Ɔkwan a Wɔfa so Yɛ Prepolymer:
Prepolymer foaming nhyehyɛe no hwehwɛ sɛ wodi kan siesie prepolymer fi (afã fitaa) ne (afã tuntum). Afei, wɔde nsuo, catalyst, surfactant, ne nneɛma foforɔ a wɔde ka ho ka prepolymer no ho na wɔde fra wɔ ahoɔhare kɛseɛ-stirring ase ma ɛma foaming. Sɛ wɔsa no yare wie a, wɔma ɛyɛ kɛse wɔ ɔhyew pɔtee bi mu.
Semi-Prepolymer Ɔkwan a wɔfa so yɛ adwuma:
Semi-prepolymer foaming nhyehyɛe no hwehwɛ sɛ wodi kan siesie prepolymer fi polyether polyol (afã fitaa) ne diisocyanate (afã tuntum) fã bi mu. Afei, wɔde polyether anaa polyester polyol, diisocyanate, nsu, catalyst, surfactant, ne nneɛma afoforo a wɔde ka ho no fã a aka no ka ho na wɔde fra wɔ ahoɔhare kɛse-kankan ase ma ɛma ahurututu.
Baako-Anamɔn Foaming Adeyɛ:
Wɔ saa adeyɛ yi mu no, wɔde polyether anaa polyester polyol (afã fitaa) ne polyisocyanate (afã tuntum), nsu, catalyst, surfactant, foaming agent, ne nneɛma afoforo a wɔde ka ho ka ho wɔ anammɔn biako mu na wɔde fra wɔ ahoɔhare kɛse-mframa ase ansa na wɔayɛ foaming.
One-step foaming nhyehyɛe no ne adeyɛ a wɔtaa de di dwuma. Ɔkwan foforo ne nsa a wɔde yɛ ahuru, na ɛno ne nea ɛyɛ mmerɛw sen biara. Kari nneɛma a wɔde yɛ nneɛma no nyinaa pɛpɛɛpɛ, fa gu ade mu, na fa fra yiye ntɛm ara. Afei hwie afrafrade no gu nkuku no mu anaa baabi a ɛsɛ sɛ wɔhyɛ foam plastic ma no. Hyɛ no nsow: Sɛ worekari a, hwɛ hu sɛ wode polyisocyanate (ade tuntum) no bɛka ho nea etwa to.
Mpɛn pii no, wɔde polyurethane ahuru a ɛyɛ den no yɛ ahuru wɔ dan mu hyew mu, na ɔkwan a wɔfa so yɛ no nyɛ den koraa. Wobetumi agyina sɛnea mfiri a wɔde yɛ adwuma wɔ adansi mu no so akyekyɛ mu ayɛ no nsa a wɔde yɛ ahuru ne mfiri a wɔde yɛ ahuru; gyina nhyɛso a ɛba bere a ɛreyɛ ahuru no so no, wobetumi akyekyɛ mu ayɛ no ahurututu a nhyɛso kɛse-nhyɛso wom ne ahurututu a ɛba fam-nhyɛso; gyina ɔkwan a wɔfa so nwene so no, wobetumi akyekyɛ mu ayɛ no casting foaming ne spraying foaming.