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CN-121991452-A - Antibacterial and moistureproof mattress and preparation method thereof

CN121991452ACN 121991452 ACN121991452 ACN 121991452ACN-121991452-A

Abstract

The invention belongs to the technical field of functional mattress materials, and in particular relates to an antibacterial and dampproof mattress and a preparation method thereof, wherein the antibacterial and dampproof mattress comprises the following raw materials, by weight, 100 parts of modified latex, 5-12 parts of functional additives, 1.5 parts of sulfur, 1 part of activating agent, 1 part of accelerator CZ, 2.5-5 parts of foaming agent OBSH and 1 part of foam stabilizer, natural latex is subjected to chemical modification through graft copolymerization, so that the natural latex has lasting antibacterial and intrinsic hydrophobic characteristics, and meanwhile, the functional additives with mesoporous adsorption and hydrophobic structures are added, so that a stable physical dampproof network is built in a latex matrix, and a synergistic effect is generated with the hydrophobic characteristics of the latex, so that the mattress is endowed with long-acting antibacterial and dampproof functions.

Inventors

  • LI MENGYI
  • ZHANG LINGYAN

Assignees

  • 浙江梦卡诺家纺有限公司

Dates

Publication Date
20260508
Application Date
20260204

Claims (5)

  1. 1. The antibacterial dampproof mattress is characterized by comprising, by weight, 100 parts of modified latex, 5-12 parts of functional additives, 1.5 parts of sulfur, 1 part of an activating agent, 1 part of a promoter CZ, 2.5-5 parts of a foaming agent OBSH and 1 part of a foam stabilizer; The modified latex comprises natural rubber latex, SDS, DFMA, DML and potassium persulfate; the preparation method of the modified latex comprises the following steps: s1, dissolving SDS, adding DFMA and DML into the SDS to emulsify to obtain emulsion, and dissolving potassium persulfate to obtain an initiator; S2, filtering the natural rubber latex, adding an initiator into the natural rubber latex, and heating and stirring the natural rubber latex to obtain activated latex; And S3, mixing and stirring the activated latex and the emulsion to perform graft copolymerization to obtain a grafting liquid, regulating the temperature and the pH of the grafting liquid, and filtering to obtain the modified latex.
  2. 2. An antimicrobial moisture resistant mattress according to claim 1 wherein the mass ratio of natural rubber latex, SDS, DFMA, DML and potassium persulfate is 100:0.5:8:5:0.5.
  3. 3. An antimicrobial moisture resistant mattress according to claim 1 wherein the functional aid consists of silica, HDTMS, FS1710, glacial acetic acid and absolute ethanol in a mass ratio of 7.5:1.5:0.5:0.02:20.
  4. 4. An antimicrobial moisture resistant mattress according to claim 1 wherein said activator is comprised of zinc oxide and stearic acid in a mass ratio of 3:1; the foam stabilizer is selected from any one of potassium oleate, potassium laurate and fatty alcohol polyoxyethylene ether.
  5. 5. A method of making an antimicrobial moisture resistant mattress according to any one of claims 1 to 4, comprising the steps of: step 1, taking sulfur, an activating agent and a promoter CZ to be dissolved together to obtain a vulcanizing agent, slowly adding a foaming agent OBSH and a foam stabilizer into the vulcanizing agent, and uniformly mixing to obtain a latex additive; Step2, mixing the modified latex with a functional auxiliary agent to obtain a latex matrix, mixing the latex matrix with a latex additive, foaming to obtain a fluid, and vulcanizing and forming the fluid to obtain the formed modified latex; and step 3, cleaning, drying and treating the surface of the formed modified emulsion by low-temperature plasma to obtain the antibacterial and dampproof mattress.

Description

Antibacterial and moistureproof mattress and preparation method thereof Technical Field The invention belongs to the technical field of functional mattress materials, and particularly relates to an antibacterial and dampproof mattress and a preparation method thereof. Background In the research and production of the existing functional mattress, the realization of the functions of antibiosis, mite removal, moisture prevention and the like mainly depends on the application of an antibiosis and mite removal agent on the surface, or the addition of inorganic antibiosis powder such as silver ions and the like and a moisture absorbing material into a matrix material in the foaming process. The moisture-proof function is usually achieved by attaching a waterproof film, coating a hydrophobic finishing agent on the surface, or adding moisture-absorbing particles such as silica gel and calcium chloride into a core material. Although the method has simple process and obvious short-term effect, the method has inherent limitations that the surface coating is extremely easy to abrade and peel under long-term use, friction and sweat erosion to cause rapid function failure, and the physically blended antibacterial agent or hygroscopic agent has poor compatibility with a polymer matrix, is easy to aggregate and migrate and is even released slowly to the environment, thus not only causing uneven function and poor durability, but also possibly causing potential biosafety and environmental risk due to the dissolution of metal ions or organic matters, and being difficult to cope with the requirement of long-acting and stable protection under complex use environments. Therefore, a functional mattress with long-acting antibacterial, dampproof and hygroscopic functions is needed, the problems of serious performance attenuation and easy damage of coatings of the mattress at present are solved, and the protection is provided for improving the healthy life and sanitary environment of families or individuals. Disclosure of Invention The invention adopts the technical scheme that the natural latex is grafted and modified to endow the matrix material with durable antibacterial activity and inherent hydrophobicity, and then a functional auxiliary agent with mesoporous adsorption and hydrophobicity is utilized to construct an efficient and stable physical moistureproof network in the material, and the physical moistureproof network is cooperated with the inherent hydrophobicity of the modified latex to finally realize the antibacterial and moistureproof effects of the functional mattress. The invention provides an antibacterial and dampproof mattress which comprises the following raw materials, by weight, 100 parts of modified latex, 5-12 parts of functional additives, 1.5 parts of sulfur, 1 part of an activating agent, 1 part of a promoter CZ, 2.5-5 parts of a foaming agent OBSH and 1 part of a foam stabilizer. Further, the activator consists of zinc oxide and stearic acid in a mass ratio of 3:1. Further, the foam stabilizer is selected from any one of potassium oleate, potassium laurate and fatty alcohol polyoxyethylene ether. Further, the functional auxiliary agent consists of silicon dioxide, HDTMS (hexadecyl trimethoxy silane), FS1710 (heptadecafluorodecyl trimethoxy silane), glacial acetic acid and absolute ethyl alcohol according to the mass ratio of 7.5:1.5:0.5:0.02:20. Further, the modified latex comprises natural rubber latex, SDS (sodium dodecyl sulfate), DFMA (dodecafluoroheptyl methacrylate), DML (methacryloxyethyl dimethyl benzyl ammonium chloride) and potassium persulfate, wherein the mass ratio of the natural rubber latex to the SDS, DFMA, DML to the potassium persulfate is 100:0.5:8:5:0.5. Further, the preparation method of the modified latex comprises the following steps: S1, dissolving SDS in deionized water to obtain SDS solution, adding DFMA and DML into the SDS solution, shearing and emulsifying to prevent monomer from self-polymerization, improving the stability and uniformity of a reaction system, and using the SDS solution in subsequent grafting reaction to obtain emulsion, and dissolving potassium persulfate to obtain an initiator; s2, filtering natural rubber latex, adding an initiator into the natural rubber latex, heating and stirring the natural rubber latex, promoting the thermal decomposition of potassium persulfate to generate sulfate radical anions, and attacking relatively active alpha-hydrogen atoms and double bonds in a molecular chain of the rubber latex to generate macromolecular radical active centers on a main chain so as to provide reactive sites for subsequent grafting to obtain activated latex; And S3, mixing the activated latex and the emulsion, stirring for graft copolymerization, enabling sulfate radical anion free radicals to attack carbon-carbon double bonds of DFMA and DML monomers at the same time, promoting polymerization of the monomers, and enabling polymer chains in polymerization to