He aha ka ʻokoʻa ma waena o ka huʻa a me ka sponge?

Nui nō ka ʻokoʻa.

ʻO nā hiʻohiʻona o ka EVA foam: Waterproof: pani ʻia i ka hoʻoheheʻe ʻia ʻana o ka ʻūhā, ʻaʻohe hoʻoheheʻe wai, wai ʻole, hana wai maikaʻi loa.

Ke kū'ē i ka corrosion: kū'ē i ka corrosion kemika e like me ka moana, ka aila meaʻai, ka waikawa, ka alkali, a me nā mea'ē aʻe, antibacterial, non-toxic, odorless, a me ka haumiaʻole.

Ka hana kaʻina hana: ʻaʻohe hui, maʻalahi e hoʻopaʻa, ʻoki, kāpili, mālama a me nā hana a me ka hana ʻana.

ʻO ke kūpaʻa haʻalulu: ke kūpaʻa kiʻekiʻe, ke kūpaʻa kākoʻo kiʻekiʻe, ka ductility kiʻekiʻe, ke kūpaʻa haʻalulu maikaʻi a me ka cushioning.

Heat insulation: ka wela wela, ka wela wela, ka antifreeze, ka wela haʻahaʻa haʻahaʻa, ka hana maikaʻi loa, ke kū anuanu a me ka pale ʻana i ka lā.

Heat insulation: i pani ʻia nā puka pulupulu, ke kani ʻana a me ka hopena hoʻohaʻahaʻa leo maikaʻi loa.

ʻO nā ʻōhū a me EVA.

ʻOkoʻa: PVA sponge: Acrylic emulsion ka condensation reaction o ka acrylic emulsion a me ka formaldehyde content, he waiu keʻokeʻo a māmā melemele amorphous paʻa.

ʻOi aku ka kiʻekiʻe o ka helu hoʻoheheʻe ma mua o ka homologous acetal (140 ~ 150 ℃), ke kiʻekiʻe o ka ikaika compressive, stiffness a me ka ikaika, a ʻoi aku ka maikaʻi o ka hana paʻa;maikaʻi ia i ka pale ʻana i ka ʻaʻahu a me ka insulation mea uila;maikaʻi wai a me ka corrosion kū'ē, maikaʻi alkali kū'ē.

Hiki ke ahi, uahi ʻeleʻele mai ka paipu hoʻopau.

Heʻe a kulu, me ka ʻala kūikawā.

ʻO ka pulupulu pulupulu: kiʻekiʻe pili pili, ʻoi aku ka ikaika o ka wai, ʻoi aku ka paʻakikī o ka pulupulu pulupulu, maikaʻi ka ductility, maikaʻi ke pale ʻana i ka ʻaʻahu, ʻaʻole maʻalahi i ka ʻōpala, ʻaʻole maʻalahi i ka holoi ʻana, ʻaʻole maʻalahi i ka desquamate.

Ma hope o ke komo ʻana o nā ʻāpana a me ka wai i loko o ka lua, ʻaʻole maʻalahi ka hāʻule ʻana a i ʻole ke kaomi ʻana ma ka makemake, a he hiki ke pani.

ʻO ka pulupulu pulupulu he mea porous elastomer, i hana ʻia me ke kāpili resin phenolic kūikawā me ka noʻonoʻo ʻana i ke keʻa.

Loaʻa iā ia ka lawe ʻana i ka wai i loko o ka mole.

ʻOkoʻa mai ka urethane sponge maʻamau, ʻo ka polyvinyl chloride foam he kiʻekiʻe ka wai o ka wai, a ʻo ke ʻano capillary ke kumu o nā pores meandering, e hāʻawi ana i ka pāʻani piha i ka hoʻoheheʻe maikaʻi ʻana i ka wai a me nā waiwai paʻa wai.