Inorganic particles/polymer composite material and its filling agglomerate

Abstract

The inorganic particle / polymer composite material consists of inorganic particle and resin as well as characterized RE modifier to modify the surface of the inorganic particle and synergist to improve the modification effect of the RE modifier. The composite material has excellent mechanical performance, heat performance and outer appearance.

Description

technical field [0001] The invention relates to a new polymer / inorganic particle composite material, in particular, the invention relates to a polymer / inorganic particle composite material using a rare earth modifier. Background technique [0002] Plastic toughening has always been a key topic in the scientific research of polymer materials. Rubber-like elastomers can be dispersed in the plastic matrix in an appropriate way to achieve the purpose of toughening. This toughening method has been studied more and has achieved great success. However, while the toughness of elastomers increases the toughness of plastics, the strength, stiffness, modulus, and heat resistance of materials decrease significantly. [0003] Inorganic particles filled with modified polymers have been widely used. Inorganic particles have many kinds in nature, wide storage, easy processing and low price. The composite of inorganic particles and polymers has two purposes: one is to reduce costs, and the ...

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Problems solved by technology

[0004] In the early days, people used surfactants such as stearic acid, stearate, etc. as modifiers, which were low in cost, but because the modification on the surface of the filler was a physical effect, the modification effect was not ideal; Appeared one after another, so that the performance of polymer materials filled with inorganic particles can be greatly improved

However, the existing commercial coupling agents still have many problems such as insignificant improvement effects: silane coupling agents have obvious viscosity-reducing effects, and there are nearly 100 varieties so far, mainly used in glass fiber reinforced plastics and rubber industries. Olefin resin, its effect is not obvious when dealing with fillers such as calcium carbonate; coupling agents such as titanate coupling agent, borate, zircoaluminate, etc., the modification effect is better, but the cost of the modifier is high, and the modification It is often necessary to use diluents and spraying and feeding processes, resulting in complex process equipment, and the addition of some metal ions will cause problems such as the decline in the anti-aging performance of composite materials; the alumina ester coupling invented by US3,905,936 The modification effect is good, but there are problems such as easy hydrolysis and association, and there are few varieties for thermoplastic resins; we have found that some rare earth complexes have a certain surface treatment effect on calcium carbonate (China Plastics, 2001 No. 10), but there is no report on the use of rare earth materials as modifiers to manufacture filler masterbatches, etc.