This invention relates to environmentally acceptable foaming or blowing agents for preparing polymeric foams and to articles made from such foams. In particular the invention relates to compositions for use as foaming or blowing agents that comprise dichloroethylene and a suitable fluorinated ether or ...
Among all industrial blowing agents, ADC is the most economical and most widely applied organic chemical blowing agent. ADC is a type of yellow or light yellow crystal in powder form. Its specific gravity is 1.65 and is nontoxic and odorless. Pure ADC de
Alternative blowing agents for PU foamsdoi:10.1016/0306-3747(95)90386-0NoneELSEVIERAdditives for Polymers
This, in turn, is augmenting the demand for foam blowing agents in the region. China is projected to be a key consumer of foam blowing agents in the near future, owing to the increase in demand for blowing agents for polyurethane foams in the country. Growth in demand for foam blowing ...
1、Blowing Agentsv Introductionv Polymer Foamingv Blowing agent Physical blowing agent Chemical blowing agentvSelection criteria for blowing agent Polymeric foam Definition The substance that produces a cellular structure in a polymer mass is defined as a blowing agent. Function The blowing agents play...
4. A method for testing decomposition characteristics of blowing agents in rubber media has been established. 建立了一种测试发泡剂在橡胶介质中分解特性的方法。 www.chemyq.com 5. The final chapter discusses blowing agents for polymer foams. 最后一章论述吹聚合物泡沫剂。 bbs.hcbbs.com...
Physicalblowingagent Physicalblowingagents(PBA)providegasfortheexpansionofpolymersbyundergoingachangeinphysicalstate. Thechangemayinvolvevolatilisitionofaliquid,orthereleaseofcompressedgastoatmosphericpressure. Commonliquidphysicalblowingagentsarelowboilingliquidandincludeshortchainaliphatichydrocarbonsand ...
YUCHUAN series NC endothermic blowing agents has been specially for giving uniform cell structures and best dispersion in rigid PVC foams, along with no interference in the colour of the product. YUCHUAN series NC endothermic foaming agent has uniform particle size, good dispersion ...
BLOWING AGENTS FOR EXTRUDED POLYSTYRENE FOAM AND EXTRUDED POLYSTYRENE FOAM AND METHODS OF FOAMING 来自 百度文库 喜欢 0 阅读量: 18 申请(专利)号: US201314414531 申请日期: 2013-07-19 公开/公告号: US2015165658A1 公开/公告日期: 2015-06-18
E) if desired blowing agents and F) if desired further additives. The present invention furthermore provides the use of a pressurized, blowing-agent-containing isocyanate semiprepolymer mixture in a pressure container for the production of one-component PU foams by depressurizing the contents of...