Search results
Results from the WOW.Com Content Network
The most common application of polyurethane is as solid foams, which requires the presence of a gas, or blowing agent, during the polymerization step. This is commonly achieved by adding small amounts of water, which reacts with isocyanates to form CO 2 gas and an amine , via an unstable carbamic acid group.
Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...
A Daily Telegraph article on the study described the enjoyment of new car smell as "akin to glue-sniffing". [11] However, another study showed no toxicity from new car odors in lab grown cells. The odors did trigger an immune system reaction. [12] The most common side effects of the new car smell are headaches, sore throats, nausea, and ...
For premium support please call: 800-290-4726 more ways to reach us
Those who perform floor and other surface cleaning tasks (e.g., floor waxing) and who use quaternary ammonium, alcohol, and chlorine-based products are associated with a higher VOC exposure than the two previous groups, that is, they are particularly linked to exposure to acetone, chloroform, α-pinene, 2-propanol or d-limonene.
It did not have the usual new-car smell, but instead a very strong and offensive rubber, industrial smell. We were assured by the dealer that this would go away. It has subsided some, but after ...
The smell is caused by leaking propane gas coming from an unmapped pipe in the sloping road near the shoe store. The gas goes undetected due to faulty gas searching techniques. Then, an air conditioner with bad wiring is switched on, starting a spark that ignites the propane and the store explodes, claiming 33 lives.
Natural gas leaks happen nearly every day in the U.S. — and they can be deadly if they go undetected. A report from a group of Texas environmental nonprofits released in June found around 2,600 ...