Preparation method for inorganic fiber softening agent, and modification method for improving softness of inorganic fiber by using inorganic fiber softening agent

Abstract

The invention provides a preparation method for an inorganic fiber softening agent, and a modification method for improving softness of inorganic fibers by using the inorganic fiber softening agent. The preparation method comprises the following steps: dissolving dodecylamine in water; then adding sodium chloroacetate and sodium hydroxide into the obtained dodecylamine solution in sequence and carrying out a reaction; and after completion of the reaction, adding silicone emulsion and carrying out uniform mixing under stirring so as to obtain the inorganic fiber softening agent. The softness of the inorganic fibers can be improved by adding water to wet the inorganic fibers, then adding the inorganic fiber softening agent, carrying out uniform mixing under stirring and then soaking the inorganic fiber for a period of time. The inorganic fiber softening agent synthesized in the invention has improved interaction with the inorganic fibers and strong fiber loosing capacity and can reduce mutual frictional force among the inorganic fibers. As the inorganic fiber softening agent is applied to treatment of the inorganic fibers, the softness of the inorganic fibers can be substantially improved. In the industry of papermaking, modified inorganic fibers obtained after treatment with the method is mixed with vegetable fiber for papermaking, and the prepared paper has substantially improved softness and performance.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a preparation method of an inorganic fiber softener and a modification method for using the softener to enhance the softness of inorganic fibers. Background technique [0002] With the continuous progress of society, human beings are increasingly pursuing the sustainable development of human beings and ecology. Driven by the new situation of pursuing green environmental protection and developing circular economy, the social and economic value of using inorganic fibers made of various slags and industrial wastes to replace traditional plant fiber papermaking cannot be ignored. The traditional paper industry generally has problems such as large consumption of vegetation resources and serious environmental pollution. At the same time, since traditional papermaking raw materials are all made of organic plant fibers, the resulting paper has the characteristics of not being able t...

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Problems solved by technology

[0003] However, there are also huge challenges in the development of inorganic fiber papermaking

Industrially produced inorganic fiber raw cotton mainly has the disadvantages of high brittleness, strong rigidity, short fibers, and many ball slags.

When used in the papermaking industry, there are often the following major problems: first, inorganic fibers cannot be finely fibrillated, have strong rigidity, and poor softness, and are easily broken during transportation after beating and dispersion in the pulping process; second, inorganic fibers Poor dispersibility, prone to problems such as small fiber interweaving and blockage of equipment; third, the paper made of inorganic fibers has a rough surface, is easy to lose powder, has poor flexibility, is not suitable for repeated folding, and has poor hand feeling and poor comfort.

These problems have greatly affected the development and application of inorganic fiber paper

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