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Antibacterial polyurethane foam material and preparation method thereof
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A foaming material, polyurethane technology, applied in the field of antibacterial and polyurethane, can solve the problems of poor heat resistance, easy to fall off, toxicity, etc., and achieve the effect of excellent performance, improved mutual solubility, and uniform structure
Active Publication Date: 2021-06-15
SHANGHAI UNIV +1
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Problems solved by technology
Natural antibacterial agents are safe to use and have no toxic side effects, but have poor heat resistance and short inhibition time; inorganic antibacterial agents are safe to use, heat resistant, and have a broad spectrum of antibacterial properties, but affect the mechanical properties of polyurethane and are easy to fall off; organic synthetic antibacterial agents have fast antibacterial effects , broad-spectrum antibacterial, good inhibitory and anti-mildew effect, but poor heat resistance, short inhibition time and certain toxicity
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Embodiment 1-7
[0040] Examples 1-7 relate to the preparation of 1,2-benzothiazoline-3-keto-modified antibacterial polyurethane foaming material. Embodiment 1-7 of the raw material coordination, such as the following, in Table 1, in Table 1.
[0041] Table 1 Example 1-7 raw material ratio (in weight)
[0042]
[0043]
[0044] The specific steps of Examples 1-7 are as follows:
[0045] (1) Preparation of the first component: mix the polyether polyol, catalyst, foaming agent, foaming stabilizer, 1, 2-benzothiazoline-3-ketone, added to the vessel, high-speed The stirrer is stirred at a temperature of about 40s at 2000 rpm, so that the raw material in the container is uniformly mixed, and the first component is obtained, wherein the addition of 1,2-benzoisothiazoline-3-ketone is 0 parts, 0.1 parts, respectively. 0.2, 0.4, 0.6, 0.8, 1;
[0046] (2) Preparation of antibacterial polyurethane foaming materials: Weighing the corresponding toluene diisocyanate (TDI) as a second component, adding to th...
Embodiment 8-13
[0048] Example 8-13 relates to preparing 2-hydroxymethyl-1,2-benzoisothiazoline-3-keto-modified antibacterial polyurethane foaming material. Embodiment 8-13 The raw material coordination, as described below, in Table 2, in Table 2.
[0049] Table 2 Example 8-13 of the raw material ratio (in weight)
[0050]
[0051]
[0052] The specific steps of Example 8-13 are as follows:
[0053] (1) Preparation of the first component: mixed polyether polyol, catalyst, foaming agent, foaming stabilizer, 2-hydroxymethyl-1,2-benzoisothiazoline-3-ketone to proportion, add In the container, the high-speed stirrer is stirred at a 2000 rpm rate of about 40s, so that the raw material in the container is uniformly mixed, and the first component is obtained, with 2-hydroxymethyl-1,2-benzothiazoline-3- The addition of ketones is 0.1 parts, 0.2 parts, 0.4, 0.6 parts, 0.8, 1 part;
[0054] (2) Preparation of antibacterial polyurethane foaming materials: Weighing the corresponding toluene diisocyanate ...
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Abstract
The invention relates to an antibacterial polyurethane foam material which is prepared by foaming a first component and a second component. The first component comprises the following components in parts by weight: 100 parts of polyether polyol; 0.1-5 parts of an isothiazoline antibacterial agent; 0.2-0.4 parts of a catalyst; 1-4 parts of a surfactant; and 2-6 parts of a chemical foaming agent. The second component is prepared from the following components in parts by weight: 30-40 parts of isocyanate. The invention also relates to a preparation method of the antibacterial polyurethane foam material. According to the antibacterial polyurethane foam material, an isothiazolinone compound capable of being bonded with isocyanate is used as an antibacterial agent, silicone oil is used as a surfactant, the foam structure can be stabilized, the size of the foam can be adjusted, the intersolubility of mixed materials can be improved, and therefore a foam product with a uniform structure and excellent performance can be prepared.
Description
Technical field [0001] The present application relates to antibacterial and polyurethane technology. Specifically, the present application relates to an antibacterial polyurethane foaming material and a preparation method thereof. Background technique [0002] In recent years, the use of polyurethane materials in the fields of health care, food packaging and industries have been concerned by the majority of researchers. However, the polyurethane foamed material has porous and hygroscopicity, resulting in a very easy to grow and reproducing bacteria, resulting in a color of the material itself, is not beautiful, making the material due to the corrosion of the microorganism, resulting in the performance loss of the material, shortened The service life is harmful to the environment and human health. Antibacterial functionalization of polyurethane foaming materials is important for protecting human health, and its development is increasingly attached. [0003] The existing antibacter...
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