Hoʻolauna i nā huahana lula ʻohana

2021/01/20

ʻO nā Plastics he mau mea hoʻopili polymer, ʻike pinepine ʻia e like me nā plastics a i ʻole nā ​​resins, i polymerized ʻia e ka hoʻohui a condensation paha o nā monomers e like me nā mea maka. Hiki iā lākou ke hoʻololi kūʻokoʻa i kā lākou haku mele a me ko lākou ʻano. Hoʻokomo ʻia lākou i nā resins synthetic, mea hoʻopihapiha, plasticizers, stabilizers, lubricants, colorant a me nā mea hoʻohui.

Polyethylene terephthalate (PET)

Hana ʻia ka wai mineral ākea a me nā ʻōmole inu carbonated o polyethylene terephthalate (PET). I ka 1946, ua paʻi ka United Kingdom i ka palapala kila mua no ka hoʻomākaukau ʻana o PET. I ka 1949, ua hoʻopau ka British ICI formula i ka hoʻokolohua pailaka, akā ma hope o ke kūʻai ʻana o ka United States DuPont Company i ka palapala kila, ua hoʻokumu ʻia ka mea hana i 1953, a ua ʻike ʻia ka hana ʻoihana mua i ka honua.

Pono:

1, ʻaila kūpaʻa, pale momona, acid enic, dilute alkali resistence, ka nui o nā mea hoʻoheheʻe.

2, ke aniani moakaka kiʻekiʻe, hiki ke lawe ʻia ka transmittance malamalama i ʻoi aku ma mua o 90%, he hana hōʻike maikaʻi nā huahana pūʻolo.

3, loaʻa iā ia ke kūpale o ke anuanu haʻahaʻa maikaʻi loa, hiki ke kū i ka -30â "temperature haʻahaʻa haʻahaʻa, i ke ʻano o -30â" ƒ-60â "ƒ hoʻohana.

4, haʻahaʻa ke kinoea a me ka wai wai, hiki i ke kūpale ʻana i ke kinoea maikaʻi loa, ka wai, ka ʻaila a me nā hana ʻaʻala kūikawā.

5, transparency kiʻekiʻe, hiki iā ia ke pale i ke kukui ultraviolet, ʻilana maikaʻi.

Nā memo no ka hoʻohana:

ʻAʻole hiki ke hana hou i nā hue inu me ka wai wela, kūpale kēia mea wela i ka 70 "ƒ, hoʻopau ka mahana wela i nā mea ʻinoʻino, kūpono wale no nā mea inu mehana a mea inu paha, maʻalahi maʻalahi ka wai wela a mehana paha i ka hoʻomehana ʻana, aia nā mea ʻino i hoʻoheheʻe ʻia ke kino o ke kanaka.