He aha nā mea e pili ana i ka mae ʻana oNā huahana EVA? Manaʻo wau ua hopohopo nui ka poʻe e pili ana i nā pilikia me nā huahana EVA. ʻOiaʻiʻo, ʻike ʻia ʻo EVA i ke ola home ma ke ʻano he kumu kumu i kēia manawa. Hoʻohana pinepine ia e like me ke kani ʻana o ke kani, nā mea papahele, nā mea cushioning, a me nā mea ʻē aʻe i nā papahana hoʻonaninani. He nui nā pono o ka mea EVA e like me ke kāpeti, e like me ke kūpaʻa maikaʻi o ke olai, ka wai ʻole, ka anti-electric, a me nā mea ʻē aʻe.
Nā mea e pili ana i ka mae ʻana o nā huahana plastik EVA. ʻO ka mae ʻana o nā huahana ʻulaʻula e pili ana i ke kūpaʻa māmā, ka pale ʻana o ka oxygen, ke kūpaʻa wela, ka waikawa a me ka pale alkali o nā puaʻa a me nā kala, a me nā ʻano o ka resin i hoʻohana ʻia. Wahi a nā kūlana hana a me ka hoʻohana ʻana i nā huahana plastic, pono e loiloi piha ʻia nā waiwai i ʻōlelo ʻia ma luna o nā puaʻa e pono ai, nā dyes, surfactants, dispersants, carrier resins a me nā anti-aging additives i ka wā e hana ai i nā masterbatches ma mua o ke koho ʻia.
ʻEhā kumu nui o ka mae ʻana o nā huahana EVA:
1. Acid and alkali resistance ʻO ka mae ʻana o nā huahana plastik kala e pili ana i ke kūʻē kemika o ka mea kala (ka waikawa a me ka alkali pale, oxidation a me ka hoʻohaʻahaʻa kū'ē)
No ka laʻana, ʻaʻole kūpaʻa ka molybdenum chrome ʻulaʻula i ka dilute acid, akā paʻakikī i ka alkali, a ʻaʻole kūpaʻa ka cadmium melemele. ʻO kēia mau puaʻa ʻelua a me ka resin phenolic he hopena hoʻohaʻahaʻa ikaika i kekahi mau kala, e hoʻopilikia koʻikoʻi i ka pale ʻana i ka wela a me ke kū ʻana o ka wā o ka kala a hoʻomaka i ka mae.
2. Nā waiwai Antioxidant E mae mālie kekahi mau puaʻa olaola ma hope o ka hoʻokahe ʻia ʻana ma muli o ka degradation macromolecular a i ʻole nā hoʻololi ʻē aʻe.
ʻO kēia kaʻina hana he oxidation wela kiʻekiʻe i ka wā o ka hana ʻana a me ka oxidation i ka wā e hālāwai ai me nā oxidants ikaika (e like me ka chromate i ka chrome melemele). Ma hope o ka hoʻohui ʻia ʻana o ka loko waihoʻoluʻu, hoʻohui ʻia ka puaʻa azo a me ka melemele chrome, e mae mālie ke kala ʻulaʻula.
3. ʻO ke kūpaʻa wela o nā puaʻa pale wela e pili ana i ke kiʻekiʻe o ke kaumaha o ka wela, ka wehe ʻana a me ka mae ʻana o ka puaʻa i ka mahana hana.
Hoʻokumu ʻia nā puaʻa inorganic me nā oxide metala a me nā paʻakai, me ke kūpaʻa wela maikaʻi a me ke kūpaʻa wela kiʻekiʻe. Eia nō naʻe, e hoʻololi ʻia nā puaʻa o nā pūhui organik i ka hoʻololi ʻana i ka hoʻolālā molekala a me kahi liʻiliʻi o ka decomposition i kekahi mahana. No nā huahana PP, PA, a me PET, ʻoi aku ka mahana o ka hana ma luna o 280 ℃. Ke koho ʻana i nā kala, ma kekahi ʻaoʻao, pono mākou e hoʻolohe i ka pale wela o ka puaʻa, a ma ka ʻaoʻao ʻē aʻe, pono mākou e noʻonoʻo i ka manawa pale wela o ka puaʻa, ka mea maʻamau e koi ʻia he 4-10 ua.
4. ʻO ka pale māmā ʻO ke kūpaʻa māmā o ka mea kala e pili pono i ka mae o ka huahana
No nā huahana o waho i ʻike ʻia i ka mālamalama ikaika, ʻo ke kūpaʻa māmā (ka pale ʻana o ka lā) i koi ʻia o ka kala i hoʻohana ʻia he mea hōʻailona koʻikoʻi. Inā he haʻahaʻa ka pae pale māmā, e mae koke ka huahana i ka wā e hoʻohana ai. ʻAʻole pono e emi ka pae pale māmā i koho ʻia no nā huahana kūʻē i ka wā ma mua o ka pae 6, ʻoi aku ka pae 7 a i ʻole 8, a me ka pae 4 a i ʻole 5 no nā huahana o loko. ʻO ke kūpaʻa māmā o ka resin carrier he mea nui hoʻi i ka loli kala. Ma hope o ka hoʻomālamalama ʻia ʻana o ka resin e nā kukuna ultraviolet, hoʻololi a mae kona ʻano molekala. Hiki i ka hoʻohui ʻana i nā stabilizer māmā e like me nā ultraviolet absorbers i ka masterbatch hiki ke hoʻomaikaʻi i ke kūpaʻa māmā o ka mea kala a me nā huahana plastik kala.
Hōʻike ʻia nā kumu nui ʻehā no ka pau ʻana o nā huahana plastik EVA. ʻO ka nānā ʻana i nā mea i luna e hiki ke pale i nā mea ʻino e like me ka mae ʻana o nā huahana EVA; ma muli o nā pono o nā mea EVA, ua hoʻohana nui ʻia i kēia manawa i ke ola o kēlā me kēia lā.
Ka manawa hoʻouna: Sep-26-2024