ʻO ka hoʻohana ʻana i ka lole fiber aramid i nā huahana pale

Aramida fiberhe fiber synthetic hana kiʻekiʻe, me ka ikaika ultra-kiʻekiʻe, modulus kiʻekiʻe, ke kūpaʻa wela kiʻekiʻe, ka waikawa a me ke kūpaʻa alkali, ka māmā, a me nā ʻano maikaʻi ʻē aʻe. Hiki i kona ikaika ke piʻi i ka 5-6 manawa o ka uea kila, ʻo ka modulus he 2-3 mau manawa o ka uea kila a i ʻole ke aniani aniani, ʻo ka paʻakikī he 2 mau manawa o ka uea kila, a ʻo ke kaumaha he 1/5 wale nō ka uea kila. Ma kahi wela kiʻekiʻe o 560 ℃, hiki i nā fila aramid ke kūpaʻa, ʻaʻole decompose, ʻaʻole hoʻoheheʻe. Eia kekahi, loaʻa iā ia ka insulation maikaʻi a me nā waiwai anti-kahiko, a me ke ola lawelawe lōʻihi. I kēia manawa, hoʻohana maʻamau nā mea hana pale pōkā (e like me nā lole pale pale, a me nā mahiole pale)nā lole fiber aramid. I waena o lākou, ʻo ka lole maʻemaʻe aramid fiber haʻahaʻa kekahi o nā mea nui i ke kahua o ka pale pale. Ke hoʻohālikelike ʻia me nā pālule nylon kahiko a me nā mahiole kila, ʻaʻole ʻoi aku ka liʻiliʻi a me ka māmā o nā pālule pōkā a me nā mahiole me nā fila aramid i hoʻohui ʻia akā ʻoi aku ka maikaʻi o 40% e kūʻē i nā pōkā.

Hiki ke hoʻomaopopo ʻia ke kumu hana o nā ʻaʻahu pale pōkā ma kēia ʻano: i ka wā e pā ai ka pōkā i ka papa lole o ka ʻaʻahu, e hoʻoulu ʻia nā haʻalulu a me nā hawewe ma kahi o ka hopena. ʻO kēia mau nalu ma o ka hoʻolaha wikiwiki ʻana a me ka hoʻolaha ʻana o ka fiber, hiki ke hoʻokuʻu i ka nui o nā fibers, a laila ma kahi ākea ākea e hoʻomoʻa i ka ikehu o ka nalu haʻalulu. ʻO kēia ka nui o ka ikehu absorption e hoʻemi pono i ka hopena o nā pōkā ma ke kino o ke kanaka, no laila e ʻike ai i ka hopena pale o nā pale pale.

Mea pale pōkā a me kāna hana maikaʻi loa

Aia ke kumu o nā lole pale pale i loko o nā mea fiber ikaika kiʻekiʻe a lākou e hoʻohana ai, ʻo ia ka para-aramid fibers, i ʻike ʻia hoʻi he para-aromatic polyamide fibers, he mea mahalo nui ʻia. Hāʻawi kona ʻano kemika symmetrical nui i ke kaulahao molecular i ka rigidity maikaʻi loa, e ʻokoʻa loa ia mai nā polymers kaulahao maʻamau maʻamau e pili ana i ka solubility, nā waiwai rheological, a me ka hana ʻana.

ʻIke ʻia nā fibers Para-aramid no ko lākou ʻano kino maikaʻi a me nā ʻano mechanical, me ka ikaika ultra-kiʻekiʻe, modulus kiʻekiʻe, a me ka māmā. ʻO ko lākou ikaika kikoʻī he ʻelima a ʻeono manawa kiʻekiʻe ma mua o ko ka uea kila maʻamau, a ʻoi aku ko lākou modulus kikoʻī ma mua o ko ka uea kila ma ka helu ʻelua a ʻekolu. Eia kekahi, hōʻike nā fibers i nā mea wela maikaʻi loa, me ke kūpaʻa kiʻekiʻe, ka hoʻonui haʻahaʻa, a me ka conductivity thermal haʻahaʻa, ʻaʻole e wela a hoʻoheheʻe ʻia. Ua kapa ʻia ʻo Para-aramid fibers he "bulletproof fibers" ma muli o ko lākou ʻoluʻolu maikaʻi, pale ʻana i ka corrosion, a me ke kūpaʻa ʻelemakule.

Nā noi a me nā manaʻo o Para-Aramida Fiber

ʻO ka fiber para-aramid, kahi mea nui i ka ʻoihana pale a me ka ʻoihana koa, hoʻohana nui ʻia ma ka honua holoʻokoʻa. Wahi a nā helu helu, ʻoi aku ka nui o ka aramid i nā fibers pale i ka US ma mua o 50% a me 10% ma Iapana. ʻO kāna mau hiʻohiʻona māmā e hana i nā ʻaʻahu pale pōkā aramid a me nā mahiole, hiki ke hoʻomaikaʻi nui i ka hiki ke pane wikiwiki o ka pūʻali. Eia kekahi, hoʻohana nui ʻia ka para-aramid i ka automotive, telecommunications, aerospace, a me nā haʻuki waho ma muli o kāna hana maikaʻi loa.