UHMWPE me Aramid: Ko tēhea muka mahi-teitei e hiahiatia ana e koe?

I te ao o ngā rauemi matatau, e rua ngā ingoa e kōrerohia ana ina hiahiatia te kaha, te manawanui, me te tiaki:Polyethylene Taumaha Ngota Tino-Teitei (UHMWPE)meAramid (e mōhiotia ana i ngā ingoa waitohu pēnei i a Kevlar®, Twaron® rānei)He mahi whakamiharo ngā mahi hangarau e rua, engari kāore e taea te whakawhiti. Mā te whiriwhiri i te mea hē mō tō tono ka raru wawe pea, ka puta rānei he utu koretake.

At Huidun UHMWPE, he tohunga mātou ki te pana i ngā rohe o te hangarau muka polyethylene. Heoi, e whakapono ana mātou ki te whakarato ki ō mātou kiritaki he tirohanga mārama ki te āhua o te whakarārangi o ēnei rauemi. I roto i tēnei aratohu, ka ruku hohonu mātou ki ngā āhuatanga hangarau, ngā painga, me ngā herenga o ngā muka e rua hei āwhina i a koe ki te whakatau hoko whai whakaaro.

Hei mārama ki tā rātou mahi, me titiro tātou ki tō rātou DNA ngota. Ko te UHMWPE he polyolefin i hangaia mai i ngā mekameka polyethylene tino roa. Ka tūhono ēnei mekameka ki te ahunga kotahi, ka hangaia he rauemi e whakanuia ai ngā kaha i waenga i ngā ngota, ka hua ake he muka tino kaha engari he mama hei mānu i runga i te wai.

Ko te Aramid ia, he polyamide kakara hangai. Kei roto i tōna hanganga ngota ngā mowhiti pakari e honoa ana e ngā here hauwai kaha. Nā tēnei ka tino ātete te Aramid ki te wera me ngā matū, engari he nui ake te mātotoru i tōna hoa polyethylene.

Mena e hiahiatia ana e tō kaupapa te kaha teitei rawa atu me te papatipu iti rawa,Ko UHMWPE te toa māramaE kiia whānuitia ana ko te muka tino kaha o te ao i runga i te taumaha-mō-te-taumaha—tata ki te 15 ngā wā e kaha ake ana i te maitai, ā, he tino kaha ake i ngā muka Aramid.

Nā te mea he iti iho i te 1.0 karamu/cm³ te matotoru o te UHMWPE, ka mānu. Nā tēnei ka waiho hei paerewa koura mō ngā mahi moana, pērā i ngā taura here moana hohonu me ngā taura tō. Ahakoa he kaha te aramid, he 40% te taumaha ake, ā, ka totohu ki te wai. Mō ngā ahumahi pērā i te rererangi, i ngā pukupuku whaiaro rānei, he mea nui ia karamu, ko te penapena taumaha e tukuna ana e ngā muka UHMWPE mai i Huidun ka taea te huri i te kēmu.

Ko te mea nui o te UHMWPE ko tōna aro ki te wera. He kirihou wera te UHMWPE, ka tīmata te whakangawari i waenganui i te 80°C ki te 100°C, ā, ka rewa i waenganui i te 144°C ki te 152°C. Nā tēnei ka whakawhāitihia tōna whakamahinga i ngā taiao e mau tonu ana te pānga ki te pāmahana teitei, pērā i ngā taputapu tinei ahi, ngā whitiki ahumahi waku-teitei rānei.

Ko Aramid te kingi tino kaha o te ātete wera. Kāore e rewa; engari, ka warohia i ngā pāmahana neke atu i te 400°C. Mena kei roto i tō tono he mura tika, he waku wera nui, he taiao wera nui rānei, ko Aramid pea te whiringa pai ake. Heoi, mō te nuinga o ngā whakamahinga o waho, rautaki, me te ahumahi e noho tonu ana te pāmahana i roto i te awhe paerewa, ka pai tonu te mahi a te UHMWPE.

I ngā āhuatanga o te ao tūturu, he maha ngā āhuatanga taiao e whakatau ana i te roa o te oranga o tētahi rauemi. Koinei te wāhi eHe tino pai te UHMWPEnui atu i te Aramid:

Mō te tiakitanga poitūkohu me ngā taputapu ātete-tapa, e whakamahia whānuitia ana ngā rauemi e rua, engari he rerekē te "ahua" me te mahi a rāua. He iti rawa te tauwehenga waku o te UHMWPE, ā, he "pahekeheke" tōna ahua. Nā tēnei ka tino whai hua ki te reti ki ngā mata whakakoi, ka hua ake he ātete kakahu pai ake i roto i ngā taura me ngā ringaringa ahumahi.

I roto i ngā mahi patu pōro (pērā i ngā koti ārai-matā), he pai ake te UHMWPE nā tōna kaha ki te hora tere i te pūngao puta noa i te whatunga muka, e whakarato ana i te tiaki pai rawa atu i ngā kongakonga tere-tere, ā, he mama ake hoki mō te kaimau. E whai hua tonu ana te aramid mō tōna pakari me tōna ātete ki te poka, engari kei te neke te ia o te umanga ki ngā hiato UHMWPE mō ngā taputapu rautaki hou, māmā.