Polyurethane Adhesive: nta thiab specifications

Polyurethane lo yog ib yam khoom uas muaj ib tug ntau ntawm txoj hauj lwm zoo. Chief ntawm lawv yog nws cov versatility. Nws yuav siv tau rau gluing pob zeb, tej chaw ntawm cov iav, hlau, ntoo, tej hub, polyurethane thiab polystyrene, raws li zoo raws li ib tug xov tooj ntawm lwm yam ntaub ntawv. Qhov no yog vim lub high adhesion ntawm muaj pes tsawg leeg rau tag nrho cov hom ntawm cov ntaub ntawv. Raws li phau ntawv ces ua hauj lwm pab polyurethane, hais tias yog tseeb los ntawm lub npe.

Tiabsis cov nrog nws pab chaw kom kuj mus tshuaj, kub extremes, ntau yam attacking yam tseem ceeb ntawm cov ib puag ncig, high kub thiab dej. Xws li ib tug compound yuav ua nyob rau hauv ib tug ntau ntau yam kub los ntawm -60 mus +120 degrees Celsius. Nyob rau hauv tas li ntawd, polyurethane nplaum muab ib tug muaj zog kev twb kev txuas, yog ruaj khov rau cov teebmeem ntawm phenomena xws li pwm thiab pathogenic fungi. podvspenivaniya vaj tse tso cai rau koj kom paub tseeb tias qhov chaw ntawm cov tsevneeg chaw tau raug kiag li sau lawv. Qhaj ntawv nyob rau hauv lub kuab tshuaj thiab tsw kuas nyiaj pab ntau tshaj kev ruaj ntseg thaum lub sij hawm lub lag luam.

Muaj yog ib tug ob-tivthaiv thiab ib-feem polyurethane nplaum. Qhov thib ob xaiv yog ib qho yooj yim mus use thiab zoo usability. Nyob rau hauv nws cov qauv muaj isocyanate prepolymers. Vim lub high viscosity ntawm cov khoom muab rau yav tom ntej pib qhov chaw. reacting isocyanate nrog atmospheric dej ua rau yus ib yam tshuaj cov tshuaj tiv thaiv. Nws tshwm sim yog lub tsim ntawm tus ntoo khaub lig-molecular bonds, yog li ntawd lub kev twb kev txuas yuav muaj zog heev.

Ob-tivthaiv polyurethane nplaum muaj nyob rau hauv nws cov qauv ib tug ob peb lub Cheebtsam uas thaum siv ib leeg muaj ib tug tsawg viscosity. Tsuas yog tom qab tus neeg kho tshuab mixing ua isocyanate compound thiab ib tug polyol tua neeg sawv cev, uas tau nyob rau hauv ib tug ua hauj lwm lub xeev ntawm cov nplaum. Tov lub Cheebtsam tsim nyog nrog ceev faj ua kevcai nco txog tej yam txheej txheem tej yam kev mob, i.e. cov yam proportions, qhov ntev ntawm lub sij hawm thiab kub. Thaum qhov tseeb mus kom ze rau lub txheej txheem ntawm lub sis ntawm Cheebtsam. Raws li nrog tag nrho cov tej yam kev mob ua rau lub fact tias lub dag lub zog yam ntxwv ntawm cov kev twb kev txuas los ntawm txoj kev ntawm ib tug polyurethane nplaum ua tsis tshua muaj neeg siab.

Nplaum raws li polyurethane yuav ua tau ib tug zoo kev pab nyob rau hauv pw lub parquet pem teb. Rau Lavxias teb sab tej yam kev mob nws yog pom zoo kom siv ib ob-tivthaiv formulations uas tsis muaj cov kuab tshuaj los yog dej. Tej compositions yog tau mas suab tej kev khiav hauj lwm load, li ntawd, lawv yuav tsum tau siv rau tso board los yog array. Lub polyurethane nplaum yuav tsum muaj ntaub ntawv rau yuav luag tag nrho cov hom ntawm bases tsis tau yam ua ntej priming. Remnants ntawm lub system kom tshem tawm cia li txaus. Polyurethane nplaum kom ib tug high shear zog.