• info@ssint.ch
  • +852 2461-2221

Poly Vinyl Chloride (PVC)

PVC

PVC resin, a synthetic resin belonging to the group of polymeric natural mixes, fabricated by mass, arrangement, suspension, and emulsion polymerization of vinyl chloride monomer, with free-radical initiators (peroxide impetus), as a rule in watery suspension or emulsion. Subsequent to blending with plasticizers, stabilizers, and colours, the PVC resin might be manufactured by techniques, for example, calendaring, trim, or expulsion into flexible articles, for example, waterproof shells, shower curtains and packaging films. The resin is not plasticized for use in making rigid products such as water pipe, plumbing fittings and phonograph records. For use in making channelling or basic boards that require high imperviousness to affect, polyvinyl chloride regularly is mixed with little extents of rubbery synthetic polymers. PVC Resins more easily plasticized than polyvinyl chloride can be set up by including different extents of vinyl acetic acid derivation to vinyl chloride before polymerizing the blend; stiffer resins result from treatment of polyvinyl chloride with chlorine. PVC Resins ApplicationsWe can offer wide range of PVC resins which find their use in agriculture (rigid pipes and fittings, flexible tubes, hoses); building and construction (doors, windows, partitions / floor / wall coverings); packaging (bottles and containers, blister packaging); electrical and electronics (wires, cables, electrical conduits); health care (blood bags, tubing, heart catheters, IV fluid bags); and consumer goods (toys, sports goods and footwear).

PVC

SG5 K67 Pipe Grade PVC pipe is delivered from a forte mix of polyvinyl chloride material with remarkable physical properties alluring for funnelling applications (i.e., enhanced effect resistance and good fire resistance capacities). Pipe grade PVC product offering incorporates plans 40 and 80 channelling from 1/4″ through 24″ widths. PVC channelling frameworks can deal with more than three-fourths of the temperature/weight prerequisites of today’s common procedure plants. PVC weight pipe has an upper working temperature breaking point of 200° F (93° C), or roughly 60° F (15° C) over that of Type I Grade I PVC. Similarly as with all thermoplastic funnelling frameworks, PVC’s capacity to withstand weight shifts with pipe distance across, divider thickness, and temperature. As the pipe distance across and temperature expands, the weight rating of the item diminishes. For instance, 1/2″ Schedule 80 PVC pipe is built for nonstop service of 850 psi @ 73°F (23°C). A similar pipe in service @ 180°F (82°C) conveys a most extreme working weight rating of 210 psi at this temperature. 6″ Schedule 80 PVC pipe is designed for 270 psi @ 73°F, and 54 psi @ 200°F. Since the chemical properties of resins may vary and the types and quantity of added substances contact an URMPL representative before designing material handling systems using PVC.

Specification of SG-5 Pipe Grade Poly Vinyl Chloride

Items Unit Index
SG1 SG2 SG3 SG4 SG5 SG6 SG7 SG8
Viscosity No. ml/g 156-144 143-136 135-127 126-119 118-107 106-96 95-87 86-73
Or K value 76-75 73-74 72-71 70-69 68-66 65-63 62-60 59-55
Or Average degree of polymerization 1785-1536 1535-1371 1350-1250 1250-1150 1100-1000 950-850 750-650 740-650
Foreign Particle 30max 30max 30max 30max 30max 30max 40max 40max
Volatile Matter % 0.4max 0.4max 0.4max 0.4max 0.4max 0.4max 0.4max 0.4max
Apparent Density g/ml 0.42min 0.42min 0.45min 0.45min 0.45min 0.45min 0.45min 0.45min
Particle size
0.25mm Sieve 0.063mm Sieve
%
2.0max 90min
2.0max 90min
2.0max 90min
2.0max 90min
2.0max 90min
2.0max 90min
2.0max 90min
2.0max 90min
No. of fish eye/400cm2 40 max 40 max 40 max 40 max 40 max 50 max 50 max 50 max
Plasticizer absorption of 100g resin g 25min 25min 25min 22 min 17min 15min 14min 14min
VCM Residue ppm 10 max 10 max 10 max 10 max 10 max 10 max 10 max 10 max
Whiteness(160°C,10min) % 75min 75min 75min 75min 75min 75min 70min 70min

PVC

Package, Transportation & Storage of SG5 Pipe Grade

Package: Packed with woven bag or kraft paper bags with a net weight of 25kgs.
Transportation: Transported with ship, motor vehicle & train. Storage: Stored in normal temperature and dry warehouse.

Specification of PVC Resins

Property Test Method Grade
SUS K-66 SUS K-78
POLYMERIZATION DEGREE JIS K6721-77 1000 ± 50 1650 ± 60
K-VALUE DIN 53726 66 ± 1 78 ± 1
BULK DENSITY (g/c.cm) ASTM D1895-90 0.54 ± 0.04 0.50 ± 0.04
SPECIFIC GRAVITY at 23 C ASTM D790 ca 1.4 ca 1.4
PARTICLE SIZE -45 mesh 0.2% max 0.2% max
VOLATILES at 110 C for 1 H ASTM D3030-90 0.3% max 0.3% max

Processing Characteristics of PVC Resins

Property Unit Test Method Grade
SUS K-66 SUS K-78
IMPACT STRENGH kg cm/cm2 ASTM D256-93 >4.0 >3.9
TENSILE STRENGTH kg /cm2 ASTM D638-91 >540 >560
ELONGATION % ASTM D638-91 250 260
HEAT STABILITY min ASTM D2115-92 58 68
ELECTRICAL VOLUME RESISTANCE ohmcm JIS K6723-83 1.13X1013 1.94X1013
DOP ABSORBABILTY phr ASTM D3367-90 21 32
FUSION TIME phr ASTM D2538-88 180 -
MIN. TORQUE mg ASTM D2538-88 2550 -
PLASTICIZER ABSORPTION RATE min ASTM D2396-88 5′ 30″ 3′ 30″