ʻO ka wehewehe ʻana: He copolymer o ka ethylene a me propylene (EPR), i hui pū ʻia me ke kolu comonomer adiene (EPDM), ua loaʻa iā Ethylene Propylene ka ʻae ʻana i ka ʻoihana sila ākea no kāna ozone maikaʻi loa a me nā ʻano kūʻē kemika.
Nā mea hoʻohana nui: nā hoʻohana kūʻē i ka wā ma waho.Pūnaehana kaʻa kaʻa.Pūnaehana hoʻoluʻu kaʻa.Nā noi wai.Nā kāʻei hoʻokele haʻahaʻa.
Kaulana Mahana
Pūhui maʻamau: -40° a i +275°F
Hui Kūikawā: -67° a i +302°F
Paʻa (Shore A): 40 a 95
Nā hiʻohiʻona: Ke hoʻohui ʻia me ka hoʻohana ʻana i ka peroxide curing agents hiki i ka lawelawe wela kiʻekiʻe ke hiki i +350°F.Kūleʻa maikaʻi i nā ʻakika a me nā mea hoʻoheheʻe (ie MEK a me Acetone).
Nā palena: ʻAʻohe kūʻē i ka wai hydrocarbon.
Loaʻa i ka EPDM ke kū'ē kū'ē i ka wela, ka wai a me ka mahu, ka alkali, ka ʻakika māmā a me nā mea hoʻoheheʻe oxygenated, ozone, a me ka lā (-40ºF a +275ºF);akā ʻaʻole ʻōlelo ʻia no ka ʻaila, ka aila ʻaila a me ka momona, a me nā kaiapuni hydrocarbon.ʻO kēia pūhui ʻōpala kaulana ka mea maʻamau ka koho mua no nā noi kāʻei hoʻokele haʻahaʻa.
Ka manawa kau: Apr-04-2023