Vuba aha, ibikoresho bya mask byitabiriwe cyane, kandi abakozi bacu ba polymer ntabwo babujijwe muri iyi ntambara yo kurwanya icyorezo. Uyu munsi tuzamenyekanisha uburyo ibikoresho bya PP byashongeshejwe.
Isoko ryisoko ryo gushonga cyane PP
Gushonga kwa polypropilene bifitanye isano rya hafi nuburemere bwa molekile. Uburemere buringaniye bwa molekuline yubucuruzi bwa polypropilene yubucuruzi yateguwe na sisitemu isanzwe ya Ziegler Natta ya catalitiki isanzwe iri hagati ya 3 × 105 na 7 × 105. Indangantego yo gushonga yibi bisigazwa bya polypropilene isanzwe ni mike, ibyo bikaba bigabanya aho bikoreshwa.
Hamwe niterambere ryihuse ryinganda za fibre chimique ninganda zimashini zidoda, inganda zidoda zidoze zazamutse vuba. Urukurikirane rwibyiza bya polypropilene bituma ruba ibikoresho byibanze byimyenda idoda. Hamwe niterambere ryumuryango, imirima ikoreshwa yimyenda idoda ikunda kuba yagutse: mubijyanye n'ubuvuzi n'ubuzima,imyenda idodairashobora gukoreshwa mugukora amakanzu yo kwigunga, masike, amakanzu yo kubaga, ibitambaro by'isuku by'abagore, impuzu z'abana, n'ibindi; Nka nyubako nibikoresho bya tekiniki, imyenda idoda irashobora gukoreshwa mugukingira amazi hejuru yinzu, kubaka umuhanda, hamwe n’imishinga yo 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 mu iterambere mu myenda idoda, ishobora gukoreshwa mu kuyungurura gaze n’amazi mu nganda nk’imiti, imiti, n’ibiribwa, kandi ifite isoko rikomeye ku isoko; Byongeye kandi, imyenda idoda irashobora gukoreshwa mugukora uruhu rwubukorikori, imifuka, imyenda yimyenda, imyenda yo gushushanya, no guhanagura imyenda mubuzima bwa buri munsi no gukoresha urugo.
Bitewe niterambere ridahwema ryimyenda idoda, ibisabwa kugirango bikorwe kandi bishyirwe mu bikorwa bigenda byiyongera, nko gushonga, kubyara umuvuduko mwinshi, nibicuruzwa bito. Kubwibyo, ibisabwa mubikorwa byo gutunganya polipropilene resin, ibikoresho fatizo byimyenda idoda, nabyo byiyongereye; Byongeye kandi, kubyara fibre yihuta cyane cyangwa fibre nziza ya polipropilene irasaba kandi polipropilene resin kugira imiterere myiza yo gutemba; Ibibara bimwe bidashobora kwihanganira ubushyuhe bwinshi bisaba gutunganya polypropilene nkuwitwara mubushyuhe buke. Ibi byose bisaba gukoresha ultra-high melt index polypropylene resin nkibikoresho fatizo bishobora gutunganywa mubushyuhe buke.
Ibikoresho bidasanzwe kumyenda ya meltblown nigipimo kinini cyo gushonga polypropilene. Icyerekezo gishonga bivuga ubwinshi bwibintu byashongeshejwe binyura muri capillary isanzwe ipfa buri minota 10. Ninini agaciro, niko gutunganya ibintu neza. Iyo urwego rwo hejuru rwo gushonga rwa polypropilene, fibre nziza irasohoka, kandi nuburyo bwiza bwo kuyungurura imyenda yakozwe.
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 gukoresha uburyo bwo kongera ubukana bwa inhibitor nka hydrogène kugirango ugabanye uburemere bwa molekile ya polymer, bityo byongere igipimo cyo gushonga. Ubu buryo bugarukira kubintu nka catalitike ya sisitemu nuburyo bwo kubyitwaramo, bigatuma bigora kugenzura ituze ryikigereranyo no gushira mubikorwa.
Yanshan Petrochemical yagiye ikoresha catalizike ya metallocene mugukoresha polymerisation itaziguye yibikoresho byashongeshejwe hamwe nigipimo cyo gushonga kirenga 1000 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 kugabanuka kwangirika kwa polypropilene ya elegitoroniki y’ikoranabuhanga ryakozwe mu mwaka wa 2010 kugira ngo habeho polipropilene yashongeshejwe imyenda idasanzwe idoda imyenda idasanzwe ku ya 12 Gashyantare. Muri icyo gihe, ibizamini by'inganda byakorewe ku gikoresho hakoreshejwe catalizike ya metallocene. 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 igipimo cyayo.
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, kubora 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 bwakoreshejwe buhoro buhoro.
Umusaruro wo hejuru ushonga PP ukoresheje uburyo bwo kwangiza imiti
Uburyo bwo kwangiza imiti burimo gukora polypropilene hamwe nubumara bwangiza nka chimique peroxide mumashanyarazi, bigatuma iminyururu ya molekile ya polypropilene ivunika kandi igabanya uburemere bwa molekile. Ugereranije nubundi buryo bwo gutesha agaciro, bufite ibyiza byo kwangirika kwuzuye, gutembera neza gushonga, hamwe nuburyo bworoshye bwo gutegura, byoroshye gukora umusaruro munini winganda. Ubu kandi nuburyo bukoreshwa cyane nabakora plastike yahinduwe.
Ibisabwa ibikoresho
Ingingo yo gushonga cyane bivuga ibikoresho bitandukanye rwose nibikoresho bisanzwe byo guhindura PP. Ibikoresho bikoreshwa mu gutera ibikoresho bishongeshejwe bisaba igipimo kirekire kandi n'umutwe wa mashini ihagaritse, cyangwa ugakoresha amazi yo mu mazi (Wuxi Huachen afite gukata nk'amazi); Ibikoresho biroroshye cyane kandi bigomba guhura namazi ako kanya nyuma yo kuva mumutwe wimashini kugirango bikonje byoroshye;
Umusaruro wa polypropilene usanzwe usaba umuvuduko ukabije wa metero 70 kumunota, mugihe polypropilene yo gushonga isaba umuvuduko wa metero zirenga 120 kumunota. Byongeye kandi, kubera umuvuduko wihuta wa polypropilene ushonga cyane, intera yo gukonjesha nayo igomba kongerwa kuva kuri metero 4 ikagera kuri metero 12.
Imashini yo gukora ibikoresho byashongeshejwe bisaba guhora mesh ihinduka, mubisanzwe ukoresheje sitasiyo ebyiri. Imbaraga za moteri zirasabwa cyane, kandi nibindi byinshi byo gukata bikoreshwa mubice bya screw;
1 ： Kugenzura neza kugaburira ibikoresho nka PP na DCP;
2 Kugena igipimo gikwiye hamwe nu mwanya wa axial yo gufungura ukurikije igice cya kabiri cyubuzima bwa formulaire (yahindutse kugeza ku gisekuru cya gatatu kugirango habeho gusohora neza reaction ya CR-PP);
3 ： Kugirango habeho umusaruro mwinshi wintoki zashongeshejwe murwego rwo kwihanganira (imirongo irenga 30 yarangiye ifite igiciro cyinshi-cyiza kandi kivanze ugereranije nimirongo icumi gusa);
4 head Imitwe idasanzwe yo mumazi yo mumazi igomba kuba ifite ibikoresho. Gushonga nubushyuhe bigomba kugabanwa neza, kandi imyanda igomba kuba mike;
5 ： Birasabwa guha ibikoresho bikonjesha bikuze kubikoresho byashonze (bifite izina ryiza mu nganda) kugirango harebwe ubwiza bwa granules zuzuye kandi n’umusaruro mwinshi;
6 ： Niba hari ibitekerezo byerekana kumurongo, byaba byiza kurushaho.
Mubyongeyeho, uwatangije gutesha agaciro yongewe kumpande kuruhande hamwe namazi bisaba ubunyangamugayo buhanitse kubera igipimo gito cyiyongereye. Kubikoresho byo kugaburira kuruhande nka Brabenda, Kubota, hamwe na Matsunaga ikorerwa mu gihugu.
Igabanuka rya catalizator ikoreshwa muri iki gihe
1: Di-t-butyl peroxide, izwi kandi nka di tert butyl peroxide, uwatangije a na volcanizing agent dTBP, ni ibara ritagira ibara ryumuhondo ryoroheje rifite ibara ridashobora gushonga mumazi kandi ntirishobora gukoreshwa numuti ukomoka kuri benzene, toluene, na acetone. Okiside cyane, yaka, igereranije neza mubushyuhe bwicyumba, itumva ingaruka.
2: DBPH, mu magambo ahinnye nka 2,5-dimethyl-2,5-bis (tert butylperoxy) hexane, ifite uburemere bwa molekile ifite 290.44. Amazi yumuhondo yoroheje, andika nka hamwe nifu yifu yifu, hamwe nubucucike bwa 0.8650. Ingingo yo gukonjesha 8 ℃. Ingingo yo guteka: 50-52 ℃ (13Pa). Igipimo cyerekana 1.418 ~ 1.419. Amazi yijimye ni 6.5 mPa. s. Flash point (fungura igikombe) 58 ℃. Gushonga mumashanyarazi menshi nka alcool, ethers, ketone, esters, na hydrocarbone ya aromatic, idashobora gushonga mumazi.
3: Ikizamini cyo gushonga urutoki
Ikizamini cyo gushonga urutoki kigomba gukorwa hakurikijwe GB / T 30923-2014 Polypropilene Melt Spray Ibikoresho byihariye; Abapima urutoki rusanzwe ntibashobora kugeragezwa. Ingingo yo gushonga cyane bivuga gukoresha uburyo bwijwi aho gukoresha uburyo rusange bwo kwipimisha.
Dongguan Liansheng Ntabwo Yubatswe Ikoranabuhanga Co, Ltd.yashinzwe muri Gicurasi 2020.Ni uruganda runini rutunganya imyenda idoda ihuza ubushakashatsi niterambere, umusaruro, no kugurisha. Irashobora gutanga amabara atandukanye ya PP spunbond idoda idoda ifite ubugari buri munsi ya metero 3.2 kuva kuri garama 9 kugeza kuri garama 300.
Igihe cyo kohereza: Ugushyingo-08-2024