Blowing Agent


Also found in: Medical.

blowing agent

[′blō·iŋ ‚ā·jənt]
(materials)
A chemical added to plastics and rubbers that generates inert gases on heating, causing the resin to assume a cellular structure. Also known as foaming agent.

Blowing agent

Compound used in producing foam insulation. Mixed as a liquid with the foam ingredients under pressure, the blowing agent evaporates, creating gas bubbles that provide the insulation.

Blowing Agent

 

a substance used in the manufacture of porous materials to create a system of connecting pore channels or isolated pore cells in an initially dense body (medium).

Blowing agents include various organic and mineral compounds, such as Porofors and carbonates, which generate gases upon decomposition or upon reacting with the components of the solidifying product—for example, a synthetic resin or concrete mix. A second type of blowing agent is a substance that is added to a material as a filler and then washed out of the solid intermediate product with solvents. Blowing agents are used in the manufacture of porous articles and materials made of plastic, rubber, cement, clay, glass, and metal.

References in periodicals archive ?
Intensive mixing is required to achieve a homogeneous polymer-gas-solution, whereas high pressures are essential to keep the blowing agent in solution [3, 4], Mixing of the polymer-gas mixture is achieved by screws with special mixing elements [5], To compensate for the drop in viscosity caused by the blowing agent, overlength single-screw extruders, tandem-lines, or additional melt-cooling-units are applied to cool the melt and bring the viscosity up to the process window for foaming [6].
Honeywell Solstice Liquid Blowing Agent Named Winner of 2015 Polyurethane Innovation Award by Center for the Polyurethanes Industry
Also, since physical blowing agent is injected into the primary extruder, the screw in the extruder plays an important role in dispersing the blowing agent into extremely fine droplets.
The combination of the blowing agent and the hot-melt com pound, at recommended high contents, makes it possible to very greatly reduce an expansion ratio and therefore a thickness of the rubber layer once the pneumatic tire is vulcanized, without affecting noise absorption properties provided by the blowing agent.
Key Topics Covered: 1 Introduction 2 Executive Summary 3 Premium Insights 4 Market Overview 5 Blowing Agent Market, By Product Type 6 Global Blowing Agents Market, By Foam Type 7 Global Blowing Agents Market, By Geography 8 Competitive Landscape 9 Company Profiles Companies Mentioned:
a leading Japanese manufacturer of industrial products, has adopted Honeywell s next-generation SolsticeA Liquid Blowing Agent (LBA) for use in its line of spray polyurethane foam (SPF) building insulation sold under the trade name Achilles Airlon FR-FO.
New Jersey USA-based avionics technology and manufacturing firm Honeywell (NYSE: HON) said that its Solstice Liquid Blowing Agent has been selected as a component in the spray foam roofing system for the Cleveland Airport System including multiple terminal and maintenance buildings at Cleveland-Hopkins International and Burke Lakefront airports.
Extrusion Dies Industries, LLC (EDI), of Chippewa Falls, Wisconsin, USA, has announced a new die system for extruded polystyrene (XPS) foam board that "dramatically reduces downtime for product changeovers, enabling manufacturers to offset much of the loss in productivity caused by switching to a non-ozone-depleting blowing agent.
Honeywell is developing a new low-global-warming-potential blowing agent for energy-efficient polyurethane foam insulation.
After a historical perspective on foam development, chapters cover blowing agent evolution and its role in foam extrusion and injection molding, give examples of sustainable foam development, and describe novel foam products such as nanocomposite foam and energy security foam.
The Honeywell material, which should be available in sample quantities later this year, is a non-flammable liquid that the company says will offer performance benefits comparable to those of other fluorocarbons, but with a low global-warming potential, in addition, the blowing agent will have an atmospheric lifetime of just a few days.
Honeywell today said it is developing a new blowing agent for energy-efficient polyurethane foam insulation with lowered greenhouse gas emissions.