ʻO ka mea nui i nā masks pale maʻi maʻi - polypropylene

ʻO ka mea nui o nā maskspolypropylene lole ʻaʻole i ulana ʻia(ʻike pū ʻia ʻo ka lole ʻaʻole i ulana ʻia), ʻo ia ka mea lahilahi a i ʻole like me ka huahana i hana ʻia mai nā fiber textile ma o ka hoʻopaʻa ʻana, ka hui ʻana, a i ʻole nā ​​ʻano kemika a me nā ʻano hana ʻē aʻe. Hana ʻia nā masks lāʻau lapaʻau i ʻekolu ʻāpana o ka lole ʻaʻole i ulana ʻia, ʻo ia ka spunbond non-woven fabric S, meltblown non-woven fabric M, a me ka spunbond non-woven fabric S, i kapa ʻia ʻo SMS structure; Hana ʻia ka ʻaoʻao o loko i ka lole maʻamau i ulana ʻole ʻia, nona ka ʻili maikaʻi a me ka hoʻoheheʻe ʻana i ka wai; ʻO ka papa waho i hana ʻia me ka lole ʻaʻole i ulana ʻia, nona ka hana o ka pale ʻana i nā wai a hoʻohana nui ʻia e pale i nā wai i hoʻoheheʻe ʻia e ka mea lawe a i ʻole nā ​​​​mea ʻē aʻe; ʻO ka papa kānana waena ka mea maʻamau i hana ʻia me ka polypropylene melt blown non-woven fabric i electrostatically polarized, hiki ke kānana i ka bacteria a pāʻani i ka hana hoʻoholo i ka pale ʻana a me ka kānana.

ʻO ka laina hana mask automated e hoʻomaikaʻi nui i ka hana pono o nā masks. ʻOki ʻia nā ʻōwili nui o ka polypropylene non-woven fabric i loko o nā ʻōwili liʻiliʻi a kau ʻia ma ka laina hana mask. Hoʻonohonoho ka mīkini i kahi kihi liʻiliʻi a hōʻemi mālie a hōʻiliʻili iā lākou mai ka hema a i ka ʻākau. Hoʻopili ʻia ka ʻili o ka mask me ka papa, a ua hana ʻia nā hana e like me ke ʻoki ʻana, ka hoʻopaʻa ʻana i ka lihi, a me ke kaomi ʻana. Ma lalo o ka hana ʻana o nā mīkini automated, pono ia ma kahi o 0.5 kekona wale nō no kahi laina hui hale hana e hana i kahi mask. Ma hope o ka hana ʻana, hoʻopau ʻia nā masks me ka ethylene oxide a waiho ʻia e noho no 7 mau lā ma mua o ka hoʻopaʻa ʻia ʻana, hoʻopaʻa ʻia, pahu pahu, a hoʻouna ʻia no ke kūʻai aku.

ʻO ke kumu kumu o nā masks - polypropylene fiber

ʻO ka papa kānana (M layer) i waenakonu o nā masks lapaʻau he lole kānana hoʻoheheʻe ʻia, ʻo ia ka papa kumu nui loa, a ʻo ka mea nui he polypropylene melt blown mea kūikawā. Loaʻa i kēia mea nā hiʻohiʻona o ke kahe ultra-kiʻekiʻe, haʻahaʻa haʻahaʻa, a me ka hāʻawi ʻana i ke kaumaha molecular haiki. ʻO ka papa kānana i hana ʻia he kānana ikaika, pale, insulation, a me nā waiwai absorption ʻaila, hiki ke hoʻokō i nā kūlana like ʻole no ka helu o nā fibers ma kēlā me kēia ʻāpana a me ka ʻili o ka papa kumu o nā masks olakino. Hiki i hoʻokahi tona o ka mea hoʻoheheʻe kiʻekiʻe polypropylene fiber hiki ke hana ma kahi o 250000 polypropylene N95 mau maka pale lapaʻau, a i ʻole 900000 a i 1 miliona mau maka hoʻokuʻu ʻia.

ʻO ke ʻano o ka polypropylene melt blown filter material i haku ʻia me nā fibers crossing crossing i hoʻopaʻa ʻia i nā kuhikuhi ākea, me ka awelika fiber anawaena o 1.5~3 μm, ma kahi o 1/30 o ke anawaena o ka lauoho kanaka. ʻO ka mīkini kānana o nā mea kānana polypropylene melt blown filter ka mea nui i ʻelua mau ʻano: mechanical barrier a me electrostatic adsorption. Ma muli o ka ultrafine fibers, nui kikoʻī kikoʻī kikoʻī, kiʻekiʻe porosity, a me ka liʻiliʻi awelika pore nui, polypropylene hehee puhi ana i nā mea kānana he maikaʻi ka pale bacteria a me nā hopena kānana. ʻO ka polypropylene melt blown filter material ka hana o ka electrostatic adsorption ma hope o ka mālama electrostatic.

He liʻiliʻi loa ka nui o ka coronavirus novel, ma kahi o 100 nm (0.1 μm), akā ʻaʻole hiki ke kū kaʻawale ka maʻi. Loaʻa ka nui i loko o nā huna huna a me nā droplets i ka wā e ʻoki ai, a ʻo ka nui o nā droplets ma kahi o 5 μm. Ke hoʻokokoke ka maʻi i loko o nā kulu i ka lole hoʻoheheʻe ʻia, e hoʻopili ʻia lākou i ka electrostatically ma ka ʻili, e pale ana iā lākou mai ke komo ʻana i ka papa waena paʻa a loaʻa kahi hopena pale. Ma muli o ka paʻakikī loa o ka hoʻomaʻemaʻe ʻana ma hope o ka hopu ʻia ʻana e nā fibers electrostatic ultrafine, a hiki i ka holoi ʻana ke hōʻino i ka hiki ke hoʻoheheʻe electrostatic, hiki ke hoʻohana ʻia kēia ʻano mask i hoʻokahi wale nō.

Ka hoomaopopo ana i ka Polypropylene Fiber

ʻO ka polypropylene fiber, i kapa ʻia ʻo PP fiber, i kapa ʻia ʻo polypropylene ma Kina. ʻO ka fiber polypropylene kahi fiber i hana ʻia e ka polymerizing propylene ma ke ʻano he mea maka e synthesize polypropylene, a laila e hana ana i nā kaʻina hana wili. ʻO nā ʻano nui o ka polypropylene ka polypropylene filament, polypropylene short fiber, polypropylene split fiber, polypropylene expanded filament (BCF), polypropylene industrial yarn, polypropylene non-woven fabric, polypropylene cigarette tow, etc.

Hoʻohana nui ʻia ka polypropylene fiber no nā moena (kāpena kumu a me ka suede), nā lole hoʻonaninani, nā lole lako, nā ʻāpana kaula like ʻole, nā ʻupena lawaiʻa, ka ʻaila e hoʻomoʻi ai i ka manaʻo, nā mea hoʻoikaika kūkulu hale, nā mea hoʻopili, a me nā lole ʻoihana e like me ka lole kānana, ka lole ʻeke, a me nā mea ʻē aʻe. Hiki ke hoʻohana ʻia nā fibers polypropylene ultrafine e hana i nā lole lole kiʻekiʻe; ʻO ka quilt i hana ʻia me ka polypropylene hollow fibers he māmā, mahana, a he elasticity maikaʻi.

Ka Hoʻomohala ʻana o ka Polypropylene Fiber

ʻO ka polypropylene fiber kahi ʻano fiber i hoʻomaka i ka hana ʻenehana i nā makahiki 1960. I ka makahiki 1957, ʻo Natta et al. hoʻomohala mua i ka polypropylene isotactic a hoʻokō i ka hana ʻoihana. Ma hope koke iho, ua hoʻohana ka hui ʻo Montecatini no ka hana ʻana i nā fibers polypropylene. I ka makahiki 1958-1960, ua hoʻohana ka hui i ka polypropylene no ka hana fiber a kapa ʻia ʻo ia ʻo Meraklon. Ma hope mai, hoʻomaka ka hana ʻana ma ʻAmelika Hui Pū ʻIa a me Kanada. Ma hope o ka makahiki 1964, ua hoʻomohala ʻia nā fibrillation kiʻiʻoniʻoni polypropylene no ka hoʻopili ʻana a hana ʻia i mau lole lole a me nā wili kāpeti ma o ka fibrillation kiʻiʻoniʻoni lahilahi.
I nā makahiki 1970, ua hoʻomaikaʻi ke kaʻina wili pōkole a me nā mea hana i ka hana hana o nā fiber polypropylene. I ka manawa like, hoʻomaka ka hoʻohana ʻana i ka filament hoʻomau i hoʻonui ʻia i ka ʻoihana kapena, a ua ulu wikiwiki ka hana ʻana o ka fiber polypropylene. Ma hope o 1980, ʻo ka hoʻomohala ʻana o ka polypropylene a me nā ʻenehana hou no ka hana ʻana i nā fibers polypropylene, ʻoi aku ka maikaʻi o ka hana ʻana o nā catalysts metallocene, i hoʻomaikaʻi nui i ka maikaʻi o ka resin polypropylene. Ma muli o ka hoʻomaikaʻi ʻana o kāna stereoregularity (isotropy a hiki i 99.5%), ua hoʻonui nui ʻia ka maikaʻi intrinsic o nā fiber polypropylene.
I ka waena o ka makahiki 1980, ua pani ka polypropylene ultra-fine fibers i kekahi mau pulupulu pulupulu no nā lole lole a me nā lole i ulana ʻole ʻia. I kēia manawa, ʻoi aku ka ikaika o ka noiʻi a me ka hoʻomohala ʻana i nā fiber polypropylene i nā ʻāina like ʻole a puni ka honua. ʻO ka hoʻolaha ʻana a me ka hoʻomaikaʻi ʻana o ka ʻenehana hana fiber differentiated ua hoʻonui nui i nā kahua noi o nā fiber polypropylene.

ʻO ke ʻano o nā fiber polypropylene

ʻO ka polypropylene kahi mole nui me nā ʻātoma kalapona ma ke kaulahao nui. Ma muli o ka hoʻonohonoho kiko o kona mau pūʻulu methyl, aia ʻekolu ʻano o nā ʻano hana ʻekolu: random, iso regular, a me meta regular. Aia nā ʻātoma kalapona ma ke kaulahao nui o nā molekele polypropylene i ka mokulele hoʻokahi, a hiki ke hoʻonohonoho ʻia ko lākou ʻaoʻao methyl pūʻulu ma nā hoʻonohonoho spatial like ʻole ma luna a ma lalo o ka mokulele kaulahao nui.
Hoʻohana ka hana ʻana i nā fibers polypropylene isotactic polypropylene me kahi isotropy ʻoi aku ka nui ma mua o 95%, nona ka crystallinity kiʻekiʻe. ʻO kona ʻano he kaulahao spiral maʻamau me ka maʻamau ʻekolu-dimensional. Aia ke kaulahao nui o ka mole me nā kaulahao wiliwili kalapona ma ka mokulele hoʻokahi, a aia nā pūʻulu methyl ʻaoʻao ma ka ʻaoʻao hoʻokahi o ka mokulele kaulahao nui. ʻO kēia crystallization ʻaʻole ia he hana maʻamau o nā kaulahao pākahi, akā loaʻa pū kekahi i ke kaulahao maʻamau i ka ʻaoʻao kihi ʻākau o ke axis kaulahao. ʻO ka crystallinity o nā fiber polypropylene mua he 33% ~ 40%. Ma hope o ke kau ʻana, piʻi ka crystallinity i 37% ~ 48%. Ma hope o ka mālama ʻana i ka wela, hiki i ka crystallinity ke hiki i 65% ~ 75%.

Hana ʻia nā fiber polypropylene me ke ʻano wili hoʻoheheʻe. Ma keʻano holoʻokoʻa, ʻoluʻolu a pololei nā fibers i ka ʻaoʻao longitudinal, me ka ʻole o nā kaha, a he ʻāpana keʻa pōʻai. Ua wili pū ʻia lākou i loko o nā pulupulu like ʻole a me nā fiber composite.

Nā hiʻohiʻona hana o nā fiber polypropylene

Kino

ʻO ka hiʻohiʻona nui o ka polypropylene kona ʻano māmā, me ka nui o 0.91g/cm ³, ʻoi aku ka māmā ma mua o ka wai a ʻo 60% wale nō o ke kaumaha o ka pulupulu. ʻO ia ka māmā māmā loa ma waena o nā fiber kemika maʻamau, 20% ʻoi aku ka māmā ma mua o ka nylon, 30% māmā ma mua o ka polyester, a me 40% māmā ma mua o ka fiber viscose. He kūpono ia no ka hana ʻana i nā lole haʻuki wai.

Nā waiwai kino

He ikaika kiʻekiʻe ka Polypropylene a me ka elongation fracture o 20% -80%. Ke emi nei ka ikaika me ka piʻi ʻana o ka mahana, a ʻo ka polypropylene ka modulus mua kiʻekiʻe. ʻO kona hiki ke hoʻihoʻi elastic e like me ka nylon 66 a me ka polyester, a ʻoi aku ka maikaʻi ma mua o ka acrylic. ʻOi aku ka nui, ʻoi aku ka nui o kona hiki ke hoʻihoʻi elastic, no laila ʻoi aku ka pale ʻana o ka lole polypropylene. ʻAʻole hiki ke wrinkling ka lole polypropylene, no laila ua lōʻihi, paʻa ka nui o nā lole, ʻaʻole maʻalahi ka deformed.

ʻO ka hoʻoheheʻe ʻana i ka wai a me ka hana kala

Ma waena o nā fiber synthetic, ʻoi aku ka maikaʻi o ka polypropylene i ka hoʻoheheʻe ʻana i ka wai, me ka ʻaneʻane ʻaʻole loaʻa hou ka wai ma lalo o nā kūlana lewa maʻamau. No laila, ʻaneʻane like kona ikaika maloʻo a pulu a me kona ikaika haʻihaʻi, kūpono loa ia no ka hana ʻana i nā ʻupena lawaiʻa, nā kaula, ka lole kānana, a me ka gauze disinfectant no ka lāʻau lapaʻau. Pili ka Polypropylene i ka uila static a me ka pilling i ka wā e hoʻohana ai, me ka haʻahaʻa haʻahaʻa haʻahaʻa. He maʻalahi ka lole e holoi a maloʻo wikiwiki, a he ʻano ʻoʻoleʻa. Ma muli o kona hoʻomoʻa ʻana i ka makū a me ka momona i ka wā e ʻaʻahu ʻia ai, hoʻohui pinepine ʻia ka polypropylene me nā fiber me ka hoʻomoʻa ʻana o ka wai kiʻekiʻe ke hoʻohana ʻia i nā lole lole.
He ʻano macromolecular maʻamau ka Polypropylene a me ka crystallinity kiʻekiʻe, akā ʻaʻohe pūʻulu hana e hiki ke hoʻopaʻa me nā molekala kala, e paʻakikī ai ke kala ʻana. ʻAʻole hiki ke kala maʻamau. ʻO ka hoʻohana ʻana i nā mea pena i hoʻopuehu ʻia i ka polypropylene hiki ke hopena i nā kala māmā loa a me ka wikiwiki o ka waihoʻoluʻu. Hiki ke hoʻokō ʻia ka hoʻomaikaʻi ʻana i ka hana kala ʻana o ka polypropylene ma o nā ʻano e like me ka copolymerization graft, ka waihoʻoluʻu wai maoli, a me ka hoʻololi ʻana i ka hui metala.

Nā waiwai kemika

He kūpaʻa maikaʻi loa ka Polypropylene i nā kemika, nā ʻōpala, a me ka ʻōpala. ʻOi aku ka maikaʻi o kona kūpaʻa kūʻē i ka waika, alkali, a me nā mea kemika ʻē aʻe ma mua o nā fiber synthetic ʻē aʻe. He kūpaʻa maikaʻi ka Polypropylene i ka ʻino kemika, koe wale nō ka waikawa nitric concentrated a me ka soda caustic concentrated. He kūpaʻa maikaʻi kona i ka waikawa a me ka alkali, e kūpono ai no ka hoʻohana ʻana i mea kānana amea paʻi.Eia nō naʻe, ʻilihune iki kona kūpaʻa i nā mea hoʻoheheʻe organik.

Kūleʻa wela

ʻO ka polypropylene kahi fiber thermoplastic me ka helu haʻahaʻa haʻahaʻa a me ka helu heheʻe ma mua o nā fibers ʻē aʻe. He 10-15 ℃ ka wela wela ma mua o ka helu heheʻe, e hopena i ka pale wela maikaʻi ʻole. I ka wā o ke kala, hoʻopau ʻana, a me ka hoʻohana ʻana i ka polypropylene, pono e hoʻolohe i ka mālama ʻana i ka mahana e pale aku i ka deformation plastic. Ke hoʻomehana ʻia i loko o nā kūlana maloʻo (e like me nā mahana ma mua o 130 ℃), e hana ʻia ka polypropylene ma muli o ka oxidation. No laila, hoʻohui pinepine ʻia ka anti-aging agent (heat stabilizer) i ka hana ʻana i ka fiber polypropylene e hoʻomaikaʻi i ka paʻa o ka polypropylene fiber. Akā ʻoi aku ka maikaʻi o ka polypropylene i ka makū a me ka wela. E hoʻolapalapa i ka wai hoʻolapalapa no kekahi mau hola me ka ʻole deformation.

Hana 'ē aʻe

ʻAʻole maikaʻi ka mālamalama a me ka pale ʻana o ka polypropylene, hiki ke ʻelemakule, ʻaʻole kū i ka hao, a pono e mālama ʻia mai ka mālamalama a me ka wela. Eia nō naʻe, hiki ke hoʻomaikaʻi ʻia ka waiwai anti-aging ma o ka hoʻohui ʻana i ka anti-aging agent i ka wā wili. Eia kekahi, ʻoi aku ka maikaʻi o ka polypropylene insulation uila, akā hiki ke hoʻololi i ka uila static i ka wā e hana ai. ʻAʻole maʻalahi ka polypropylene e puhi. Ke emi a hehee ka lau i loko o ka lapalapa, hiki i ka lapalapa ke pio iā ia iho. Ke puhi ʻia, lilo ia i ʻāpana paʻa akaka me kahi ʻala asphalt liʻiliʻi.

Dongguan Liansheng Non ulana 'enehana Co., Ltd.ua hoʻokumu ʻia ma Mei 2020. He ʻoihana hana lole lole ʻaʻole i ulana nui ʻia e hoʻohui i ka noiʻi a me ka hoʻomohala ʻana, ka hana ʻana, a me ke kūʻai aku. Hiki iā ia ke hana i nā kala like ʻole o ka PP spunbond non-woven fabrics me ka laulā o lalo o 3.2 mika mai 9 grams a 300 grams.