Polyurethane varnish - he laekahi 'pau ai i ua mea

Ka hooulu ana o kēia 'ike loea hou no ka? Iecaianoaaiiie o ka hoʻopau pono e leie aku i ka paka a pau hou, a hou huahana me ka helu o ka hanana waiwai. Oia novelties pili polyurethane lacquer.

Kēia mea, he hōʻailona o ka haku mele 'ana okoa pāʻoihana o hydroxyl polyfunctional isocyanates. Polyurethane lacquer ka wā noi ia ano ma ka ili o ka paa pīlali me ekolu-dimensional 'ole. Kēia kaʻina ia lŘlŘ aie i ka naoh o isocyanates me ka hydroxyl eiiiiiaiou (kāpili polyesters loaa mai ma ka naoh o ka oi o polyhydric ka waiʻona me ka dibasicʻakika a me nā mea huihuina o ka monobasic a me ka dibasic momoma nāʻakika).

Pinepine hoʻohana a me ka hapa 'ia' hydrolyzed Tewetewe acetates, kāpili polyacetals, kelulose nā mea kemika, a me ka phenol-formaldehyde kēpau ksilolformaldegidnye. Mawaena o na isocyanates hoʻohana loa mau hoʻohana diisocyanate a me ka likeʻole nā mea huihuina ona. Nō hoʻi, hana hexamethylene diisocyanate a me ka naoh nā huahana o ka oi diisocyanate me ka polyhydric ka waiʻona , a hydroxyl i loaʻa polyesters. Ka hana ana i kēia mau mea e noi mai ana kūikawā kaiapuni. He nolaila, oi mea hiki ke hoʻohana "wahi" a "i hunaia" isocyanates, i huiʻia a i hoopuni decomposed ka wā 'enaʻena. Kēia pūʻulu nā ka naoh nā huahana o isocyanates me malonic, acetoacetic ester, ethyleneimine a me ka feniluretanom. Polyurethane lacquers mea hoʻoheheʻe hoʻohana 'ana i nā mea kemika, ketones, chlorinated hydrocarbons, nitroparaffins. Mau hana diluent mea xylene, toluene, aliphatic hydrocarbon.

Polyurethane lacquers i loaʻa me kekahi-ke keʻena a elua-ke keʻena mele. I ka lua o ka hihia kaawale makaukau pāʻoihana o ke hydroxyl-i loaʻa i huiʻia, a me nā mea huihuina o kēia mau hui a me isocyanate pāʻoihana ma mua ka hoʻohana 'ana i kēia Agena e hui. Oia ka i hoomakaukau elua-ke keʻena lacquer ua mālama mai ka 4 a hiki i 48 hola. Oia ka paleʻana i ia no ka penaʻana o ka wela a me ke anu, hoola iho. Kona palena noonoo i ka pilina paʻa hoʻokahi-ke keʻena anal-hoola iho la ka paleʻana i ke kanaka ma muli o ka ai-i kapaia o "wahi" isocyanates.

Polyurethane varnish ano he ilipoo, laholio ka paleʻana me kiʻekiʻe paakiki, maikaʻi mea pīlali, kiʻekiʻe dielectric waiwai a me Nine Inch e kū'ē'ē mai. Ka mea, i increasingly, ua hoʻohana 'ia no ka maluhia o ka pōhaku puna, mea hiki ke hooheheeia, laau surfaces, a ua hoʻohana' ia no ka pena i ka ipu o Nine Inch, smelting a me ka hoohehee maemae au ia mea kanu, ma ka ai e hana.

Available polyurethane varnish no parquet, lako, laholio, pepa, ili, me Mokukaua? Ieoaeunoaa iauaeoia, kemikala fabrics a me nā lula ea. Kēia ka penaʻana ka loa a me ka mau nō he mea hiki, e nui maoli ka holopapa ola o kekahi mau mea. One-ke keʻena ka paleʻana i pinepine hoʻohana no ka maluhia o ke keleawe, a me ka mea hiki ke hooheheeia Aluminum me nā huahana.

i malama i ka laau paia a me nā kaupaku o ka punahelu, a me ka punahelu Varnish polyurethane wai. He mea nō ka malamalama a me ka wela-hoʻopale. Kēia ka aniani moakaka ka penaʻana E ho oku ui e akakaʻi kahińuli i ka nani maoli o ka laau.