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Common mistakes in the use of flame retardants Misunderstanding 1: The larger the amount of flame retardant, the better the flame retardant effect. The limiting oxygen index (LOI) and UL-94 test results show that the flame retardant performance of the material is related to the flame retardant dosage. With the increase of flame retardant content, the flame retardant effect first increases and then decreases. Too much flame r…
Extrusion Processing Guides-2 The feed zone temperature controls the compound sticking to the barrel wall, otherwise known as the bite. Too much bite will lead to overheating of the compound and too little bite will lead to poor output. The die temperature will also influence output and will have an effect on the dimensions of the extrudate. A cold die will restrict flow where as a too-hot die will affect di…
Extrusion Processing Guides-1 Successful processing of flexible vinyl compounds with extrusion technology is dependent upon a wide range of variables. For optimum PVC extrusion processing, exact machine conditions will need to be determined by the processor. The following information will aid the processor in attaining the best possible results.
Application and advantages of brominated flame retardants Bromine is used as a flame retardant, in addition to mercury removal, air purification and other fields. With the wide application of polymer materials such as plastics in household environments, public places and vehicles, flame retardants have increasingly become a must-added fire retardant. Currently, flame retardants are mainly used in four fields: transportation, electronic…
Why use flame retardants Flame retardants are chemicals added to materials to interfere with combustion. This disturbance is usually to achieve some desired refractory properties - slow ignition, reduce flame spread, etc. Widely used in plastic, wood and textile fire protection.Phosphorus flame retardants (including organic phosphorus and inorganic phosphorus) can carbonize the combustion material to ac…
Advantages and disadvantages of commonly used flame retardants In recent years, with the increase in the output of plastic products and the improvement of safety standards, flame retardant materials are more widely used. Generally speaking, flame retardant materials can be divided into organic flame retardant materials and inorganic flame retardant materials.The organic flame retardant has good flame retardant effect and the addition amount…
How Does A Plastic Extrusion Machine Work-2 · Temperature Control To ensure that the final materials won’t degrade or become weakened, it’s essential to maintain a consistent temperature inside the extruder’s barrel. Overheating the materials should be avoided to reduce imperfections, so typically the barrel is heated gradually from rear to front. The temperature is also maintained using a series of fan and water cooli…
How Does A Plastic Extrusion Machine Work-1 As a manufacturer of piping, tubing, insulation, or any other plastic composite product, you likely already know what an extrusion machine is, but may be wondering if it's right for your high-volume manufacturing process. Plastic Extruding Machine
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