Accession Number : AD0735336

Title :   Evaluation of Organic Carbonaes as Components of Low Hygroscopic Brake Fluids.

Descriptive Note : Final rept.,

Corporate Author : ARMY COATING AND CHEMICAL LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Jordan,Charles B. ; Jamison,Robert G.

Report Date : NOV 1971

Pagination or Media Count : 21

Abstract : The object of the study was to evaluate organic carbonates as components of low hygroscopic brake fluids. Propylene carbonate and glycol ether carbonates were screened as brake fluid components and subjected to tests listed in Federal Specification VV-B-680. Stability of the carbonates was determined by refluxing mixtures of the carbonates with various conventional brake fluids and their components and measuring CO2 evolution. It was concluded that none of the carbonates tested would be satisfactory brake fluid components due to their chemical instability, which could result in vapor locking of the brake system. (Author)

Descriptors :   (*HYDRAULIC FLUIDS, *CARBONATES), (*HYDRAULIC BRAKES, HYDRAULIC FLUIDS), ESTERS, BOILING POINT, ADDITIVES, DECOMPOSITION, WATER

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE