SMC rwb thaiv tsev board manufacturers tham txog cov yam ntxwv ntawm cov ntaub ntawv rwb thaiv tsev

①Plastics feem ntau yog qhov hnyav, ruaj khov, thiab yuav tsis xeb;

② Muaj kev cuam tshuam zoo;

③Nws muaj pob tshab zoo thiab hnav tsis kam;

④ Cov rwb thaiv tsev zoo thiab thermal conductivity tsawg;

⑤ General formability, zoo colourability, tsawg ua nqi;

⑥Plastics feem ntau muaj cov cua sov tsis zoo, siab thermal expansion tus nqi thiab yooj yim rau hlawv;

⑦ Kev ruaj ntseg tsis zoo thiab yooj yim deformation;

⑧ Feem ntau cov yas muaj qhov tsis zoo ntawm qhov kub thiab txias thiab ua rau qhov kub thiab txias;

⑨ Yooj yim rau hnub nyoog;

⑩ Qee cov yas tau yooj yim soluble hauv cov kuab tshuaj.

Cov yas tuaj yeem muab faib ua ob pawg: thermosetting thiab thermoplastic. Lub qub tsis tuaj yeem hloov kho thiab siv tau, thiab qhov kawg tuaj yeem rov ua dua. Muaj ob hom qauv ntawm cov yas polymers:

Thawj yog cov qauv linear, thiab cov polymer compound nrog cov qauv no yog hu ua linear polymer compound;

Qhov thib ob yog lub cev hom qauv, thiab cov polymer compound nrog cov qauv no yog hu ua lub cev hom polymer compound.

Qee cov polymers muaj branched chains, hu ua branched polymers, uas belongs rau ib tug linear qauv. Txawm hais tias qee cov polymers muaj kev sib txuas ntawm cov molecules, lawv tsis tshua muaj kev sib txuas, uas yog hu ua lub network qauv thiab belongs rau lub cev qauv. Ob lub qauv sib txawv, uas qhia txog ob qho khoom sib txawv. Cov qauv linear (xws li cov qauv branched) polymers muaj cov yam ntxwv ntawm elasticity thiab plasticity vim muaj kev ywj pheej molecules, uas tuaj yeem yaj hauv cov kuab tshuaj, tuaj yeem yaj los ntawm cua sov, thiab muaj qhov nyuaj thiab brittleness. Txij li thaum tsis muaj kev ywj pheej macromolecules, lub cev zoo li lub cev polymer tsis muaj elasticity thiab plasticity, tsis tuaj yeem yaj thiab yaj, tab sis tsuas yog tuaj yeem o, thiab muaj siab hardness thiab brittleness. Plastics muaj ob lub qauv ntawm cov polymers, thermoplastics ua los ntawm linear polymers, thiab thermosetting yas ua los ntawm tej polymers.