pei o se mea, ma se mea e fai ata tifaga ma ni mea e sili ona lelei. E mafai ona faʻafefiloi ma le vali alkyd, epoxy resin, phenolic, unsaturated polyester, polyacrylate, ma isi mea e fai ai faʻamaʻi faʻamaʻi faʻamaʻi ma le mautu vailaʻau lelei. O lona mumu mumu, tete'e a'a, tetee tau, ma elasticity e sili atu uma nai lo pa'u chlorinated. Su'i ile pa'u chlorinated. Highly chlorinated polyethylene o loʻo i ai mea faʻapipiʻi lelei i uʻamea ma sima, o lea e iai se puipuiga lelei i luga o nei mea. O le polyethylene e maualuga le chlorinated e lelei le fa'afefeteina ma pigments inorganic ma organic, ma e mafai ona fa'aoga e fai ai ni ufiufi mumu.
6. O isi fa'aoga Fa'aopoopo le CPE i le suau'u suauu e mafai ona fa'aitiitia ai lona tulaga fa'aaisa, ma fa'aopoopo mo le suau'u fa'apipi'i e mafai ona fa'aleleia atili ai le malosi o le suau'u i le mamafa. Faʻaopoopoina le CPE i le tipiina o le suauʻu ma le suauʻu suauʻu e mafai ona faʻaleleia ai le ola tautua o meafaigaluega. E le gata i lea, o loʻo faʻaaogaina foʻi le CPE i paʻu paʻu ma mea mafiafia o lomitusi lolomi, ma isi, ma o lona faʻaogaina o loʻo faʻalauteleina pea.
O le a le matafaioi a le fa'aopoopoina o le CPE i le gaosiga o palasitika?
Chlorinated polyethylene (CPE) o se mea polymer tumu, foliga o le paʻepaʻe paʻepaʻe, e le oona ma le tofo, e lelei le tau tetee, ozone tetee, kemikolo tetee ma le matua tetee, ma e lelei le suauu tetee, mumu mumu ma valivali faatinoga. Malolosi lelei (fa'alelei pea i le -30 ° C), fetaui lelei ma isi mea polymer, vevela vevela maualuga, fa'aleagaina e maua ai le HCl, HCL e mafai ona fa'afefeteina le fa'afefeteina o le CPE. O le polyethylene chlorinated o se mea polymer e faia mai le maualuga-density polyethylene (HDPE) e ala i le faʻaogaina o le chlorination. E tusa ai ma fausaga eseese ma faʻaoga, e mafai ona vaevaeina le polyethylene chlorinated i le resin type chlorinated polyethylene (CPE) ma le elastomer type chlorinated polyethylene (CM). I le faaopoopo atu i le faʻaaogaina na o ia, e mafai foi ona faʻafefiloi resini vevela ma le polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS ma e oʻo lava i le polyurethane (PU). I totonu o pisinisi paʻu, e mafai ona faʻaaogaina le CPE o se paʻu faʻapitoa maualuga, maualuga, ma e mafai foi ona faʻaaogaina i le ethylene-propylene rubber (EPR), butyl rubber (IIR), nitrile rubber (NBR), chlorosulfonated polyethylene ( CSM), ma isi. O lo'o fa'aogaina isi paluga pa'u.
