Bukatar kasuwa don babban abin narkewa PP
Ayyukan narkewar narkar da polypropylene yana da alaƙa da alaƙa da nauyin kwayoyin sa. Matsakaicin nauyin ƙwayoyin ƙwayoyin cuta na resin polypropylene kasuwanci wanda tsarin Ziegler Natta na al'ada ya shirya shine gabaɗaya tsakanin 3 × 105 da 7 × 105. Ma'anar narkewa na waɗannan na al'adapolypropylene resinsgabaɗaya ƙasa ce, wanda ke iyakance kewayon aikace-aikacen su.
Tare da saurin haɓaka masana'antar fiber sunadarai da masana'antar injuna, masana'antar masana'anta da ba a saka ba ta tashi cikin sauri. Jerin fa'idodin polypropylene sun sa ya zama kayan da aka fi so don yadudduka da ba a saka ba. Tare da ci gaban al'umma, filayen aikace-aikace na yadudduka da ba a saka ba suna karuwa. A fannin likitanci da kiwon lafiya, ana iya amfani da yadudduka da ba a saka ba, wajen kera kwat da wando, abin rufe fuska, rigar tiyata, rigar tsaftar mata, diaper na jarirai, da dai sauransu; A matsayin kayan gini da kayan aikin geotechnical, ana iya amfani da yadudduka marasa saƙa don hana ruwa rufin, ginin titi, injiniyan kiyaye ruwa, ko jigon rufin da aka ci gaba ta amfani da fasaha mai haɗawa da allura. Rayuwar sabis ɗin sa ya fi sau 5-10 fiye da kwalta ta gargajiya; Kayayyakin tacewa kuma suna ɗaya daga cikin samfuran masana'anta da ba sa saka cikin sauri, waɗanda za'a iya amfani da su don iskar gas da tace ruwa a masana'antu kamar busassun sinadarai, magunguna, da abinci, kuma suna da babbar kasuwa; Bugu da kari, ana iya amfani da yadudduka da ba a saka ba wajen kera fata na roba, da jakunkuna, da lilin tufafi, da yadudduka na ado, da goge goge don amfanin gida.
Yana da daidai saboda ci gaba da ci gaba naba saƙa yaduddukacewa abubuwan da ake buƙata don samarwa da aikace-aikacen su suna ƙaruwa akai-akai, kamar narke hura, samar da sauri mai sauri, samfuran bakin ciki, da dai sauransu. Saboda haka, buƙatun don sarrafa aikin guduro na polypropylene, babban albarkatun ƙasa na yadudduka da ba a saka ba, an kuma ƙara daidai daidai; Bugu da kari, samar da high-gudun kadi ko lafiya denier polypropylene zaruruwa kuma bukatar polypropylene guduro don samun mai kyau narke kwarara aiki; Wasu pigments waɗanda ba za su iya jure yanayin zafi ba suna buƙatar polypropylene a matsayin mai ɗaukar hoto tare da ƙarancin yanayin sarrafawa. Duk waɗannan suna buƙatar amfani da resin polypropylene ultra-high melt index azaman albarkatun ƙasa waɗanda za'a iya sarrafa su a ƙananan yanayin zafi.
Abu na musamman don narke busa masana'anta shine polypropylene tare da babban ma'aunin narkewa. Fihirisar narkewa tana nufin adadin narkakkar kayan da ke wucewa ta daidaitaccen bututun capillary kowane minti 10. Mafi girman ƙimar, mafi kyawun sarrafa ruwa na kayan. Mafi girman ma'anar narkewar polypropylene, mafi kyawun zaruruwan zaruruwa suna fesa, kuma mafi kyawun aikin tacewa na masana'anta da aka hura narke.
Hanyar shirya babban narke index polypropylene guduro
Ɗaya shine don sarrafa nauyin kwayoyin halitta da rarraba nauyin kwayoyin halitta na polypropylene ta hanyar sarrafa tsarin amsawa na polymerization, kamar rage nauyin kwayoyin halitta na polymer ta hanyar ƙara yawan abubuwan cationic kamar hydrogen gas, don haka inganta alamar narkewa. Wannan hanya ta iyakance ta dalilai kamar tsarin catalytic da yanayin amsawa, yana sa ya zama da wahala a sarrafa kwanciyar hankali na narke index da aiwatar da shi.
Yanshan Petrochemical ya kasance kai tsaye polymering narke kayan busa tare da index narke sama da 1000 ta amfani da abubuwan kara kuzari a cikin ƴan shekarun da suka gabata. Saboda wahalar sarrafa kwanciyar hankali, ba a aiwatar da polymerization mai girma ba. Tun bayan barkewar cutar a wannan shekara, Yanshan Petrochemical ya karɓi gurɓataccen gurɓataccen abu na polypropylene narke busa fasahar samar da kayan aikin da aka haɓaka a cikin 2010 don samar da polypropylene narke busa masana'anta na musamman a ranar 12 ga Fabrairu. An samar da samfurin kuma a halin yanzu ana aikawa zuwa masu amfani da ke ƙasa don gwaji.
Wata hanya ita ce don sarrafa lalatawar polypropylene da aka samu ta hanyar polymerization na al'ada, rage nauyin kwayoyin halitta, da kuma ƙara alamar narkewa.
A da, ana amfani da hanyoyin lalata yanayin zafi da yawa don rage nauyin kwayoyin halitta na polypropylene, amma wannan babban zafin jiki na inji yana da lahani da yawa, irin su asarar ƙari da lalatawar thermal, da matakai marasa ƙarfi. Bugu da ƙari, akwai hanyoyi irin su lalatawar ultrasonic, amma waɗannan hanyoyin sau da yawa suna buƙatar kasancewar abubuwan kaushi, wanda ke ƙara wahala da tsadar tsari. A cikin 'yan shekarun nan, hanyoyin da ake amfani da su na lalata polypropylene sun kasance a hankali a hankali.
Samar da Babban Yatsa Mai Narke PP ta Hanyar Rage Sinadarai
Hanyar lalata sinadarai ta ƙunshi mayar da martani ga polypropylene tare da abubuwan lalata sinadarai irin su Organic peroxides a cikin screw extruder, haifar da sarkar kwayoyin halitta na polypropylene ta karye kuma ta rage nauyin kwayoyin. Idan aka kwatanta da sauran hanyoyin lalata, yana da fa'idodi na cikakkiyar lalacewa, mai kyau mai narkewa mai narkewa, tsari mai sauƙi da mai yuwuwa, kuma yana da sauƙin aiwatar da manyan masana'antu na masana'antu. Wannan kuma ita ce hanyar da aka fi amfani da ita ta hanyar gyare-gyaren masana'antun filastik.
Bukatun kayan aiki
Babban wurin narkewa ya bambanta da kayan aikin gyaran PP na yau da kullun. Kayan aiki don fesa narkakkar kayan yana buƙatar juzu'i mai tsayi, kuma shugaban na'ura yana buƙatar zama a tsaye ko amfani da granulation karkashin ruwa (Wuxi Huachen yana da irin wannan yankan ruwa); Kayan yana da bakin ciki sosai kuma yana buƙatar shiga cikin ruwa nan da nan bayan ya fito daga kan na'ura don sauƙi mai sanyaya;
Don samar da polypropylene na al'ada, saurin yankewa na extruder shine mita 70 a minti daya, yayin da babban narke polypropylene, ana buƙatar saurin yankewa sama da mita 120 a minti daya. Bugu da kari, saboda saurin kwararar ruwa na babban narke polypropylene, nisan sanyaya yana buƙatar haɓaka daga mita 4 zuwa mita 12.
Injin don kera kayan busa narke yana buƙatar ci gaba da canza raga, yawanci ana amfani da mai sauya ragar tasha biyu. Abubuwan da ake buƙata na wutar lantarki sun fi girma, kuma za a yi amfani da ƙarin shingen shinge a cikin abubuwan da aka haɗa; A cewar Koyapan, layin tagwayen dunƙule da aka yi da kayan narke na musamman yana da banbanci sosai.
1. Tabbatar da ingantaccen ciyarwa (PP, DCP, da dai sauransu);
2. Ƙayyade ma'auni mai dacewa da matsayi na axial na budewa bisa ga rabin rayuwa na tsarin da aka haɗa (wanda ya samo asali zuwa ƙarni na uku don tabbatar da ƙaddamar da ƙwayar CR-PP mai sauƙi);
3. Don tabbatar da cewa yatsa mai narkewa yana da babban yawan amfanin ƙasa a cikin kewayon haƙuri (fiye da 30 da aka gama tube suna da ƙimar farashi mafi girma da haɗin kai idan aka kwatanta da dozin kawai);
4. Dole ne a samar da kawunan magudanar ruwa na musamman. Narke da dumama ya kamata su zama iri ɗaya, kuma adadin sharar gida ya zama kaɗan;
5. Zai fi dacewa a sanye shi da balagagge mai sanyi granulator don narke busa kayan (wanda ke da suna mai kyau a cikin masana'antu) don tabbatar da ingancin ƙwayoyin da aka gama da kuma ƙimar daraja mafi girma;
6. Zai fi kyau idan akwai ra'ayoyin gwaji na kan layi. Bugu da ƙari, ƙari na masu ƙaddamar da lalata ruwa zuwa abinci na gefe yana buƙatar daidaito mafi girma saboda ƙananan adadin abubuwan da ake ƙarawa. Don kayan abinci na gefe, irin su Brabenda da aka shigo da su, Kubota, Matsunai na gida, da sauransu.
Abubuwan da ake amfani da su a halin yanzu na lalata lalata
1: Dit-butyl peroxide, wanda kuma aka sani da di-tert-butyl peroxide, initiator a, vulcanizing wakili dTBP, ruwa ne mara launi zuwa ɗan rawaya mai haske wanda ba ya narkewa a cikin ruwa kuma ba shi da ƙarfi tare da kaushi na halitta kamar benzene, toluene, da acetone. Ƙarfin iskar oxygen mai ƙarfi, mai ƙonewa, ingantacciyar kwanciyar hankali a zafin jiki, rashin jin daɗin tasiri.
2: Sulfurizer sau biyu, an rage shi da DBPH, sunan sinadarai 2,5-dimethyl-2,5-bis (tert butylperoxy) hexane, nauyin kwayoyin 290.44. Kodadden ruwa mai launin rawaya tare da ƙarancin dangi na 0.8650 a cikin nau'in sauti da farin foda. Wurin daskarewa shine 8 ℃. Wurin tafasa 50 ~ 52 ℃ (13Pa). Indexididdigar refractive daga 1.418 zuwa 1.419. Dankowar ruwa shine 6.5mPa. s. Filashi (bude kofin) 58 ℃. Mai narkewa a cikin mafi yawan kaushi na halitta kamar su alcohols, ethers, ketones, esters, hydrocarbons aromatic, da dai sauransu, wanda ba a iya narkewa cikin ruwa.
3: Gwajin gauraye yatsu
Ana buƙatar gwajin narkewar yatsa daidai da GBIT 30923-2014 Polypropylene Melt Spray Materials na Musamman; Ba za a iya gwada kayan aikin narke na yau da kullun ba. Babban narkewa yana nufin amfani da hanyar volumetric maimakon hanyar taro don gwaji.
Kayan aiki na gida sun hada da Chengde Youte, Fasahar Lantarki ta Guangxin, Hangzhou Jinmai, Kimiyyar Kimiyya da Fasahar Ilimin Jilin, da kayan aikin da aka shigo da su sun haɗa da Zwick; Chengde Jinjian Testing Instrument Co., Ltd. yana samar da MFL-2322H narke kwararan mita wanda aka tsara musamman don ma'aunin NVR na ma'aunin ultra-high kwarara na masana'antar gwajin polypropylene, wanda ya dace da buƙatun masana'anta. 309232014 Polypropylene Melt Fesa Kayan Musamman. Matsakaicin gwajin shine (500-2500) cm/10min.
A halin yanzu, akwai:
1. Shandong Daoen Polymer Materials Co., Ltd
2. Hunan Shengjin New Materials Co., Ltd
3. Jinfa Technology Co., Ltd
4. Beijing Yishitong New Materials Development Co., Ltd
5. Shanghai Huahe Composite Materials Co., Ltd
6. Hangzhou Chenda New Materials Co., Ltd
7. Basel, Dalin, Koriya ta Kudu
Lokacin aikawa: Afrilu-01-2024