SUBJECTS resin 593 elasticity

For quality cured thermoset resins, approximately one percent of the mass is soluble when subjected to long-term leaching with tetrahydrofuran. Equilibrium is approached in two weeks resin swell is not visually noticeable. The monomeric, chemical structures are such that the hydrocarbon resins exhibit more pronounced viscoelastic properties whereas, the epoxy resins are similar to elastic bodies when subjected to tensile testing at room temperature. Therein, LRF 216 is less sensitive to flaws and is more nonlinear in tensile or compressive stress-strain analysis. 

Tear speed = Cross head speed Speed of which samples are subjected to destruction in the testing equipment. Normally it is between 5 and 300 mm/min Thermosetting resins Closely cross-linked macromolecules that do not undergo plastic deformation even at high temperatures Thick-layer adhesive bonding Elastic bonding application where the thickness of the adhesive layer exceeds 3 mm... 

The silicones which are of commercial interest may be classified into three groups, namely fluids, elastomers and resins. The manufacture of these materials is based on the general reactions described in the preceding section. In the case of elastomers, the linear polymer which is produced initially is subjected to cross-linking reactions in order to develop elastic properties. Similarly, the... 

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