Faʻatomuaga i oloa a le aiga palasitika

2021/01/20

O palasitika o ni polymer compound, e masani ona taʻua o palasitika poʻo resins, e faʻapolofolaina e ala i le faʻaopopoina poʻo le faʻapipiʻiina o monomers o ni mea masani. E mafai ona latou saoloto suia a latou tuʻufaʻatasiga ma foliga. Latou aofia ai resins gaosia, faʻatumu, plasticizers, stabilizers, lubricants, lanu ma isi faʻaopoopoga.

Polyethylene terephthalate (PET)

Lautele vai vai ma carbonated meainu fagu faia mai polyethylene terephthalate (PET) I le 1946, le United Kingdom lomia le muamua aia mo le sauniuniga o PET. I le 1949, o le British ICI formula faʻamaeʻaina le pailate suʻega, ae ina ua maeʻa le United States DuPont Company faʻatau le pateni, o le masini masini na faʻatuina i le 1953, ma o le muamua gaosiga alamanuia na faʻatinoina i le lalolagi.

Lelei:

1, suauʻu tetee, gaʻoa teteʻe, enic acid, faʻavaivaia alkali tetee, tele solvents.

2, maualuga transparency, malamalama transmittance mafai ona oʻo atu i le sili atu ma le 90%, o afifi oloa i ai se lelei faʻaaliga gaioiga.

3, e sili ona maualalo le teteʻe ile vevela, e mafai ona tatalia le -30â "ƒ maualalo o le vevela, ile tele ole -30â" ƒ-60â "ƒ faʻaaogaina.

4, kesi ma suavai faʻaputuga ausa e maualalo, uma sili lelei teteʻe kesi, vai, suauʻu ma manogi uigaʻese gaioiga.

5, maualuga transparency, mafai poloka ultraviolet malamalama, lelei susulu.

Faʻamatalaga mo le faʻaaogaina:

Mea inu fagu e le mafai ona toe faʻaaogaina i le vai vevela, o lenei mea vevela e teteʻe atu i le 70 ", o le maualuga o le vevela o le a faʻavaivaia ai mea leaga, naʻo le talafeagai mo meainu mafanafana poʻo le vai faʻaalu, o le vevela maualuga suavai poʻo le faʻamafanafanaina e faigofie lava ona toe faʻaleagaina, e i ai mea leaga e ua faʻavaivaia le tino o le tagata.