Method for preparing mineral-fiber-filled high-strength environment-friendly rich mineral paper

Abstract

The invention relates to a mineral-fiber-filled high-strength environment-friendly rich mineral paper. The rich mineral paper is prepared by combining high-density polyethylene, linear low-density polyethylene resin, inorganic powder, non-metallic mineral fiber, a foaming agent, an antioxidant, a light stabilizer and additives as raw materials. The rich mineral paper comprises the following components in parts by weight: 10-15 parts of high-density polyethylene, 10-15 parts of linear low-density polyethylene resin, 65-75 parts of inorganic powder, 5 parts of non-metallic mineral fiber, 0.1-0.2 part of a foaming agent, 0.1-0.2 part of an antioxidant, 0.1-0.2 part of a light stabilizer and 0-2 parts of additives, wherein the total sum of the amount of the materials as the reference starting materials is 100 parts by weight. The preparation method comprises the steps of blending, mixing, granulating and molding. By virtue of the method disclosed by the invention, the dimensional stability, heat resistance, chemical resistance, flame resistance, electrical insulation and other properties of the rich mineral paper are improved. Due to the adoption of a three-layer co-extrusion process, the specific surface area is large, the specific weight is reduced, and the hardness, paper feeling, printing effect and ink absorption property are improved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a preparation method of mineral fiber-filled high-strength environment-friendly stone paper. Background technique [0002] Mineral fiber is a fiber obtained from mineral rocks with a fibrous structure. The main components are various oxides, such as silicon dioxide, aluminum oxide, magnesium oxide, etc., and its main source is various types of asbestos, such as chrysotile and crocidolite. Wait. Mineral fiber, which uses specially selected basalt and other ores as raw materials, undergoes specific pretreatment, melting at a high temperature of 1500°C, refining and spinning, and special surface treatment. The softening point of mineral fiber is about 1200°C, the appearance of the fiber is smooth and complete, and it is safe to use and will not cause harm to the human body. The naturally occurring white fibrous ore is used to prepare new materials for active papermaking after ...

AI Technical Summary

Problems solved by technology

It has been reported that mineral fiber (hereinafter referred to as mineral fiber) is used in plant fiber papermaking process, but there is no report that mineral fiber is used in stone paper manufacturing process; stone paper has the following advantages compared with traditional fiber papermaking: 1 1. The production process of the product is simple and low energy consumption; 2. Protect forest resources, ecological resources and water resources; 3. Reduce the discharge of toxic and harmful substances, no waste discharge, no plant fiber, and reduce the cost of papermaking