ʻOiai he ʻokoʻa loa lākou, ma ke ʻano he mea hoʻohuhū, kaʻana like lākou i kekahi mau ʻano kumu:
ʻO ke ʻano porous a me ka māmā: Loaʻa iā lāua ʻelua ka nui o nā ʻōhū i loko, no laila he haʻahaʻa haʻahaʻa a māmā loa ke kaumaha. ʻO ka haʻalulu haʻalulu a me ka hoʻopaʻa ʻana: Hiki i ke ʻano o ke kelepona ke hoʻopili pono a hoʻopuehu i ka ikehu hopena, e hāʻawi ana i ka pale maikaʻi loa.
Ka wela wela a me ke kani kani: ʻO ka ea i hoʻopaʻa ʻia i loko o nā keena he insulator maikaʻi ia o ka wela a me ke kani, no laila ua loaʻa iā lāua kekahi mau hana mālama wela a hoʻemi i ka walaʻau.
Hiki ke hoʻololi a me ke kaʻina hana: Loaʻa iā lāua ʻelua ke ʻano o ka maʻalahi a hiki ke hana ʻia i nā ʻano like ʻole ma o ka hana lua e like me ke ʻoki ʻana, ke kahakaha ʻana, a me ke kahakaha ʻana.
Ke kū'ē kemika: He kū'ē maikaʻi nā mea ʻelua i nā mea kemika maʻamau e like me nā waikawa dilute a me nā alkali dilute.
Hoʻokumu ʻia kā lākou ʻokoʻa nui i kā lākou "ʻano kemika" ʻokoʻa loa, e alakaʻi ana i kahi honua o ka ʻokoʻa i ka hana.
1. ʻO keʻano kemika a me ke kūpaʻa wela: ʻO kēia ka mea nui a koʻikoʻi. ʻO ka mea kumu o ka PE foaming he polyethylene, he plastic polymer hydrocarbon maʻamau. Hoʻoholo kēia kūkulu ʻana he ʻilihune loa kona pale ʻana i ka wela, a ʻo ka mea maʻamau, hiki ke noho paʻa wale ma kahi kaiapuni mai -50 degere a 80 degere. Ke piʻi ka mahana ma mua o 80 degere, e hoʻomaka ia e palupalu, emi a hoʻoheheʻe. A he mea wela loa. I ka wā e ʻā ai, e heheʻe a kulu, e hoʻopuka ana i ke ahi a me ka uahi ʻeleʻele. ʻO ke kumu kumu o ka huʻa silikoni, ʻo ia ka lāʻau silikoni, nona ke kaulahao nui molekala he paʻa kilikaka -oxygen (Si{13}}O) ikaika. Hāʻawi kēia ʻano huila ʻano-anokani iā ia me ke kūpaʻa ʻokoʻa. Hiki ke hiki i ka -mana lō'ihi ke kū i ka -60 degere a hiki i ka 250 degere, a hiki iā ia ke pale i nā mahana ma luna o 300 degere no ka manawa pōkole me ke ahi'ole. Loaʻa iā ia ke kinai iā ia iho-ke hoʻoneʻe ʻia mai ke kumu ahi a ʻo ia ka mea ʻoi aku ka maikaʻi o ke ahi.
2. Ka palekana o ke kaiapuni a me ka pilau: ʻAʻole -ʻawaʻawa ka PE e hoʻohāhā ana i ka maka, akā i ka wā o ka hana ʻana, hiki ke hoʻohui ʻia nā mea hoʻohui a i ʻole ke hoʻohana ʻia ʻana o nā mea hana hou, i mea e loaʻa ai i ka huahana kekahi ʻala ʻili. E hoʻokuʻu ʻia nā kinoea ʻino i ke ahi. Kaulana ʻo Silicone foam no kona biocompatibility kiʻekiʻe loa a me ka inertness kemika. ʻAʻole-ʻawaʻawa a ʻala ʻole, a palekana loa inā pili pololei me ka meaʻai a i ʻole ka ʻili kanaka. Hiki iā ia ke hā'awi i nā palapala hō'oia 'ai ko'iko'i loa a me-e like me ka US FDA a me USP Class VI. ʻO ke koena ma hope o ka hoʻopau ʻia ʻana, ʻo ia ka silicon dioxide (ke one).
3. Ka waiwai paa a me ka -makahiki: ʻAʻole kū ʻole ke ʻano o ke kaula kalapona kalapona o PE i nā kukuna ultraviolet (UV) a me ka ozone. Inā hoʻohana ʻia ma waho no ka manawa lōʻihi, e ʻelemakule koke ia, e lilo i palupalu a pauka, a nalowale kāna hana. He kūlana maikaʻi loa ka ʻūhā silikoni, hiki ke kū i nā kukuna ultraviolet, ozone a me ka oxidation. ʻOiai i loko o nā kaiapuni waho paʻakikī, hiki ke hoʻohana ʻia no nā makahiki he nui me ka ʻole o ka hōʻino ʻana i ka hana, a he lōʻihi loa kona ola lawelawe.
4. Uku: ʻO kekahi o nā mea maikaʻi loa o ka PE foaming ʻo ia kona kumu kūʻai haʻahaʻa loa. ʻO ke kumu kūʻai haʻahaʻa o nā mea maka a me ke kaʻina hana oʻo e lilo ia i kumu kūʻai nui -makemake nui-mea waiwai. He kiʻekiʻe loa ke kumu kūʻai kumu a me ke kumukūʻai o ka silicone foam, a ʻo kona kumu kūʻai maʻamau he mau haneli a ʻoi aku paha ma mua o ka PE foam.