He aha ka Aramid Fiber a me kona pono?

1. Nā waiwai mechanical maikaʻi
ʻO Interposition aramid he polymer maʻalahi, ka haki ʻana i ka ikaika ma mua o ka polyester maʻamau, pulupulu, nylon, a me nā mea ʻē aʻe, ʻoi aku ka nui o ka elongation, palupalu i ka hoʻopā ʻana, spinnability maikaʻi, hiki ke hana ʻia i loko o nā slenderness ʻokoʻa, ka lōʻihi o nā fibers pōkole a me nā filament, ma ka textile maʻamau nā mīkini i hanaʻia i nā helu wili likeʻole i ulanaʻia i loko o nā lole, nā lole i ulanaʻoleʻia, ma hope o ka pauʻana, e hoʻokō i nā koi o nā wahi likeʻole o ka lole pale.

2. ʻO ka lapalapa ahi maikaʻi loa a me ka pale wela
He 28 ka helu helu oxygen palena (LOI) o m-aramid, no laila, ʻaʻole e hoʻomau i ke ahi ke haʻalele ʻo ia i ka lapalapa. Hoʻoholo ʻia nā waiwai pale ahi o ka m-aramid e kona ʻano kemika ponoʻī, e hoʻolilo iā ia i fiber pale ahi mau ʻaʻole e hoʻohaʻahaʻa a nalowale i kāna mau mea pale ahi me ka manawa a i ʻole ka holoi ʻana. Hiki ke hoʻohana mau ʻia ka m-aramid ma 205°C a mālama i ka ikaika kiʻekiʻe ma nā mahana i ʻoi aku ma mua o 205°C. He kiʻekiʻe ka wela decomposition o ka m-aramid a ʻaʻole heheʻe a kulu paha i nā wela kiʻekiʻe, akā hoʻomaka wale i ka char ma nā mahana ʻoi aku ma mua o 370°C.

3. Nā waiwai kemika paʻa
Ma waho aʻe o nā waikawa ikaika a me nā kumu, ʻaʻole i hoʻopilikia ʻia ka aramid e nā mea hoʻoheheʻe a me nā aila. ʻO ka ikaika pulu o ka aramid ua aneane like me ka ikaika maloʻo. ʻOi aku ka maikaʻi o ka paʻa ʻana o ka mahu wai maʻemaʻe ma mua o ko nā fiber organik ʻē aʻe.
He maʻalahi ka Aramid i ke kukui UV. Inā lōʻihi ka lōʻihi o ka ʻike ʻana i ka lā, nalowale ka ikaika a no laila pono e pale ʻia me kahi papa pale. Pono kēia ʻāpana pale e pale i ka pōʻino o ka iwi aramid mai ke kukui UV.

4. Ke pale ʻana i ka radiation
ʻOi aku ka maikaʻi o ka pale radiation o interposition aramids. No ka laʻana, ma lalo o 1.72x108rad/s o r-radiation, mau ka ikaika.

5. Ka lōʻihi
Ma hope o ka holoi ʻana he 100, hiki ke piʻi ka ikaika o ka waimaka o nā lole m-aramid ma mua o 85% o ko lākou ikaika mua. ʻOi aku ka kiʻekiʻe o ke kūpaʻa mahana o nā para-aramids ma mua o nā inter-aramids, me ka hoʻohana mau ʻana i ka pae wela o -196°C a 204°C a ʻaʻohe decomposition a heheʻe paha ma 560°C. ʻO ka hiʻohiʻona koʻikoʻi o ka para-aramid kona ikaika kiʻekiʻe a me ka modulus kiʻekiʻe, ʻoi aku kona ikaika ma mua o 25g / dan, ʻo ia ka 5 ~ 6 mau manawa o ke kila kila kiʻekiʻe, 3 mau manawa o ke aniani aniani a me 2 mau manawa o ke kiʻekiʻe kiʻekiʻe nylon wili ʻoihana. ; ʻO kona modulus he 2 ~ 3 manawa o ke kila kila kiʻekiʻe a i ʻole ke aniani aniani a me 10 mau manawa o ka ikaika kiʻekiʻe nylon ʻenehana. ʻO ke ʻano kū hoʻokahi o ka pulp aramid, i loaʻa i ka fibrillation surface o nā fibre aramid, hoʻomaikaʻi maikaʻi i ka paʻa ʻana o ka pūhui a no laila kūpono ia e like me ka fiber reinforcing no ka friction a me nā huahana sealing. ʻO Aramid Pulp Hexagonal Special Fiber I Aramid 1414 Pulp, māmā melemele flocculent, hoʻonui, me ka nui o nā plumes, ikaika kiʻekiʻe, kūpaʻa maikaʻi, ʻaʻole brittle, pale wela kiʻekiʻe, pale i ka corrosion, paʻakikī, haʻahaʻa haʻahaʻa, kūpaʻa abrasion maikaʻi, ākea ākea. , ka pilina maikaʻi me nā mea'ē aʻe, kahi mea hoʻoikaika i ka hoʻihoʻiʻana o ka wai o 8%, ka lōʻihi o 2-2.5mm a me ka ili o 8m2 / g. Hoʻohana ʻia ia e like me ka gasket reinforcement material me ka maikaʻi resilience a me ka hoʻopaʻa ʻana i ka hana, ʻaʻole ia he mea pōʻino i ke olakino kanaka a me ke kaiapuni, a hiki ke hoʻohana ʻia no ka hoʻopaʻa ʻana i ka wai, ka aila, ka ikaika ʻē a me ka ikaika waena a me ka media alkali. Ua hōʻike ʻia ua like ka ikaika o ka huahana me 50-60% o nā huahana asbestos fiber i hoʻoikaika ʻia ke hoʻohui ʻia ma lalo o 10% o ka slurry. Hoʻohana ʻia ia e hoʻoikaika i ka friction a me ka hoʻopaʻa ʻana i nā mea a me nā huahana hana ʻē aʻe, a hiki ke hoʻohana ʻia ma ke ʻano he ʻokoʻa i ka asbestos no ka friction sealing material, kiʻekiʻe ka hana wela wela a me nā mea hoʻohui i hoʻoikaika ʻia.