PVA guruu - sezvamunoita. Technical zvechadenga namira

Kana uchida chimwe chinhu akanamatirana pamwe chete kutanga kufunga inonyanya guruu PVA. Inowanika mumusha ose uye hofisi, rinoshandiswa kwete chete nokuda kwokuva pamusoro pachena bepa, asi naiyewo kuvaka indasitiri. Uye nemhaka yaro nyore yakarongeka, kunoita kuti kuchinja kushandisa pakatanga dzinokosha yokuvirisa.

A Nhoroondo shoma

Kare 1912 ari German Klatt akakwanisa kubva gasi acetylene raive nebutiro acetate. Mutumwa chitsva polymerization vakava Sticky. Asi asati Hondo Yenyika II American väriä akasimbisa ane wezvokutengeserana kugadzirwa kwezvinhu PVA guruu.

Makore mana gare gare, Korean, kuitisa yakazvimirira tsvakurudzo anogamuchira Vinalon, iyo yakavakirwa polyvinyl doro. Sezvo PVA guruu, mutengo Iyo iduku pane mamwe adhesives zhinji, yapararira pasi pose.

On nyika yaimbova Soviet Union kuti vakawanda kugadzirwa PVA yakatanga mukutanga manonwe remakore rechimakumi maviri muna Severodonetsk (Lugansk nharaunda). vanambuya vedu kuyeuka kuti kare muna basa chidzidzo gluing mapepa achishandisa guruu pamwe kujairika zita "nomuti" chikoro. Uye akaoma pashure pehondo makore namira kugadzirirwa kubva pamba kana yakabikwa mbatatisi starch.

Zvino isu hatigoni kufungidzira sei zvinoita rokugovera pamwe PVA guruu.

PVA guruu: Magadzirirwo

Izvi zvinoshamisa uye chava nzira ine zvivako zvinokosha zvakawanda. simba rayo namira raiva 450 N / m. Nokuda kwayo mukana wokushandiswa uye kufanana nayo rinoshandisirwa munhu mutete rukoko rinova asingaoneki pashure kupwa. Paper kadikidiki PVA, unogona kuva nyore wakakokonyara, pashure vachiyanikira haadimbuki.

A ndinoiitawo huru iri non-chepfu uye asiri flammability, kuubvumira kushandiswa vana mukirasi uye kumba. Kwete kwakanaka simba akasunungura panguva kushandiswa namira, hakukuvadzi. Mhando dzose guruu, kuwedzera kune PVA-K (Stationery), vanozvidzivirira kuoma nechando nguva zvina pasina kurasikirwa zvivako. Kana zvakakodzera, izvozvo rakasanganiswa nemvura kana zvimwe zvokufembedzwa, semuenzaniso, acetone. Kupwa nguva kunobva zvakaturikidzaniswa ukobvu uye asingauyi kupfuudza maawa 24.

Its mvura mujinga anobvumira panopindwa yokuvirisa siyana muna PVA guruu, murwiyo izvo zvinosiyana saizvozvo achida mirayiridzo. Saka mutsva netsika guruu cultivars kunge yakatanga.

Mhando dzakasiyana-siyana PVA

Kuburikidza kuwedzera rakawedzerwa yezvinoreva PVA guruu.

We nyora huru nzvimbo kushandiswa:

• Chikumbiro mhuri (Bonding bani paper);
• kushandisa nokuti kugadzira (Wallpapering, linoleum);
• kuisa zvedongo usina kukonekita;
• Chikumbiro pakuvaka bhizimisi sezvo yokuvirisa.

Description of mhando guruu

Stationery PVA namira, izvo akafanana harina chepfu yokuvirisa zvinoshandiswa Muitiro unobatanidza bepa, vana okugadzira zvinhu. Nokuda kusavapo kunze mvura zvokufembedzwa, hakukuvadzi vana, rinogona kushandiswa mumba pasina Hoods.

mugiredhi chinonyanya zvinowanzovapo PVA - nokudenga. It ane yakafara zvezvinotaurwa chikumbiro. Vanogona glued China, girazi nebepa. Zvinonzi kuwedzera lähikuva, putty rokugadzirisa pakati kwakavakirwa, kuvandudza kubatanidzwa ehupfumi.

Household PVA rakashandiswa wallpapering, rinorema mapepa. It kunoratidzwa kumusoro chando nemishonga.

PVA guruu ane nakisa viscous kusachinja-chinja Naizvozvo nokuda plasticizers rinoshandiswa kuti kutara usina kukonekita, mapurasitiki, simbi. Its chikumbiro chikuru - kuvaka indasitiri.

PVA guruu joiner kwakavandudza mwando nemishonga uye rinoshandiswa kuti unobva yemapuranga zvigadzirwa.

Chimwe yakakurumbira mhando guruu - PVA "Moment". It kunoratidzwa kwayo zvinhu nguva imwe chokuedza hukawanika pasina kuchengeteka mauto kudzvanya. Rinogona kushandiswa kugadzira ari laminate, parquet nezvimwe hukawanika.

Zvikurukuru dzimwe mhando PVA

Building PVA rinoshandiswa kwete chete kuva nokuzviremekedza namira, asi somunhu kwokunwa dzakasiyana-siyana zvokuvakisa. Zita zvakarurama kuvakwa namira - kupararira polyvinyl acetate homopolymer. Nokuda arambe achirema ari Kuronga kuvaka namira rinoshandisirwa ane trowel. A Bonding hukawanika zvinofanira kucheneswa kwazvo kubva muguruva uye degrease.

PVA guruu, murwiyo izvo rinosanganisira plasticizer harifaniri dzaserera pazasi razero madhigirii, zvikasadaro nayo acharasikirwa ehupfumi ayo. Panguva imwe cheteyo, namira harina yokuvirisa zvakadaro, unogona kukunda chando madhigirii mana pasina kurasikirwa ayo namira ehupfumi pashure thawing. Kana waoma firimu aumbwa, chinofanira kubviswa, uye mukanyiwa hwakakanyiwa kwazvo pamusoro namira vakawanda pamusoro. Kurambidza guruu waoma, zvinonzi inochengetwa zvakasimba Akanyatsovharwa mumagaba.

PVA guruu: sezvamunoita

Funga dzinokosha zvinoriumba vari kuwedzera namira kushandura ayo namira ehupfumi. mbishi izvi zvinhu anowedzerwa pakuburitswa pachikuva uye rakakamurwa zvinotevera mapoka:

• adhesives;
• zvokufembedzwa;
• plasticizers;
• fillers;
• hardeners;
• stabilizers.

Nhamba pamusoro zvinoriumba uye anotipa zvinodiwa zvivako kune-siyana guruu.

Adhesives, izvo zvinosanganisira starch uye nebwe sezvamunoita vanopa simba panguva papi.

Sezvo solvent kushandiswa, acetone, benzene, uye vamwe. Leveraging mvura nemishonga uye kupisa nemishonga, ivo kuderedza simba namira rukoko. Naizvozvo, solvent tigutsikane muna PVA riri shoma.

Vanonzi plasticizers zvinopa mukana wokushandiswa namira majoini. Naizvozvo, pepa glued PVA, unogona kuva nyore hwakakungwa pasina kutyora papi. Plasticizer zvinosanganisira glycerin, camphor mafuta.

Kuti uvandudze simba namira guru Wakawedzerwa Excipients: kaolin, talc, choko.

Kuderedza nguva solidification nokuomesa, shandisa duku magirazi yokuvirisa, porcelain kana simbi.

Kuwedzera pamusoro pasherefu upenyu ari namira nziyo chinotarisirwa mu stabilizers ayo anosanganisira styrene FIs, siyana nitro yeimwe.

PVA guruu, mutengo iyo kunobva kuenda uye kuvapo zvimwe zvinoriumba, achiri kuzivikanwa sezvo yakachipa pashiri uye kupfuura inokwanisika. Construction namira anobva 26 rubles por kilogram. Zviri nani kuti wallpapering. Universal PVA guruu mavanga, "Rainbow", "Bolars" anodhura - kubva 65 rubles por kilogram.

Nzira Original kushandisa PVA

Kunze zvatinosiita nzira yokushandisa PVA namira nokuda kwokuva bepa kana panguva kugadziriswa, mhizha vanoona zvakawanda yepakutanga kushanda.

Somuenzaniso, tichibatanidza gouache uye PVA, vanogona kuswedera pamusoro kanivhasi kana zvimwe hukawanika. Zvakaratidza zvinoshamisa pane zvinodhura mafuta kana acrylic pendi. Nokuda guruu gouache nhema zvakanaka mashoko rwokuchengeta refu. Kana mugumisiro isina kufanana nayo, ipapo zvose zviri nyore akageza kure, uye iwe unogona kutanga zvakare.

Vakadzi vanoshandisa guruu nokuda manicure. Inogona kushandawo kune zvipikiri somunhu mujinga pasi chipikiri muchiPolish ichivaima. Nokuda kwayo kuvasiri toxicity, zviri hazvikuvadzi ezvipikiri uye nokudaro inogona nyore kubviswa pasina kushandisa zvokufembedzwa.

Kana ukashandisa namira kuti cuticle kumativi mbambo, haugoni kutya kuti pendi anowana pamusoro ganda. Namira Pfekenura pamwe lacquer residues pakarepo akabvisa pashure kuomesa.

chengetedzo mamiriro

Nokuti okuchengetera PVA namira sezvamunoita iyo mukwanisi kugadzikana zvokufembedzwa vaishandisa rakavharwa mudziyo kuti rine dzimwe kubvira mashanu inegumi.