Inexpensive plasticizer

Inexpensive plastic dishes can be placed under reagent bottles. There should be beakers beneath burets when they are not in use. Some laboratories cover their reagent shelves with thin sheets of ribbed polyethylene, w hich is available in rolls at a reasonable price. 

Association of simple and inexpensive plastic processes with simple and inexpensive metal processes. 

Inexpensive plastic garbage cans are satisfactory containment tmits for the disposal of small amounts of formulated pesticides. ... 

Webster, J.R., Burns, M.A., Burke, D.T., Mastrangelo, C.H., An inexpensive plastic technology for microfabricated capillary electrophoresis chips. Micro Total Analysis Systems 98, Proceedings pTAS 98 Workshop, Banff, Canada, 13-16 Oct. 1998, 249-252. 

The Fresnel lens concentrator, shown in Figure 1.36 top right, uses refraction rather than reflection to collect the solar energy. These units are molded out of inexpensive plastic and provide higher efficiency than the standard PV collectors. Point-focusing Fresnel lenses are also available. In Figure 1.36 bottom left, parabolic dish collectors are shown. Both the Fresnel lenses and these collectors can be rotated around two axes to continuously track the Sun. 

In pure form PVC is a hard, brittle substance that decomposes easily at the high temperatures necessary to process it. This makes it almost useless. The fact that it has become a high-volume plastic ( =10 billion pounds per year produced in the United States) is a tribute to chemical innovation. Depending on the additives used, PVC can be made rigid or highly flexible, and it can be tailored for use in inexpensive plastic novelty items or for use in precision engineering applications. 

All of the books say that you should dry the mushrooms as rapidly as possible, then place them in air-tight containers and freeze them until ready for use. I have found that an inexpensive plastic food dehydrator, the kind found in discount stores, will dry several dozen mushrooms within four or five hours. This is usually much faster than air or oven drying. When they are completely dry, the consistency of soda crackers,... 

Ground coupled heat pumps may now be feasible, largely due to the availability of durable and Inexpensive plastic pipe. Pipe materials such as polyethylene, FVC, and polybutylene have been found to be adequate In some Instances. However, no material standards or recommended design practices exist to facilitate the optimization of the performance, cost and reliability of these systems. 

After World War II the newer polymers such as poly (vinyl chloride), polyethylene and polystyrene could be produced in large quantities at low cost. They replaced the older polymers such as cellulose nitrate as well as some of the traditional construction materials in some applications including metals, wood, leather and glass to give both technical and economic benefits. Plentiful and inexpensive, plastics lost their previous reputation as special and valuable materials and gained that of worthless and everyday. 

Lower eapital eost because inexpensive plastic material can be used throughout the design... 

Receptacles that provide electric power for operations in hoods should be located outside the hood. This location prevents the production of electrical sparks inside the hood when a device is plugged in or disconnected, and it also allows a laboratory worker to disconnect electrical devices Irom outside the hood in case of an accident. Cords should not dangle outside the hood in such a way that they can accidentally be pulled out of their receptacles or tripped over. Simple, inexpensive plastic retaining strips and ties can be used to route cords safely. For fume hoods with airfoils, the electrical cords should be routed under the bottom airfoil so that the sash can be closed completely. Most airfoils can be easily removed and replaced with a screwdriver. 

Demand for high performance plastics that are suitable to replace conventional materials has helped drive the development of polymer blending processes and techniques. Complementary to this, there is an increasingly strong desire for inexpensive plastics that meet the demands of specific products or applications by combining the properties of multiple single-component polymers. 

POLYETHYLENE A common and relatively inexpensive plastic material (made of repeating units of ethylene) used in protective clothing or as a coating for protective clothing. Also referred to as PE. 

Butyl oleate is a relatively inexpensive plasticizer that is used occasionally to improve processability. Considered a secondary plasticizer, it is relatively inexpensive but has limited compatibility with some elastomers. Butyl oleate can impart significantly better low-temperature properties than many other synthetic ester plasticizers. On the other hand, butyl oleate may be more volatile with less permanence. It is sometimes used in sheeting and hose applications. 

Buddy up with blinds. Even inexpensive plastic miniblinds can help protect your curtains. In direct sunlight or under conditions of extreme heat, draw the blinds. This will keep fabric fibers in curtains, drapes from breaking down, and dyes from fading. 

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