Special Blowing Agent for TPR/PVC/PS

This series of foaming agents is used mainly in extruding foaming of PVC, TPR and PS for making pipes, plates, and section materials, and used in injection molding of them for making toys and other articles. Characteristics: Self-formed nuclei. Stable performance of products. Controllable foaming Uniform and fine cells Application : This series of foaming agents features a good compatibility with PVC, and TPR, so they may be Dispersed evenly in the molten resins during processing to form a system with uniform phases ,which in turn helps to maintain a uniform performance in the product. Endotherm-exothem balanced foaming agents may balance the heat generated by AC decomposition to eliminate such problem as unstable bubble holes and shrunken holes caused by the lowered temperature of molten resin ,so that bubble holes in the product may become uniform and dense. The decomposing temperature of endotherm-exothem balanced foaming agents falls in the range of temperature for PVC processing, no induction term is needed for decomposition, the gas release is even and without eruption, and nuclei may be formed by themselves ,All these characteristics make the foaming process become more controllable, which guarantees the stability of performance of the foamed product of greater thickness and complex shape during the dynamic foaming process. Technical index: Brand AT1AT2AT3Chemical components Azobisformamide Appearance Light yellow powder liable to dispersion Decomposition temperature() 160 180 165 180 170 185 Amount of gas produced (ml/g) STP 180±10 190±10 200±10 Average granular size ((μm) 8 10 8 10 8 10 Moisture content (%) ≤0.3 Package and storage: This series of foaming agents is free of odor and toxicity. It allows easy storage and transportation and it is self-quenching. It wont decompose under the common temperature however, it should be kept in the shady, cool and dry place and be kept far from hot steam pipeline, fir source, and direct sunlight. Never let it contact direct acids and alkalis. It is suggested that good ventilation conditions should be realized where the foaming agent is treated or mixed. Be careful not to inhale its powder, not to make frequent skin contact with it and not to swallow it. A bag contains 25kg of this kind of foaming agent; bags are packed in cartons or barrels, depending on clients demand. The total weight of this foaming agent series in a batch amounts to 2 tons. While using the foaming agent of the same batch ,users may test only a handful of it for confirmation; if the testesult is OK, then they may use the whole batch with certainty.