insulation and dimensional stability of the foam. The standard formulation used contained 40 parts by weight of a sucrose-based polyether polyol, 30 parts by weight of an aromatic amine initiated polyether polyol, and 30 parts by weight of an aliphatic amine initiated polyether polyol, corresponding...
A rigid material for heat-insulation and/or buoyancy, consisting of a mixture of: (a) a matrix of a uniform cross-linked elastomeric polymer mixture and a liquid insulating plasticizer compound and (b
UL Rigid Conduit American Standard PVC Electrical Wire Heat Insulation Cable Sleeve ≡≡ PRODUCT Details ≡≡ PRODUCT DESCRIPTION Trade Sizes: 1/2,3/4,1,1-1/4,1-1/2,2,2-1/2,3,3-1/2,4,5,6 Flame Retardant: V0 fire rating. Ageing Resistence: ...
Grey 20mm 25mm Custom SCH80 SCH40 Pipe Plastic Conduit Bend Adapters PVC Rigid Clamp Electrical Pipe Fittings 1. Product Information: 1) Non-conductive: Good insulation, assuring a safe system. 2) Smooth surface: Small friction coeffi...
IV 24-20 AWG Wire/Cable Insulation Support Crimp Receptacle Strip RoHS: Compliant | pbFree: Yes 搜索 602427301412000[更多] AVX Corporation 20 Position 2.54 mm Pitch 12 Keys Per Strip White Standard Card Edge Connector RoHS: Not Compliant | pbFree: No 搜索 英国2号仓库 仓库直销,订单金额...
As an important application for these foams is in thermal insulating applications, in the usual foam manufacturing process the foam formulation will be mixed and placed into an enclosed space where thermal insulation is needed. The formulation then reacts and expands to form the foam in situ. The...
Tensile strength - ultimate (psi) 438 389 436 476 511 Elongation - ultimate (%) 9 8 12 9 8 Elongation - yield (%) 9 8 12 9 8 Charpy Impact (ft · lbf/in2) 1.3 0.7 0.8 1.2 1.1 Heat Sag (4″overhang, at 250° F., 9 1 1 1 1 1 hr) (mm) Drop tower impact at 18 J ...
superior to those foams blown with CFCs or HCFCs; structural performance, such as compressive strength and long term dimensional stability, is comparable or better than foam blown with CFCs or HCFCs; and initial and long term insulation performance comparable to those foams blown with CFCs or ...
Rigid foams generally have good insulative properties and are thus desirable for use in building insulation. As with all building materials, it is desirable to provided rigid foams that are as fire resistant as possible. One approach to this goal is to modify the polyol. Polyisocyanurate foams ar...