Low-temperature water-based waterproof agent and production technology thereof

Abstract

The invention discloses a low-temperature water-based waterproof agent and a production technology thereof. The low-temperature water-based waterproof agent comprises components in percentage by weight as follows: 10%-28% of perfluoroalkylethyl acrylate, 2%-18% of acrylic resin, 1%-15% of organosilicon, 0.1%-5% of a surfactant, 2%-15% of acetic acid, 0.1%-2% of an initiator and the balance of deionized water. A product has good hand feeling, the use amount of fluorine monomer is reduced, the cost is reduced, energy conservation and emission reduction are achieved, the service life and service time of a machine are prolonged, and more importantly, the defect that certain leather and part of textile fabric which are not temperature-resistant cannot be subjected to waterproof treatment when the product is absent previously is overcome.

Description

technical field [0001] The invention relates to a low-temperature water-based waterproofing agent and a production process thereof. Background technique [0002] At present, there are two main types of fluorine-containing waterproofing agents used in the market, one is a perfluorinated water-based three-proof finishing product and the other is a fluorine-containing oily waterproofing agent. Among them, the perfluorinated water-based three-proof finishing products are mainly based on C8 waterproofing agent, which is a long-chain molecular structure. Harmful substances PFOS and PFOA are likely to be produced during production and application, while the molecular chain of C6 waterproofing agent is relatively short. Contains PFOS and PFOA, its substances have a short decomposition period, and it is the most recommended three-proof finishing agent by the international environmental protection department. However, the perfluorinated three-proof finishing agent generally has a hard...

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Problems solved by technology

Among them, the perfluorinated water-based three-proof finishing products are mainly based on C8 waterproofing agent, which is a long-chain molecular structure. Harmful substances PFOS and PFOA are likely to be produced during production and application, while the molecular chain of C6 waterproofing agent is relatively short. Contains PFOS and PFOA, its substances have a short decomposition period, and it is the most recommended three-proof finishing agent by the international environmental protection department. However, the perfluorinated three-proof finishing agent generally has a hard hand. The glass transition temperature of the fabric when it is baked is 160- The disadvantage of high temperature of 180°C, and the large amount of fluorine used, the production cost is high, and some materials that are not resistant to temperature cannot be waterproofed (for example, some non-woven materials can only withstand the temperature of 80°C, otherwise they will be deformed); and the shortcomings of oily waterproofing agents will cause environmental pollution Pollution, harmful to the human body, and it is easy to cause fire in the workshop, and it is impossible to process cloth in batches. The country has vigorously controlled the production of oily products this year. If it is too harmful, it is requested not to use it as much as possible.

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