Лако-красочные материалы — производство

Fluorosilicones are renowned for their fuel resistance and utility in extreme-temperature service environments. The siloxane backbone results in a polymer with excellent UV, ozone and thermal resistance. The maximum recommended service temperature is in excess of 200 °C (392 °F) for most grades with brittle points as low as -65 °C. Fluorosilicones are used for […]

EPDM is known for its superior resistance to ozone and oxidation as well as its low cost. Typical engineering applications include seals, hoses, belts, cable covers and weather-strips. EPDM can be difficult to bond (Table 4.4) and many cyanoacrylates will not show particularly good adhesion to EPDM. However, some speciality grades of cyanoacrylate will show […]

EEA rubbers have better heat resistance and low-temperature flexibility than polyacrylate rubbers and they also offer excellent resistance to water. This, coupled with its resistance to UV and ozone, gives it excellent weathering resistance. EEA rubbers offer poor resistance to non-mineral oil brake fluid, esters and ketones. They do, however, offer excellent resistance to diesel […]

Butyl rubber is one of the most widely used thermoset elastomers and is typically used for inner tubes and other industrial gas bladders. Butyl rubber is also available in a halogenated form with either bromine or chlorine and this often increases its thermal performance while retaining the low gas permeability to gas and moisture. Butyl […]

In this section, a guide is given to indicate the performance of several different adhesives for a selection of elastomers and thermoplastic elastomers. Most of the performance data was taken from ‘The Loctite Design Guide for Bonding Rubber’ issued by Henkel Ltd [2] and for more detailed information the reader should refer to this guide. […]

1.1 Introduction Due to the virtually limitless combination of elastomer types, fillers and additives that can be compounded, a huge variety of elastomeric materials are available for almost any application requiring elastomeric properties. For this reason, it is very unlikely that there will be bond strength data for every adhesive/elastomer combination. This chapter is designed […]

Structural adhesives for thermoset plastics are more often than not epoxies, two-part acrylics and sometimes cyanoacrylates [4]. UV-cure adhesives are not widely used as many thermoset plastics are not clear. Epoxies will bond to most thermoset plastics but as mentioned in Section 1.4 there are many different epoxy adhesive grades available and some epoxies are […]

Available as both thermoplastic and thermoset resins, polyimides (PI) are a family of some of the most heat — and fire-resistant polymers known. Polyimide is said to possess a greater resistance to heat than any other unfilled organic material. Unlike most plastics, PI are available in laminates and shapes, moulded parts and stock shapes. Polyimide […]

Polyurethanes can have the physical structure of a solid casting, a flexible elastomer or soft or rigid foams. It can be either a thermoplastic or more usually it is a thermoset material. The isocyanates in polyurethanes often result in health and safety implications during cure or processing and so must be carefully controlled. Polyurethane plastics […]

Epoxy resins are usually supplied as one-part frozen pre-mixes or two-part systems. There are numerous formulations; each has its own particular characteristic and can vary in viscosity from a thin liquid to a gel consistency. Epoxies are used as adhesives, coatings and binding resins and have excellent abrasion resistance and chemical resistance. Due to the […]