ugg boots Günstig Progress _435 powder surface mo

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Progress in Powder Surface Modification

(1) common plastics modified micro-structure shown in Figure 3 (2) ternary blends the dispersion of the inorganic filler filler, rubber, plastics constitute the ternary blends,[link widoczny dla zalogowanych], filling to spread, we can see there are four cases . ① filler, rubber and the dispersion in the matrix phase ② rubber phase dispersed in the matrix phase, packing both into the rubber phase and entered the matrix phase; ③ filler concentration in the rubber phase on the surface; ④ coated with rubber packing, and then dispersed in the matrix phase being. Among them, the first class of distributed ① ② ③ are ordinary, the results are not satisfactory. The first category is what we want to see ④ organic coated ternary blends. It has a significant toughening enhancement. (3) organic coating process diagram of ternary blends of organic coated filler filler ternary blend out how the process? Figure 1 is a schematic diagram of its processing. 4.3 The creation of ternary blends of organic coating,[link widoczny dla zalogowanych], production of new toughened Methods fillers ternary blends organic coating, the industrialized production of new packing method must address the following three aspects. (1) Select the rubber in the choice of a soft shell made of rubber material, the principle that the compatibility principle. The selection and compatibility of the matrix resin to a good variety of rubber materials for the shell. We pointed out: on the PP, PE PVC select choice of EPDM rubber nitrile rubber (2) soft-shell / hard-core micro-structured approach to achieve shell / core structure is the core of the technology, many large foreign companies are do. Common method in Table 2 (3) the key technical issues masterbatch method Plastics Processing Volume 37 2001 6 PP matrix particle filled composites Filled filled organic coating Figure 1 Schematic diagram of ternary blends ① processing a small amount of filler a large number of ultrafine inorganic particles coated with rubber; (1) strengthening and toughening of polypropylene, polyethylene: the car bumper, instrument ② the formation of rigid particles in place of a hard core / soft rubber shell for a specific end plate; structure particles; ③ through twin-screw extruder to achieve continuous production of filler; Table 2 Microstructure of the method to achieve common method of comparing methods toughening Filled solution coating method: a large number of post-processing emulsion solvent needs: difficult to separate the emulsion breaking , rubber-like elastic body can not make shell material. Toughening of polymer materials, the preparation of such particles can not be multi-step melting method: preparation of many links,[link widoczny dla zalogowanych], the processing cycle is long reactive processing method: particle shape is hard to control composite unstable, highly technical operation, the heavy workload and difficult to grasp without post-processing can be prepared for a soft-shell structure of hard-core processing with fewer links. Short cycle,[link widoczny dla zalogowanych], low processing cost structure, performance and processing stability, and general processing machinery can process and operable to re-④ filler in the polymer matrix dispersed quickly to resolve the conditions of these key technologies are: the surface free energy, polarity and chemical matching; system viscosity of each component; processing equipment and processing process control. 4.4 Ternary Blend of organic coating effect and promote the new ternary blends new packing organic coating has a significant toughening effect. When the new masterbatch of 40% (30% filler content), the various mechanical index were all improved. Where the maximum impact strength. 3-4 times. Detailed in Table 3. Ternary blends of organic coating materials have been the small number of new work and achieved good results, are presented several: (2) toughening inorganic flame retardant masterbatch: for Mg (OH) 2, Al (OH) 3 toughening; (3) PPO (polyphenylene sulfide) and the toughening of nylon alloys: (4) Toughened PVC packing. Table 3 Mechanical Properties of the table

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