ʻO nā pā polyethylene kēia no ka mea, ua ālai nā kaulahao molekala i ko lākou photocrystals i kekahi manawa, e waiho ana i kahi ʻāpana amorphous nui i loko o ka biomolecule, hiki i nā pā polyethylene ke komo i ka nui o ka ikehu kinetic.Wahi a ka ʻōlelo, hoʻohana ʻia ke ala astm-D256 e hoʻoholo ai i ka hopena o ka waiwai o ka ikaika compressive plastic.E like me ka hoʻohālikelike ʻana, hiki ke hoʻokaʻawale ʻia ka ikaika compressive o ka papa polyethylene i polycarbonate, ʻike ʻia ka polycarbonate no kona kū ʻana i ka hopena, a hiki ke hoʻohana ʻia e like me nā huahana kaila maʻamau.
He haʻahaʻa loa ke kūʻē ʻana o ka pā polyethylene.ʻOi aku ka maikaʻi o ka ʻaʻahu ʻana o ka papa polyethylene, ka haʻahaʻa haʻahaʻa haʻahaʻa a me ka maikaʻi ponoʻī.ʻO ia ka moeʻuhane maka o ka bushing, roller and bushing.ʻO ke koho ʻana o ka papa polyethylene e like me ka friction pair, ʻaʻole hiki ke hoʻomaikaʻi wale i ke ola lawelawe i hōʻino ʻia o nā keʻena, ka papa polyethylene a hiki ke mālama i nā kumuwaiwai.
ʻO ka papa polyethylene maikaʻi ke kūpaʻa kemika.ʻOi aku ka maikaʻi o ka pale kemika i ka papa polyethylene.Ma waho aʻe o ka waikawa nitric concentrated a me ka waikawa sulfuric, ʻaʻole maʻalahi ka papa polyethylene e hoʻopaʻa ʻia i loko o kekahi hopena alkaline a acidic.Hiki ke hoʻohana ʻia e like me ka waika hydrochloric dilute ma 80 ℃, i ka sodium cyanide & LT;ʻO ka waiʻona hydrochloric & lt;75% maʻemaʻe, hiki ke hoʻohana pū me ka wai a me ka hoʻomaʻemaʻe wai.E like me ka ʻike a nā mea a pau, ʻoi aku ka maʻalahi o ka pehu o ka papa polyethylene i nā aliphatic hydrocarbons a i ʻole halogenates (ʻo ia hoʻi i ka hoʻomau ʻana i ke kiʻekiʻe kiʻekiʻe), no laila pono e uku ʻia i kāna hoʻohana.
E hoʻomaikaʻi i ka pale ʻana o ka papa polyethylene.ʻO ke kūpaʻa lole kiʻekiʻe kekahi o nā hiʻohiʻona hoʻowalewale, ka papa polyethylene i ka nui o nā papahana i ka hoʻohana ʻana i kahi waiwai hoʻohana kī.I kēia pae, ʻo nā papa polyethylene plastik āpau ke kūpaʻa maikaʻi i ka lole, a ʻo ka nui o nā mea metala ʻaʻole maʻamau e like me ka wā ma mua.Me ka hoʻomaikaʻi ʻana o ka paona molekala o ka polyethylene kiʻekiʻe, ua hoʻomaikaʻi ʻia ka pale ʻana o kēia ʻano mea.Ka hopena o ka papa polyethylene.Pili ka ikaika compressive o ka pā polyethylene i kona kaumaha mole.Ke emi iho ke kaumaha o ka molekala ma mua o 2 miliona, piʻi ka ikaika compressive o ka pā polyethylene me ka piʻi ʻana o ke kaupaona pili, a ʻo ka waiwai kiʻekiʻe ma kahi o 2 miliona.I kēia manawa, e emi ana ka ikaika compressive hopena me ka piʻi ʻana o ke kaumaha molekala pili.
Ka manawa hoʻouna: Mei-31-2022
