Company News

March 21 2017 0Comment
molding machine

Types of injection molding machines & molding machine process

Molding Machines are classified primarily by the type of driving systems they use: hydraulic, mechanical, electric, or hybrid. Hydraulic Hydraulic presses have historically been the only option available to molders until Nissei Plastic Industrial Co., LTD introduced the first all-electric injection molding machine in 1983. Hydraulic machines, although not nearly as precise, are the predominant […]

March 20 2017 0Comment
Polymer

PTFE Properties

PTFE resin is in a class of paraffinic polymers that have some or all of the hydrogen replaced by fluoride. The original PTFE resin was invented by DuPont in 1938 and called Teflon®. PTFE is a crystalline polymer with a melting point of about 621° F (327° C). Density is 2.13 to 2.19 gm/cc. PTFE […]

March 19 2017 0Comment
Nylon membranes

What are the differences between Nylon and PTFE filters?

Nylon membranes for filtration using syringe filter devices and which membrane can be used with different solutions and or sovlents. PTFE as a membrane for syringe filters is considered to be more “chemically resistant” and Nylon to be the most “extractable free” for HPLC or dissolution testing. The simple explanation of the differences is that […]

March 18 2017 0Comment
PTFE

PTFE Materials & Porous PTFE Plastic Polymer

Polytetrafluoroethylene (PTFE) is a versatile polymer used in a broad range of medical, industrial, and high technology applications. Porous PTFE is inert, making it unreactive to most chemicals, and, it can work in high processing and operating temperature environments (500°F / 260°C continuous). Porex porous PTFE offers excellent thermal, electrical, mechanical, and chemical properties as […]

March 17 2017 0Comment
PTFE

The physical properties of PTFE

Polytetrafluoroethylene (PTFE) is very non-reactive and is often used in containers holding reactive and corrosive chemicals. According to DuPont, its melting point is 600 K (327 °C; 620 °F). It maintains high strength, toughness and self-lubrication at low temperatures down to 5 K (-268.15 °C; -450.67 °F), and good flexibility at temperatures above 194 K […]

March 16 2017 0Comment
PTFE

PVC & PTFE Material Comparison

Polytetrafluoroethylene (PTFE) is a synthetic material accidentally invented in the late 1930s while a chemist was endeavoring to develop a new type of perfluorethylene-based refrigerant. Rather than achieving a chlorofluorocarbon, the scientist was surprised to find that the perfluorethylene used in the process reacted with the iron content of its container and polymerized under pressure. […]

March 13 2017 0Comment
Introduction to Molding Materials

Molding Materials Introduction

Material Features Tensile Strength (psi) Flexural Modulas (psi) Impact Strength (notched izod ft-lb/in) Max Temperature (deflection or softening) ABS (Acrylonitrile Butadiene Styrene) Good impact resistance Good processability and appearance Dimensional stability 5,000-12,000 270,000-380,000 3.0-7.5 140°-200° F ABS/PC (Acrylonitrile Butadiene Styrene / Polycarbonate) Good impact resistance Good processability and appearance Dimensional stability 6,400-18,000 300,000-390,000 8-12 140°-210° […]

March 11 2017 0Comment
Tube Extrusion

Single Screw Extruder

Single screw extrusion is one of the core operations in polymer processing and is also a key component in many other processing operations. The foremost goal of a single screw extrusion process is to build pressure in a polymer melt so that it can be extruded through a die or injected into a mold. Most […]

March 10 2017 0Comment
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Fluoric polymers (PTFE/PVDF)

Fluoropolymers have excellent, almost universal chemical resistance. They can be used both at high and very low temperatures (-260 to +260°C). They also possess outstanding resistance to weathering (UV-stability). Due to the low coefficient of friction, they are often used as sliding materials or as corresponding additives in other high-performance plastics. TECAFLON PVDF (PVDF) Polyvinylidenefluoride […]

March 09 2017 0Comment
Rod Extrusion Machine

Twin screw extrusion technology

How does extrusion work? Extrusion processing aims to physico-chemically transform continuously viscous polymeric media and produce high quality structured products thanks to the accurate control of processing conditions. Twin screw extruders consist of two intermeshing, co-rotating screws mounted on splined shafts in a closed barrel. Due to a wide range of screw and barrel designs, […]