Medium-temperature Blowing Agents

This series of foaming agents is used widely in the foaming of such plastics as EVA,PE and PVC and multiple rubbers. In particular, it is suitable to the hot-pressing molding of EVA shoe material in large or small molds.Blowing Agent Features: Foaming at mid-temperature. High whiteness of products. Stable performance of products. Uniform and fine cells No formaldehyde. Safe and environment-friendly. Application specification: This series of foaming agents may decompose at 160or so in EVA/rubber mixture to give rise to useful nitrogen, carbon dioxide and a small amount of ammonia. The decomposing temperature of mid-temperature foaming agent is not high, a little activator is needed to add for activating its decomposition, and it may decompose completely within a short time without producing the unnecessary color resulting from the residual foaming agent. oa small quantity of zinc oxide or stearic acid may be added to it to activate it may decompose at a lower temperature. The decomposition of this series of foaming agents is mild relatively, and the process of its decomposition matches the half-time of decomposition of bridging agent (DCP), so that the foaming speed may match the bridging speed. All of those lead to the following result: cells in the foamed products will be fine, the time necessary for foaming and bridging will be enhanced greatly. Like low-temperature foaming agents, this series of foaming agents may endow products with an adequate whiteness without adding too much such white paint as titanium dioxide, which helps to avoid such a consequence: other physical performances of the product is affected by adding too much white paint. This series of foaming agents is free of the odor characteristic of formaldehyde generated by common low-temperature foaming agents. As an ideal modified AC blowing agent, the mid-temperature foaming agent integrates the merits of both high-and low-temperature foaming together. Technical index: Brand JTR-L JTR-M JTR-H Chemical component Azobisformamide Appearance Light yellow powder liable to dispersion Decomposition temperature() 140±3 150±3 160±3 Gas volume(ml/g) STP 165±5 170±5 175±5 Average diameter(um) 6 8 6 8 6 8 Moisture (%) ≤0.3 pH 7.5 8.0 Package and storage: The mid-temperature foaming agent possesses the storage stability when stored under the common temperature. It should be kept in the cool and dry place 4 tons. While using the foaming agent of the same batch, users may test only a handful of it for confirmation, and if the result is OK, they may use the whole with certainty.