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The material dripping from an almond tree looks confusingly like resin, but actually is a gum or mucilage, and chemically very different. Human use of plant resins has a very long history that was documented in ancient Greece by Theophrastus , in ancient Rome by Pliny the Elder , and especially in the resins known as frankincense and myrrh ...
Some are thermosetting plastics in which the term "resin" is loosely applied to the reactant(s), the product, or both. "Resin" may be applied to one of two monomers in a copolymer, the other being called a "hardener", as in epoxy resins. For thermosetting plastics that require only one monomer, the monomer compound is the "resin".
Resin wicker resembles the appearance of woven rattan by design. Polyethylene is the most common resin material used in resin wicker. Synthetic polyethylene fiber resin wicker is generally durable and resistant to stressors such as water damage, sun damage (from UV radiation), and natural decomposition.
Alternately, resin casting may be accomplished with a resin plus a nearly equal amount of a "hardener" liquid (as in many epoxy resin or polyester resin systems), which functionally contains a second polymer, for use in forming a final product plastic which is a copolymer. Copolymers contain two different alternating chemical entities in the ...
Composite materials can be less expensive, lighter, stronger or more durable than common materials. Some are inspired by biological structures found in plants and animals. [3] Robotic materials are composites that include sensing, actuation, computation, and communication components. [4] [5]
A TPU resin consists of linear polymeric chains in block-structures. Such chains contain low polarity segments which are rather long (called soft segments), alternating with shorter, high polarity segments (called hard segments). Both types of segments are linked by covalent links so that they actually form block-copolymers.
This type of resin is known as a Nadic resin and is referred to as a poor man's Ortho, due to sharing many similar properties of an Ortho resin along with the extremely low cost of DCPD raw material. In another process, maleic anhydride is first opened with water or another alcohol to form maleic acid and is then reacted with DCPD where an ...
Polycarbonates do not have a unique resin identification code. Items made from polycarbonate can contain the ... is a tough, lightweight material that is durable ...