Лако-красочные материалы — производство

PMMA is the most common member of the acrylic family and widely known as the ICI trade name of ‘Perspex’. Acrylic has excellent transparency and no appreciable yellowing under sunlight. They are therefore used in the construction industry and in the electrical industry for lighting systems and lenses. Acrylics are not usually recommended for high-temperature […]

The clarity, toughness and barrier properties make PET best suited for its primary market — blow-moulded carbonated soft drinks containers. Speciality grades include flame retardant, impact modified and glass, mineral, carbon, PTFE and mica filled. Reinforced PET is probably the stiffest of all engineering thermoplastics and has outstanding weatherability and heat resistance. Outside of the […]

Polyethylene is a lightweight, semi-crystalline thermoplastic and is available in the following major physical grades: • Low-density polyethylene, • Medium-density polyethylene, • High-density polyethylene, and • Ultra-high-molecular-weight polyethylene. Polyethylene is not generally regarded as a high-performance engineering plastic but it is extremely versatile and inexpensive and so is one of the most popular of all […]

PES is a high-temperature amorphous thermoplastic and is used in applications where high stiffness and high continuous operating temperatures are a pre-requisite. PES can, however, be degraded by UV light and so has a low resistance to weathering. PES can be sterilised repeatedly (autoclaved) and so is used for some medical devices including instrument trays […]

PEEK is a high-performance thermoplastic which is well suited for high-temperature environments. It is often one of the highest-priced engineering plastics but does offer a unique combination of properties. The high-temperature performance (continuous service temperature up to 200 °C) and excellent mechanical and electrical properties make it one of the leading contenders as a replacement […]

There is a wide range of polycarbonate resins and compounds available and they are often blended with ABS for greater versatility. Polycarbonate is often selected for its strength and clarity and its ability to be moulded into almost any shape and so is used as a replacement for glass for safety goggles, lenses, electrical switch […]

The most notable properties of PBT are its chemical resistance and mechanical properties. It is also noted for its high stiffness and strength, low water absorption and high dimensional stability. Table 2.4 Adhesive shear strengths (polyamide) Adhesive type Description Shear strength (N/mm2) Cyanoacrylate Standard ethyl >25.0* Toughened 16.9 Ethyl + primer 11.0 Two-part acrylic MMA […]

Polyamide Nylon was one of the earliest plastics and has been commercially available since the late 1930s. The standard grades are PA6, PA66 and PA12 but there area also many speciality grades available including lubricated, plasticised, flame retardant and, perhaps most common of all, glass filled. Polyamide is tough, inexpensive and has good resistance to […]

Liquid crystal polymers (also called aromatic copolyesters) have outstanding mechanical properties at both ambient and extreme temperatures. They are also highly resistant to many chemicals and so are used for many automotive under-bonnet and aerospace applications. A number of filled and reinforced grades are available and this material can be processed with very short cycle […]

ABS is a generic name for a family of amorphous thermoplastics produced by combining three monomers: acrylonitrile, butadiene and styrene. Different ratios of these monomers provide variations in strength, stiffness, impact resistance and surface appearance and so there are many different versions of ABS, each with their own particular properties. Many adhesives are stronger than […]