Composition for environment-friendly door and window materials containing inorganic filling material and fiber reinforcement material and preparation method thereof
A fiber-reinforced material and filling material technology, which is applied in the field of environment-friendly door and window material compositions and its preparation, can solve the problems of difficulty in replacing low-priced PVC resin and high manufacturing costs, and achieve the effect of low price and good durability
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[0045] Preparation of rubber and grafted resin
[0046] Acrylic rubber, which is a rubbery polymer, is polymerized using an emulsion polymerization method. 10 parts by weight of butyl acrylate monomer, 0.1 part by weight of divinylbenzene as a crosslinking agent, 0.15 parts by weight of cumene hydroperoxide (Cumenehydroperoxide) as an oil-soluble initiator, 0.15 parts by weight of cumene hydroperoxide as a fatty acid metal Potassium persulfate of salt, 3 parts by weight of sodium lauryl sulfate as an emulsifier, 150 parts by weight of pure water as a dispersion solvent are added to the polymerization tank, the temperature is raised to 70°C for stirring and 90 parts by weight of A butyl acrylate monomer and 0.9 parts by weight of a crosslinking agent were polymerized for 4 hours to prepare. In addition to the additives, triarylisocyanurate, triarylcyanurate, aryl methacrylate, ethylene glycol dimethacrylate, etc. can be used as the crosslinking agent , Benzene peroxide, dicu...
Embodiment 1
[0052] With a mixer, 100 parts by weight of thermoplastic resin composed of 40 parts by weight of dry powder and 60 parts by weight of SAN, 10 parts by weight of sepiolite with a fiber diameter of 50 microns, an aspect ratio of 10:1, and a pH of 8 , 5 parts by weight of calcium carbonate with a diameter of 10 μm, 2 parts by weight of benzotriazole, 2 parts by weight of white pigment, 1 part by weight of external lubricant and 0.5 part by weight of surface modifier are mixed, and the dry The powder is a dry powder of latex mixed with grafted acrylic rubber and grafted butadiene rubber at a weight ratio of 85:15, using magnesium sulfate as electrolyte for salting out. The mixed product was extruded according to the extrusion conditions described later and its physical properties were measured, which are listed in Table 1.
Embodiment 2~4
[0054] Except that the contents of the inorganic filler and the fiber reinforcement were adjusted as shown in Table 1, the rest were carried out under the same conditions as in Example 1.
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