Polyurethane Mwaluso: Features ndi specifications

Polyurethane zomatira ndi chinthu ndi zambiri nyota. Chief mwa iwo amagwiritsidwa ntchito mwanjira zosiyanasiyana. Thiabendazole angagwiritsidwe ntchito pa gluing miyala pamalo a galasi, zitsulo, matabwa, ceramic, polyurethane ndi polystyrene, komanso chiwerengero cha zipangizo. Izi ndi chifukwa guluu wolimba mkulu wa zikuchokera kwa mitundu yonse ya zipangizo. Monga binder ndiye akutumikira polyurethane, momveka bwino kwa mutuwo.

Pawiri ndi thandizo pamalo ake zipangitsa kukana mankhwala, monyanyira kutentha, pomenyana zinthu zosiyanasiyana za chilengedwe, kutentha ndi chinyezi. Chotero pawiri akhoza opareshoni mu lonse kutentha osiyanasiyana kuchokera -60 kuti +120 madigiri Celsius. Komanso, polyurethane zomatira imapereka kugwirizana kwambiri, ndi wolimba ndi zotsatira za zochitika monga amatha kuumba ndi bowa tizilombo. podvspenivaniya katundu limakupatsani onetsetsani kuti danga pakati pa kali kogwirizana akhala kwathunthu wodzazidwa iwo. Pakalibe mu solvents ndi zofukiza zipangitsa chitetezo pazipita pa ntchito.

Pali ziwiri chigawo chimodzi ndi chimodzi chigawo polyurethane zomatira. Yachiwiri ndi yosavuta kugwiritsa ntchito ndi magwiritsidwe antchito kwambiri. Mu dongosolo lake pali prepolymers isocyanate. Chifukwa kukhuthala mkulu wa mankhwala amapereka kwambiri koyamba kolowera. yatikhudza isocyanate ndi chinyezi mumlengalenga kumabweretsa mankhwala anachita. Zotsatira zake ndi mapangidwe kumangidwa mtanda maselo, kotero kuti kugwirizana amakhala amphamvu kwambiri.

Ziwiri zikuluzikulu polyurethane zomatira lili akuphatikizapo angapo zigawo zikuluzikulu zomwe pamene ntchito yekha ndi otsika kukhuthala. Pokhapokha kusanganikirana makina anachita isocyanate pawiri ndi wothandizila polyol kuchiritsa, zotsatira boma ntchito ya zomatira ndi. Sakanizani zigawo zikuluzikulu zofunika ndi mwambo mosamala zinazake ndondomeko, i.e. anapangira anakhumba, kutalika kwa nthawi ndi kutentha. Pamene njira yolondola ndondomeko ya ntchito mogwirizana kwa zigawo zikuluzikulu. Zosagwirizana ndi zinthu zonse kumabweretsa mfundo yakuti mphamvu makhalidwe mgwirizano mwa polyurethane ndi zomatira kukhala kwambiri mkulu.

Zomatira zochokera polyurethane akhoza kukhala thandizo lalikulu mu kuika parquet pansi. Kuti zinthu Russian Ndi bwino kugwiritsa ntchito formulations ziwiri ofiira mulibe solvents kapena madzi. Nyimbo amenewa amatha kupirira pafupifupi aliyense katundu ntchito, kotero iwo ayenera kugwiritsidwa ntchito atagona bolodi kapena zosiyanasiyana. The polyurethane zomatira ingagwiritsidwe ntchito pafupifupi mitundu yonse ya zapansi popanda kuyambirira priming. Zotsala za dongosolo kuchotsa zokwanira basi. Polyurethane zomatira zipangitsa mkulu kukameta ubweya mphamvu.