62results about How to "Act as a "plasticizer"" patented technology

The invention discloses a butyl rubber composition and a method for producing a butyl rubber adhesive tape by using the same. Based on the total weight of the composition, the butyl rubber composition comprises the following components: 15 to 40 percent of butyl rubber matrix, 5 to 12 percent of styrenic thermoplastic elastomer, 8 to 20 percent of plasticizer, 20 to 40 percent of tackifying resin, 0.2 to 2 percent of vulcanizing agent and 10 to 30 percent of inorganic filler. The method for producing the adhesive tape comprises the steps of extrusion molding and vulcanizing. The adhesive tapeprepared by the butyl rubber composition has high peel strength and adhesiveness stability, and the process for producing the adhesive tape is simple and easy to control and is suitable for popularization and application.

The invention discloses a preparation method of cellulose fiber, comprising the following steps: 1) mixing cellulose pulp with an NMMO aqueous solution with a mass concentration of 60% to 85%, preferably 70% to 76%, to obtain a uniform mixture; 2) ) The obtained homogeneous mixture is dehydrated, swelled, dissolved and defoamed to obtain a cellulose spinning stock solution; 3) The obtained cellulose spinning stock solution enters the spinning machine after filtration and heat exchange, is extruded through the spinneret assembly, and after air cooling, enters The coagulation system is coagulated in an NMMO coagulation bath of 50%<mass concentration<72% to obtain nascent fibers; 4) the obtained nascent fibers are washed with water to obtain fiber tows, and then processed in subsequent stages to obtain the cellulose fibers. The invention can greatly reduce equipment investment, simplify process, reduce energy consumption and industrialization cost, facilitate safe production, improve fiber homogeneity and mechanical properties, and thus be more suitable for high-efficiency and low-consumption industrialized production.