The term "resin" in the context of plastics refers to a broad category of synthetic or semi-synthetic materials that have the ability to cure into a permanent form. Resins are not a specific type of plastic but rather a component of many plastic types. They are typically viscous substances that can be converted into polymers through a curing process. These materials play a critical role in the production of various plastic products due to their versatility and durability. There are several types of plastic resins, including polyester, epoxy, polyethylene (PE), polypropylene (PP), and polycarbonate (PC). Each type has unique properties and applications. For instance, epoxy resins are widely used for coatings and adhesives due to their strong adhesion and chemical resistance, while polyethylene is commonly used in packaging materials for its flexibility and durability.

Yes, you can paint on canvas with emulsion paint, though it's more commonly used for walls. Emulsion is water-based, making it less toxic and easier to clean up than oil-based paints. When applying emulsion to canvas, prime the surface first to prevent the paint from soaking in too much. The finish is different from traditional acrylic or oil paints, offering a matte texture that can be quite appealing for certain art styles. However, it's important to note that emulsion might not be as durable or long-lasting on canvas as artist-grade paints specifically designed for that purpose. Experimenting with small projects is recommended before committing to a larger canvas.

Nylon is classified as a condensation polymer because its formation involves a condensation reaction, where monomers combine resulting in the loss of small molecules, typically water. This process is emblematic of condensation polymerization, distinguishing it from addition polymerization where monomers join without by-product elimination. Specifically, in the production of nylon-6,6, for instance, adipic acid and hexamethylenediamine react, creating amide bonds (the characteristic functional group of nylons) and releasing water molecules. Hence, the term "condensation" aptly describes the synthesis method of nylon, reflecting the removal of water as two different types of monomers link to form long polymer chains. This mode of polymerization not only delineates the structural formation of nylons but also underpins their diverse applications, from textiles to engineering materials, by allowing for the manipulation of polymer properties through the control of molecular weight and structure.