Polypropylene (PP) masana'anta da ba a saka ba ana amfani da su sosai saboda kyakkyawan aikin sa, hanyoyin sarrafawa masu sauƙi, da ƙarancin farashi. Musamman a cikin 'yan shekarun nan, an yi amfani da shi sosai a fannoni kamar kiwon lafiya, tufafi, kayan marufi, kayan shafa, kayan rufe kayan aikin gona, geotextiles, kayan tace masana'antu, da dai sauransu, kuma yana da yanayin maye gurbin kayan gargajiya.
Saboda tsarin da ba na iyakacin duniya ba na PP, wanda a zahiri ba ya ƙunshi ƙungiyoyin hydrophilic, masana'anta na PP waɗanda ba saƙa ba su da ƙarancin aikin sha ruwa. Gyaran hydrophilic ko karewa ya zama dole don kera yadudduka na PP na hydrophilic waɗanda ba safai.
I. Hanyar shirya hydrophilic ba saƙa yadudduka
Domin inganta hydrophilicity na PP nonwoven yadudduka, akwai yawanci hanyoyi biyu don inganta su surface wettability: jiki gyara da kuma sinadaran gyara.
Gyaran sinadarai galibi yana canza tsarin kwayoyin halitta na PP kuma yana ƙara ƙungiyoyin hydrophilic zuwa sarƙoƙin macromolecular, ta haka yana canza hygroscopicity. Akwai hanyoyi da yawa irin su copolymerization, grafting, giciye, da chlorination.
Gyaran jiki galibi yana canza mafi girman tsarin kwayoyin don inganta haɓakar ruwa, galibi ta hanyar gyare-gyaren gauraya (kafin kadi) da gyare-gyaren saman (bayan kadi).
II. Canje-canje gauraye (juyawa kafin gyara)
Dangane da lokutan kari daban-daban na abubuwan da aka gyara, ana iya raba su zuwa hanyar masterbatch, cikakken hanyar granulation, da hanyar allura mai suturar sutura.
(1) Hanyar sarrafa launi na yau da kullun
Wannan hanya ce mai mahimmanci don samar da masana'anta na hydrophilic wanda ba a saka ba.
Da fari dai, masana'antun itace suna yin abubuwan da ake amfani da su na hydrophilic su zama barbashi na jellyfish, sannan a haɗe su da PP don samar da masana'anta.
Abũbuwan amfãni: Sauƙaƙan samarwa, babu buƙatar ƙara kowane kayan aiki, wanda ya dace da ƙananan samar da shanu, ban da ƙarfin ƙarfin hydrophilic.
Hasara: Sannun ruwa mai saurin ruwa da rashin aikin sarrafawa, galibi ana amfani dashi a cikin yadudduka. Babban farashi, sau 2 zuwa 3 mafi girma fiye da gyaran fuska.
Rashin iya jurewa yana buƙatar daidaita tsarin. Wasu abokan ciniki sun ɓata ton 5 na masana'anta daga masana'antar masterbatch kala biyu ba tare da samar da samfuran da aka gama ba.
(2) Cikakken hanyar granulation
Haɗa mai gyara, yankan PP, da ƙari daidai gwargwado, yayyafa su a ƙarƙashin dunƙule don samar da barbashi na PP hydrophilic, sannan narke kuma a jujjuya su cikin zane.
Abũbuwan amfãni: Kyakkyawan aiwatarwa, sakamako mai dorewa, da masana'anta da za a sake amfani da su.
Rashin hasara: Ana buƙatar ƙarin kayan aikin screw extruder, wanda ke haifar da farashi mafi girma a kowace ton da kuma sannu a hankali hydrophilicity, yana sa ya dace kawai don samar da manyan sikelin.
(3) Allurar Fangqian
Kai tsaye ƙara reagents na hydrophilic, watau hydrophilic polymers, zuwa babban dunƙule na yadudduka waɗanda ba saƙa kuma a haɗa su da narke PP don jujjuya kai tsaye.
Abũbuwan amfãni: Sakamakon yana dadewa kuma ana iya sake amfani da masana'anta.
Lalacewar: Saboda rashin iya haɗawa daidai gwargwado, juzu'i yana da wahala da rashin motsi.
III. Surface hydrophilic kammala (bayan jujjuya magani)
Ƙarshen hydrophilic hanya ce mai sauƙi, mai tasiri, kuma mai sauƙi don samar da yadudduka na hydrophilic wadanda ba saƙa. Yawancin masana'antun mu waɗanda ba sa saka suna amfani da wannan hanyar. Babban tsari shine kamar haka:
Online spunbond zafi birgima mara saƙa masana'anta - abin nadi shafi ko ruwa spraying hydrophilic wakili - infrared ko iska mai zafi
Abũbuwan amfãni: Babu spinnability al'amurran da suka shafi, azumi hydrophilic sakamako na wadanda ba saka masana'anta, high dace, low price, shi ne 1 / 2-1 / 3 na kudin talakawa launi masterbatch. Dace da babban sikelin samarwa;
Hasara: Yana buƙatar sayan kayan aikin daban-daban bayan sarrafawa, wanda yake da tsada. Bayan wanke sau uku, lokacin shigar ruwa yana ƙaruwa da kusan sau 15. Rashin iya biyan buƙatun don sake amfani da su;
Samar da taro;
Abubuwan amfani da rashin amfani na wannan hanya sun ƙayyade cewa ana amfani da shi ne musamman don kayan da za a iya zubar da su wanda ke buƙatar haɓakaccen ruwa da ruwa, irin su kayan tsabta, diapers, napkins na tsabta, da dai sauransu.
Ⅳ.Amfani da Haɗin Gwargwadon Ƙarƙashin Ƙarƙashin Halitta PPS03
Idan aka yi la'akari da fa'idodi da rashin amfani na hanyoyin (-) da (ii), an ƙirƙira wani ɓangarorin uwar hydrophilic PPS030.
Irin wannan nau'in jellyfish barbashi yana da halaye na matsakaicin sashi (mai kama da ƙwayoyin jellyfish na yau da kullun), sakamako mai sauri, tasirin yaduwa mai sauri, sakamako mai kyau, sakamako mai dorewa, juriya mai kyau na wanka, amma ɗan ƙaramin farashi (mai kama da ƙwayoyin jellyfish na yau da kullun).
Kyakkyawan spinnability, babu buƙatar daidaita tsarin samarwa.
Ya dace da ƙananan samar da tsari da tsayin daka na wanki, samfuran sake amfani da su kamar gandun daji da yadudduka na noma.
Babban alamun kimantawa na masana'anta na hydrophilic PP ba saƙa sun haɗa da sha ruwa, kusurwar lamba, da tasirin capillary.
(1) Yawan sha ruwa: yana nufin adadin ruwan da aka sha a kowace naúrar masana'anta na hydrophilic nonwoven a cikin daidaitaccen lokaci ko lokacin da ake buƙata don cika jika kayan. Mafi girman shayar da ruwa, mafi kyawun sakamako.
(2) Hanyar kusurwa: Sanya masana'anta na hydrophilic PP a kan farantin gilashi mai tsabta da santsi, shimfiɗa shi a kan tanda, kuma bari ya narke. Bayan narkewa, cire farantin gilashin kuma sanyaya shi ta dabi'a zuwa zafin jiki. Auna madaidaicin kusurwar lamba ta amfani da hanyoyin gwaji kai tsaye. Ƙananan kusurwar lamba, mafi kyau. (PP ba saƙa masana'anta ba tare da hydrophilic magani bayan kai game da 148 ° C).
Lokacin aikawa: Dec-04-2023