Cov Thermoplastics - cov plastics uas tuaj yeem ua kom mos thiab tawv los ntawm cov cua kub dua dhau ntawm cov kev ntsuas kub thiab nws cov qauv txheej txheem molecular yog linear lossis branched. (Rov ua dua tshiab)
◆ Thermosetting plastics - plastics uas tuaj yeem nkag mus rau hauv cov tshuaj tsis haum hauv qab cua sov lossis lwm yam xwm txheej, thiab nws cov qauv molecular yog thaum kawg lub cev qauv. (Hloov chav yog rov tsis tau)
◆ Resin - taw tes rau qhov sov thaum muaj melting ntau yam, raug kev txom nyem sab nraud quab yuam kom muaj fluidity, cov macromolecule polymer uas qhia lub xeev khov lossis kua hauv lub xeev qis dua qhov kub, nws yog yas yog qhov yooj yim tshaj plaws, kuj yog cov tseem ceeb tshaj plaws , nws cov ntsiab lus hauv cov yas yog hauv 40% ~ 100% feem ntau.Qhov lub ntsiab ntawm plastics txiav txim siab hom thiab theem pib ntawm plastics.
◆ Ua haujlwm ntawm Resin:
(1) Siv kua nplaum lwm cov khoom siv tivthaiv
(2) Muab cov yas plasticity thiab fluidity
◆ Ua Haujlwm ntawm Filler:
Cov khoom siv tseem ceeb tab sis tsis tseem ceeb; Kev Ua Haujlwm: (20 ~ 50%)
Txo cov kev nqus roj noj, txo tus nqi yas;
Txhim kho qee lub zog ntawm plastics thiab nthuav cov ntawv thov ntau ntawm plastics.