Rigid foam core khoom Cov neeg sawv cev cov khoom lag luam thiab kev siv tshiab ntawm polyurethane, phenolic resin, PET, PVC, SAN, PES thiab lwm yam ntaub ntawv ua npuas ncauj

Rigid foam core khoom Cov neeg sawv cev cov khoom lag luam thiab kev siv tshiab ntawm polyurethane, phenolic resin, PET, PVC, SAN, PES thiab lwm yam ntaub ntawv ua npuas ncauj

Cov txheej txheem ua npuas ncauj yog cov khoom siv sib xyaw, feem ntau yog cov thermoset polymer (tab sis tuaj yeem yog cov thermoplastic) ua ke nrog cov roj tsis muaj zog (xws li nitrogen) lossis cov tshuaj tshuab tshuab thaum lub sijhawm molding.Qhov tshwm sim tsis yog cov khoom siv, tab sis muaj qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom.

Cov tub ntxhais ua npuas ncauj txo qhov hnyav tag nrho ntawm cov khoom, thaum cov tawv nqaij ruaj khov ua rau nws muaj zog thiab cuam tshuam-resistant.Cov khoom siv cov qauv zoo ib yam li cov qhaub cij, nrog rau cov tub ntxhais uas tsis tshua muaj ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom.Vim nws qhov tshwj xeeb kev ntxhib los mos, rigid structural foam cores feem ntau yog 20% ​​mus rau 40% sib zog dua cov khoom polymers, aluminium, steel, sheet molding compound, los yog lwm yam khoom siv.Vim nws qhov tsis muaj zog, cov khoom siv hauv paus siv los ua cov qauv ua npuas ncauj feem ntau yog cov thermoplastic polymers ntau dua li cov thermosets.Feem ntau siv cov thermoplastics suav nrog, tab sis tsis txwv rau: polyurethane, polycarbonate, polyphenylene ether (Noryl), polybutylene terephthalate (Valox) thiab acrylonitrile butadiene styrene thiab lwm yam ntaub ntawv tseem ceeb: polyurethane, phenolic Resin, PET, PVC, SAN, PES foams sawv cev. cov khoom, kev lag luam thiab kev siv tshiab.

Polyurethane ua npuas ncauj core yog tsim los ntawm CFC dawb foamed polyurethane, ib tug kaw cell core uas muaj peev xwm tsim facestocks, boards thiab kev cai cov khoom ntawm ntau ntom thiab thicknesses, thaum siab ceev, nplaim retardant rigid polyurethane ua npuas ncauj ntawv ntoo, blocks los yog moldings kuj muaj.Nqi-zoo, ntau yam thiab ruaj khov.Thaum cov txheej txheem ntawm polyurethane ua npuas ncauj cores yuav tsis haum rau kev thov ntau dua, lawv tau siv dav los ua kom tuab, tsim cov duab sib luag, insulating zoo, thiab flotation.

Polyurethane ua npuas ncauj cores yog ib qho kev xaiv tsis tshua muaj nqi rau cov tuam txhab tsim khoom.Rigid polyurethane ua npuas ncauj yog siv rau flotation, rwb thaiv tsev los yog ua cov khoom tseem ceeb xws li kom nce marine risers, hulls thiab lwm yam marine buoyancy daim ntaub ntawv.

Daim txhuam cev txiav tshuab