PVA manne - abun da ke ciki. Fasaha halaye na m

Idan kana son wani abu to tsaya tare, da farko na duk tunanin da ya fi na kowa manne PVA. Samuwa ne a kowane gida da kuma ofishin, an yi amfani da ba kawai ga bonding na bayyana takarda, amma kuma a cikin shiri masana'antu. Kuma godiya ta zuwa ga sauki tsarin, ba ka damar canza amfani da gabatarwar musamman Additives.

A kadan tarihi

Back a 1912, da Jamus gudanar Klatt na acetylene gas roba acetate. A sabon wakili a cikin Polymerization ya zama m. Amma kafin yakin duniya na II American Farben kafa wani sayar da samar da PVA manne.

Shekaru hudu daga baya, Korean, gudanar da zaman kanta bincike sami Vinalon, wanda dogara ne a kan polyvinyl barasa. Tun PVA manne, farashin wanda yake kasa da yawa wasu adhesives, ya yada a duniya.

A kan ƙasa na tsohon Tarayyar Soviet da taro samar PVA fara a farkon seventies karni na ashirin da a Severodonetsk (Lugansk yankin). Our grandmothers har yanzu tuna cewa kafin a aiki makaranta darasi ga gluing takarda ta amfani da manne da sabon abu da sunan "itacen ƙirya". Kuma a cikin wuya postwar shekaru na m shirya daga gida ko a dafa shi dankalin turawa, sitaci.

Kuma yanzu ba za mu iya tunanin yadda yana yiwuwa su zasu tafi tare da PVA manne.

PVA manne: Bayani dalla-dalla

Wannan na ƙwarai kuma ya zama mai yawan nufin yana da yawa m Properties. Its m ƙarfi ya 450 N / m. Saboda da sassauci da kuma uniformity shi ne amfani a wani bakin ciki Layer wanda ya zama marar ganuwa bayan bushewa. Takarda sized PVA, na iya zama da sauƙi lankwasa, bayan bushewa da shi ba ya karya.

A babbar ne wadanda ba mai guba da kuma wadanda ba flammability, kyale shi da za a yi amfani da yara a aji da kuma a gida. Ba karfi wari saki a lokacin da yin amfani da m, ne m. Duk wani nau'i na manne, a Bugu da kari ga PVA-K (stationery), gagara misãlin hudu sau ba tare da asarar dukiyoyinsu. Idan dole, shi ne diluted da ruwa ko wasu kaushi, msl, acetone. Bushewa lokaci ya dogara da Layer kauri da kuma ba ya wuce sa'o'i 24.

Its ruwa tushe damar shigarwa na daban-daban Additives a PVA manne, da abun da ke ciki na wanda dabam haka a so shugabanci. Saboda haka sabon sabõda manne cultivars da aka ɓullo da.

irin PVA

Ta hanyar Bugu da kari na fadada ikon yinsa, daga cikin PVA manne.

Mun jera babban yankunan amfani:

• iyali aikace-aikace (hade da bayyana takarda).
• amfani don gyara (Wallpapering, linoleum).
• shigarwa na yumbu fale-falen.
• aikace-aikace a cikin shiri masana'antu a matsayin Additives.

Description na daban na manne

Stationery PVA m, wanda abun da ke ciki ya ƙunshi wani mai guba Additives amfani for bonding takarda, yara ta kerawa. Saboda babu mai kaushi, wanin ruwa, shi ne m ga yara, shi za a iya amfani da a ɗaka ba tare da hoods.

Mafi na kowa daraja PVA - duniya. Yana yana da wani m ikon yinsa, daga aikace-aikace. Su za a iya gam china, gilashin da takarda. Yana da aka kara wa share fage, putty a gyara daga cikin gabatarwa, don bunkasa nauyin Properties.

Household PVA amfani ga Wallpapering, nauyi takarda. An halin high sanyi juriya.

PVA manne yana super danko sosai daidaito saboda plasticizers ne saboda haka amfani da kayyade tiles, roba, karfe. Its main aikace-aikace - yi masana'antu.

PVA manne joiner ya inganta danshi juriya da kuma ake amfani da haɗa da katako kayayyakin.

Wani rare irin manne - PVA "Lokacin". An halin da dukiya da instantaneous bonding saman ba tare da jami'an tsaro latsa. Ana iya amfani da wa kayyade da laminate, parquet da sauran saman.

Musamman wasu irin PVA

Building PVA da ake amfani ba kawai a matsayin kai-m, amma a matsayin kari zuwa iri-iri na kayan gini. A daidai sunan yi m - da watsawa na polyvinyl acetate homopolymer. Saboda da yawa daga cikin abun da ke ciki na yi m ne amfani da trowel. A bonding saman ya kamata a sosai tsabtace daga turɓaya da degrease.

PVA manne, da abun da ke ciki na wanda ya hada da plasticizer kamata ba za a sanyaya kasa sifili digiri, in ba haka ba zai rasa da kaddarorin. A lokaci guda, da m ba ya dauke da irin wannan Additives, zai iya tsayayya da sanyi arba'in digiri ba tare da rasa da m Properties bayan thawing. Idan bushe fim da aka kafa, shi dole ne a cire, da kuma taro gauraye sosai a kan m taro surface. Don hana manne ya bushe, shi ne adana a tam rufaffiyar kwantena.

PVA manne: abun da ke ciki

Ka yi la'akari da asali aka gyara abin da ake kara wa m ya canza ta da m Properties. Wadannan albarkatun kasa suna kara da cewa a samar mataki da aka raba da wadannan kungiyoyin:

• adhesives.
• kaushi.
• plasticizers.
• fillers.
• hardeners.
• cakosoban.

A rabo na sama aka gyara da kuma imparts kyawawa Properties zuwa daban-daban iri manne.

Adhesives, wanda sun hada da sitaci da kuma guduro abun da ke ciki goya ƙarfi a connection.

Kamar yadda sauran ƙarfi amfani, acetone, benzene, da sauransu. Leveraging da ruwa juriya da kuma zafi juriya, da suka rage ƙarfin da m Layer. Saboda haka, sauran ƙarfi abun ciki a cikin PVA ne kadan.

A ake kira plasticizers samar da sassauci da m gidajen abinci. Saboda haka, takardar gam PVA, na iya zama da sauƙi lankwasa ba tare da keta connection. Plasticizer hada da glycerin, yã kãsance kãfur ne man fetur.

Don inganta ƙarfi daga cikin m taro da aka kara excipients: kaolin, talc, alli.

Don rage tsawon solidification da hardening, yi amfani da kananan gilashin Additives, ain ko karfe.

Don ƙara shiryayye rayuwa na da m abun da ke ciki an gudanar a cakosoban da suka hada da styrene hanawa, daban-daban nitro mahadi.

PVA manne, farashin wanda ya dogara a kan manufa da kuma gaban wasu aka gyara, har yanzu gane a matsayin mafi arha, kuma mafi araha. Yi m ne daga 26 rubles da kilogram. Shi ne mafi dace wa Wallpapering. Universal PVA manne da alãmarsu, "Bakan Gizo", "Bolars" mafi tsada - daga 65 rubles da kilogram.

Original hanyoyin da yin amfani da PVA

Bayan da ya saba da hanyoyin da yin amfani da PVA m for bonding takarda ko a lokacin gyara, sana'a sami shi mafi asali aikace-aikace.

Alal misali, hada gouache da PVA, za a iya zana a kan zane ko wasu saman. Sai dai itace mai ban mamaki madadin zuwa tsada man ko acrylic Paints. Saboda da manne gouache ta'allaka da kyau zuwa ga abu ne kiyaye dogon. Idan sakamakon da aka ba son shi, sa'an nan kome aka saukin wanke kashe, kuma ba za ka iya fara sake.

Mata na amfani da manne ga yanka mani farce. Yana za a iya amfani da kusoshi matsayin tushe karkashin ƙusa goge tare da sparkles. Saboda ta ba-yawan guba, shi ne m ga ƙusa da haka za a iya sauƙi cire ba tare da yin amfani da kaushi.

Idan ka yi amfani m ga cuticle a kusa da ƙusa, ba za ka iya ji tsõron Paint samun a kan fata. M tsiri da lacquer sharan nan da nan cire bayan bushewa.

ajiya yanayi

Domin ajiya PVA m abun da ke ciki wanda gaba da maras tabbas kaushi amfani da rufaffiyar ganga cewa ya ƙunshi a daga biyar zuwa goma digiri.