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Composite material of similar fluid inorganic nano particle and polymer and preparation thereof

A technology of inorganic nanoparticles and composite materials, which is applied in the field of composite materials and preparation of fluid inorganic nanoparticles and polymers, and can solve the problem that no new composite materials of fluid-like inorganic nanoparticles and polymers have been seen, and transparent sheets cannot be prepared. Compatible with film and composite material application limitations, etc., to achieve the effect of strong plasticity, low manufacturing cost, and reduced product cost

Inactive Publication Date: 2007-02-28
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, although these inorganic nanoparticles are surface-treated, they still have agglomeration, so that such materials cannot be prepared into transparent sheets and films.
At present, the inorganic nanoparticles in the polymer / inorganic nanoparticle composite materials studied at home and abroad all exist as solids, so they only have the function of fillers, which greatly limits the application of composite materials.
So far, there have been no reports on new composite materials composed of fluid-like inorganic nanoparticles and polymers.

Method used

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  • Composite material of similar fluid inorganic nano particle and polymer and preparation thereof
  • Composite material of similar fluid inorganic nano particle and polymer and preparation thereof
  • Composite material of similar fluid inorganic nano particle and polymer and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 3 parts fluid-like nanometer CaCO by volume ratio 3 Particles (5-40 nanometers) and 97 parts of PVC are mixed evenly, and then plasticized and mixed in an extruder at a temperature of 160±20°C and a speed of 15±5 rpm, and finally calendered on a calender at a calendering temperature of 170±10°C. A transparent composite film is obtained. Data are as follows:

[0022]

Embodiment 2

[0024] Fluid-like nano-SiO with a volume ratio of 8-10 parts 2 Particles (5-20 nanometers) and 90-92 parts of polypropylene are uniformly mixed, extruded in an extruder at 175±25° C., and the screw speed is 30±10 revolutions / minute to prepare a composite material plate.

Embodiment 3

[0026] Fluid-like nano-TiO in volume ratio of 2 to 5 parts 2 Particles (10-30 nanometers) and 95-97 parts of polyester are mixed evenly, melted and extruded to granulate, and the temperature of the four-stage heating zone from the feed inlet to the extruder head is 240°C, 260°C, 260°C and 250°C respectively. °C, the screw speed is 30 rpm. Finally, they are calendered and formed on a calender at a temperature of 220±10° C. respectively. Fluid-like TiO 2 Particle / polyester composite film. Its mechanical properties are as follows.

[0027]

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Abstract

The invention discloses a composite material of like-fluid inorganic nanometer particle and polymer and preparing method, which is characterized by the following: the composite material is consists of m parts of like-fluid inorganic nanometer particle and 100-m parts of thermoplastic polymer, which are mixed at melting temperature+-20DEG C for once forming (0<m<=10); the polymer concludes chloroethylene, polyethylene, polypropylene, polystyrene, nylon and polyester; the inorganic nanometer particle concludes nanometer calcium carbonate, nanometer silicon dioxide and nanometer titanium dioxide.

Description

technical field [0001] The invention relates to a compound material of fluid-like inorganic nanoparticles and polymers and a preparation method thereof. It belongs to the category of organic / inorganic composite materials. Background technique [0002] Organic / inorganic nanocomposites realize the complementary excellent properties of polymers and inorganic materials, and are an important way to prepare new high-performance materials. When inorganic nanoparticles are added to the polymer, due to the stress concentration of the inorganic nanoparticles, it can cause micro-cracks in the surrounding resin and absorb a certain amount of deformation energy. The contact area between (inorganic nanoparticles) and the matrix (polymer) increases, and more microcracks are generated when the material is impacted, absorbing more impact energy, thereby increasing the modulus and strength of the polymer. Therefore, inorganic nanoparticles have a strengthening and toughening effect on polym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L23/12C08L25/06C08L77/00C08L67/00C08K3/36B29B7/00B29C43/24C08K3/26C08K3/22
Inventor 熊传溪董丽杰苏小红郭红雷佑安姚军龙
Owner WUHAN UNIV OF TECH
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