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Mineral fiber softening agent

A technology of mineral fiber and softener, which is applied in fiber treatment, inorganic fiber/sheet, textile and paper making, etc. It can solve the problems of easy peeling, abrasion, lack of strong adhesion and penetration characteristics, etc., to improve dry strength and bond strength Effect

Inactive Publication Date: 2015-12-16
广州市朗尔化工助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of strong adhesion and penetration properties of the hydrophilic polymer modified by coupling, the surface of the mineral fiber is smooth, rigid, and the specific surface area is small, so it is difficult to firmly connect the coated softener. Severe wear and tear, easy to peel off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) 15 parts by weight of wheat gluten, 10 parts by weight of sodium silicate, 0.5 parts by weight of alginic acid, 0.2 parts by weight of γ-methacryloxypropyltrimethoxysilane and an appropriate amount of acylating agent are mixed and modified , the mixing equipment selects a kneader, a grinder or a screw machine, and forms a gel powder through mechanical extrusion and acylation, wherein the acylating agent is acetyl chloride, and the consumption is 1% of the gluten powder quality;

[0036] (2) Add the gel powder obtained in step (1), 40 parts by weight of vinyl acetate-ethylene copolymer emulsion, and 5 parts by weight of chlorinated polyethylene emulsion into the reaction kettle, heat at 40-60°C, and stir at 200-400rpm Modulated into fine jelly;

[0037] (3) The jelly obtained in step (2) is formed into fine colloidal particles with a high-speed centrifugal atomizer, and rapidly heated by high-temperature airflow to obtain a dry powder softener.

[0038] The softener...

Embodiment 2

[0040] (1) Mix and modify 15-25 parts by weight of wheat gluten, 5-15 parts by weight of aluminum sulfate, 1 part by weight of polyvinyl alcohol, 0.3 parts by weight of vinyltriethoxysilane and an appropriate amount of acylating agent, and the mixing equipment Select kneader, grinder or screw machine to form gel powder by mechanical extrusion and acylation, wherein the acylating agent is a kind of acetic anhydride, and the consumption is 2% of the gluten powder quality;

[0041] (2) Add the gel powder obtained in step (1), 45 parts by weight of vinyl acetate-ethylene copolymer emulsion, and 5 parts by weight of chlorinated polyethylene emulsion into the reaction kettle, heat at 40-60°C, and stir at 200-400rpm Modulated into fine jelly;

[0042] (3) The jelly obtained in step (2) is formed into fine colloidal particles with a high-speed centrifugal atomizer, and rapidly heated by high-temperature airflow to obtain a dry powder softener.

Embodiment 3

[0044] (1) Mix and modify 20 parts by weight of gluten powder, 15 parts by weight of sodium silicate, 1.5 parts by weight of agar, 0.5 parts by weight of vinyltrimethoxysilane and an appropriate amount of acylating agent. The mixing equipment is kneader and grinder Or screw machine, form gel powder by mechanical extrusion and acylation, wherein acylating agent is a kind of in glacial acetic acid, consumption is 3% of gluten quality;

[0045] (2) Add the gel powder obtained in step (1), 55 parts by weight of vinyl acetate-ethylene copolymer emulsion, and 4 parts by weight of chlorinated polyethylene emulsion into the reaction kettle, heat at 40-60°C, and stir at 200-400rpm Modulated into fine jelly;

[0046] (3) The jelly obtained in step (2) is formed into fine colloidal particles with a high-speed centrifugal atomizer, and rapidly heated by high-temperature airflow to obtain a dry powder softener.

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Abstract

The invention discloses a mineral fiber softening agent. The mineral fiber softening agent is prepared from the following raw materials in part by weight: 40-55 parts of vinyl acetate-ethylene copolymer emulsion, 15-25 parts of vital gluten, 5-15 parts of inorganic adhesives, 3-5 parts of chlorinated polyethylene emulsion, 0.5-2 parts of organic adhesives and 0.2-0.5 part of silane unsaturated monomer. The vital gluten, the inorganic adhesives and the organic adhesives are subjected to compound modification in an acylation manner, by a strong polarity polar group of the chlorinated polyethylene emulsion, the obtained softening agent has high-permeation adhesion on mineral fibers, permeates in the fibers and firmly wraps surfaces of the mineral fibers, and owing to viscoelasticity of the vital gluten, the mineral fibers have good flexibility. Because the softening agent contains the water-soluble inorganic adhesives, metal cation electrolytes are formed on surfaces of the mineral fibers when the mineral fibers are softened by the softening agent, potential difference is generated between the surfaces of the mineral fibers and surrounding liquid, particularly, a binding force of the mineral fibers and plant fibers is increased, when the plant fibers are replaced, the mineral fibers can be connected with the plant fibers, ionic bonds are formed by combination of ions, and bonding strength of the fibers is improved.

Description

technical field [0001] The invention relates to the field of papermaking auxiliary agents, in particular to a mineral fiber softener. Through the research on the mineral fiber softener, the toughness of the mineral fiber is improved, thereby facilitating the application of the mineral fiber to the papermaking field. Background technique [0002] At present, mineral fibers such as asbestos fibers, sepiolite fibers, fly ash fibers, gypsum fibers, basalt fibers, and glass fibers have been used in papermaking in the papermaking industry. Substituting mineral fiber for plant fiber in papermaking is of great significance for reducing the cost of papermaking, protecting forests and reducing water pollution. The use of mineral fiber paper can significantly improve the printability and evenness of the paper, and has the advantages of flame retardancy, insulation, high temperature resistance, corrosion resistance, heat insulation and so on. Some mineral fibers have strong interfacial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/21D06M15/15D06M15/227D06M11/79D06M11/57D06M15/13D06M15/333D06M15/03D21H13/36
Inventor 陈庆曾军堂
Owner 广州市朗尔化工助剂有限公司
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