Substitute Foaming Agent for the Manufacture of Part 572Dummy Flesh Components.

摘要

The work reported was undertaken to find a substitute foaming agent for Nitrosan in the manufacture of vinyl foam flesh parts of crash test dummies conforming to the Code of Federal Regulations,Chapter 49,Part 572. Substitute flesh formulations were successfully foamed in the laboratory with an agent comprising a combination of p,p'-oxybis-(benzene sulfonyl hydrazide) and t-butyl peroxypivalate. The components are available commercially from a variety of domestic suppliers,entail no cost penalty,and present no unusual use hazards. The foams were molded over a suitable,broad thickness range at appropriate densities. Properties were comparable,but not identical,to those of Nitrosan foams,with indicated advantages in resistance to aging and low compression set. The new foams were optimized in structure and physical properties by further formulation development. All requisite dummy skin/flesh parts were produced successfully and reproducibly at a commercial facility with conventional equipment for Nitrosan parts. Batchwise variations in plastisol activity were readily accomodated by minor formula modification. All parts were of suitable external and internal quality. Two complete sets of parts were furnished to NHTSA for further evaluation. (Portions of this document are not fully legible)