Cov yam ntxwv ntawm thermosetting BMC yas

Cov yam ntxwv ntawm thermosetting BMC yas

BMC molded yas pellets muaj cov khoom siv hluav taws xob zoo, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov tshuaj tiv thaiv corrosion, thiab tseem tsim nyog rau ntau yam txheej txheem molding, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm ntau yam khoom. Yog li ntawd, lawv tau nce nyiam los ntawm cov neeg siv.

BMC molding compound yog ib qho thermosetting yas uas sib tov ntau yam inert fillers, fiber reinforced cov ntaub ntawv, catalysts, stabilizers, thiab pigments los tsim cov nplaum "putty nyiam" cov khoom siv sib xyaw siv rau compression molding lossis txhaj tshuaj molding. BMC molding cov ntaub ntawv yog cov puv puv thiab ntxiv nrog cov fibers luv, nrog cov iav fiber ntau ntxiv cov ntaub ntawv suav txog 10% mus rau 30% thiab feem ntau yog qhov ntev ntawm 1/32 nti mus rau 1/2 nti (12.5mm).

Raws li qhov sib txawv ntawm daim ntawv thov zaum kawg, cov ntaub ntawv sib xyaw ua ke tuaj yeem tswj tau raws li qhov loj me, muaj cov nplaim hluav taws zoo thiab ua haujlwm rau cov kab hluav taws xob, lub zog dielectric siab, corrosion kuj thiab stain kuj, zoo heev txhua yam khoom, tsis tshua muaj shrinkage, thiab xim ruaj khov. Cov yam ntxwv ntws, rwb thaiv tsev, thiab nplaim retardancy ntawm BMC molding cov ntaub ntawv yog qhov zoo heev, ua rau lawv haum rau ntau yam kev siv uas xav tau cov ntsiab lus meej thiab qhov ntev. Muaj 75 xim ntawm cov ntaub ntawv xaiv los ntawm, uas tuaj yeem tiv taus cov hmoov txau lossis dej-raws li txheej.

Xwm:

Ib pawg prepreg ua los ntawm kev sib tov luv luv iav fibers nrog unsaturated polyester slurry. Haum rau molding siv molding, hloov moulding, txhaj tshuaj molding thiab lwm yam txheej txheem, cov khoom uas tau muaj zoo mechanical zog, siab seem stability, zoo nto smoothness, zoo heev dej thiab roj kuj, corrosion kuj, kub kuj, thiab zoo heev hluav taws xob kev ua tau zoo, tshwj xeeb tshaj yog cov arc kuj tuaj yeem ncav cuag li 190s.

1. Kev ua haujlwm dav dav: Qhov kev faib ua feem ntawm BMC molding compound (DMC) yog qhov siab, xws li 1.3 txog 2.1; Cov khoom muaj lub ntsej muag ci ntsa iab, txhais tes zoo, thiab lub siab tawv thiab hnyav; Cov cua kub nrog hluav taws yuav tsim cov pa roj ntau thiab tsw ntxhiab ntawm styrene; Qee hom ntawm BMC molding compounds (DMC) yog qhov nyuaj rau ignite, tab sis qee hom yog flammable, tawm hauv inorganic tshuaj tom qab combustion.

2. Dimensional stability: Lub linear expansion coefficient ntawm BMC molding compound (DMC) yog (1.3-3.5) × 10-5K-1, uas yog me dua li ntawm cov thermoplastic plastics. , ua BMC molding compound (DMC) muaj qhov siab ruaj khov thiab raug. Kub muaj qhov cuam tshuam me ntsis ntawm qhov ruaj khov ntawm BMC molding cov ntaub ntawv (DMC), tab sis cov av noo muaj qhov cuam tshuam loj dua. BMC molding cov ntaub ntawv yuav nthuav dav tom qab nqus dej noo. Lub linear expansion coefficient ntawm BMC molding compound (DMC) yog ze heev rau cov hlau thiab txhuas, yog li nws tuaj yeem ua ke nrog nws.

3. Mechanical zog: BMC molding cov ntaub ntawv (DMC) muaj siab tensile, dabtsi yog khoov, cuam tshuam lub zog, thiab creep tsis kam tshaj cov ntaub ntawv thermoplastic.

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