He aha nā ʻano o nā lako Sila

▪Kūpa Nitrile (NBR)

ʻO ka NBR kahi ʻano ʻōpala i hoʻohana pinepine ʻia no nā hana ʻenehana.He paʻa loa ia i ka hapa nui o nā hydrocarbons e like me nā aila, nā momona a me nā momona, a me nā alkalis dilute a me ka waikawa nitric, a hiki ke hoʻohana ʻia ma kahi wela i ʻōlelo ʻia he 95°C (203°F).No ka mea ua luku ʻia ʻo NBR e ka ozone, ʻaʻole hiki ke ʻike ʻia i ke kukui UV a pono e mālama ʻia mai ka mālamalama.

▪Ka Rubber Fluorinated (FPM)

Hoʻohana pinepine ʻia ʻo FPM ma kahi kūpono ʻole o nā ʻano ʻāpana ʻē aʻe, ʻoi aku ka nui ma nā wela kiʻekiʻe a hiki i 180°C (356°F), me ka paʻa kemika maikaʻi.a me ke kū'ē i ka ozoneno ka nui o nā huahana, akā pono e pale i ka wai wela, ka mahu, ka lye, ka waika a me ka waiʻona.

▪Polytetrafluoroethylene (PTFE)

ʻO ka PTFE ke kūpaʻa kemika maikaʻi loa a me ka pale ʻana i ka corrosion (ʻo ia kekahi o nā mea ʻoi aku ka maikaʻi o ka corrosion-kūpaʻa i ka honua i kēia mau lā, koe wale nā ​​metala alkali hoʻoheheʻe ʻia, ʻaʻole hiki ke hoʻopau ʻia ʻo PTFE e nā mea hoʻoheheʻe kemika).No ka laʻana, ke hoʻolapalapa ʻia i loko o ka sulfuric acid concentrated, nitric acid, hydrochloric acid, alcohol, a i ʻole i loko o ka aqua regia, ʻaʻole e loli kona kaumaha a me kāna hana.Ka wela hana: -25°C a 250°C