Polyvinyl chloride rigid

Rigid polyvinyl chloride Cellulose acetate butyrote Nylon (dry)... 

FIG. 40 Antistatic effect of alkanesulfonates in rigid polyvinyl chloride (tin-stabilized). Surface resistance according to DIN 53 482. Test specimen I-mm milled sheets, stored for 1 day at 23°C and 50% relative humidity. 

Polyvinyl chloride is also widely used. Rigid polyvinyl chloride is introduced to the mold in powder form. The material is chosen for durable constructions because of its chemical resistance and ease of processing. It incorporates functional additives and demolds easily. Plasticized polyvinyl chloride can be used to produce flexible parts such as balls and soft toy parts. The polyvinyl chloride is introduced to the mold as either a plastisol or powder. A plastisol is a suspension of granules in a plasticizing agent. When heated, the polymer granules absorb the plasticizer and fuse to form a cohesive, flexible material. 

We find polyvinyl chloride in so many applications because we can formulate it to be rigid, flexible, or any intermediate hardness required. Rigid polyvinyl chloride is used to manufacture siding, pipes, fences, gutters, window and door frames, credit cards, and many other extruded... 

Klatt et al. (1975) described a method of collecting urine excreted by large animals. On the basis of urine funnels used in rats, an appropriate larger metabolism cage made out of transparent, rigid polyvinyl chloride was used. The cage was improved by a built-in sieve cone which assured good separation of urine and feces. A device to measure and record the time and amount of voided urine was attached. Urine was collected in a vessel with a hose connection from the bottom to... 

Note-. 2 - sufficient thermal stability and limited reactivity with polymer allows broad use, 1 = marginal thermal stability or potential reactivity with polymer restricts use, 0 = generally unsuitable for use. FPVC, Flexible Polyvinyl Chloride RPVC, Rigid Polyvinyl Chloride PS, Polystyrene LDPE, Low Density Polyethylene HDPE, High Density Polyethylene PP, Polypropylene ABS, Acrylonitrile-butadiene-styrene copolymer PET, Polyethylene terephthalate PA, Polyamide PC, Polycarbonate... 

Figure 2. Fracture surface of rigid polyvinyl chloride reinforced with No. 1 asbestos...

Chlorocresol may be lost from solutions to rubber closures, and in contact with polyethylene may initially be rapidly removed by sorption and then by permeation, the uptake being temperature dependent. Presoaking of components may reduce losses due to sorption, but not those by permeation. Chlorocresol may also be taken up by polymethylmethacrylate and by cellulose acetate. Losses to polypropylene or rigid polyvinyl chloride are usually small. ... 

TM for thermoplastic acrylic polymers in powder form. Various grades facilitate processing or improve physical properties of rigid or semi-rigid polyvinyl chloride formulations. 

The presence of plasticizersdn molded or extruded polyvinyl chloride items is often undesirable particularly so if high corrosion resistance, strength, hardness, and chemical resistance are of importance. Rigid polyvinyl chlorides, with no plasticizer present, have therefore been developed which are employed most satisfactorily in a variety of applications. 

Two sets of experiments were performed. In the first set, three polymers with very different mechanical properties were chosen to determine their response to this experiment. Polycarbonate PC, rigid polyvinyl chloride PVC, and ultra-high molecular weight polyethylene UHMWPE, were loaded with 10, 8.5, and 7.2 N and tested at 0.04 m/s sliding speed. In these tests, the friction force was continuously... 

Place coverslips into a suitable rigid polyvinyl chloride or glass rack. 

RGP rigid gas-permeable RPVC rigid polyvinyl chloride... 

Table 1 provides average properties of rigid polyvinyl chloride (RPVC). In reviewing the general properties of this polymer, note the use of the following legend A = amorphous - Cr = crystalline - C = clear - E = excellent - G = good - P = poor - 0 = opaque - T = translucent- R = Rockwell - S = Shore. 

Average Properties of Rigid Polyvinyl Chloride (RPVC)... 

Rubber-lined steel is the least expensive material for the dissolution and mechanical separation of insoluble residue. In the liquid-liquid contacting section, rigid polyvinyl chloride (PVC) is very satisfactory. In the parts of the system operating at elevated temperatures, impervious graphite can be used for the heat exchangers. Other construction materials include thermosetting resins and lined steel. 

ABS is added to rigid polyvinyl chloride to increase melt processabihty and impact strength. It is added to polycarbonate to increase melt processability and environmental stress-crack resistance and to decrease notch sensitivity and cost. 

Polyethyl acrylate is added to rigid polyvinyl chloride to improve melt processability. It is compatibilized by grafting polymethyl methacrylate onto it. 

Rigid polyvinyl chloride can be easily bonded with epoxies, urethanes, cyanoacrylates, and thermosetting acrylics. Flexible polyvinyl chloride parts present a problem because of plasticizer migration over time. Nitrile adhesives are recommended for bonding flexible polyvinyl chloride because of compatibility with the plasticizers used. Adhesives that are found to be compatible with one particular polyvinyl chloride plasticizer may not work with another formulation. Solvent cementing and thermal welding methods are also commonly used to bond both rigid and flexible polyvinyl chloride parts. 

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