Uburyo bwo kongera ubwiza bw'ubukorikori n'ubukorikori hakoreshejwe ifu ya PVA

Ifu ya PVA ikora nk'ikintu gikomeye gihuza ibintu. Yongera cyane imbaraga zo guhuza ibintu, ubushobozi bwo kola, no kwirinda amazi mu mvange zishingiye kuri sima. Kongeramo ifu ya PVA birema urusobe rwa polymeri rwa microscopic. Uru rusobe ruhuza ibintu byombi ndetse n'urusobe rw'ibintu. Rukemura impamvu nyamukuru zitera ibibazo bisanzwe: kudafata neza ibintu, gukurura ivumbi ku buso, gusenyuka. Umucuruzi wizewe w'Ubushinwa PVA ifu ya polyvinyl alcohol yo mu bwoko bwa Adhesive / Mortar itanga ubwiza ukeneye. Koresha ifu ya PVA neza kugira ngo ubone ibisubizo birambye kandi byiza.

Ibintu by'ingenzi byakunzwe

· Ifu ya PVAikora urusobe rwa polymer ruhuza uduce twa sima cyane.
· Birinda ivumbi ryo hejuru kandi bigabanya imiyoboro igabanuka mu gishishwa.
· Shyiramo ifu ya PVA iri hagati ya 0.3% na 0.5% mu mvange yumye kugira ngo ubone umusaruro mwiza.

Ifu ya PVA ni iki kandi ikora ite?

Ifu ya PVA, cyangwa inzoga ya polyvinyl, ni polymeri ishongesha mu mazi. Uzayisanga mu bikoresho byinshi by'ubwubatsi. Iyi fu nziza yera ishongesha mu mazi kugira ngo ikore umuti usobanutse kandi ukoreshwa mu buryo butandukanye. Abakora bayikora mu byiciro bitandukanye. Buri cyiciro gitanga imiterere itandukanye ku mikoreshereze yihariye. Ushobora guhitamo ifu ishongesha ku bushyuhe bw'icyumba cyangwa ikeneye amazi ashyushye arenze 95°C. Uku guhinduka gutuma ifu ya PVA igira agaciro mu nganda nyinshi.

Imiterere y'ingenzi y'ifu ya PVA

Ifu ya PVA ifite imiterere myinshi itangaje. Ikora firime zikomeye kandi zibonerana kandi zifite imbaraga nyinshi za mekanike. Izi firime zirwanya ibishongesha, amavuta, no kwangirika. Polima kandi ikora nk'imashini nziza cyane igabanya ubushyuhe n'ituma ihora ihindagurika. Uzashimishwa no kuba ihora ihindagurika mu bushyuhe. PVA iguma ihamye munsi ya 40°C kandi iragabanuka gusa iyo ubushyuhe buri hejuru. Irabora hejuru ya 220°C, bituma ikoreshwa mu bwubatsi bwinshi.

Uburemere bw'ibisubizo bya PVA burahinduka uko byateganyijwe. Ushobora kugenzura iki gipimo binyuze mu gupima no gushyuha. Imbonerahamwe iri hepfo igaragaza uburyo ibi bihinduka bigira ingaruka ku gisubizo:

Uburyo bwo gukora mu mivange ya mortar na adhesive

Iyo wongeyeho ifu ya PVA mu mvange y'imvange, irashonga mu gihe cyo kuvanga. Iminyururu ya polymer ikwirakwira mu gice cyose cy'amazi. Uko imvange ikira, amazi arashira. Iminyururu ya PVA ikora firime ikomeza. Iyi firime ikora urusobe ruto ruzenguruka uduce twa sima n'ibindi birunga. Urusobe rukora nk'ikiraro. Ruhuza ibintu bidafite umwimerere hagati yabyo n'ubuso bw'ubutaka.

Uru rusobe rwa polymer rutuma ibintu bifatana neza cyane. Rwuzuza imyenge mito n'ibidakora neza ku gice cy'ubutaka. Uru rusobe kandi rwongerera ubushobozi bwo koroherwa n'amazi mu gihe cyo gushonga. Ubona uburyo bwo kubika amazi neza mu gihe cyo gushonga. Ubu buryo butuma amazi yumuka vuba kandi bukagabanya guhungabana. Ibi bituma habaho ubufatanye bukomeye kandi burambye. Kugira ngo ubone ubuziranenge buhamye, ugomba gushaka ifu ya polyvinyl alcohol yo mu Bushinwa yizewe yo mu bwoko bwa Adhesive / Mortar. Ibicuruzwa byabo bitanga umusaruro ushoboka muri buri gice.

Gukemura ibibazo bisanzwe byo gufatana n'ibirungo hakoreshejwe ifu ya PVA

Gukemura Ingufu Zidakomeye z'Ubufatanye n'Igabanuka ry'Umubano

Ubukana buke bw'imigozi butuma amatafari acika kandi amashusho agatandukana n'urukuta. Ubona iki kibazo kenshi iyo ukoresheje substrates zikomeye cyangwa zoroshye. Kole ntishobora gufata neza ubuso.Ifu ya PVAIkemura iki kibazo mu buryo butaziguye. Ikora umuyoboro wa polymeri imbere mu mvange. Uyu muyoboro uhuza icyuho kiri hagati y’umugozi n’umuyoboro. Yuzuza utwenge duto kandi igatuma habaho uburyo bukomeye bwo guhuza ibintu.

Ushobora gupima iterambere ry'imbaraga z'imigozi ukoresheje ikizamini cyoroshye. Ikizamini cyo kugereranya kitaziguye hagati y'umugozi w'itara n'umugozi wahinduwe kigaragaza ibisubizo bisobanutse. Umugozi w'itara ugizwe na 0.3% HPMC. Umugozi wahinduwe ugizwe na 0.15% HPMC hamwe na 0.5% PVA 17-88. Ingufu z'umugozi w'umugozi w'umuvuduko ...

Kurinda ivumbi no gushonga hejuru

Gusukura ivumbi ku butaka bituma sima irangiye isa n'aho idafite imbaraga kandi idakora neza. Unyuza ikiganza cyawe hejuru y'ubutaka ugasanga ifu ifunguye. Iki kibazo kibaho iyo sima idafite imbaraga zihagije zo gufatana. Uduce duto two hejuru ntituba dufatanye. Ifu ya PVA irinda iki kibazo. Ikora firime ikomeye uko sima ikira. Iyi firime izunguruka uduce two hejuru ikadufunga aho duherereye. Iyi firime kandi yongera ubucucike bw'ubuso. Ubona irangi ryiza kandi rikomeye rirwanya kwangirika. Fima ya polymer igumaho nubwo sima yumye burundu. Ubuso bwawe bwa nyuma ntibuzavaho ivumbi cyangwa ingwa uko igihe kigenda.

Kugabanya imiyoboro igabanuka no kunoza uburyo bworoshye bwo koroshya

Imyanya igabanuka igaragara iyo sima itakaje amazi vuba cyane. Sima irafungana, kandi stress itera imivuniko. Iki kibazo gica intege imiterere kandi kikemerera amazi kwinjira. Ifu ya PVA igufasha kwirinda ibi. Ituma amazi agumana neza mu gihe cyo kuyitunganya. Sima iguma itose igihe kirekire, ibi bigabanya ibyago byo kuma vuba. Filimi ya polymeri kandi yongera ubushobozi bwo koroshya matrix ikomeye. Sima ihinduka ishobora kugendana n'ubutaka. Ishobora guhangana n'impinduka nto n'ubushyuhe idacitse. Ubona ibikoresho biremereye kandi bikora neza mu bihe bigoye.

Kongera Ubudahangarwa bw'Amazi no Kuramba

Amazi yangiza morti isanzwe uko igihe kigenda. Imikorere yo gukonjesha no gushonga itera kwangirika gukomeye. Amazi yinjira muri morti, agakonjesha, akaguka, kandi agaca ibintu. Ugomba kurinda akazi kawe kuri ubu bwoko bw'ibitero. Ifu ya PVA ituma morti yawe idapfa amazi. Agapapuro ka polymeri kaba nk'uruzitiro. Bigabanya ingano y'amazi ashobora kwinjira muri morti. Ubu burinzi butuma mortiyo ikomera mu mikorere myinshi yo gukonjesha no gushonga.

Imbonerahamwe iri hepfo igaragaza itandukaniro rigaragara mu mikorere ya firigo no gushonga:

Mortoire yahinduwe irimo inyongeramusaruro za polymer nka PVA ibasha kwihanganira imikorere 300 nta kwangirika. Mortoire isanzwe inanirwa nyuma y'imikorere 50 kugeza ku 100 gusa. Ushobora kubona iterambere rikomeye mu kuramba. Ibi bivuze ko akazi kawe kamara igihe kirekire mu bihe by'ubukonje. Nanone ugabanya ibyago byo gusana bihenze nyuma. Kugira ngo ubone umusaruro mwiza, shaka ibikoresho byawe ubikuye ku mucuruzi wizewe wa PVA ifu ya polyvinyl alcohol yo mu Bushinwa yo Gufata neza / Gutera. Ubwiza bw'ifu ya PVA bugira ingaruka ku kuramba kwa nyuma kw'imvange yawe.

Inama z'ingirakamaro zo gukoresha ifu ya PVA

Kubona Igipimo cy'Imvange Ikwiye

Igipimo gikwiye cyaIfu ya PVAKugira ngo uruvange rwume rugenzure umusaruro wawe wa nyuma. Ugomba guhindura ingano ukurikije uko warukoresheje. Ku matiles ateye, ongeramo ifu ya PVA iri hagati ya 0.3% na 0.5% ukurikije uburemere bw'uruvange rwumye rwose. Uru rugero ruguha uburinganire bwiza bwo gufatana no koroha. Ku mabaraza n'amaplasta, koresha 0.2% kugeza 0.4%. Ku ma plasta no gusana mortiers, ongera ingano kugeza kuri 0.5% kugeza 1.0%. Ibipimo byinshi byongera ubushobozi bwo kudakoresha amazi no koroha. PVA nyinshi ishobora kugabanya igihe cyo gushyiraho. Buri gihe banza ugerageze igice gito. Pima ifu ya PVA ukoresheje igipimo nyacyo. Ntugatekereze ingano. Ibipimo bihoraho bivuze ibisubizo bihoraho kuri buri mushinga.

Intambwe ku yindi y'ubuyobozi bwo kuvanga no gukoresha

Kurikiza izi ntambwe kugira ngo utegure mortier cyangwa kole yahinduwe na PVA nziza cyane:

1. Tangira uvanze neza n'uruvange rwawe rwumye. Vanga sima, umucanga, n'ibindi bikoresho mu gikoresho gisukuye.

2. Shyiramo ifu ya PVA ku bice byumye. Kangura neza kugira ngo ifu ikwirakwizwe neza mu mvange yose.

3. Pima amazi akenewe. Ingano iterwa n'uko washyizeho n'urwego rwa PVA wahisemo.

4. Shyiramo amazi buhoro buhoro mu mvange yumye. Vanga buri gihe ukoresheje imashini ivanga cyangwa ukoresheje intoki.

5. Vanga iminota 3 kugeza kuri 5 kugeza igihe ubonye ifu imeze neza kandi ingana. Reka ifu ihagarare iminota 2.

6. Ongera uvange umunota 1. Imvange yawe ubu yiteguye gukoreshwa.

7. Shyira imvange mu gihe cyayo cyo gukora. Imvange zahinduwe na PVA zifite ubuzima nk'ubw'inkono zisanzwe.

8. Sukura ibikoresho byawe n'amazi ako kanya nyuma yo kubikoresha. Agapira k'imashini ka PVA kimutse biragoye kubikuraho.

Amabwiriza y'ingenzi yo kwirinda n'amakosa asanzwe yo kwirinda

Amakosa menshi ashobora kwangiza imvange yawe yahinduwe na PVA. Irinde aya makosa asanzwe kugira ngo ubone umusaruro mwiza:

· Ntukigere wongeramo ifu ya PVA mu mazi mbere na mbere. Ibi bitera gushonga. Buri gihe banza uvange ifu n'ibintu byumye.
· Ntugakoreshe amazi menshi. Amazi menshi agabanya icyuma cya polymer. Ibi bigabanya imbaraga za nyuma n'ubudahangarwa bw'amazi bwa mortiweri yawe.
· Irinde kuvanga mu bihe bishyushye cyane cyangwa bikonje cyane. Ubushyuhe bukabije bugira ingaruka ku gushonga no kurema kwa polimeri ya PVA.
· Ntukavange PVA n'ibisigazwa bikomeye cyangwa imiti ihumanya. Ibi bintu bishobora kwangiza polymer no kwangiza imikorere yayo.
· Bika ifu ya PVA neza. Ubushuhe bwinshi butuma ifu yinjiza ubushuhe. Ibi bituma habaho uduce dukomeye, kugabanuka k'ubushyuhe, no kugabanuka k'ubukorikori. Ugomba kubika ifu ya PVA ahantu hakonje kandi humutse hagati ya 5°C na 30°C. Buri gihe komeza ufunze neza. Koresha imiti yo gusukura kugira ngo urusheho kuyirinda. Niba ubonye uduce dukomeye, umuhondo, cyangwa impumuro idasanzwe, PVA iba yangiritse. Ntukayikoreshe.

Uburyo bwa tekiniki busobanura impamvu kubika ibintu ari ingenzi. Ubushuhe bwinshi butuma PVA yinjiza ubushuhe, bigatera kubyimba no gutakaza imiterere ya mashini. Ubushuhe buke bwuma ibikoresho, bigagabanya ubworoherane n'ubuziranenge. Ubushyuhe bwinshi bwihutisha kwangirika kwa polymer. Ubushyuhe buke butera kwangirika. Ahantu hagenzurwa kandi hahamye harinda igihe ifu yawe ya PVA imara n'imikorere yayo.

Gushaka ifu nziza ya PVA ivuye ku mucuruzi w'Ubushinwa PVA ifu ya polyvinyl alcohol yo gushyiramo Adhesive / Mortar

Ubwiza bw'ifu ya PVA yawe ni bwo bugena imikorere ya nyuma ya mortilage yawe. Ukeneye umucuruzi wizewe. Umucuruzi wizewe w'Umushinwa PVA ifu ya polyvinyl alcohol yo mu bwoko bwa Adhesive / Mortar itanga serivisi nziza kandi zihamye ku mishinga yawe.

Shaka abatanga serivisi bafite ibyangombwa by'ingenzi by'ubuziranenge. Ibi byemezo bigaragaza ko uruganda rukurikiza amahame y'ubuziranenge n'umutekano mu buryo buhamye:

Ibigo bigomba kubahiriza amabwiriza ya REACH mu gihe cyo kohereza PVA mu muryango w’ubumwe bw’ibihugu by’Uburayi. Aya mategeko yemeza ko ibi biyobyabwenge bifite umutekano ku buzima bw’abantu no ku bidukikije. Kwemererwa na FDA ni ngombwa ku isoko rya Amerika. Bigenzura ko ibi bicuruzwa byujuje ibisabwa mu mutekano no mu mikorere myiza.

Umucuruzi mwiza w’umushinwa witwa PVA powder polyvinyl alcohol yo mu bwoko bwa Adhesive / Mortar, anakurikiza uburyo bwiza bwo kubika no gukoresha. Babika ifu ahantu hagenzurwa. Bakoresha ipaki ifunze neza hamwe n’impapuro nyinshi za kraft hamwe n’impapuro za PE. Bakoresha FIFO mu gucunga ububiko kugira ngo barebe ko ari nshya. Iyo wakiriye ibicuruzwa byawe, reba niba byangiritse. Bika amafu mu bubiko bukonje kandi bwumye. Bika kure y’izuba ryinshi, amasoko y’ubushyuhe, n’ibindi bintu byanduza imiti. Ubu buryo butuma ifu ya PVA igumaho kandi igakora neza.

Ifu ya PVA ihindura imvange idakomeye kandi ishaje ikayihinduramo kole ikomeye kandi iramba. Urushaho gufatana, ukagabanya gucikamo ibice, kandi ugakomeza kwirinda amazi. Kugabanya ikiguzi byageze kuri 20% ku kole na 22% ku kole, umusaruro ukaba ungana na 15% na 18%. Shyira izi nama uyu munsi. Hitamo umucuruzi wizewe wo mu Bushinwa PVA ifu ya polyvinyl alcohol yo mu bwoko bwa Adhesive / Mortar.

Ibibazo Bikunze Kubazwa

Ni ifu ya PVA ingana iki ngomba kongeramo mu mvange yanjye ya morti?

Ongeraho 0.3% kuri 0.5%Ifu ya PVAUkurikije uburemere bw'uruvange rw'umusemburo rw'amatafari. Hindura ingano ukurikije uko wakoresheje.

Ese nshobora kuvanga ifu ya PVA n'amazi?

Oya. Banza uvange ifu ya PVA n'ibikoresho byumye. Kuyishyira mu mazi bitera gufungana no kugabanya imbaraga za nyuma zo gufatana.

Mortoli yahinduwe na PVA imara igihe kingana iki ikora?

Ugomba gukoresha uruvange mu minota 30 kugeza kuri 60 nyuma yo gutegura. Iki gihe gihuye n'igihe cy'inkono y'uruvange rusanzwe.