O'ona le Thermoplastic Polymers?

Thermoplastic polymers o se ituaiga palasitika e mafai ona liusuavai ma toe fa'asolo i le tele o taimi e aunoa ma le faia o ni suiga tetele o vaila'au. O loʻo faʻaaogaina lautele i pisinisi eseese, e aofia ai le afifiina, taʻavale, fausiaina, ma fomaʻi. Ae ui i lea, o loʻo faʻatupulaʻia le popolega e uiga i le ono afaina o polymers thermoplastic ma o latou aafiaga i le soifua maloloina o tagata ma le siosiomaga.

Le o'ona o polymers thermoplastic depends i luga o le tele o mea, e aofia ai a latou vailaʻau faʻapipiʻi, faʻaopoopoga, ma metotia faʻagaioiga. O nisi polymers thermoplastic, pei ole polyvinyl chloride (PVC), e iai vaila'au o'ona e pei ole phthalates, lead, ma cadmium, lea e mafai ona tafe mai mea ma faʻaleagaina ai le siosiomaga ma filifili meaai. PVC ua lauiloa foi e faʻasaʻo ai dioxins, o se vaega oona o vailaʻau e mafai ona mafua ai le kanesa, faʻafitauli o le fanautama ma le atinaʻe, ma le faʻaleagaina o le tino.

O isi polymers thermoplastic, pei ole polyethylene (PE) ma polypropylene (PP), e manatu e sili atu le saogalemu ma itiiti le oona nai lo PVC. Ae ui i lea, atonu o loʻo iai pea mea faʻaopoopo e pei o stabilizers, antioxidants, ma plasticizers, e mafai ona i ai ni aʻafiaga faʻalesoifua maloloina pe a latou o ese mai mea ma ulu i le tino. Mo se faʻataʻitaʻiga, o nisi palasitika faʻaaogaina i le PE ma le PP, e pei o le bisphenol A (BPA) ma le phthalates, ua fesoʻotaʻi ma faʻalavelave faʻalavelave, faʻafitauli o le atinaʻe, ma le kanesa.

Le o'ona o polymers thermoplastic fo'i depends i luga o latou auala fa'agaioiga. O nisi auala e fa'agaoio ai, e pei o le tui tui ma le extrusion, e mafai ona fa'atupu ai asu o'ona ma vaega e ono afaina ai tagata faigaluega ma le si'osi'omaga. Mo se faʻataʻitaʻiga, o le gaosiga o le polycarbonate (PC), o se polymer thermoplastic o loʻo faʻaaogaina i mea tau eletise ma masini faʻafomaʻi, e aofia ai le faʻaaogaina o le bisphenol A (BPA), o se vailaʻau e fesoʻotaʻi ma faʻalavelave faʻalavelave ma le kanesa.

Ina ia faʻaitiitia le ono afaina o polymers thermoplastic, o tulafono faatonutonu ma tulaga faʻavae ua atiaʻe e faʻatapulaʻa le faʻaogaina o vailaʻau matautia ma faʻamautinoa le saogalemu o tagata faigaluega ma tagata faʻatau. Mo se faataitaiga, o le EurOpen Union ua faʻasaina le faʻaaogaina o nisi o phthalates i meataalo ma mea e tausi ai tamaiti, ma ua faʻatapulaʻaina e le Iunaite Setete le faʻaaogaina o le taʻitaʻi ma cadmium i oloa fa'atau. E le gata i lea, o nisi kamupani ua latou fausia ni auala e sili atu ona saogalemu i polymers thermoplastic masani, e pei o palasitika biodegradable faia mai punaoa faʻafouina.
I le faaiuga, o le oona o polymers thermoplastic depends i luga o latou tuufaatasiga kemikolo, faaopoopoga, ma auala gaosi. O nisi polymers thermoplastic, pei ole PVC, o lo'o i ai vaila'au o'ona e mafai ona liu mai mea ma fa'aleagaina ai le si'osi'omaga ma filifili mea'ai. O isi polymers thermoplastic, pei ole PE ma le PP, e manatu e sili atu le saogalemu ae atonu o lo'o iai pea mea fa'aopoopo e mafai ona afaina ai le soifua maloloina. Ina ia faʻamautinoa le saogalemu o tagata faigaluega ma tagata faʻatau, o tulafono ma tulaga faʻavae eseese ua atiaʻe e faʻagata ai le faʻaogaina o vailaʻau mataʻutia ma faʻalauiloaina le faʻaogaina o isi mea saogalemu.