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(01) IMMERSION TEST (ASTM D 543, ISO 175) The method of measuring the resistance of plastics to chemical reagents by simple  immersion of processed plastic specimens is a standard procedure used throughout  the plastics industry. The method can only be used to compare the relative resis￾tance of various plastics to typical chemical reagents. The test results do not provide  a direct indication of suitability of a particular plastic for end-use application in  certain chemical environments. The limitation infl uencing the results, such as dura￾tion of immersion, temperature of the test, and concentration of reagents should  be considered when studying the test data. For applications involving continuous  immersion, the data obtained in short-time tests are useful only in screening out  the most unsuitable materials. The test equipment consists of a precision chemical balance, micrometers,  immersion containers, an oven or a constant-temperature bat...

 Compounding line &It's Automation Contact :-  Sunny Raj 8873873036 sunnystudy2020@gmail.com Thanks for visiting Plz like & Share

Plastic Material Melt And Mould Temperatures MATERIAL MELT TEMPERATURE RANGE (℃) MOULD TEMPERATURE RANGE (℃) ABS 190-270 40-80 ABS/PC ALLOY 245-265 40-80 ACETAL 180-210 50-120 ACRYLIC 220-250 50-80 CAB 170-240 40-50 HDPE 210-270 20-60 LDPE 180-240 20-60 NYLON 6 230-290 40-90 NYLON 6 (30% GF) 250-290 50-90 NYLON 6/6 270-300 40-90 NYLON 6/6 (33% GF) 280-300 40-90 NYLON 11 220-250 40-110 NYLON 12 190-200 40-110 PEEK 350-390 120-160 POLYCARBONATE 280-320 85-120 POLYESTER PBT 240-275 60-90 PET (SEMI CRYSTALLINE) 260-280 20-30 PET (AMORPHOUS) 260-280 20-30 POLYPROPYLENE (COPOLYMER) 200-280 30-80 POLYPROPYLENE (HOMOPOLYMER) 200-280 30-80 POLYPROPYLENE (30% TALC FILLED) 240-290 30-50 POLYPROPYLENE (30% GF) 250-290 40-80 POLYSTYRENE 170-280 30-60 POLYSTYRENE (30% GF) 250-290 40-80 PVC P 170-190 20-40 PVC U 160-210 20-60 SAN 200-260 50-85 SAN (30% GF) 250-270 50-70 TPE 260-320 40-70

Basics of Pneumatic Conveying System & Applications in Plastic Processing...............S.S Contact :-  Sunny Raj (8873873036) sunnystudy2020@gmail.com

Polystyrene Polystyrene is a versatile plastic used to make a wide variety of consumer products. As a hard, solid plastic, it is often used in products that require clarity, such as food packaging and laboratory ware. When combined with various colorants, additives or other plastics, polystyrene is used to make appliances, electronics, automobile parts, toys, gardening pots and equipment and more. Polystyrene also is made into a foam material, called expanded polystyrene (EPS) or extruded polystyrene (XPS), which is valued for its insulating and cushioning properties. Foam polystyrene can be more than 95 percent air and is widely used to make home and appliance insulation, lightweight protective packaging, surfboards, foodservice and food packaging, automobile parts, roadway and roadbank stabilization systems and more. Polystyrene is made by stringing together, or polymerizing, styrene, a building-block chemical used in the manufacture of many products. Styrene also occurs naturally in...

Polyethylene : Types, Uses, Properties, Application & Structure info Polyethylene  or  polythene  (abbreviated  PE ;  IUPAC  name  polyethene  or  poly(methylene) ) is the most common  plastic  in use today. It is a  linear ,  man-made ,  addition ,  homo -polymer, primarily used for  packaging  ( plastic bags ,  plastic films ,  geomembranes , containers including  bottles , etc.). As of 2017, over 100 million  tonnes  of polyethylene resins are being produced annually, accounting for 34% of the total plastics market. [5] [6] Many kinds of polyethylene are known, with most having the  chemical formula  (C 2 H 4 ) n . PE is usually a mixture of similar  polymers  of  ethylene , with various values of  n . It can be  low density  or  high density : low density polyethylene is extrudedusing high pressure (1000-5000 atm) and high tem...