In this section, HFC, HCFC, HC, and methylal are generally called physical blowing agents.
The potential use of methylal as a co-blowing agent with 245fa seems unsuitable, as it has a higher effective diffusion coefficient.
Moreover, in the presence of methylal or n-pentane the initial value is somewhat higher, probably due to the higher vapor phase thermal conductivity rather than for the mean cell dimension; in fact, n-pentane blown foam shows lower mean cell diameter but higher initial thermal conductivity.
com/prnh/20130307/600769 The Global and Chinese Methylal Industry Report 2014 is a professional and in-depth research report on the global chemical vapor deposition Methylald industry with a focus on the Chinese situation.
Key Topics Covered: Chapter One Methylal Industry Overview Chapter Two Methylal Market Data Analysis Chapter Three Methylal Technical Data Analysis Chapter Four Methylal Government Policy and News Chapter Five Methylal Manufacturing Process and Cost Structure Chapter Six 2009-2014 Methylal Productions Supply Sales Demand Market Status and Forecast Chapter Seven Methylal Key Manufacturers Analysis Chapter Eight Up and Down Stream Industry Analysis Chapter Nine Methylal Marketing Strategy Analysis Chapter Ten 2014-2018 Methylal Development Trend Analysis Chapter Eleven Methylal New Project Investment Feasibility Analysis Chapter Twelve Global and China Methylal Industry Research Conclusions Companies Mentioned:
Also, HFOs, Methyl Formate, and Methylal
are expected to be the key growth areas for blowing agents in the near future.
Session 4 on foaming polyurethanes will include the following presentations: "HFC blowing agents for rigid insulation foams," Lotbar Zipfel and Christoph Meurer, Solvay Fluor, Germany; "Recent developments in the use of HFC-245fa blowing agent for rigid polyurethane foam," Saskia Walraedt, Honeywell, Belgium; "New developments in applications of methylal
as blowing agent for rigid, flexible, integral skin and microcellular polyurethane foams," Michel Beaujean, Lambiotte & Cie, S.