Pe a faʻatusatusa i tioata ma mea uʻamea, o uiga autu o palasitika o:
1, e maualalo le tau, e mafai ona toe faʻaaogaina e aunoa ma le faʻamaʻiina, talafeagai mo le faʻaaogaina o se mea mataʻutia mo le gaosiga o masini faʻafomaʻi faʻaaogaina;
2, o le gaioiga e faigofie, o le faʻaaogaina o lona palasitika e mafai ona faʻaogaina i ni fausaga aoga eseese, ma o le uʻamea ma le tioata e faigata ona gaosia i le fausaga faigata o oloa;
3, malosi, mausi, e le faigofie ona gau e pei o tioata;
4, faʻatasi ai ma le inertness vailaʻau lelei ma le saogalemu o meaola.
O nei faʻamanuiaga faʻatinoga e faʻaogaina ai palasitika lautele i masini faʻafomaʻi, e aofia ai le polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), polycarbonate (PC), ABS, polyurethane, polyamide, elastomers thermoplastic, polysulfone ma polyether eter ketone.Faʻafefiloi e mafai ona faʻaleleia atili le faʻatinoga o palasitika, ina ia faʻaalia le sili ona lelei o resini eseese, e pei o le polycarbonate / ABS, polypropylene / elastomer faʻafefiloi suiga.
Ona o le faʻafesoʻotaʻi ma vailaʻau vai poʻo le faʻafesoʻotaʻi ma le tino o le tagata, o manaʻoga autu o palasitika faʻafomaʻi o vailaʻau mautu ma biosafety.I se faapuupuuga, o vaega o mea palasitika e le mafai ona faʻafefe i totonu o vailaʻau vai poʻo le tino o le tagata, o le a le mafua ai le oona ma le faʻaleagaina o gaʻo ma totoga, ma e le oona ma le afaina i le tino o le tagata.Ina ia mautinoa le biosafety o palasitika faʻafomaʻi, palasitika faʻafomaʻi e masani ona faʻatau atu i le maketi e faʻamaonia ma faʻataʻitaʻiina e pulega faʻafomaʻi, ma o loʻo faʻamaonia manino e tagata faʻaoga po o fea togi e togi faʻafomaʻi.
Fomaʻi palasitika i le Iunaite Setete e masani ona pasia FDA certification ma USPVI biological detection, ma fomaʻi vasega palasitika i Saina e masani ona tofotofoina e Shandong masini faafomai Testing Center.I le taimi nei, o loʻo i ai pea le tele o mea faʻapitoa faʻafomaʻi i totonu o le atunuʻu e aunoa ma se lagona faʻamaonia o le biosafety certification, ae faʻatasi ai ma le faʻaleleia malie o tulafono faatonutonu, o nei tulaga o le a sili atu ma sili atu ona faʻaleleia.
E tusa ai ma le fausaga ma le malosi manaʻomia o le masini oloa, matou te filifilia le ituaiga saʻo o palasitika ma le vasega saʻo, ma fuafua le faʻaogaina o tekinolosi o mea.O nei meatotino e aofia ai le faʻatinoina o galuega, malosi faʻainisinia, tau o le faʻaogaina, auala faʻapipiʻi, faʻamaʻi, ma isi.
E fitu palasitika fa'afoma'i e masani ona fa'aaogaina
1. Polyvinyl chloride (PVC)
O le PVC o se tasi o ituaiga palasitika sili ona aoga i le lalolagi.PVC resin e pa'epa'e po'o moli samasama pa'u, PVC mama e atactic, faigata ma vaivai, e seasea faaaogaina.E tusa ai ma faʻaoga eseese, e mafai ona faʻaopoopo mea faʻaopoopo eseese e fai ai vaega palasitika PVC e faʻaalia ai mea faʻapitoa ma masini.O le fa'aopoopoina o se aofa'i talafeagai o le palasitika i le PVC resin e mafai ona faia ai ni mea faigata, vaivai ma manino.
O le PVC malosi e le o iai pe aofia ai se vaega itiiti o le plasticizer, e lelei le tensile, punou, compressive ma aʻafiaga teteʻe, e mafai ona faʻaaogaina e avea o se mea faʻavae naʻo.O le PVC malu o loʻo i ai le tele o mea faʻapipiʻi, ma o lona vaivai, faʻalauteleina i le malepelepe ma le malulu malulu e faʻateleina, ae o le brittleness, maʻaʻa ma le malosi tensile ua faʻaitiitia.Ole maualuga ole PVC mama ole 1.4g / cm3, ma le tele o vaega palasitika PVC faʻatasi ai ma mea faʻapipiʻi ma faʻatumu e masani lava ile 1.15 ~ 2.00g/cm3.
E tusa ai ma faʻamatalaga maketi, e tusa ma le 25% o oloa palasitika faafomaʻi o PVC.E mafua ona o le maualalo o le tau o le resini, o le tele o faʻaoga, ma lona faʻaogaina faigofie.PVC oloa mo talosaga faafomai o: hemodialysis paipa, manava manava, okesene tubes ma isi.
2. Polyethylene (PE, Polyethylene)
Polyethylene palasitika o le ituaiga sili ona tele i le alamanuia palasitika, susu, leai se tofo, leai se manogi ma le oona iila iila vaega vaega.O loʻo faʻaalia i le tau taugofie, lelei le faʻatinoga, e mafai ona faʻaaogaina lautele i alamanuia, faʻatoʻaga, afifiina ma pisinisi i aso uma, ma o loʻo i ai se tulaga taua i le pisinisi palasitika.
PE e masani ona aofia ai le polyethylene maualalo (LDPE), polyethylene maualuga (HDPE) ma le polyethylene mamafa mole maualuga (UHDPE) ma isi ituaiga.O le HDPE e itiiti ni filifili lala i luga o le filifili polymer, maualuga atu le mamafa mole mole, tioata ma le mamafa, sili atu le maaa ma le malosi, le lelei o le opacity, maualuga le liusuavai, ma e masani ona faʻaaogaina i vaega tui.O le LDPE e tele lala lala, o le mea lea e laʻititi le mamafa mole mole, tioata ma le mamafa e maualalo, faʻatasi ai ma le sili atu le malu, aʻafiaga o le tetee ma le manino, e masani ona faʻaaogaina mo le feulaina o ata tifaga, o loʻo faʻaaogaina nei le PVC.E mafai foi ona faʻafefiloi mea HDPE ma LDPE e tusa ai ma manaʻoga faʻatinoga.O le UHDPE e maualuga lona malosi, maualalo le feteʻenaʻiga, tetee atu i le faʻalavelave faʻalavelave ma uiga lelei o le faʻaogaina o le malosi, ma avea ai ma mea lelei mo fesoʻotaʻiga suilapalapa, tulivae ma tauau.
3. polypropylene (PP, polypropylene)
O le Polypropylene e leai se lanu, leai se manogi ma e le oona.E foliga pei o le polyethylene, ae e sili atu ona manino ma mama nai lo polyethylene.O le PP o se thermoplastic ma mea sili ona lelei, faʻatasi ai ma le mamafa faʻapitoa (0.9g / cm3), e le oona, faigofie ona faʻagasolo, aʻafiaga aʻafiaga, anti-deflection ma isi mea lelei.O loʻo i ai le tele o faʻaoga i le olaga i aso taʻitasi, e aofia ai ato lalaga, ata tifaga, pusa liliu, mea e faʻafefe ai uaea, meataalo, taʻavale taʻavale, filo, masini fufulu ma isi.
Fomaʻi PP o loʻo i ai le maualuga o le manino, paʻu lelei ma le faʻasaʻoina o le radiation, ina ia i ai le tele o faʻaoga i totonu o masini faʻafomaʻi ma fale faʻapipiʻi.O mea e le o ni PVC ma PP o le tino autu o loʻo faʻaaogaina nei e fai ma sui i mea PVC.
4. Polystyrene (PS) ma K resin
PS o le ituaiga palasitika lona tolu sili ona tele pe a uma le polyvinyl chloride ma le polyethylene, e masani ona faʻaaogaina e avea o se palasitika faʻapipiʻi tasi-vaega ma faʻaoga, o uiga autu o le mamafa mama, manino, faigofie ona vali, e lelei le faʻatinoina o gaioiga, faʻaaoga lautele i palasitika i aso uma. , vaega eletise, meafaifa'aili ma mea fa'ale-aganu'u ma a'oa'oga.O lona fua e malō ma pala, ma e maualuga lona fa'asili o le fa'alauteleina o le vevela, lea e fa'atapula'aina ai lona fa'aogaina i le inisinia.I le tele o tausaga talu ai, na faʻaleleia ai le polystyrene ma le styrene-based copolymers e faʻatoʻilaloina le faaletonu o le polystyrene i se tulaga patino.K resin o se tasi oi latou.
K resin e faia i le styrene ma le butadiene copolymerization, o se polymer amorphous, manino, tofo, leai se oona, density o le 1.01g/cm3 (maualalo atu i le PS, AS), maualuga atu aafiaga tetee nai lo PS, manino (80 ~ 90%). ) lelei, vevela vevela vevela o le 77 ℃, O le aofaʻi o le butadiene o loʻo i totonu o mea K, o lona maʻaʻa e ese foi, ona o le lelei o le suavai o mea K, o le gaosiga o le vevela e lautele, o lona uiga e lelei lona gaioiga.
O faʻaoga autu i le olaga i aso taʻitasi e aofia ai ipu, LIDS, fagu, afifi teuteu, tautau, meataalo, mea e sui ai le PVC, afifiina meaʻai ma sapalai afifiina faafomaʻi.
5. ABS, Acrylonitrile Butadiene Styrene copolymers
E iai le malosi ole ABS, ma'a'a, tete'e a'afiaga ma tete'e vaila'au, tete'e fa'avevela ma fa'ama'i fa'ama'i ethylene oxide.
ABS i le talosaga faafomaʻi e masani ona faʻaaogaina e avea ma mea faʻapitoa, kilipa paʻu, nila palasitika, pusa meafaigaluega, masini faʻapitoa ma faʻalogo faʻalogo fale, aemaise lava nisi fale faʻafomaʻi tetele.
6. Polycarbonate (PC, Polycarbonate)
O uiga masani o le PCS o le malosi, malosi, ma'a'a'a, ma le vevela e fa'amama le ausa, lea e sili ai le PCS e pei o le hemodialysis filiga, ta'otoga mea faigaluega, ma tane okesene (pe a fa'aoga i taotoga fatu, e mafai e lenei meafaifa'aili ona aveese le kasa okesene mai le masini. toto ma faateleina le okesene);
O isi fa'aoga a le PC i vaila'au e aofia ai faiga tui e leai se nila, mea fa'asu'u, ipu fa'atoto toto, ma pistons.O le faʻaaogaina o lona manino maualuga, o tioata masani myopia e faia ile PC.
7. PTFE (Polytetrafluoro ethylene)
O le polytetrafluoroethylene resin o se paʻepaʻe paʻepaʻe, foliga foliga, lamolemole ma le le faʻapipiʻi, o le palasitika sili ona taua.O le PTFE o loʻo i ai meatotino sili ona lelei e le faʻatusalia i le thermoplastics lautele, o lea e taʻua ai o le "tupu palasitika".O lona fa'a'ese'esega e sili ona maualalo i totonu o palasitika, e lelei le biocompatibility, ma e mafai ona faia i totonu o va'a toto ma isi masini fa'apipi'i sa'o.
Taimi meli: Oke-25-2023