Page 45 - Eve McCabe
P. 45

POLYVINYL CHLORIDE (PVC)



         MATERIAL SURFACE FINISH; POLYMER




              FINISH DESCRIPTION                                                                                                               REPLICATION PROCESS

                                                                                                                                               1.                                                                2.
              This Clear Blue PVC has a high shine to it, as it is so smooth. A lot of the shine also comes from
              the translucent aspect. Even though it is one colour it appears to have many shades of blue
                                                                                                                                                                            Prime and spray
              and a lot of highlights.                                                                                                                                      template blue.


              RATIONALE BEHIND CHOICE                                                                                                                                       Ensuring template
                                                                                                                                                                       +    is as smooth

              The high shine of the material drew my intrest. Recreating a polymer takes a lot of attention                                                                 as possible.
              as it is so smooth and free from imperfections. This clear blue PVC I chose has an extra feature
              as it is almost translucent and I really wanted to add this to the refrence catalogue if I every
              have a see-through aspect to a design.


              ATTRIBUTES/ TECHNICAL SPECS                                                                                                      3.


              •   Excellent tensile strength                                                                                                                               Painting
              •   PVC is very dense compared to most plastics making it incredibly strong                                                                                  white lines
              •   Extremely durable nature and lightweight                                                                                                                 where light
 +                                                                                                                                                       •   Readily available and cheap (one of the most commonly used thermoplastic  naturally hits
                                                                                                                                                                           the template.
                   polymers worldwide)
              APPLICATIONS + SAMPLE IMAGES


              •   Electrical cables insulation
              •   Imitation leather
              •   Inflatable Products
              •   Flooring for hospitals or school
                   (Needed for a sterile environment)
                                                                                                                                               Final swatch
                                                                                                                                               has two layers

              MANUFACTURE PROCESS                                                                                                              off a high gloss
                                                                                                                                               finishing spray

              PVC is produced by polymerization (linking together single molecules into multiple-unit molecules)                               to seel the
              of the vinyl chloride monomer (VCM).                                                                                             white lines in.
              VCM, polymerisation initiators and water are put into a reactor. The contents of the reaction
              vessel are pressurized and continually mixed to maintain the suspension and ensure a uniform
              particle size of the PVC resin. The reaction is exothermic and thus requires cooling. As the volume
              is reduced during the reaction (PVC is denser than VCM), water is continually added to the
              mixture to maintain the suspension.
   40   41   42   43   44   45   46   47   48   49   50