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Reacting nano inorganic particle/polymer composite material

A technology of nano-inorganic particles and composite materials, applied in the field of reactive nano-inorganic particles/polymer composite materials, can solve the problems of difficulty in effectively changing the interaction between particles and the matrix, weak entanglement, etc., and achieve improved rigidity, enhanced interface interaction, Improve the effect of dispersion

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Problems solved by technology

However, the entanglement between the chains is relatively weak, and it is difficult to effectively change the interaction between the particles and the matrix.

Method used

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  • Reacting nano inorganic particle/polymer composite material
  • Reacting nano inorganic particle/polymer composite material

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Embodiment Construction

[0021] Using toluene as a solvent, under the protection of nitrogen, the coupling agent is γ-methacryloxypropyltrimethoxysilane and nano-silica particles for reflux reaction for 8 hours to obtain pretreated nano-inorganic particles; Glycidyl acrylate (GMA) was grafted and polymerized in the presence of a free radical initiator azobisisobutyronitrile (AIBN), the reaction temperature was 80°C, and the reaction time was 5 hours; modified nano-silica (SiO 2 -g-PGMA). The GMA consumption is 100% by weight of the pretreatment nano-inorganic particles, and the free radical initiator consumption is 0.4% by weight of the GMA consumption; the consumption of the coupling agent γ-methacryloxypropyltrimethoxysilane is 50% by weight of the particles.

[0022] Using toluene as a solvent, under the protection of nitrogen, the coupling agent is γ-methacryloxypropyltrimethoxysilane and nano-silica particles for reflux reaction for 8 hours to obtain pretreated nano-inorganic particles; Glycidy...

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Abstract

This invention discloses a kind of reactive inorganic nanoparticle / polymer composite materials which comprises 1~5wt% inorganic nanoparticles, 2.5~10wt% reactive compatilizers and 85~96.5wt% polymer matrix. In this invention, reactive compatilization technology is adopted, that is, inorganic nanoparticles react with polymer in situ during ordinary blending to produce grafted compounds, which greatly enhances the interfacial effect between inorganic nanoparticles and polymer matrix so that both the interfacial adhesion strength and the dispersion of inorganic nanoparticles in the matrix are greatly improved and mechanical properties of the prepared composite materials are effectively promoted. This invention requires no special apparatus or technique the composite materials with good comprehensive properties can be obtained with only common facilities.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a reactive nano inorganic particle / polymer composite material. Background technique [0002] The size range of nano-inorganic particles is usually 1-100nm, and has the characteristics of small size, large specific surface area, high surface energy, and large proportion of surface atoms. It can significantly improve the mechanical properties of polymers and produce some special optical, electrical, magnetic and other effects at low content. Therefore, the study of nanocomposite materials has aroused people's strong interest in recent years, and has become the most vigorous research object in the field of new material research. [0003] However, the surface energy of inorganic nanoparticles is very large, which makes them extremely prone to agglomeration and aggregation. Therefore, it is difficult to obtain uniform dispersion at the true nanometer scale by the general direct blend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/00C08F2/44C08F20/00C08K3/36C08K3/26
Inventor 章明秋周红军容敏智阮文红
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