Poly­ure­tha­ne foam

Poly­ure­tha­ne (PU) foam is pro­du­ced from polyols and toluy­le­ne diiso­cya­na­te (TDI) or methy­le­ne diphe­nyl iso­cya­na­te (MDI), which are poly­iso­cya­na­tes sup­plied by the petro­che­mi­cal indus­try. Two dif­fe­rent input mate­ri­als, slab­stock and moul­ded foam, are used for fab­ri­ca­ting fle­xi­ble poly­ure­tha­ne foam. Celloflex exclu­si­ve­ly uses cut-to-size slab­stock, which is asso­cia­ted with a num­ber of advan­ta­ges: first­ly, the moul­ded foam pro­cess is very cos­t­ly becau­se it requi­res sophisti­ca­ted tools, which makes this tech­ni­que com­mer­cial­ly via­ble only if items are pro­du­ced in very lar­ge quan­ti­ties. Second­ly, this pro­cess eli­mi­na­tes some of the favoura­ble cha­rac­te­ris­tics of the foam, which inclu­de its breat­ha­bi­li­ty and fle­xi­bi­li­ty.
PU foam is high­ly elastic and porous whilst having a rela­tively low weight, which makes it dif­fer from a lar­ge num­ber of other mate­ri­als. This is why foam is favou­red for a wide ran­ge of app­li­ca­ti­ons in many indus­tries.

Poly­ure­tha­ne foam pro­duc­tion

In the slab­stock fab­ri­ca­ti­on pro­cess, a reac­ti­ve mix­tu­re com­pri­sing polyols and iso­cya­na­te is app­lied to a paper-clad con­veyor in a tra­ver­sing move­ment. This blend is com­bi­ned with water as a foa­ming agent to trig­ger a che­mi­cal reac­tion in which the mix­tu­re expands to 60 times its ori­gi­nal volu­me. Selec­tion of appro­pria­te input mate­ri­als is the key to deter­mi­ning the cha­rac­te­ris­tics of the finis­hed foam pro­duct. The long slab crea­ted during the foa­ming pro­cess is about 2 m wide and 60 m long. Its height varies accord­ing to the spe­ci­fic foam gra­de. This long slab is then put to inte­rim sto­rage in a curing cham­ber until the reac­tion chain is com­ple­ted. In the next step, the slab is cut to the requi­red length. Our core area of exper­ti­se is to cus­to­mi­se such foam slabs in various ways to make them sui­ta­ble for any con­ceiva­ble app­li­ca­ti­on.

Our key strength that makes us stand out from other foam con­ver­ters is our abi­li­ty to pro­vi­de PU foams that exhi­bit a wide varie­ty of pro­per­ties. Among the 75 gra­des that we keep on stock on a per­ma­nent basis are a num­ber of foams with par­ti­cu­lar cha­rac­te­ris­tics such as fla­me-resistant (MVSS 302, CMHR, Crib V) or anti­sta­tic pro­per­ties. This ran­ge is com­ple­men­ted by poly­e­ther and poly­es­ter foams, vis­co­elastic foam, spon­ge foam, reti­cu­la­ted fil­ter foam and many other varie­ties.

Celloflex_Filterschaum Celloflex_Schwammschaum Celloflex_Verbundschaum

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