A suitable process for making a disposable plastic fork is: Extrusion Transfer M

Question

A suitable process for making a disposable plastic fork is: Extrusion Transfer Molding Injection Molding Thermoforming Compression Molding Blow Molding Calendaring In polymer based composites (such as fiberglass), the matrix ix typically made of a thermoset because: thermoset have a high K_lc thermoset have a dark color Thermosets are very strong thermoset are very ductile thermosets can shaped under low stresses Plastics can be processed so easily into many shapes because plastic melts have a LOW viscosity. True False Thermoset parts are typically produced by: stretching above T_g forming a parison and then melting mixing powders to form the monomer and then stretching above T_g hat working the polymer and then strain hardening the crosslinked molecules melting and forming a parison first and then stretching above T_g initially forming the prepolymer paste, shaping it and then completing the polymerization

Explanation / Answer

7) Extrusion ( as plastic forks have to given the shape when at high temperature)

8) Thermosets are very strong ( the matrix is made up of multiple layer of thermosetting sheets which aligns the individual polymers in one particular direction giving it higher strength that normal glass)

9) False ( plastic consists of long polymer molecules which have high viscosity)

10) melting an forming a parison first and thn stretching above Tg ( thermosetting polymers are present in granules which are melted first to form a parison then this parison is heated above Tg so the it is easy to give it any shape that is so desired)

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