3 results about "Polymethyl methacrylate" patented technology

The invention discloses a polymethyl methacrylate-zinc hydroxide nanocomposite and a preparation method thereof. The nanocomposite is powder of which the grain size is 5-40mum. The nanocomposite is formed by connecting zinc hydroxide nanosheets and polymethyl methacrylate in mass percent of (1-40):(60-99) by Zn-O chemical bonds. The zinc hydroxide nanosheets are 5-50mum long, 5-50mum wide and 50-500nm thick, and the polymethyl methacrylate is 50-500nm in grain size. The preparation method comprises the following steps of mixing soluble ammonium salt, soluble zinc salt and water firstly and evenly stirring to obtain mixed solution, adding the polymethyl methacrylate to the mixed solution and stirring to obtain complex solution, subsequently, adding an emulsifying agent to the complex solution and severely stirring to obtain emulsion, then, adding an initiating agent to the emulsion to obtain composite emulsion, and then, putting the composite emulsion in vacuum for drying to obtain a target product. The polymethyl methacrylate-zinc hydroxide nanocomposite is excellent in heat stability, and can be widely used in the field of aviation, automobiles, electronic instruments, consumer goods and the like.

The invention relates to the technical field of extrusion and processing of plastic products, in particular to a color bending-resistant co-extruded section bar reflecting infrared rays, which comprises, by weight part, 100 parts of acrylic acid-styrene-acrylonitrile copolymer or polymethylmethacrylate, 0-110 parts of polyvinyl chloride (PVC) and 5-16 parts of stabilizing agent. A color bending-resistant co-extruded granular material reflecting the infrared rays is obtained by adding a dry mixed potassium titanate crystal whisker material treated by a silane coupling agent, the color bending-resistant co-extruded granular material reflecting the infrared rays and a PVC dry material with a processing agent are prepared into the color bending-resistant co-extruded section bar reflecting the infrared rays through a special co-extruding mold, and color co-extruded doors and windows made of the color bending-resistant co-extruded section bars reflecting the infrared rays have the functions of reflecting the infrared rays, insulating heat and strengthening resistance to deformation. Under the action of the infrared rays, the thermal deformation degree of the color co-extruded doors and windows is reduced, the service life of the color co-extruded doors and windows is prolonged, and the reduction of the sealing performance of the color co-extruded doors and windows is avoided.

The invention discloses a PMMA/PC-based high-performance polaroid, which consists of a base film, and a protective layer, a haze adjusting layer, a light-transmitting electrode layer and a functional layer which are sequentially stacked on one side of the base film, the base film is prepared from the following raw materials in parts by weight: 100-120 parts of PMMA (Polymethyl Methacrylate) resin, 80-100 parts of PC (Polycarbonate) resin, 5-10 parts of glass fiber, 10-20 parts of PVC (Polyvinyl Chloride) resin, 0.5-0.8 part of a toughening agent, 0.1-0.3 part of a dispersing agent and 0.1-0.3 part of a flatting agent. The PMMA and PC materials are selected to replace TAC materials, the production cost of the polaroid is greatly reduced, and the round polaroid which is high in performance, capable of being reeled to reeled, full in manufacturing process and wide in viewing angle is obtained from the aspects of design, regulation and control of a polaroid base film raw material formula.