Iron-Containing Hypercrosslinked Composite Prepared From Polystyrene Foam Plastic in the Sorption of Toxic and Foul-Smelling Substanc

A convenient method for obtaining an iron-containing hypercrosslinked polystyrene composite based on foam plastic waste is developed. The iron-containing composite can be used for the sorption of hydrogen sulfide, toxic organic solvents, as well as foul-smelling and toxic products of degradation of natural remains—putrescine, cadaverine, indole, and skatole.

Cassette technology for the production of polystyrene foam without a press

Today, there are several ways to obtain polystyrene foam. Unfortunately, not every constructive solution, being suitable for solving heat engineering and other problems, turns out to be optimal in terms of creating a heat-insulating, noise and sound-absorbing material that meets the following requirements: energy saving, energy efficiency, minimization of waste generation during its manufacture, increasing labor productivity and reducing costs. We have created a cassette technology for producing polystyrene foam without a press. The proposed technology makes it possible to obtain polystyrene plates of the required thickness with a compacted surface layer, simplifies the design for the formation of polystyrene plates, reduces the cost of foam plastic production, and creates ease of maintenance and obtaining up to ten foam plastic sheets in one cycle at a time. The advantage of the technology is that each foam sheet of the required thickness has a compacted surface layer, which reduces the water and moisture absorption of the foam and leads to an increase in the energy efficiency of the resulting plates and the disappearance of waste. In addition, this block form has a simplified design, it doesn't require pneumatic and hydraulic cylinders, pumps, etc., which reduces the cost of foam plates, facilitates labor and ensures the safety of operation of this equipment. Also, this unit is mobile, it can be used on a construction site, which is important for northern territories characterized by active development of oil and gas fields, placing it in shift camps of the oil and gas industry in the Arctic for the production of construction cabins and trailers for shift workers.

Operation properties estimate of carbamide foam plastic modified with carbon fiber

There is investigated the concentration impact of the filler inserted into polymeric foams for its radio-absorbing properties improvement upon some their operation characteristics. The investigation objects are carbamide- formaldehyde plastic foams and carbon fiber of Uglen 9R type. The purpose of investigation is the estimate of strength properties of radio-absorbing polymeric foams modified with carbon fiber and the analysis of a filler concentration impact upon adhesion and strength during compression.

The temperature - insulative material that can work as the insulation and siding and decorative material

The article analyzes the new temperature - insulative materials. It is motivated that the temperature - insulative material capable to work in the panel as a temperature insulative and facing-decorative material can be only composite type. The composition of the new material, the technology of its production, as well as the mathematical model of the mechanism of formation of strong crusts at its surfaces. The material that is used for the manufacture of roofing panels, panels BKU with an internal non-metallic layer. These panels allow you to break the bridges of cold in butt joints, which improves thermal performance, reliability and durability of the building as a whole. Based on the developed mathematical model, you can predict the properties of foam plastic.

Thermal - insulation material for frame panels with an internal non-metallic layer

The foam plastic capable to work in frame panels as a thermal - insulation and facing and decorative material can be only of composite type. We have developed a new type of composite foam plastic, its density increases from center to surfaces. The article presents the composition of new material, the technology of its production, as well as the mathematical model of the mechanism of formation of strong crusts at its surfaces. Microscopic analysis of the composite showed that the density of crust is more than 200 kg / m3, the density of the foam plastic in its middle part is 80 kg / m3. The limit of strength at punching it by the rod diameter 0.01 m reaches 3.5 MPa. The material is used for the manufacture of roofing panels, frame panels with an internal non-metallic layer.

On the Research of Environmental Mineral Material Preparation and Application

In the part of the paper, use bentonite as a basic material synthesis with phenolic aldehyde foam plastic. The experiment mainly researched into the capacity of the synthesis to purify and store rain water. The results show that, water absorption polymerphenolic aldehyde foams addition to environmental mineral material can promote the capacity of purifying rain water greatly, with 10 percent of bentonite, the removal of BOD5 in the rain water can be promoted to 90 percent, CODs to 80 percent, during which the removal turbidity can be 83 percent. While use bentonite only, the removal rate of BOD5 can only be 62 percent, the removal rate of COD can be 20 percent, and the removal rate of turbidity can be 68 percent. So it depends on the locals pollution conditions to choose environment mineral material to purify the rain water effectively. When choosing bentonite as basic material to synthesis with phenolic aldehyde foam plastic, the polymers water absorption rate and rate of water loss to rain water change with different proportion of bentonite. Through the purify rain water test with plants cultivated in environmental mineral material, purify layer and storage layer can meet all the requirements including the function of purifying and storing rain water, exhibit benefit of the synthesis polymer.