Polypropilene yashonga ihuha idakozwe - imyenda idoda
Gushonga imyenda idoze
Incamake
Imikoreshereze itandukanye cyangwa urwego rwa masike ikingira hamwe n imyenda ikoresha ibikoresho bitandukanye nuburyo bwo gutegura, nkurwego rwohejuru rwimiti irinda ubuvuzi (nka N95) n imyenda ikingira, ibice bitatu kugeza kuri bitanu byimyenda idoda, aribyo SMS cyangwa SMMMS.
Igice cyingenzi muri ibyo bikoresho birinda ni urwego rwa bariyeri, arirwo rwashongeshejwe rudashizwemo M, diameter ya fibre ya layer ni nziza, 2 ~ 3μm, igira uruhare runini mukurinda kwinjira kwa bagiteri n'amaraso. . Umwenda wa microfibre werekana akayunguruzo keza, umwuka mwiza hamwe na adsorbability, bityo ikoreshwa cyane mubikoresho byo kuyungurura, ibikoresho byubushyuhe, isuku yubuvuzi nizindi nzego.
Polipropilene yashonga yashizwemo tekinoloji yo gutunganya imyenda
Gushonga byashizwemo imyenda idakozwe mubusanzwe ni polymer resin ibice byo kugaburira → gushonga gushonga → gushonga umwanda wo kuyungurura → gupima pompe gupima neza → spinet → mesh → guhindagura → gutunganya ibicuruzwa.
Ihame ryo gushonga uburyo bwo gukuramo ni ugukuramo polymer gushonga mu mwobo wa spinneret wumutwe wapfuye kugirango habeho urujya n'uruza. Muri icyo gihe, umuvuduko mwinshi nubushyuhe bwo hejuru butembera kumpande zombi zumwobo wa spinet urasasa kandi urambura umugezi ushonga, hanyuma ugahita utunganyirizwa muri filaments ufite ubwiza bwa 1 ~ 5μm gusa. Izi filaments noneho zikururwa kuri fibre ngufi ya 45mm hamwe nubushyuhe bwumuriro.
Kugirango wirinde umwuka ushyushye gutandukanya fibre ngufi, hashyizweho igikoresho cyo gukuramo vacuum (munsi ya ecran ya coagulation) kugirango gikusanyirize hamwe microfibre ikozwe numuyaga mwinshi ushushe. Hanyuma, yishingikiriza ku kwifata kugirango ikore imyenda idashonga.
Ibikorwa nyamukuru byingenzi:
Ibyiza bya polymer mbisi: harimo imiterere ya rheologiya yibikoresho bya resin, ibirimo ivu, ikwirakwizwa ryinshi rya molekile, nibindi. Muri byo, imiterere ya rheologiya yibikoresho fatizo nicyo kintu cyingenzi, gikunze kugaragazwa nigipimo cyo gushonga (MFI). Ninini MFI, nibyiza gushonga ibintu, nibindi. Kugabanya uburemere bwa molekuline yibikoresho bya resin, niko MFI irushaho kugabanuka no kugabanuka kwijimye, niko bikwiranye nuburyo bwo gushonga hamwe no gutegura nabi. Kuri polypropilene, MFI isabwa kuba iri hagati ya 400 ~ 1800g / 10mIN.
Muburyo bwo gushonga ibicuruzwa, ibipimo byahinduwe ukurikije icyifuzo cyibikoresho fatizo nibicuruzwa birimo:
. Isano ryayo na fibre ya fibre yiyongera kumurongo, ubwinshi bwo gusohora ni bwinshi, diameter ya fibre iriyongera, umubare wumuzi uragabanuka nimbaraga zigabanuka, igice cyo guhuza kigabanuka, gitera na silik, bityo imbaraga zigereranijwe zimyenda idoda iragabanuka. .
(2) ubushyuhe bwa buri gace ka screw ntabwo bujyanye gusa nuburyo bworoshye bwo kuzunguruka, ahubwo bigira ingaruka no kugaragara, kumva no gukora kubicuruzwa. Ubushyuhe buri hejuru cyane, hazabaho "SHOT" guhagarika polymer, inenge yimyenda iriyongera, fibre yamenetse yiyongera, bigaragara "kuguruka". Ubushyuhe budakwiye Igenamiterere rishobora gutera guhagarika umutwe wa spinkler, gushira umwobo wa spinneret, no kwangiza igikoresho.
. Kubijyanye nibindi bipimo ni bimwe, ongera umuvuduko wumuyaga ushushe, kunanuka kwa fibre, fibre node yiyongera, imbaraga zimwe, imbaraga ziyongera, kutambara imyenda biba byoroshye kandi byoroshye. Ariko umuvuduko ni munini cyane, byoroshye kugaragara "kuguruka", bigira ingaruka kumiterere yimyenda idoda; Kugabanuka k'umuvuduko, porotike iriyongera, irwanya iyungurura iragabanuka, ariko kuyungurura birangirika. Twabibutsa ko ubushyuhe bwikirere bushyushye bugomba kuba hafi yubushyuhe bwo gushonga, bitabaye ibyo hazavamo umwuka kandi agasanduku kangiritse.
(4) Ubushyuhe bwo gushonga Ubushyuhe bwo gushonga, buzwi kandi nk'ubushyuhe bwo mu mutwe, bifitanye isano rya bugufi no gushonga. Hamwe no kwiyongera kwubushyuhe, amazi ashonga aba meza, ubwiza bugabanuka, fibre iba nziza kandi uburinganire bukaba bwiza. Nyamara, uko hasi yubukonje, nibyiza, ubukonje buke cyane, bizatera gutegura cyane, fibre iroroshye kumeneka, gukora microfibre ultra-bigufi iguruka mukirere ntishobora gukusanywa.
(5) Kwakira intera Kwakira intera (DCD) bivuga intera iri hagati ya spinneret na perde mesh. Iyi parameter ifite ingaruka zikomeye kumbaraga za fibre mesh. Kwiyongera kwa DCD, imbaraga no kugonda gukomera biragabanuka, diameter ya fibre iragabanuka, naho guhuza bigabanuka. Kubwibyo, umwenda udoda ubudodo uroroshye kandi uhindagurika, ubwiyongere bwiyongera, kandi kurwanya filtration no gukora neza. Iyo intera ari nini cyane, umushinga wa fibre ugabanywa numuyaga ushyushye, kandi guhuzagurika bizaba hagati ya fibre mugikorwa cyo gutegura, bikavamo filaments. Iyo intera yo kwakira ari nto cyane, fibre ntishobora gukonjeshwa rwose, bikaviramo insinga, imbaraga zidoda zidoda zigabanuka, ubwinshi bwiyongera.
