Isoko ryisoko ryo gushonga cyane PP
Imikorere yo gushonga ya polypropilene ifitanye isano cyane nuburemere bwa molekile. Impuzandengo ya molekuline yubucuruzi bwa polypropilene yubucuruzi yateguwe na sisitemu ya catalitiki ya Ziegler Natta isanzwe iri hagati ya 3 × 105 na 7 × 105. Icyerekezo cyo gushonga cyibi bisanzwepolipropileneni muri rusange, igabanya imipaka yabo.
Hamwe niterambere ryihuse ryinganda za fibre chimique ninganda zimashini zidoda, inganda zidoda zidoda zazamutse vuba. Urukurikirane rwibyiza bya polypropilene bituma ruba ibikoresho byibanze byimyenda idoda. Hamwe niterambere ryumuryango, imirima ikoreshwa yimyenda idoda iraguka. Mu rwego rw'ubuvuzi n'ubuzima, imyenda idoda irashobora gukoreshwa mu gukora amakositimu yo kwigunga, masike, amakanzu yo kubaga, ibitambaro by'isuku by'abagore, impuzu z'abana, n'ibindi; Nka nyubako nibikoresho bya geotechnique, imyenda idoda irashobora gukoreshwa mugukingira amazi hejuru yinzu, kubaka umuhanda, ubwubatsi bwo kubungabunga amazi, cyangwa igisenge cyateye imbere gishobora gukorwa hifashishijwe ikoranabuhanga rya spunbond na inshinge. Ubuzima bwa serivisi bwayo bukubye inshuro 5-10 kurenza asfalt gakondo; Ibikoresho byo kuyungurura kandi ni kimwe mu bicuruzwa byihuta cyane mu myenda idoda, ishobora gukoreshwa mu kuyungurura gaze no kuyungurura amazi mu nganda nka chimique yumye, imiti, n'ibiribwa, kandi ifite isoko rikomeye ku isoko; Byongeye kandi, imyenda idoda irashobora gukoreshwa mugukora uruhu rwubukorikori, imizigo, imyenda yimyenda, imyenda yo gushushanya, no guhanagura imyenda yo gukoresha murugo.
Nukuri kuberako iterambere rihoraho ryaimyenda idodako ibisabwa mu kubyaza umusaruro no kubishyira mu bikorwa bigenda byiyongera, nko gushonga, kubyara umuvuduko mwinshi, ibicuruzwa bito, n'ibindi. Kubwibyo rero, ibisabwa mu gutunganya imikorere ya polypropilene resin, ibikoresho fatizo by’imyenda idoda, nabyo byiyongereye; Byongeye kandi, kubyara fibre yihuta cyane cyangwa fibre nziza ya polipropilene irasaba kandi polypropilene resin kugira imikorere myiza yo gushonga; Ibibara bimwe bidashobora kwihanganira ubushyuhe bwinshi bisaba polypropilene nkumutwara ufite ubushyuhe buke bwo gutunganya. Ibi byose bisaba gukoresha ultra-high melt index polypropylene resin nkibikoresho fatizo bishobora gutunganywa mubushyuhe buke.
Ibikoresho bidasanzwe byo gushonga byahinduwe ni polypropilene hamwe nigipimo kinini cyo gushonga. Icyerekezo gishonga bivuga ubwinshi bwibintu byashongeshejwe binyura mu miyoboro isanzwe ya capillary buri minota 10. Kurenza agaciro, niko gutunganya ibintu neza. Iyo urwego rwo hejuru rwashonga rwa polypropilene, fibre nziza yatewe, kandi nuburyo bwiza bwo kuyungurura imyenda yashonze.
Uburyo bwo gutegura indangagaciro ndende ya polypropilene resin
Imwe muriyo ni ukugenzura uburemere bwa molekuline hamwe nuburemere bwa molekuline ikwirakwizwa rya polypropilene mugucunga inzira ya polymerisiyonike, nko kugabanya uburemere bwa molekuline ya polymer hongerwamo imbaraga ziterwa na cationic nka gaze ya hydrogène, bityo bikazamura igipimo cyo gushonga. Ubu buryo bugarukira kubintu nka sisitemu ya catalitiki nuburyo bwo kubyitwaramo, bigatuma bigorana kugenzura ihame ryimiterere ya melt no kuyishyira mubikorwa.
Yanshan Petrochemical yagiye ikora polymerisation yibikoresho byashongeshejwe hamwe nigipimo cyashonga kirenga 1000 ukoresheje catalizike ya metallocene mumyaka mike ishize. Kubera ingorane zo kugenzura ituze, nini ya polymerisiyasi nini ntabwo yakozwe. Kuva iki cyorezo cyatangira muri uyu mwaka, Petrochemical Yanshan yafashe ingamba zo kugabanya kwangirika kwa polypropilene yashonze ikoranabuhanga ryakozwe mu mwaka wa 2010 kugira ngo habeho polipropilene yashonze imyenda idasanzwe idoda imyenda idasanzwe. Igicuruzwa cyarakozwe kandi kuri ubu cyoherejwe kubakoresha hasi kugirango bagerageze.
Ubundi buryo ni ukugenzura iyangirika rya polypropilene yabonetse binyuze muri polymerisation isanzwe, kugabanya uburemere bwa molekile, no kongera ibipimo byayo.
Mu bihe byashize, uburyo bwo kwangirika k'ubushyuhe bwo hejuru bwakoreshwaga cyane mu kugabanya uburemere bwa molekuline ya polypropilene, ariko ubu buryo bwo mu rwego rwo hejuru bwo gutesha agaciro imashini zifite ibibi byinshi, nko gutakaza inyongeramusaruro no kubora k'ubushyuhe, hamwe n'inzira zidahinduka. Mubyongeyeho, hariho uburyo nko kwangirika kwa ultrasonic, ariko ubu buryo akenshi busaba ko habaho ibishishwa, byongera ingorane nigiciro cyibikorwa. Mu myaka yashize, uburyo bwo kwangiza imiti ya polypropilene bwagiye bukoreshwa buhoro buhoro.
Umusaruro wurutoki rwinshi rwashizweho PP nuburyo bwo gutesha agaciro imiti
Uburyo bwo kwangiza imiti burimo gukora polypropilene hamwe nubumara bwangiza nka chimique peroxide mumashanyarazi, bigatuma urunigi rwa molekile ya polypropilene rumeneka kandi rukagabanya uburemere bwa molekile. Ugereranije nubundi buryo bwo gutesha agaciro, bufite ibyiza byo kwangirika kwuzuye, amazi meza ashonga, inzira yoroshye kandi ishoboka, kandi biroroshye gukora umusaruro munini winganda. Ubu kandi nuburyo bukoreshwa cyane nabakora plastike yahinduwe.
Ibisabwa ibikoresho
Ahantu ho gushonga haratandukanye rwose nibikoresho bisanzwe byo guhindura PP. Ibikoresho byo gutera ibikoresho bishongeshejwe bisaba igipimo kirekire, kandi umutwe wimashini ugomba kuba uhagaritse cyangwa ugakoresha amazi yo mu mazi (Wuxi Huachen afite gutema amazi nkaya); Ibikoresho biroroshye cyane kandi bigomba guhura namazi ako kanya nyuma yo kuva mumutwe wimashini kugirango bikonje byoroshye;
Kugirango habeho umusaruro wa polypropilene usanzwe, umuvuduko wo gukata wa extruder ni metero 70 kumunota, mugihe kuri polypropilene yashonga cyane, umuvuduko wo gukata urasabwa kuba hejuru ya metero 120 kumunota. Byongeye kandi, kubera umuvuduko mwinshi wa polypropilene ushonga, intera ikonje igomba kwiyongera kuva kuri metero 4 ikagera kuri metero 12.
Imashini yo gukora ibikoresho byashongeshejwe bisaba guhora mesh ihinduka, mubisanzwe ukoresheje sitasiyo ebyiri. Imbaraga za moteri zisabwa cyane, kandi ibyuma byinshi bizakoreshwa imbere mubice bya screw; Ku bwa Koyapan, umurongo w'impanga zakozwe mu gushonga ibikoresho bidasanzwe bifite umwihariko.
1. Kureba neza kugaburira neza (PP, DCP, nibindi);
2. Kugaragaza igipimo gikwiye hamwe nu mwanya wa axial yo gufungura ukurikije igice cya kabiri cyubuzima bwa formulaire (byahindutse kugeza ku gisekuru cya gatatu kugirango habeho gusohora neza reaction ya CR-PP);
3. Kugenzura niba urutoki rushonga rufite umusaruro mwinshi murwego rwo kwihanganira (imirongo irenga 30 yarangije ifite igiciro cyinshi kandi cyiza cyo kuvanga ugereranije na cumi gusa);
4. Imitwe idasanzwe yimyanda igomba kuba ifite ibikoresho. Gushonga no gushyushya bigomba kuba bimwe, kandi imyanda igomba kuba mike;
5. Nibyiza ko hashyirwaho ibikoresho bikonjesha bikonje bikonjesha ibikoresho byashongeshejwe (bifite izina ryiza mu nganda) kugirango harebwe ubuziranenge bwibice byarangiye kandi igipimo cyo hejuru;
6. Byaba byiza kurushaho niba hari ibitekerezo byo kugerageza kumurongo. Mubyongeyeho, kongeramo abatangizi bangirika kumazi yo kugaburira kuruhande bisaba ubunyangamugayo bukabije kubera umubare muto winyongera. Kubikoresho byo kugaburira kuruhande, nka Brabenda yatumijwe hanze, Kubota, Matsunai ikorerwa mu gihugu, nibindi.
Kugeza ubu ikoreshwa rya catalizaires
: Okiside ikomeye, yaka, igereranije neza mubushyuhe bwicyumba, ntabwo yunva ingaruka.
2: Kabiri inshuro ebyiri sulfurizer, mu magambo ahinnye yitwa DBPH, izina ryimiti 2,5-dimethyl-2,5-bis (tert butylperoxy) hexane, uburemere bwa molekile 290.44. Amazi yumuhondo yijimye afite ubucucike bwa 0.8650 muburyo bwijwi nifu y amata yera. Ingingo yo gukonjesha ni 8 ℃. Ingingo yo guteka 50 ~ 52 ℃ (13Pa). Igipimo cyo guhindagurika kiri hagati ya 1.418 na 1.419. Ubukonje bwamazi ni 6.5mPa. s. Flash point (fungura igikombe) 58 ℃. Gukemuka mumashanyarazi menshi nka alcool, ethers, ketone, esters, hydrocarbone ya aromatic, nibindi, bidashonga mumazi.
3: Gupima intoki zahujwe
Ikizamini cyo gushonga urutoki kigomba gukorwa hakurikijwe GBIT 30923-2014 Polypropilene Melt Spray Ibikoresho byihariye; Ibikoresho bisanzwe bishonga urutoki ntibishobora kugeragezwa. Gushonga cyane bivuga gukoresha uburyo bwa volumetric aho gukoresha uburyo rusange bwo kwipimisha.
Ibikoresho byo mu rugo birimo Chengde Youte, Ikoranabuhanga rya Guangxin, Hangzhou Jinmai, Uruganda rwa Jilin Science and Education Instrument Factory, kandi ibikoresho byatumijwe mu mahanga birimo Zwick; Shira ibikoresho bidasanzwe. Ikizamini cyo gupima ni (500-2500) cm / 10min.
Kuri ubu, hari:
1. Shandong Daoen Polymer Materials Co., Ltd.
2. Hunan Shengjin Ibikoresho bishya Co, Ltd.
3. Jinfa Technology Co., Ltd.
4. Beijing Yishitong Ibikoresho bishya biteza imbere Co, Ltd.
5. Shanghai Huahe Composite Materials Co., Ltd.
6. Hangzhou Chenda Ibikoresho bishya Co, Ltd.
7. Basel, Dalin, Koreya y'Epfo
Igihe cyo kohereza: Apr-01-2024