Isi ihe nke masks bụpolypropylene na-abụghị kpara akwa(nke a makwaara dị ka akwa anaghị kpara akpa), nke dị gịrịgịrị ma ọ bụ dị ka ngwaahịa sitere na eriri textile site na njikọta, ngwakọta, ma ọ bụ usoro kemịkalụ na usoro ndị ọzọ. A na-ejikarị ihe mkpuchi ịwa ahụ ọgwụ bụ akwa atọ nke na-abụghị nke a kpara akpa, ya bụ spunbond na-abụghị kpara akwa S, meltblown na-abụghị kpara akwa M, na spunbond na-abụghị kpara akwa S, mara dị ka SMS Ọdịdị; N'ime oyi akwa na-mere nke nkịtị na-abụghị kpara ákwà, nke nwere a akpụkpọ enyi na enyi na mmiri absorbing mmetụta; A na-eji akwa akwa na-adịghị ekpuchi mmiri nke dị n'elu, nke nwere ọrụ nke igbochi mmiri mmiri ma na-ejikarị egbochi mmiri mmiri nke onye na-ebu ya ma ọ bụ ndị ọzọ na-efesa; A na-ejikarị akwa polypropylene gbazere agbaze nke na-adịghị kpara akpa, nke nwere ike nyochaa nje bacteria ma rụọ ọrụ dị mkpa n'igbochi na nzacha.
Ahịrị mmepụta ihe mkpuchi na-akpaghị aka na-eme ka nrụpụta nrụpụta nke masks dịkwuo mma. A na-egbutu nnukwu mpịakọta nke polypropylene ákwà na-abụghị nke a kpara akpa n'ime obere mpịakọta ma tinye ya n'ahịrị mmepụta ihe nkpuchi. Igwe ahụ na-edobe obere akụkụ ma jiri nwayọọ nwayọọ na-agbakọta ma na-achịkọta ha site n'aka ekpe gaa n'aka nri. A na-eji mbadamba mbadamba pịpịa elu nkpuchi ahụ, a na-emekwa usoro ndị dị ka ịkpụ, mkpuchi ihu, na ịpị. N'okpuru ọrụ nke igwe akpaaka, ọ na-ewe nkezi nke naanị ihe dịka 0.5 sekọnd maka ahịrị mgbakọ ụlọ ọrụ iji mepụta nkpuchi. Mgbe emechara ya, a na-ekpochapụ ihe mkpuchi ahụ na ethylene oxide wee hapụ ya ka ọ dozie maka ụbọchị 7 tupu etinye ya, chịkọta ya, kechie ya, ma buga ya ere.
Isi ihe nke masks - eriri polypropylene
The nzacha oyi akwa (M oyi akwa) n'etiti ọgwụ masks bụ agbaze fụrụ nza ákwà, nke bụ ihe kasị mkpa isi oyi akwa, na isi ihe bụ polypropylene gbazee fụrụ pụrụ iche ihe onwunwe. Ihe a nwere njiri mara oke nrịba dị elu, mgbanwe dị ala, yana nkesa arọ molekụla dị warara. Igwe nzacha a kpụrụ akpụ nwere nzacha siri ike, ihe mkpuchi, mkpuchi na ihe nnabata mmanụ, nke nwere ike iru ụkpụrụ dị iche iche maka ọnụọgụ fibers n'otu mpaghara yana mpaghara elu nke isi akwa mkpuchi ahụike. Otu tọn nke eriri polypropylene dị elu nwere ike imepụta ihe mkpuchi ahụike 250000 polypropylene N95, ma ọ bụ 900000 ruo 1 nde ihe mkpuchi ịwa ahụ.
Ihe mejupụtara ihe nzacha nke polypropylene gbazere agbaze bụ ọtụtụ eriri na-agafe agafe nke edobere na ntụzịaka enweghị usoro, yana dayameta eriri nke 1.5 ~ 3 μm, ihe dịka 1/30 nke dayameta nke ntutu mmadụ. Usoro nzacha nke polypropylene gbazere ihe nzacha na-agụnye akụkụ abụọ: ihe mgbochi igwe na mgbasa ozi electrostatic. N'ihi eriri ultrafine, nnukwu mpaghara elu akọwapụtara, oke porosity dị elu, na obere nha pore, polypropylene gbazere ihe nzacha nwere ezigbo mgbochi nje na mmetụta filtration. Polypropylene gbazee fụrụ nza ihe nwere ọrụ nke electrostatic adsorption mgbe ọgwụgwọ electrostatic gasịrị.
Ogo coronavirus ọhụrụ dị obere, ihe dịka 100 nm (0.1 μm), mana nje enweghị ike ịdị n'onwe ya. Ọ na-adịkarị na nzuzo na ụmụ irighiri mmiri mgbe ọ na-asụ ude, na nha nke ụmụ irighiri mmiri dị ihe dịka 5 μm. Mgbe nje nwere ụmụ irighiri mmiri na-abịaru nso akwa agbaze agbaze, a ga-etinye ha n'ụzọ elektrọnik n'elu, na-egbochi ha ịbanye n'ime akwa etiti dị oke ma nweta mmetụta mgbochi. N'ihi n'eziokwu na nje na-esi ike ikewapụ na ihicha mgbe ultrafine electrostatic fibers weghaara, na ịsacha nwekwara ike imebi electrostatic suction ike, ụdị nkpuchi a ga-eji naanị otu ugboro.
Nghọta nke Polypropylene Fiber
A na-akpọkarị eriri polypropylene, nke a makwaara dị ka eriri PP, dị ka polypropylene na China. Fibre polypropylene bụ eriri nke polymerizing propylene mere ka ọ bụrụ ihe eji eme ihe iji mepụta polypropylene, wee na-aga n'usoro usoro ntụgharị. Ụdị isi nke polypropylene gụnyere polypropylene filament, polypropylene short fiber, polypropylene split fiber, polypropylene expanded filament (BCF), polypropylene industrial yarn, polypropylene non-woven fabric, polypropylene sịga tow, wdg.
A na-ejikarị eriri polypropylene eme ihe maka kapeeti (isi kapeeti na suede), akwa eji achọ mma, akwa arịa ụlọ, eriri eriri dị iche iche, ụgbụ azụ, mmetụta mmanụ na-amịkọrọ, ihe mgbakwunye ụlọ, ihe nkwakọ ngwaahịa, na akwa ụlọ ọrụ dị ka akwa nzacha, akwa akpa, wdg. Enwere ike iji eriri polypropylene ultrafine mepụta akwa akwa akwa; Ihe mkpuchi nke polypropylene oghere fibers dị arọ, na-ekpo ọkụ ma nwee ezigbo ngbanwe.
Mmepe nke Polypropylene Fiber
Polypropylene fiber bụ ụdị eriri nke malitere mmepụta ụlọ ọrụ na 1960. Na 1957, Italy Natta et al. mbụ mepụtara isotactic polypropylene wee nweta mmepụta mmepụta ihe. N'oge na-adịghị anya mgbe nke ahụ gasịrị, ụlọ ọrụ Montecatini jiri ya mee ihe maka mmepụta nke polypropylene fibers. Na 1958-1960, ụlọ ọrụ na-eji polypropylene maka mmepụta eriri ma kpọọ ya Meraklon. N'ikpeazụ, mmepụta malitekwara na United States na Canada. Mgbe 1964 gachara, a na-emepụta ihe nkiri polypropylene kewara eriri maka ijikọ ma mee ka ọ bụrụ eriri akwa na akwa kapeeti site na fibrillation dị mkpa.
N'afọ ndị 1970, usoro ntụgharị na akụrụngwa dị mkpirikpi mere ka usoro mmepụta nke polypropylene fibers dịkwuo mma. N'otu oge ahụ, a malitere iji filament na-aga n'ihu na-agbasawanye na ụlọ ọrụ kapeeti, na mmepụta nke polypropylene fiber na-etolite ngwa ngwa. Mgbe 1980 gasịrị, mmepe nke polypropylene na teknụzụ ọhụrụ maka imepụta eriri polypropylene, ọkachasị ihe nrụpụta metallocene, mere ka mma resin polypropylene dịkwuo mma. N'ihi mmụba nke stereoregularity ya (isotropy ruo 99.5%), emela ka mma dị n'ime polypropylene fibers nke ukwuu.
N'etiti 1980s, polypropylene ultra-fine fibers dochiri ụfọdụ eriri owu maka akwa akwa na akwa anaghị kpara akpa. Ka ọ dị ugbu a, nyocha na mmepe nke eriri polypropylene na-arụkwa ọrụ nke ọma na mba dị iche iche gburugburu ụwa. Mgbasawanye na nkwalite teknụzụ mmepụta fiber dị iche agbasawanyela ngwa ngwa nke eriri polypropylene.
Ọdịdị nke polypropylene fibers
Polypropylene bụ molekul buru ibu nke nwere carbon carbon dị ka agbụ isi. Dabere na nhazi oghere nke otu methyl ya, e nwere ụdị atọ nke akụkụ atọ: random, iso regular, na meta regular. Atọm carbon nke dị na agbụ nke polypropylene molecules dị n'otu ụgbọ elu, enwere ike ịhazi akụkụ methyl dị iche iche na nhazi oghere dị iche iche na na n'okpuru isi ụgbọ elu.
Mmepụta nke eriri polypropylene na-eji polypropylene isotactic nwere isotropy karịrị 95%, nke nwere kristal dị elu. Ihe owuwu ya bụ yinye okirikiri mgbe niile nwere akụkụ atọ. Isi yinye nke molekul mejupụtara carbon atom gbagọrọ agbagọ agbụ n'otu ụgbọ elu, na akụkụ methyl otu dị n'otu akụkụ nke isi yinye ụgbọ elu. Nke a crystallization bụghị nanị a mgbe Ọdịdị nke onye n'agbụ, ma na-enwe mgbe niile yinye stacking na nri n'akuku direction nke yinye axis. kristal nke eriri polypropylene bụ isi bụ 33% ~ 40%. Mgbe agbatịchara, kristal na-abawanye na 37% ~ 48%. Mgbe ọgwụgwọ okpomọkụ gasịrị, crystallinity nwere ike iru 65% ~ 75%.
A na-emekarị eriri polypropylene site na usoro ịgbaze agbaze. N'ozuzu, eriri ndị ahụ dị nro ma kwụ ọtọ n'akụkụ ogologo ogologo, na-enweghị ọnyá, ma nwee akụkụ okirikiri okirikiri. A na-atụgharịkwa ha n'ime eriri na-adịghị agafe agafe na eriri ndị mejupụtara.
Njirimara arụmọrụ nke eriri polypropylene
Texture
Akụkụ kacha ukwuu nke polypropylene bụ udidi ọkụ ya, nke nwere njupụta nke 0.91g/cm ³, nke dị mfe karịa mmiri na naanị 60% nke ịdị arọ nke owu. Ọ bụ ụdị njupụta kachasị dị mfe n'etiti eriri kemịkal nkịtị, 20% dị ọkụ karịa naịlọn, 30% dị ọkụ karịa polyester, yana 40% dị ọkụ karịa eriri viscose. Ọ dị mma maka ịme uwe egwuregwu mmiri.
Njirimara anụ ahụ
Polypropylene nwere nnukwu ike na mgbaji elongation nke 20% -80%. Ike na-ebelata na mmụba nke okpomọkụ, na polypropylene nwere modul mmalite dị elu. Ike mgbake ya dị ka naịlọn 66 na polyester, ma dị mma karịa acrylic. Karịsịa, ike mgbake ngwa ngwa ya ka ukwuu, ya mere ákwà polypropylene na-eguzogidekwa iyi. Polypropylene ákwà anaghị adịkarị mfe wrinkling, ya mere ọ na-adịgide adịgide, nha uwe na-adịchaghị mma, ọ bụghịkwa nrụrụ ngwa ngwa.
Ntinye mmiri na ịrụ ọrụ agba
N'etiti eriri sịntetik, polypropylene nwere mmịpụta mmiri kachasị njọ, na-enwekwa ihe fọrọ nke nta ka ọ bụrụ mmiri mmiri efu n'okpuru ọnọdụ ikuku ọkọlọtọ. Ya mere, ike ya kpọrọ nkụ na mmiri mmiri na ike mgbaji ya fọrọ nke nta ka ọ hà nhata, na-eme ka ọ dabara adaba maka ịme ụgbụ azụ, eriri, akwa nzacha, na gauze na-egbu egbu maka ọgwụ. Polypropylene na-enwekarị ọkụ eletrik kwụ ọtọ na pilling mgbe a na-eji ya eme ihe, yana ọnụ ọgụgụ dị ala. Uwe ahụ dị mfe ịsacha ma kpoo ngwa ngwa, ma dịtụ ike. N'ihi ụkọ mmiri na-adịghị mma na nri mgbe ọ na-eyi, a na-ejikọta polypropylene na eriri na ntinye mmiri dị elu mgbe eji ya na akwa akwa.
Polypropylene nwere usoro macromolecular mgbe niile yana kristal dị elu, mana enweghị otu ndị na-arụ ọrụ nke nwere ike ijikọ ụmụ irighiri ihe na-esiji esiji, na-eme ka agba agba sie ike. Agba nkịtị enweghị ike ịcha ya. Iji eji esiji agbasasị agbasasị agbasasị polypropylene nwere ike bute naanị agba dị obere na agba adịghị mma. Enwere ike nweta nkwalite arụmọrụ nke polypropylene site na ụzọ dị ka graft copolymerization, agba mmiri mmiri mbụ, na ngbanwe ngwakọta ọla.
Njirimara kemịkalụ
Polypropylene nwere ezigbo nguzogide kemịkalụ, nje ụmụ ahụhụ, na ebu. Nkwụsi ike ya megide acid, alkali, na ihe ndị ọzọ kemịkalụ dị elu karịa eriri sịntetik ndị ọzọ. Polypropylene nwere ezigbo nguzogide kemịkalụ, ewezuga nitric acid gbadoro ụkwụ na soda caustic. Ọ nwere ezigbo iguzogide acid na alkali, na-eme ka ọ dị mma maka iji dị ka ihe nzacha naihe nkwakọ ngwaahịa.Otú ọ dị, nkwụsi ike ya na ihe mgbaze organic adịghị mma.
Nguzogide okpomọkụ
Polypropylene bụ eriri thermoplastic nwere ebe nro dị ala na ebe agbaze karịa eriri ndị ọzọ. Ebe okpomọkụ dị nro bụ 10-15 ℃ dị ala karịa ebe mgbaze, na-ebute nkwụsị ọkụ na-adịghị mma. N'oge agba, imecha, na ojiji nke polypropylene, ọ dị mkpa ịṅa ntị na njikwa okpomọkụ iji zere nrụrụ plastik. Mgbe ikpo ọkụ na ọnọdụ akọrọ (dị ka okpomọkụ karịrị 130 ℃), polypropylene ga-enweta cracking n'ihi oxidation. Ya mere, a na-agbakwụnye ihe na-egbochi ịka nká (ọkụ stabilizer) na mmepụta nke polypropylene fiber iji meziwanye nkwụsi ike nke eriri polypropylene. Ma polypropylene nwere mma iguzogide mmiri na okpomọkụ. Obụpde na esi mmiri ruo ọtụtụ awa na-enweghị deformation.
Arụmọrụ ndị ọzọ
Polypropylene nwere ọkụ na-adịghị mma na ihu igwe na-eguzogide, ọ na-adịkarị mfe ịka nká, ọ dịghị eguzogide ọgwụ ígwè, ma ekwesịrị ịchekwa ya pụọ na ìhè na okpomọkụ. Otú ọ dị, enwere ike imeziwanye ihe mgbochi ịka nká site n'ịgbakwunye ihe na-egbochi ịka nká n'oge ntụgharị. Tụkwasị na nke ahụ, polypropylene nwere ezigbo mkpuchi eletriki, ma ọ na-adịkarị mfe ọkụ eletrik n'oge nhazi. Polypropylene adịghị mfe ọkụ. Mgbe eriri ndị ahụ na-adalata ma gbazee n'ọkụ, ire ọkụ ahụ nwere ike imenyụ n'onwe ya. Mgbe ọkụ, ọ na-etolite ngọngọ siri ike nke nwere ntakịrị isi asphalt.
Ụgwọ nke ụlọ ọrụ Dongguan Liansheng Non Woven Technology Co., Ltd.e hiwere na Mee 2020. Ọ bụ nnukwu ụlọ ọrụ mmepụta ihe na-abụghị akwa na-ejikọta nyocha na mmepe, mmepụta na ahịa. Ọ nwere ike ịmepụta agba dị iche iche nke PP spunbond akwa na-abụghị kpara nke nwere obosara nke na-erughị 3.2 mita site na gram 9 ruo 300.
Oge nzipu: Ọktoba 14-2024