Fiberglass chopped strands are produced from continuous E-glass fibers, which are chopped to the length of usually 4 mm. They are used to reinforce amorphous or thermoplastic resins. Fiberglass chopped strands are compounded on extruders while the resulting compounds are afterwards injection molded. The mechanical properties can be measured as follows:
Tensile strength, tensile modulus, elongation, flexural strength and flexural modulus on Zwick Roell 2020 according to ISO 527-2 and ISO 178.
Charpy unnotched and notched on Resil Impactor according to ISO 179/1eU and 179/1eA.
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