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Modified nano titanium dioxide polyurethane composite material and preparation technology thereof

A technology of nano-titanium dioxide and composite materials, which is applied in the field of modified nano-titanium dioxide polyurethane composite materials and its preparation process, which can solve the problems of weak antibacterial properties, easy aggregation of nano-titanium dioxide particles, and poor dispersion, and achieve enhanced antibacterial properties and good photocatalysis Activity and porosity reduction effect

Inactive Publication Date: 2015-05-20
广州市阿波罗健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the composite material prepared by compounding nano-titanium dioxide with polyurethane has the disadvantages of easy aggregation of nano-titanium dioxide particles, poor dispersion, and weak antibacterial properties.

Method used

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  • Modified nano titanium dioxide polyurethane composite material and preparation technology thereof
  • Modified nano titanium dioxide polyurethane composite material and preparation technology thereof
  • Modified nano titanium dioxide polyurethane composite material and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Nano titanium dioxide and CdSe, WO 3 Composite, the mass ratio of nano titanium dioxide is 75%, CdSe, WO 3 The mass ratios are 10% and 15% respectively, and modified nano-titanium dioxide is prepared, and the modified nano-titanium dioxide and polyurethane are made into a masterbatch, and the masterbatch is added to polyurethane to prepare a modified nano-titanium dioxide-polyurethane composite material, keeping The mass content of the modified nano titanium dioxide in the polyurethane is 1.0%. The test shows that the modified nano-titanium dioxide polyurethane composite material is evenly distributed, and the antibacterial test results are shown in Table 1, while ordinary polyurethane materials have no antibacterial properties.

[0024] Table 1 Composite material sterilization test result in Example 1 of the present invention

[0025]

[0026]

Embodiment 2

[0028] Nano titanium dioxide and SnO 2 , CdS, ZnO compound, the mass ratio of nano titanium dioxide is 70%, SnO 2 , CdS, and ZnO mass ratios were 10%, 15% and 5%, respectively, to prepare modified nano-titanium dioxide, the modified nano-titanium dioxide and polyurethane were made into masterbatch, and the masterbatch was added to polyurethane to prepare modified Nano-titanium dioxide polyurethane composite material, keeping the mass content of modified nano-titanium dioxide in polyurethane as 1%, the performance test results of the prepared modified nano-titanium dioxide polyurethane composite material are as follows: density 1.06g / cm 3 , impact strength 12kJ / m 2 , Tensile strength 37.6MPa, Vicat softening point 88 ℃. The test shows that the modified nano-titanium dioxide polyurethane composite material is evenly distributed, and the antibacterial effect is shown in Table 2, while ordinary polyurethane materials have no antibacterial properties.

[0029] Table 2 Composite ...

Embodiment 3

[0032] Nano titanium dioxide and SnO 2 , CdS, ZnO compound, the mass ratio of nano titanium dioxide is 70%, SnO 2 , CdS, ZnO mass ratios were 10%, 10% and 10%, prepared modified nano-titanium dioxide, the modified nano-titanium dioxide and polyurethane to make a masterbatch, and the masterbatch was added to the polyurethane to prepare a modified The nano titanium dioxide polyurethane composite material keeps the mass content of the modified nano titanium dioxide in the polyurethane at 0.6%, and prepares the modified nano titanium dioxide polyurethane composite material. The test shows that the modified nano-titanium dioxide polyurethane composite material is evenly distributed, and the antibacterial effect is shown in Table 3, while ordinary polyurethane materials have no antibacterial properties.

[0033] Table 3 Composite material sterilization test result in Example 3 of the present invention

[0034]

[0035]

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Abstract

The embodiment of the invention discloses a modified nano titanium dioxide polyurethane composite material and a preparation technology thereof. The photolysis activity and antibacterial property of a polyurethane material can be effectively improved, and nano titanium dioxide particles in the material are not agglomerated easily and have good dispersity. The modified nano titanium dioxide polyurethane composite material is prepared by mixing modified nano titanium dioxide and polyurethane. The modified nano titanium dioxide polyurethane composite material disclosed by the embodiment of the invention has high photolysis activity and strong antibacterial property; and the modified nano titanium dioxide is not agglomerated easily in polyurethane and has good dispersity.

Description

technical field [0001] The invention relates to the field of materials, in particular to a modified nano titanium dioxide polyurethane composite material and a preparation process thereof. Background technique [0002] Polyurethane is the abbreviation of polyurethane, and its English name is polyurethane, which is a kind of polymer material. Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic", and is widely used in many fields because of its excellent performance. It has many advantages: low density, good dimensional stability, long storage life; excellent wear resistance, flex resistance; excellent shock absorption, anti-skid performance; good temperature resistance; good chemical resistance, etc. Wait. Various soft texture materials can be changed through different process formulas. [0003] At present, there are endless products of polyurethane materials on the market, especially the cylinder body materials used in bathtubs, which...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K3/22C08J3/22
Inventor 陈志雄
Owner 广州市阿波罗健康科技有限公司