The solvent P4 tobileng, sebopeho

Bakeng sa le atlehileng. tshebetso ho penta le tsona adjuvants bohlokoa tse kang solvents, bao tšebeliso ke ho hlokahala hore ho lokisetsa holim 'me le fa ea tumellano lakatsa ea thepa e pente. A sehloohong sena a re tla buisana ka P4 solvent, e leng e mong oa ka ho fetisisa ratoa le tsebahalang ka 'maraka oa thepa e tshwanang.

litšobotsi tse akaretsang

P4 solvent - e solvent manyolo e hlakileng colorless mokelikeli (ka linako tse ling le ka ba le bb yellowish) ntle le likaroloana bonahalang emisitswe. E tšoauoa ke e monko o itseng le phahameng volatility. Boleng karolelano ea ho segokanyipalo mong ka ntho ke 0,85 g, ka ho ya ka cc ya. cm,. autoignites ka mocheso oa likhato tse 550. E ya hlahiswa ho latela e bontšitsoeng ke GOST 7827-74 litekanyetso tsa hae. Hatisa ka setshelo liindasteri - polasetiki le lik'hontheinara khalase (libotlolo) tsa boholo bo sa tšoaneng.

P4 solvent: sebopeho

P4 - motsoako oa solvents tharo manyolo, e leng sehlopha fumana bokgoni le ho feta. Li akarelletsa lintho tse latelang:

• Toluene - 62%;

• monohalogen acetone - 26%;

• monoethyl ea acetate - 12%.

Ka lebaka la ho sebopeho sena solvent lekaneng na thepa e ntle mosebedisi le phahameng bokgoni shoa hoa lipolisheng le pente. Joalo motsoako ka monoethyl ea acetate, eketsa sephatsimisi lifilimi sebelisoa coatings le thibela soeufatsa le kenngoa ka har'a sesoeufatsi.

Ka sehloohong entsprechen botekgeniki tsa solvent ho

The P4 solvent (GOST 7827-74) ne litšobotsi tse latelang:

• ho pontshi boleng volatility tsa ethyl phenylate ka mefuta e fapaneng ho tloha 5 ho ea ho 15;

• coagulation palo e seng ka tlase ho 24%;

• palo ea metsi (by boima) hase ho feta 0.7%;

• e acid e palo ya tse sa feteng tse 0,07 mg, KOH / g.

Fumaneha ka solvent sehlopheng P-4a. The reagent le solvent P4 - analogs ba tobileng. Leha ho le joalo, ba ile ba fapana batla ka sebopeho, ho tloha, ho ea ka ditlhoko tsa GOST, ka P-4a e sa kenyeletse monoethyl ea acetate. phapang e 'ngoe ke hore matshwao ana hore cha solvent F-4a, ho fapana le P4 ka qhala enamel CHV-124 (ho sireletsa le bohlooho).

Moo ho solvent sebediswa P4?

The reagent sebediswa bakeng sa ho ikatisa ea pente thaepa PSC PSC Ln le LS, motheo oa ho fana ka tlhahiso eo ba ditlelorine polyvinyl chloride halogenated, halogenated epoxy, vinyl chloride copolymers 'me ba bang lintho tse ling filimi-eaba ba etsa.

Dosing - joang ho hlapolla le pente solvent P4?

P4 solvent e eketsa ka lintho tse bonahalang tse itseng (varnish kapa pente) ka likarolo tse ling tse nyenyane ho fihlela tumellano e lakatsehang. Le hlahileng pente (lacquer) e hloka e susumetsang kamehla.

Ka mor'a ho sebelisa alengelami barbotage solvent pshang le filimi-eaba ba etsa lintho tse bonahalang tiee, ho retelehela ka barbotage e sireletsang. Ho bohlokoa ha ho sebetsa le solvent ho qoba ingress ea metsi e le karolo ea monohalogen acetone e ka 'na ea kopanya habonolo le eona,' me sena le eena o tla etsa hore motho a khopama 'mala kapa soeufatsa tsa baki e hlakileng.

lula ba le seli ha ba sebetsa le P4 solvent

E lokela ho a hopola hore lintho tse bonahalang ke ea toxicant le ka 'na ba le tšusumetso e mpe ho' mele oa motho, eo e fuoa ke inhalation, 'me le kenella ka hare ho letlalo. Ke nako e telele ho pepesehela khoneha le phello e mpe ea solvent ka ho lesapo moko le mali. Tabeng ea ho ikopanya le ka nako e telele le ea letlalo e ka etsoa dermatitis.

Ho nahana ka tsohle tse ka holimo, le P4 solvent lokela ho phethahatsoa ka jareteng ea, ho fana ka ventilation molemo. E boetse ke habohlokoa ho sebelisa thepa ea ho sireletsa ho thibela ho pepesehela lintho tse kotsi ka tsamaiso e khopo ho hema, mahlo le letlalo oa matsoho a (respirator, litlelafo, goggles).

P4, hammoho le a mangata a solvents a mang, tšoauoa ka tsela e itseng e phahameng ea kotsi mollo. motsoako ile habonolo epelaki, 'me, ho feta moo, e phatlohile. Banyalani ba etsa lintho tse nang le thepa ea ho bokella solvent hape ke ho phatloha. Ka lebaka leo, E le hore bakeng sa solvent ke ho latela ditlhoko polokeho mollo.