Nā hiʻohiʻona hana o nā huahana palaki

Hoʻohālikelike ʻia me nā mea ʻē aʻe, loaʻa i nā plastics nā hiʻohiʻona hana ʻelima:
Kaumaha māmā: ʻO ka plastik kahi mea māmā me ka puʻunaue pili pili ma waena o 0.90 a me 2.2.No laila, inā hiki i ka plastic ke lana i ka ʻili wai, ʻoi aku ka nui o ka plastic foamed, ma muli o nā micropores i loko, ʻoi aku ka māmā o ke ʻano, a ʻo 0.01 wale nō ka mānoanoa pili.Hiki i kēia waiwai ke hoʻohana i nā plastics i ka hana ʻana i nā huahana e pono ai ke kaumaha.
Paʻa kemika maikaʻi loa: ʻO ka hapa nui o nā plastics he kūpaʻa maikaʻi ka corrosion i nā kemika e like me nā waikawa a me nā alkalis.ʻOi aku ka maikaʻi o ka polytetrafluoroethylene (F4) i ʻike nui ʻia ʻo ke aliʻi o nā plastics, ʻoi aku ka maikaʻi o kona kūpaʻa kemika ma mua o ke gula, a ʻaʻole ia e hōʻino inā e hoʻolapalapa ʻia i loko o ka "aqua regia" no nā hola ʻoi aku ma mua o ʻumi.No ka loaʻa ʻana o ka paʻa kemika maikaʻi loa ʻo F4, ʻo ia ka mea kūpono i ka corrosion-resistant, e like me F4 hiki ke hoʻohana ʻia i mea no ka lawe ʻana i nā pipeline wai corrosive a viscous.

ʻOi aku ka maikaʻi o ka hana insulation uila: ʻO nā plastic plastic maʻamau nā mea hoʻokele uila, a ʻo ko lākou kūʻē ʻana o ka ʻili a me ke kūpaʻa leo nui loa, hiki ke hōʻike ʻia i nā helu a hiki i 109-1018 ohms.He nui ka puʻuwai haʻihaʻi, a he liʻiliʻi ka waiwai tangent poho dielectric.No laila, loaʻa i nā plastics ka nui o nā noi i nā ʻoihana uila a me nā mīkini.
Loaʻa i nā mea hoʻokele wela maikaʻi ka hopena o ka hoʻohaʻahaʻa leo a me ka haʻalulu haʻalulu: ʻO ka mea maʻamau, ʻoi aku ka haʻahaʻa o ka conductivity thermal o nā plastics, e like me 1/75-1/225 o ke kila., ʻoi aku ka maikaʻi o ke kani ʻana a me ke kū ʻana i ka haʻalulu.Ma ke ʻano o ka insulation thermal, he 40% kiʻekiʻe nā puka aniani aniani hoʻokahi ma mua o nā puka aniani aluminika hoʻokahi, a ʻo nā puka aniani ʻelua he 50% kiʻekiʻe.Ma hope o ka hui ʻana o ka puka aniani me ke aniani insulating, hiki ke hoʻohana ʻia i nā hale noho, nā hale keʻena, nā papa a me nā hōkele, e mālama i ka hoʻomehana ʻana i ka hoʻoilo a me ka mālama ʻana i nā lilo ea i ke kauwela, a maopopo loa nā pōmaikaʻi.
ʻO ka māhele ākea o ka ikaika mechanical a me ka ikaika kiko'ī kiʻekiʻe: he paʻakikī kekahi e like me ka pōhaku a me ke kila, a he palupalu kekahi e like me ka pepa a me ka ʻili;mai ka hiʻohiʻona o nā waiwai mechanical e like me ka paʻakikī, ka ikaika tensile, ka elongation a me ka ikaika o ka hopena o nā plastics, ka laulā ākea ākea, he nui ka lumi no ke koho.Ma muli o ka umekaumaha kikoʻī liʻiliʻi a me ka ikaika kiʻekiʻe o ka plastic, he ikaika kikoʻī kiʻekiʻe kona.Ke hoʻohālikelike ʻia me nā mea ʻē aʻe, ʻike ʻia nā hemahema o ka plastics, e like me ka maʻalahi o ka puhi ʻana, ʻaʻole kiʻekiʻe i ka ʻoʻoleʻa e like me nā metala, ʻilihune i ka wā kahiko, ʻaʻole pale wela.