Quaternary phosphonium salt type organic silicon latex and preparation method thereof

Abstract

The invention relates to quaternary phosphonium salt type organic silicon latex which comprises the following components in parts by mass: 10-20 parts of quaternary phosphonium salt type organic silicon emulsion, 65-80 parts of latex, 3-6 parts of a coupling agent, 2-5 parts of a stabilizer, 1-3 parts of an initiator, 1-3 parts of a coagulator and 1-2 parts of a foaming agent. The preparation method comprises the following steps: preparing an organic silicon emulsion with positive charges by adopting a quaternary phosphonium salt modified organic silicon emulsion, then modifying latex with negative charges by adopting a heterocoagulation grafting method, selecting a proper catalyst, and synthesizing quaternary phosphonium salt type organic silicon latex by controlling a formula and a synthesis process. Since the organic silicon emulsion contains a quaternary phosphonium salt active matrix, good antibacterial and mildew-proof performance can be achieved; and the surface of the preparedlatex product has excellent performance of organic silicon, water resistance and solvent resistance are greatly improved, meanwhile, the quaternary phosphonium salt is introduced, the latex product has lasting antibacterial, mildew-proof and deodorant effects, the latex product is safe and reliable to the human body, the environment is not polluted, and the product grade is improved.

Description

technical field [0001] The invention relates to the latex field and is applied to sponges, in particular to a quaternary phosphonium salt type silicone latex and a preparation method thereof. Background technique [0002] Latex pillows and latex mattresses will slowly oxidize and turn yellow after long-term use. In addition, in a humid environment, due to airtightness, microbial aggregation, or synthetic latex, the surface is easy to breed bacteria and cause mildew; if you want to effectively To effectively prevent latex products from mildew, fungicides must be used, including organometallic compounds, organosulfur compounds, organochlorine compounds or other organic compounds. [0003] However, latex sponges treated with organometallic compounds are harmful to the human body; quaternary ammonium salts and quaternary phosphonium salt organic compounds have cationic surface activity and can absorb negatively charged microorganisms on the surface to inactivate them, thereby ha...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a quaternary phosphonium salt type silicone latex and its preparation method. Aiming at the shortcomings of current latex sponges such as easy yellowing and mold growth, a new generation of latex sponge is developed by adding a quaternary phosphonium salt type silicone latex. Solvent-resistant, water-resistant and antibacterial and anti-mildew latex sponges have great development prospects for the multi-functional development of latex pillows, latex mattresses and other products

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