Composite wet strength agent and production method thereof

Abstract

The invention discloses a composite wet strength agent and a production method thereof. The composite wet strength agent is prepared from, in parts by mass, 5-8 parts of polyamide epichlorhydrin, 3-4 parts of lauryl sodium sulfate, 4-7 parts of hydroxyethyl cetane cellulose, 8-10 parts of mono lauryl phosphate potassium, 5-7 parts of p-toluene sulfonic acid, 8-11 parts of polyethylene glycol, 12-15 parts of urea, 6-8 parts of polyethylene polyamine, 7-9 parts of cyclohexane, 4-5 parts of sodium sulfamate, 0.5-1.5 parts of catalyst, 7-8 parts of dodecyl trimethyl ammonium chloride and 13-21 parts of water by mixing, stirring, reacting and pH (potential of hydrogen) adjusting. The prepared composite wet strength agent is in an emulsion form and is better in stability; the retention time is a year; no organic solvent harmful to a human body is added in a preparation process, so that the composite wet strength agent is green and environment-friendly; and when the composite wet strength agent is used for coating paper, the dry and wet tensile strength of the paper is greatly improved.

Description

technical field [0001] The invention relates to a wet strength agent, in particular to a composite wet strength agent and a production method thereof. Background technique [0002] As an additive, wet strength agent is mainly used in the paper industry. Wet strength agents include permanent wet strength agents and temporary wet strength agents. Conventional wet strength agents are used in paper products, and their tensile strength is small, which cannot improve the quality of paper. To improve the effect of wet strength agent, it is necessary to enhance the strength between fibers, form water-insensitive chemical bonds, form complex polymer networks, etc., in order to effectively improve the performance of wet strength agent and improve the tensile strength of paper products. [0003] The existing wet strength agent is mainly based on PAE wet strength agent. In the preparation process of PAE wet strength agent, organic solvents and formaldehyde polymers are used, which...

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Problems solved by technology

[0003] The existing wet strength agent is mainly based on PAE wet strength agent. In the preparation process of PAE wet strength agent, organic solvents and formaldehyde polymers are used, which are harmful to human health, and harmful substances will be produced during the preparation process. environmental pollution

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