Kev xaiv cov ntaub npuag yuav tsum muaj kev paub txog electrochemical los xyuas kom meej qhov zoo tshaj plaws ntawm cov khoom flocked. Kev xaiv ntawm pab yaj, nplaum, thiab xim yog qhov tseem ceeb heev.
Flock: Nylon fiber ntau thiab viscose yog cov khoom siv viscose tshaj plaws. Nws cov khoom siv raw yog ntoo, uas tau ua tiav qee yam. Lub℃ntawm polymerization yog nyob ib ncig ntawm 250-500, thiab cov crystalline cheeb tsam ntawm cov fiber yog li ntawm 30% -40%. Qhov siab crystalline cheeb tsam no ua rau cov xim nkag mus tsis zoo, yog li ua rau nws nyuaj rau ua tiav cov xim dub sib sib zog nqus, xav tau cov txheej txheem dyeing tshwj xeeb thiab pigments. Tsis tas li ntawd, vim qhov qis dua ntawm polymerization, lub zog fiber ntau tsis zoo li nylon.
Nylon fiber yog cov khoom siv polymer ua los ntawm diaminocarbamic acid lossis propionamide thiab organic diacids txuas los ntawm amides. Nws muaj lub zog siab, hnav heev -resistant, ruaj, thiab muaj qhov elasticity ntau. Cov khoom siv feem ntau muaj xws li nylon 6 thiab nylon 66. Qhov tsis zoo ntawm nylon 66 yog tias nws yellows ntawm 66 degrees Celsius, ua nplaum thiab softens ntawm 230 degrees Celsius, thiab tag nrho melts ntawm 250 degrees Celsius. Qhov tsis zoo ntawm nylon ntawm 6 degrees Celsius yog tias nws softens ntawm 180 degrees Celsius thiab tag nrho melts ntawm 215 degrees Celsius.
Adhesives Cov adhesives siv hauv flocking yog muab faib ua tus kheej -crosslinking adhesives thiab sab nraud crosslinking nplaum.
(1) Self-crosslinking adhesives muaj pawg hauv lawv cov molecules uas tso cai rau cov saw hlau molecular hla lawv tus kheej, xws li hydroxymethyl (-CH2-}OH) thiab epoxy (-CH-CH2). Lawv kuj muaj ib pawg copolymerizable, hydroxymethylacrylamide (CH2=CH-SONHCH2OH) los yog glycidyl methacrylate (CH2=C-COOCH2-CH-CH2), uas qhib ob daim ntawv cog lus thiab koom nrog cov tshuaj tiv thaiv thaum copolymerizing nrog lwm cov monomer.
Tam sim no, ob hom adhesives yog siv nyob rau hauv flocking. Tus kheej -crosslinking adhesives muaj lub neej txee ntev dua. Siv ib qho me me ntawm tus neeg sawv cev crosslinking kom qhov tob ntawm crosslinking yog qhov tsim nyog rau kev txhim kho flocking ceev. Sab nraud crosslinking adhesives, ntawm qhov tod tes, yuav tsum tau ntxiv qee tus neeg sawv cev crosslinking thiab catalyst ua ntej siv, thiab yuav tsum tau siv tam sim tom qab kev npaj; txwv tsis pub, crosslinking yuav tshwm sim ntawm chav tsev kub, cuam tshuam rau lawv cov kev ua tau zoo.
