Nanocomposite and thermoplastic nanocomposite resin composition using the same
A technology of nanocomposite materials and resin compositions, which is applied in the direction of nanotechnology, nanotechnology, nanostructure manufacturing, etc., and can solve the problems of high reinforcement effect, non-existence, weak bonding strength, etc.
Inactive Publication Date: 2007-07-18
LOTTE ADVANCED MATERIALS CO LTD
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Problems solved by technology
[0002] In general, thermoplastic resins are widely used due to their light weight and excellent moldability, but they also have disadvantages: poor heat resistance, abrasion resistance, and rigidity
However, a resin composition prepared by mixing an inorganic filler and a thermoplastic resin does not have a high enough reinforcing effect as desired because the bonding strength between the inorganic filler and the matrix resin is weak
In addition, a large amount of inorganic fillers can cause severe deterioration of impact strength
Method used
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Embodiment 1～6
[0083] The ingredients shown in Table 1 were mixed, and then the mixture was melted and extruded into pellets by a twin-screw extruder (L / D=29 and Φ=45 mm). The cylinder temperature of the extruder was maintained at 220°C. The pellets were dried at 80°C for 6 hours. The dried pellets were molded into test specimens using a 6 oz injection molding machine at a molding temperature of 240-280°C, and a barrel temperature of 60-80°C. A transmission electron micrograph (TEM) of the thermoplastic nanocomposite resin obtained in Example 1 is shown in FIG. 1 . As shown in Figure 1, the nanoparticles are uniformly dispersed throughout the matrix.
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Abstract
A nanocomposite and thermoplastic nanocomposite resin composition using the same are disclosed. The nanocomposite comprises about 100 parts by weight of a rubber- modified graft copolymer and about 0.1-50 parts by weight of colloidal metal or metal oxide nanoparticles. The colloidal metal or metal oxide nanoparticles are bound to the surface of the rubber-modified graft copolymer. The thermoplastic nanocomposite resin composition comprises about 10-40 parts by weight of the nanocomposite and about 60-90 parts by weight of a thermoplastic resin. The thermoplastic nanocomposite resin composition has good mechanical properties such as impact strength, tensile strength, and modulus.
Description
technical field [0001] The present invention relates to nanocomposites and thermoplastic nanocomposite resin compositions using nanocomposites. More specifically, the present invention relates to a nanocomposite in which colloidal metal or metal oxide nanoparticles are adsorbed onto the surface of a rubber-modified graft copolymer latex, and a thermoplastic nanocomposite resin composition , the thermoplastic nanocomposite resin composition has improved mechanical properties by mixing the nanocomposite material with the thermoplastic resin. Background technique [0002] In general, thermoplastic resins are widely used due to their light weight and excellent moldability, but also have disadvantages of poor heat resistance, abrasion resistance, and rigidity. [0003] Ceramics, on the other hand, have a low coefficient of thermal expansion and are superior in wear resistance and rigidity. However, they also require calcination and machining to obtain the desired shape. Theref...
Claims
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IPC IPC(8): B82B3/00
CPCC08F6/18B82Y30/00C08F279/02C08F279/04C08F285/00C08L51/04C08L55/02C08L2666/02B82B3/00B82Y40/00C08F253/00
Inventor 金一镇朱虎郑东旭康顺健
Owner LOTTE ADVANCED MATERIALS CO LTD