PVA iglu - kuqamba. iimpawu zobugcisa le ngcina

Ukuba ufuna into lihlale ndawonye, okokuqala zonke becinga PVA iglu ixhaphakileyo. Iyafumaneka kwikhaya kunye ofisi zonke, isetyenziswa kuphela lib, iphepha elingenanto kodwa kwishishini lokwakha. Makubulelwe kulwakhiwo lwalo elula, likuvumela ukuba utshintshe ukusetyenziswa ngokuqaliswa kwezithako ezizodwa.

A incinane

Emva ngo-1912 i-Klatt German wakwazi ukuba baphume irhasi iasithilini IVinyl acetate. I-arhente entsha polymerization waba ancamathelayo. Kodwa nje ngaphambi kweMfazwe Yehlabathi II American Farben waseka imveliso yorhwebo lwe PVA glue.

Kwiminyaka emine emva koko, IsiKorean, ukuqhuba uphando oluzimeleyo ifumana Vinalon, olusekelwe Polyvinyl utywala. Ukususela PVA iglu, ixabiso yayo ngaphantsi kwezinye yokuncamathelisa ezininzi, isasazeke ehlabathini lonke.

Ngomhla kummandla elalisakuba yiSoviet Union ukuya kwimveliso ubunzima PVA iqale yoma ekuqaleni kwenkulungwane yamashumi amabini Severodonetsk (kummandla Lugansk). oomakhulu yethu khumbula ukuba phambi yezemisebenzi isifundo esikolweni kuncanyatheliswe iphepha usebenzisa kulu enegama engaqhelekanga "ngomngampunzi". Kwaye kule minyaka enzima emva kwemfazwe ye le ngcina olulungiswe ekhaya okanye namazambane starch okuphekiweyo.

Kwaye ngoku ukucinga ukuba njani kunokwenzeka ukuba phelisa PVA glue.

PVA glue: Ukucacisa

Oku elincomekayo kwaye babe iindlela ukusoloko iye iipropati ezininzi ezibalulekileyo. amandla alo ngcina 450 N / m. Ngenxa nezimo kunye ukufana lisetyenziswa kwi umaleko obhityileyo leyo iba ezingabonakaliyo emva kokuba yaphuse. Iphepha silinganiswa PVA, zingalula kruthu, emva kokuba yaphuse ayithethi kuyaphula.

A plus enkulu na non-ziyityhefu kwaye non-LINGATSHA, evumela ukuba isetyenziswe abantwana eklasini nasekhaya. Hayi ivumba strong zakhutshwa ngexesha ukusetyenziswa iglu, akuyongozi. Zonke iintlobo kulu, ngaphandle PVA-K (stationery), ukumelana ukukhenkcisa izihlandlo ezine ngaphandle kokulahleka kweepropati. Ukuba kuyimfuneko, oko bungxengwe emanzini okanye kwezinye izinyibilikisi, umz, acetone. Iyoma ixesha kuxhomekeke Ebubanzini ezikroziswayo ayidluli iiyure ezingama-24.

noseko lwalo ulwelo ivumela ukungena kwezithako ezahlukeneyo kwi-PVA kulu, ukwakhiwa kweengongoma ezahlukileyo ze leyo iyahluka oko ngendlela efunekayo. Ngoko ke imihlanganisela emitsha ngcina ukusoloko sele ziphuhlisiwe.

imihlobo PVA

Esebenzisa ukongeza eyandisiweyo umda lo ingcina PVA.

Sibala ukweyona yosetyenziso:

• application abendlu (ekwakheni iphepha elingenanto);
• sebenzisa ukulilungisa (Wallpapering, ilinoliyam);
• ufakelo tiles ceramic;
• isicelo kwishishini lokwakha njengoko kudla.

Inkcazelo yeendidi glue

Zokubhala PVA ngcina, apho ukwakheka iqulathe akukho ongeziweyo eziyityhefu esetyenzisiweyo kwiphepha lib, ubuchule zabantwana. Ngenxa yokungabikho izinyibilikisi ngaphandle kwamanzi, akuyongozi ebantwaneni, inokusetyenziswa ngaphakathi ngaphandle itshimini.

Kwibakala uqhelekileyo PVA - jikelele. It has a umda esibanzi isicelo. Bangakwazi njo china, iglasi nephepha. Idityaniswa primer, putty kwi nokulungiswa kwezakhiwo, ukuphucula iipropati ayikokubambana ngendlela.

Household PVA esetyenziselwa wallpapering, iphepha enzima. Lubonakala yi ukuxhathisa eliphezulu iqabaka.

PVA iglu uzinzo super viscous ngenxa plasticizers ngoko kusetyenziswa yeethayile kwamanani, iplastiki, intsimbi. main isicelo Its - ishishini lokwakha.

PVA iglu samagama iye ukuqina ukufuma osetyenziswa odibanisa izinto ngamaplanga.

Enye oluthandwa glue - PVA "Moment". Lubonakala yi impahla yalo imiphezulu nisondelelane lwephanyazo ngaphandle imikhosi zokhuseleko ngokucindezela. Ingasetyenziswa ukuba ilungisa laminate, parquet kunye nezinye iindawo.

Ingakumbi ezinye iintlobo ze PVA

Building PVA isetyenziswa kuphela xa self-ngcina, kodwa kwisi iintlobo zezixhobo zokwakha. Igama elilungileyo iglu yokwakha - ukuchithachitheka Polyvinyl acetate homopolymer. Ngenxa lexinene ukwakhiwa iglu yokwakha isicelo kunye nesimbo. A imiphezulu ekwakheni ubuhlobo kufuneka ngocoselelo icocwe ukusuka eluthulini kunye degrease.

PVA iglu, ukwakhiwa kweengongoma ezahlukileyo ze equka plasticizer akufunekanga zipholile ngezantsi degrees zero, kungenjalo uya kuphulukana iipropati yayo. Ngelo xesha, le ngcina ayiqulathanga ongeziweyo ezinjalo, unako ukumelana iqabaka izidanga mane ngaphandle kokulahlekelwa iimpawu zayo enamathelayo emva thawing. Xa yomile ifilim abunjwe, kufuneka lisuswe, yaye ingqimba ixutywe kumphezulu enamathelayo abaninzi. Ukuthintela iglu yomile, igcinwe kwimigqomo sivalisisekile ngalo lonke ixesha.

PVA glue: Ukubunjwa

Khawucinge ngeekhomponenti asisiseko ezidityaniswe le ngcina ukutshintsha iipropati yayo ngcina. Ezi okubonakalayo ziyongezwa zikwinqanaba yemveliso kwaye yahlulwe maqela alandelayo:

• yokuncamathelisa;
• pende;
• plasticizers;
• fillers;
• hardeners;
• ekwenzeni.

Umlinganiselo macandelo angentla kwaye undomelezayo iipropati enqwenelekayo iintlobo ezahlukeneyo glue.

Yokuncamathelisa, eziquka starch kunye nentlaka Ukwakhiwa adlulisele amandla kwi xhulumaniso.

Njengoko isinyibilikisi esetyenzisiweyo, acetone, benzene, kunye nabanye. Sesimeni namandla amanzi kunye nokumelana nobushushu, banciphisa inqaba umaleko ngcina. Ngoko ke, isiqulatho inyityilikiswayo e PVA kuba ncinci.

Babizwa ngokuba plasticizers zinika bhetyebhetye amalungu kwakuse. Ngoko ke, iphepha njo PVA, zingalula bent ngaphandle ngokwaphula udibaniso. Plasticizer ziquka glycerin, ioli camphor.

Ukuphucula amandla ubunzima kwakuse wongezelela excipients: kaolin, talc, ngetshokhwe.

Ukunciphisa ixesha Ukuqinisa kunye lukhuni, sebenzisa ongeziweyo ezincinane iglasi, imveliso okanye umgubo wentsimbi.

Ukwandisa ithuba lokugcinwa kwezinto ubume ngcina ibhalwa ekwenzeni yayo eziquka inhibitors styrene, iikhompawundi ezahlukeneyo nitro.

PVA iglu, ixabiso leyo ixhomekeke khona kunye nobukho components ezithile, kodwa ithathwa njengokuba libiza kancinane kwaye ezingabizi kakhulu. ngcina Construction uvela engange-26 ikilogram. Kuyinto efanelekileyo ukuba wallpapering. Universal PVA amanqaku glue, "Rainbow", "Bolars" ngaphezulu ngexabiso - evela engange-65 ikilogram.

iindlela original yokusebenzisa PVA

Ngaphandle nendlela eqhelekileyo usebenzisa PVA ngcina iphepha lib, okanye ngexesha ukulungiswa, iingcibi bakufumanisa sicelo sokuqala ngakumbi.

Umzekelo, edibanisa gouache kunye PVA, singafunda ngelaphu okanye enye indawo. Kubonakala ukuba indlela emangalisayo eninzi oyile okanye acrylic ipeyinti. Ngenxa gouache iglu ubuxoki kakuhle umbandela igcinwe elide. Ukuba isiphumo ayifani nto, ngoko yonke into ngokulula ndakuhlambulula, kwaye ungaqala kwakhona.

Abasetyhini basebenzisa iglu ukuze manicure. It linokusetyenziswa izikhonkwane njengoko isiseko phantsi iinzipho ezalekwe. Ngenxa yayo non-zinetyhefu, yinto ukuba isikhonkwane yaye ngaloo ndlela kube lula isuswe ngaphandle kokusebenzisa izinyibilikisi.

Ukuba isicelo ngcina kwi Ulobuza ngeenxa isikhonkwane, ungenza ungoyiki ukuba Ipeyinti ufumana apha esikhumbeni. strip enamathelayo kunye kwiintsalela lacquer nangoko isuswe emva omiswe.

iimeko yokugcina

Kuba yokugcina PVA ngcina ukubunjwa ezihlobeneyo izinyibilikisi wasebenzisa isikhongozeli evaliweyo equlathe kwi ukusuka izinyuko emihlanu ukuya kwelishumi.