Preparation method for preparing nylon porous material on large scale

Abstract

The invention provides a preparation method for preparing a nylon porous material on a large scale. The preparation method is characterized in that the selected raw material is nylon, the preparation process is simple and efficient, water in the production process can be repeatedly utilized, and the preparation method conforms to the environment-friendly concept. The nylon is dissolved by using anhydrous formic acid, and a sodium bicarbonate solution is added for foaming to obtain the porous material which is of a three-dimensional porous structure and has excellent performance. The prepared nylon porous material has the advantages of being low in density, high in porosity, low in heat conductivity, high in specific surface area and the like. Compared with aerogel and other porous materials, the preparation method for preparing the porous material is simple, and low-cost large-scale production can be achieved. The method can be used in heat preservation, heat insulation, marine petroleum pollution treatment, catalyst carriers, sound absorption and shock absorption buffer materials and other fields, and has wide application prospects.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented invented new type of polyamide (PA), called PA6 or PEI) foams with very fine holes that allow gas molecules through while still keeping them warm compared to traditional plastic foils made from regular polymer chains like polytetrafluoroethene). These types of foamed particles may contain various chemical agents for use in cleaning processes such as dishwashings or industrial applications. They will stay suspended even when exposed to sunlight without losing their effectiveness due to being lightweight and resistant against damage from impact forces.

Problems solved by technology

Technological Problem: Current Poly(meth) Foams (POMF), including Highly Dense Permeability Fluorescent Layerless Materials (HDFLM)) that contain fibers within their structures called microfibril lattice networks, lack rigidity and pore size distribution, making these materials difficult for use in different areas like impact strength reinforcement, noise reduction, and vapor phase separation. Previous attempts at producing porous material by sintering techniques resulted in flaws due to imperfections during manufacturing.

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