I kuphela P4 Ukucaciswa, isakhiwo

Ukuze uphumelele Umdwebo imisebenzi nazo adjuvants ezibalulekile ezifana izihlanzi, ogama ukusetshenziswa kuyadingeka ukulungiselela umhlabathi futhi lidlulisele ukuvumelana oyifunayo kapende izinto. Kulesi sihloko sizoxoxa P4 kuphela, okuyinto ingenye ethandwa kakhulu futhi owaziwa emakethe materials efanayo.

izici Jikelele

P4 kuphela - i kuphela organic okuyinto ketshezi kungekho nto enemibala emihle (kwezinye izimo kungase kudingeke Tint aphuzi) ngaphandle izinhlayiya ebonakalayo okwesikhashana. It elinesimo iphunga othize kanye simo esishubile okusezingeni eliphezulu. Inani isilinganiso kwabantu eyisihlobo ketshezi kuyinto 0.85 g cc ngayinye. cm. autoignites ezingeni lokushisa 550 degrees. Yathela ngokuvumelana nezindinganiso eyayifunwa GOST 7827-74. Ikhishwa yesiqukathi zezimboni - uplastiki namabhodlela izitsha (amabhodlela) ezinobukhulu obuhlukahlukene.

P4 kuphela: Ukwakheka

P4 - inhlanganisela kumakhemikhali awuketshezi ezintathu organic, okuyinto ndawonye ukuthola kahle enkulu nakakhulu. Lihlanganisa izinto ezilandelayo:

• Toluene - 62%;

• acetone - 26%;

• butyl acetate - 12%.

Ngenxa zithako kuphela anele has umthengi ezinhle izakhiwo kanye okusezingeni eliphezulu kahle nokuqedwa varnishes nopende. isithako okunjalo njengoba butyl acetate, kwandisa amafilimu isicwebezelisi isicelo ezinengilazi iphinde ivimbele mhlophe futhi amakhorali.

The main nemingcele lobuchwepheshe uketshezi

I P4 kuphela (GOST 7827-74) kwadingeka izici ezilandelayo:

• inkomba value simo esishubile of ETHYL ether ku uhla kusuka 5 kuya ku-15;

• Inombolo coagulation akuyona esingaphansi 24%;

• inani lamanzi (by mass) akuyona ezingaphezu kuka-0.7%;

• inombolo acid ezingekho ngaphezu 0,07 mg Koh / g.

Iyatholakala njengoba ebangeni kuphela P-4A. I reagent futhi P4 kuphela - analogs ka Ukucaciswa. Nokho, bayehluka nse Ukwakheka, kusukela, ngokuvumelana nezidingo GOST, ku-P-4A akubandakanyi butyl acetate. Omunye umehluko ukuthi lezi zimpawu ukuthi brand kuphela F-4A, ngokungafani P4 kungaba chaza koqweqwe lwawo CHV-124 (zokuzivikela futhi grey).

Kulokhu uketshezi olusetshenziswa P4?

I reagent esetshenziswa ezifanelekayo ukufuya upende uthayiphe PSC PSC LN futhi LS, isisekelo ukukhiqizwa zazo kampompi ukuxova umuthi wokugoma polyvinyl chloride inhlaka, epoxy inhlaka, vinyl chloride copolymers kanti ezinye nezinye izinto ifilimu ukwakha.

Sokuphuzisa - indlela ukuba alulaze upende P4 kuphela?

P4 kuphela sengezwe ngendlela izinto ezithile (ukuvenisha noma upende) izingxenyana ezincane kuze ukuvumelana oyifunayo. upende Amazing (lacquer) idinga eshukumisayo njalo.

Ngemuva kokufaka isicelo ukulungele enamathela ehwamukile kuphela kanye ifilimu ukwakha impahla eqinisa, kuphenduke enamathela zokuzivikela. Kubalulekile lapho esebenza kuphela ukugwema ingress amanzi njengoba ingxenye acetone bangavele uhlanganise nalo, kanti lokho kuzoholela ukuhlanekezela umbala noma mhlophe sejazi ecacile.

siphephe uma usebenza nge P4 kuphela

Kufanele kukhunjulwe ukuthi into kungokwalabo toxicant futhi angase abe nomthelela ongemuhle mayelana nomzimba womuntu, ehlinzekwa wumnikezeli ephefumula, futhi ingena esikhunjeni. Ngu isikhathi eside ukuchayeka kuyobuthinta omubi kuphela ku kuyofika emnkantsheni ithambo negazi. Endabeni contact isikhathi eside nge isikhumba kungase zimiswe dermatitis.

Uma sicabanga ngakho konke okungenhla, ne P4 kuphela okufanele kwenziwe esakhiweni, ukuhlinzeka komoya okuhle. Kubalulekile futhi ukusebenzisa imishini zokuzivikela ukuvimbela ukuchayeka izinto eziyingozi e- umgudu wokuphefumula, amehlo kanye isikhumba izandla (wokuphefumula, amagilavu, amagogolo).

P4, kanye nabanye abaningana kumakhemikhali awuketshezi, elinesimo izinga eliphakeme umlilo ingozi. Ingxube ukuthi luvutha kalula, futhi, ngaphezu kwalokho, inhlekelele. Imibhangqwana ezakha izinto isakhiwo ukuqoqa uketshezi okuyizinyanga alufakwa. Ngakho-ke, imfuneko uketshezi kuyinto ukuthobela izidingo zokuphepha umlilo.