The solvent P4 nokurondedzerwa, mamiriro

For akabudirira kupenda akavhiyiwa vari Zvinokoshawo adjuvants akadai zvokufembedzwa, vane kushandiswa zvakafanira kugadzirira pemvura uye kupa zvinodiwa kwemashoko pendi zvinhu. Munyaya ino tichakurukura solvent P4, inova chimwe chezvinhu dzakakurumbira uye aizivikanwa pamisika yakafanana zvinhu.

General unhu

P4 solvent - chinhu Organic solvent inova pachena Hauoneki mvura (dzimwe nguva vangava yellowish tint) pasina zvinooneka akarembedzwa inoramba. It dzinoratidzwa chaicho kwakanaka uye yakakwirira volatility. Avhareji Kukosha ari hama arambe achirema pamusoro fuma iri 0,85 g pa CC. cm. autoignites panguva tembiricha rworwendo 550. Yakabereka maererano nemitemo zvaitaurwa GOST 7827-74. Achibudiswa maindasitiri mugaba - mapurasitiki uye magirazi midziyo (hombodo) kuti hukuru siyana.

P4 solvent: sezvamunoita

P4 - musanganiswa zvitatu zvinoita zvokufembedzwa, izvo pamwe wana yakatokura kunyatsoshanda. Chinosanganisira anotevera zvinhu:

• Toluene - 62%;

• acetone - 26%;

• butyl acetate - 12%.

Nokuda sezvamunoita izvozvi solvent yakakwana ane nevatengi zvivako zvakanaka uye yakakwirira kunyatsoshanda pokufa varnishes uye pendi. chirungiso akadai butyl acetate, inowedzera Gloss mafirimu aishanda coatings uye chinonditadzisa zviitwe uye bleaching.

The chikuru hwokugadzira parameters of solvent

The solvent P4 (GOST 7827-74) yakava unhu:

• kuti chinoratidza kukosha volatility kuti ethyl Eteri iri zvinobva 5 kusvika 15;

• coagulation nhamba haasi asingasviki 24%;

• Huwandu mvura (by vakawanda) haasi kupfuura 0,7%;

• ane iine acid nhamba isina anopfuura 0,07 MG Koh / g.

Available sezvo solvent giredhi P-4a. The reagent uye solvent P4 - analogs ose nokurondedzerwa. Zvisinei, ivo vakasiyana zvishoma muna sezvamunoita, sezvo, maererano zvinodiwa GOST, muna P-4a haibatanidzi butyl acetate. Chimwe musiyano iri kuti mavanga aya kuti pefiyumu solvent F-4a, kusafanana P4 anogona kuiparadza enamel CHV-124 (wokudzivirira uye ndachena musoro).

Makavigwa solvent aishandisa P4?

The reagent akashandiswa maberekero kuti pendi kutaipa PSC PSC LN uye Ls, hwaro kugadzirwa ayo chlorinated polyvinyl chloride Inogadzirwa nemasiridzi anobuda mumiti, epoxy Inogadzirwa nemasiridzi anobuda mumiti, vinyl chloride copolymers uye dzimwe film-zvichiumba zvinhu.

Dosing - sei sanganisa kuti pendi solvent P4?

P4 solvent iri yebhasera imwe zvinhu (varnish kana pendi) mu migove duku kusvikira zvinodiwa kusachinja-chinja. Akatunhidzwa pendi (lacquer) zvinoda kugara anokurudzira.

Mushure nokushandisa yakagadzirirwa unhani solvent runopwa uye film-kusikwa zvinhu zvigare, akatendeuka mugomba unodzivirira unhani. Zvakakosha kana uchishanda solvent kudzivisa ingress mvura sezvo chikamu acetone anogona nyore kusangana nawo, uye ichi ndichazoendawo kutungamirira kukanganisa ruvara kana zviitwe akajeka jasi.

Safety patinoungana kushanda solvent P4

Zvinofanira kurangarirwa kuti mashoko ndohwaJehovha toxicant uye angava inokanganisa muviri, izvo nechikoro nokuda inhalation, uye chinopinda ganda. By kwenguva refu vachiona zvingangoitwa zvinokonzerwa solvent pamusoro mumwongo uye ropa. Kana kwenguva refu nevanhu ganda ingangoumbwa dermatitis.

Tichitarisa zvose pamusoro apa, pamwe solvent P4 yaifanira pamusoro panzvimbo, ichipa kufefetedza zvakanaka. Zvinokosha kushandisa wokudzivirira midziyo kudzivirira kukuvadzwa zvinokuvadza ari kufema ino, maziso uye ganda maoko (unomubatsira kufema, magiravhusi, magogorosi).

P4, uyewo zvimwe zvokufembedzwa, dzinoratidzwa anokudzwa pangozi moto. Musanganiswa akanga nyore dzakaparira, uye, uyezve, ndizvo putika. Vakaroorana vanoumba zvinhu zvine pfuma kuunganidza solvent vari zvakare putika. Naizvozvo, chinhu chinodiwa kuti solvent ndiko kuita moto kuchengeteka zvinodiwa.