A new type of flame retardant for felt was synthesized using red phosphorus,expanded graphite,chelating agent and accelerating agent.
新型毛毡阻燃剂以红磷为基础 ,配以膨胀石墨、螯合剂、促进剂合成。
As to the difficult adjustment of the gauges between the collector and the top pressure roller in conformity,modification of the collector of the card FA221A with soft felt solves the problem,and finds the difference with the equipment and the cotton web before and after the modification.
Based on the structure properties of fleece, two models about the calculating onthe height of capillary rise have been proposed, The model distributing fiber in threeorthogonal directions is more fittable to the test result and the need of engineering.
根据羊毛毡类多孔材料的结构特点,建立了2种计算毛细管水分吸附高度的数理模型。
Chromosome Number and Karyotype of Ardisia mamillata(Myrsinaceae);