Determination of carbon black content in polyethylene pipes and fittings (thermal weight loss method)
1. Heat the combustion boat until it is hot, then cool in a desiccator for at least 30 minutes and weigh to the nearest 0.0001g. (1.0 ± 0.1)g of polyethylene samples were placed in a combustion boat...
Nano-calcium carbonate modified PVC resin passed provincial appraisal
Nanotechnology is a cross-cutting and frontier discipline that has gradually developed in the late 1980s. At present, the State Economic and Trade Commission has included nanomaterials in the list of...