Cellulose/melamine-formaldehyde composite resin and preparation method thereof

Abstract

A cellulose / melamine-formaldehyde composite resin, the raw materials of the cellulose / melamine-formaldehyde composite resin comprise by weight percentage: 30-90% of melamine-formaldehyde resin, 5-60% of cellulose powder, 0.01-0.1% of curing agent, 0-20% of inorganic filler, 1-5% of surface modifier, 1-20% of dimer acid. A preparation method of the said cellulose / melamine-formaldehyde composite resin is also provided. The preparation method comprises the following steps: stirring the raw materials, then sieving and molding.

Description

[0001]The present application claims priority to Chinese patent application NO. 201811285171.8, filed to the Chinese Patent Office on Oct. 31, 2018, entitled “CELLULOSE / MELAMINE-FORMALDEHYDE COMPOSITE RESIN AND PREPARATION METHOD THEREOF”, the entire disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTIONTechnical Field[0002]The present application relates to the field of polymer material, and in particular to cellulose / melamine-formaldehyde composite resin and preparation method thereof.Description of Related Art[0003]Melamine-formaldehyde resin, also known as melamine resin, is obtained by polycondensation reaction of melamine and formaldehyde in a suitable medium. The resin is widely used in the manufacture of imitated porcelain tableware, electrical appliances and other daily necessities. However, melamine-formaldehyde resin has the disadvantages of large brittleness, poor toughness, easily broken by stress etc. Cellulosic biomass powders are widely u...

AI Technical Summary

Benefits of technology

This patent describes a new type of resin made from cellulose and melamine-formaldehyde, which has good strength but is also flexible and easy to prepare. This resin can be used to make various products that are safer and environmentally friendly. The invention also includes the use of certain chemicals to improve the compatibility and low-cost of the resin. Additionally, the invention uses natural plant materials that are regenerated and environmentally friendly as a raw material for the production of the resin, which solves the problems of traditional materials like plastics. The invention also describes the use of certain inorganic materials to enhance the strength of the resin. The use of dimer acid as a toughening agent is also described, which can improve the strength and flexibility of the resin. Overall, this patent provides a simple and cost-effective solution for improving the properties of melamine-formaldehyde resin.

Problems solved by technology

However, melamine-formaldehyde resin has the disadvantages of large brittleness, poor toughness, easily broken by stress etc.

The melamine-formaldehyde resin / cellulose powder molded product has poor strength and is more likely to be broken than melamine resin.

Because the melamine-formaldehyde resin produced by the prior art still has deficiency of large brittleness and easy falling off, and the biomass cellulose powder with poor composite strength and complex composition, the obtained melamine formaldehyde resin / cellulose powder molded product has poor strength, is easily broken when subjected to force or drop.