Advantages of Silyl-Terminated Polyacrylate (NTP) Sealant
A silyl-terminated polyacrylate was mixed with fillers, plasticizers, heat stabilizers, light stabilizers, UV absorbers, silane coupling agents, and hardening catalysts. This mixed material, referred to as NTP sealant, was used in all the tests reported in this paper.
FIG. 4—Curing mechanism of NTP.
TABLH 1—Properties of commercial sealants studied.
Yelechelic polyaerylatc scalaal (xilyl-terminaied polyaerylale sealant). bCommercial water-borne acrylic sealant.
‘Commercial polyurethane sealant.
‘‘Commercial silyl-terminatetl polyether sealant.
‘Commercial silicone sealant.
fM50: Modulus at 50 ‘/< elongation. MIOO: Modulus at MX) ‘/< elongation, Tb: Tensile strength at break, Eh: Elongation at break.