Vegetable oils modified

Chem. Descrip. Blend of vegetable oils, modified solids, nonionic emulsifiers, and silicone... 

Polymers obtained from natural products or from their immediate derivatives such as vegetable oil, modified epoxidised oils, transesterified oils, heated oil, monoglyceride and diethanol amide or fatty acids of vegetable oils, cashew nut seed liquid (CNSL) and derivatised polymers, are bioderived polymers. " The details of vegetable oil-based polymers are the subject matter of this book and hence are discussed in detail in subsequent chapters. 

As vegetable oil-modified polyesters have been studied over a long period of time, most known vegetable oils are now being utihsed to produce these polymers. Vegetable oil-based polyesters are used in almost aU the fields where a petroleum-based one can be used. These include protective coatings and paints, printing inks, varnishes and lacquers. 

Vegetable oil-modified nylons are thermoplastic linear polymers with polar -CONH- groups separated by aliphatic hydrocarbon chains. Because of... 

The most common application of vegetable oil-modified polyamides is in the surface coatings and paints industry. The dimer acids of tall and soybean oils and amines are used to modify the flow behaviour of paints. This thixotropic flow prevents setting and sagging, enables easy application and improves surface appearance. Vegetable oil-based nylons are used as engineering polymers in the automotive and transport industry for fuel lines. Products are also used for the extruded and moulded components of fuel systems such as filler necks, gas tanks, reservoir modules, filters, fuel rails and vapour recovery systems. Nylon 11 is also used in power coatings to coat metals that must withstand abrasion, impact and corrosion. 

What are the different uses of vegetable oil-based polyamides Vegetable oil-modified addition polymers have many potential applications . Explain. 

Why is vegetable oil-modified poly(amido amine) widely used as a hardener for epoxy resins ... 

U. Konwar and N. Karak, Hyperbranched poiyether core containing vegetable oil modified polyester and its clay nanocomposites . Polymer I, 2011, 43, 565-76. 

Vegetable oil-modified biocomposites are broadly defined as composites of vegetable oil-based resins and synthetic fibres or of bio-based resins and natural fibres. The conventional vegetable oil-based composites mainly consist of a vegetable oil-based polymers matrix. This has been discussed in earlier chapters and the dispersed phase or reinforcing agents, which may be synthetic or natural fibres, are discussed here. 

Polyurethanes. The main raw materials for urethanes are organic diisocyanates and various active hydrogen components, such as polyether polyols, hydroxyl-terminated polyesters, hydroxyl-terminated urethane polyethers, vegetable oils modified by alcohol or some diamines. 

---