Polyamide polymerization or co polymerization / clay nano composite materials and process for preparing same

Abstract

The invention discloses a polyamide polymerization or copolymerization and clay nanometer composite material and making method, which comprises the following steps: adopting polyamide monomer, multivariate monomer copolymerization and organic disposed nanometer clay according to certain proportion to blend at high temperature for several hours; adding 10-20 percent ring-opening water to proceed polymerization reaction; exchanging amide salt between polyamide and cation in clay layers; plugging polyamide lattice in the clay lattice layers; dispersing clay nanometer dimension in the polyamide copolymerization to satisfy the necessary condition for polyamide and clay. The invention reinforces extension property, which saves energy and period.

Description

Technical field: [0001] The invention belongs to the modification technology of polyamide (nylon), and relates to a hybrid composite material of organic and inorganic materials formed by compounding polyamide organic polymers and nano-scale fine inorganic materials and a preparation method thereof, in particular to polyamide polymerization or copolymerization / clay Nanocomposites and new methods for their preparation. Background technique: [0002] Polyamide has been extended for more than 60 years. It is one of the most widely used engineering plastics. Due to its regular arrangement in molecular structure, many hydrogen bond structures can be formed between macromolecules. A crystalline polymer with certain reactivity, which has excellent mechanical properties, wear resistance, self-lubrication, oil resistance and good processability. But it also has its shortcomings, such as strong water absorption and hygroscopicity, resulting in poor dimensional stability of the product...

AI Technical Summary

Problems solved by technology

According to the U.S. patent, the "two-step method" of clay intercalation and expansion treatment first, and then polymerizing the treated clay with polyamide monomers has complex procedures, high energy consumption, high cost, and low production efficiency. Shortcomings, a one-step in-situ intercalation polymerization method is proposed, which has the advantages of simple fabrication, high production efficiency, low cost, and good performance of composite materials.