Structural antibacterial polyurethane flexible foam material and preparation method thereof

A polyurethane soft foam and polyol technology, which is applied in the field of polyurethane foam, can solve the problems of large dosage, non-environmental protection, discoloration, etc., and achieve the effects of good antibacterial performance, stable performance, and good compatibility

Inactive Publication Date: 2018-12-25
南通新艺材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the presence of a large number of antibacterial agents, the effect of inhibiting the reproduction of bacteria and mold can be ach

Method used

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  • Structural antibacterial polyurethane flexible foam material and preparation method thereof
  • Structural antibacterial polyurethane flexible foam material and preparation method thereof
  • Structural antibacterial polyurethane flexible foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1), in parts by weight, 10 parts of structure antibacterial type pure water-based nano fluorine-containing polyols, 50 parts of highly active polyether polyols 330N, 50 parts of polyether polyols WANOL F3156, 2.0 parts of guanidine-containing hydrochloric acid Add salt chain extender, 0.3 part of dibutyltin dilaurate and 1.0 part of silicone oil into a tetrafluoroethylene container with a volume of 1L, control the speed at 5000rmp, and stir at room temperature for 30s to obtain a structural antibacterial polyurethane soft foam material A components.

[0043] (2) Take the A component obtained in the above step (1) and 55.6 parts of TDI, put it in a polytetrafluoroethylene container, control the rotation speed at 5000rmp, stir at room temperature for 20s, and pour it into a self-made 20cm×10cm×10cm polytetrafluoroethylene mold Curing in medium for 110s, curing at room temperature for 36h, a structural antibacterial polyurethane soft foam material is obtained.

[0044] A...

Embodiment 2

[0046] (1), in parts by weight, 10 parts of structure antibacterial type pure water-based nano fluorine-containing polyols, 40 parts of highly active polyether polyols 330N, 60 parts of polyether polyols WANOL F3156, 2.0 parts of guanidine-containing hydrochloric acid Add salt chain extender, 0.4 parts of stannous octoate and 1.0 parts of silicone oil into a tetrafluoroethylene container with a volume of 1L, control the rotation speed at 5000rmp, stir at room temperature for 30s, and obtain a component A of a structural antibacterial polyurethane soft foam material .

[0047](2) Take the A component obtained in the above step (1), 35.4 parts of TDI, and 23.6 parts of MDI, put it in a polytetrafluoroethylene container, control the rotation speed at 5000rmp, stir at room temperature for 15s, and pour it into a homemade 20cm×10cm×10cm poly Curing in a tetrafluoroethylene mold for 110 seconds, and curing at room temperature for 36 hours, a structural antibacterial polyurethane sof...

Embodiment 3

[0050] (1), in parts by weight, 8 parts of structure antibacterial type pure water-based nano fluorine-containing polyols, 42 parts of highly active polyether polyols 330N, 60 parts of polyether polyols WANOL F3156, 3.0 parts of guanidine-containing hydrochloric acid Add salt chain extender, 0.2 parts of dibutyltin dilaurate, 0.3 parts of triethylenediamine and 0.5 parts of silicone oil into a tetrafluoroethylene container with a volume of 1L, control the speed at 5000rmp, and stir at room temperature for 30s to obtain a structure Component A of antibacterial polyurethane soft foam material.

[0051] (2) Take the A component obtained in the above step (1) and 55.6 parts of TDI, put it in a polytetrafluoroethylene container, control the rotation speed at 5000rmp, stir at room temperature for 30s, and pour it into a homemade 20cm×10cm×10cm polytetrafluoroethylene mold Curing in medium for 110s, curing at room temperature for 36h, a structural antibacterial polyurethane soft foam...

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Abstract

The invention discloses a preparation method of a structural antibacterial polyurethane flexible foam material. The preparation method includes: weighing structural antibacterial pure-water nano fluorine-bearing polyol, high-activity polyether polyol 330N and polyether polyol WANOL F3156, adding them into a reaction container, adding certain parts by weight of guanidine-bearing hydrochloride chainextender, catalyst and foam stabilizer, and stirring well fast to form component A; using an isocyanate as component B, mixing well quickly the components A and B, pouring the mixture into a mold, and foaming to obtain the structural antibacterial polyurethane flexible foam material. Antibacterial performance test results show that the structural antibacterial polyurethane flexible foam materialhas antibacterial rate of >/=99.0% for both Escherichia coli and Staphylococcus aureus, and has excellent antibacterial performance.

Description

technical field [0001] The invention belongs to the field of polyurethane foam, and relates to a flexible polyurethane foam material, in particular to a method for preparing a structural antibacterial flexible polyurethane foam material. Background technique [0002] Flexible polyurethane foam (abbreviated as soft polyurethane foam) refers to a type of flexible polyurethane foam with certain elasticity, and it is the most widely used polyurethane product. Polyurethane soft foam has an open-cell structure, has the advantages of light weight, softness, good resilience, low relative density, and high specific strength. It is an ideal cushion material and is widely used as furniture cushions and vehicle seats. Human health is closely related. [0003] Since the polyurethane material contains the nutrients necessary for microorganisms (bacteria and mold), these microorganisms will multiply under suitable temperature and humidity conditions, and the secretions produced will cause...

Claims

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Application Information

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IPC IPC(8): C08G18/32C08G18/40C08G18/46C08G18/48C08G18/66C08G18/76
CPCC08G18/3275C08G18/4018C08G18/4607C08G18/48C08G18/4804C08G18/6622C08G18/7614C08G2110/0008C08G2110/0083
Inventor 林永飞贾润萍崔爱华
Owner 南通新艺材料科技有限公司
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