Ingakanani iqondo lobushushu lokutshintsha kweglasi (Tg) yeempuphu zepolymer eziphinda zichithwe?

Ubushushu bokutshintsha kweglasi (Tg) yeepowder zepolymer eziphinda zichithwe bunokwahluka ngokuxhomekeke kulwakhiwo lwepolymer ethile kunye nokwakheka kwayo. Iipowder zepolymer eziphinda zichithwe zihlala zenziwe kwiipolymer ezahlukeneyo, kubandakanya i-ethylene-vinyl acetate (EVA), i-vinyl acetate-ethylene (VAE), i-polyvinyl alcohol (PVA), ii-acrylics, kunye nezinye. I-polymer nganye ine-Tg yayo eyahlukileyo, eli liqondo lobushushu apho i-polymer itshintsha khona ukusuka kwimeko yeglasi okanye eqinileyo ukuya kwimeko yerabha okanye ekrakra.

I-Tg yeepowder zepolymer eziphinda zichithwe ichaphazeleka zizinto ezifana nezi:

1. Ukwakhiwa kwePolymer: Iipolymers ezahlukeneyo zinexabiso le-Tg elahlukileyo. Umzekelo, i-EVA idla ngokuba noluhlu lwe-Tg oluphakathi kwe -40°C ukuya kwi -20°C, ngelixa i-VAE inokuba noluhlu lwe-Tg oluphakathi kwe -15°C ukuya kwi-5°C.
2. Izinto ezongeziweyo: Ukufakwa kwezinto ezongeziweyo, ezifana neeplastiki okanye ii-tackifiers, kunokuchaphazela i-Tg yeempuphu zepolymer eziphinda zichithwe. Ezi zongezo zinokunciphisa i-Tg kwaye zonyuse ukuguquguquka okanye iimpawu zokunamathela.
3. Ubungakanani beenxalenye kunye neMofology: Ubungakanani beenxalenye kunye nemofology yeepowder zepolymer eziphinda zichithwe nazo zinokuchaphazela i-Tg yazo. Iinxalenye ezincinci zinokubonisa iipropati ezahlukeneyo zobushushu xa kuthelekiswa neenxalenye ezinkulu.
4. Inkqubo Yokuvelisa: Inkqubo yokuvelisa esetyenziselwa ukuvelisa iipowder zepolymer eziphinda zichithwe, kuquka iindlela zokomisa kunye namanyathelo emva konyango, inokuchaphazela i-Tg yemveliso yokugqibela.

Ngenxa yezi zinto, akukho xabiso linye le-Tg kuzo zonke iipowder zepolymer ezinokuphinda zichithwe. Endaweni yoko, abavelisi badla ngokubonelela ngeenkcukacha kunye namaphepha edatha yobuchwephesha aquka ulwazi malunga nokwakheka kwepolymer, uluhlu lwe-Tg, kunye nezinye iimpawu ezifanelekileyo zeemveliso zabo. Abasebenzisi beepowder zepolymer ezinokuphinda zichithwe kufuneka bajonge la maxwebhu ukuze bafumane amaxabiso athile e-Tg kunye nolunye ulwazi olubalulekileyo olunxulumene nezicelo zabo.