DEVELOPMENT OF CONFIGURATIONS AND COMBINATIONS OF POLYURETHANE FOAM TO PRODUCE MAXIMUM EFFICIENCY IN PACKAGE CUSHIONING MATERIALS.
Abstract
This study was utilized to determine optimum cushioning techniques for various static loads at different drop heights. In order to secure accuracy, all static and dynamic tests were standardized. Also, physical characteristics were determined for all cushioning materials tested. These characteristics include chemical type, TDI index, density, load deflection data and air flow rate. Load bearing limits for the foams were determined. Creep tests were run to determine the static load at which creep begins. The optimum laminating angle and suitable materials for constructing directional pallets were determined. In order to overcome the hindrance caused by side cushions, rotationally directionalized cushions were developed. Shock vectors were investigated in directionalized and non-directionalized cushions. This study proved that shock can be transmitted from the vertical to the horizontal direction if the cushion is directionalized. Engineering criteria were obtained through case drops simulating field conditions as closely as possible. Various constructions were tested and dynamic curves at different drop heights are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1967
- Accession Number
- AD0818455
Entities
People
- Milton Palmer