Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high-toughness two-dimensional ultra-thin titanium dioxide modified pp nanocomposite material and preparation method thereof

A nanocomposite material, titanium dioxide technology, applied in the field of two-dimensional ultra-thin TiO2 modified PP nanocomposite material and its preparation, can solve problems such as hardening, easy aging, and long-term use limitation

Active Publication Date: 2021-04-30
芜湖万隆新材料有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PP is developing very rapidly at home and abroad, but due to the lack of toughness of PP itself, and it is very easy to age under the action of ultraviolet rays and oxygen, the product will change color, harden and crack, which greatly limits the long-term use of its products under outdoor conditions. , which limits the expansion of its application range, so it is necessary to modify PP to improve the physical and mechanical properties and expand the application field

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The invention provides a method for preparing a high-toughness two-dimensional ultra-thin titanium dioxide modified PP nanocomposite material, comprising

[0034] Step 1: Preparation of two-dimensional ultrathin nano-TiO 2

[0035] Under the protection of nitrogen, add titanium tetrachloride to ethylene glycol, heat to reflux, and then add water to react. After the reaction, cool down to room temperature, centrifuge and wash to obtain two-dimensional ultra-thin nano-TiO 2 ; The reaction time is preferably 30min-5h; more preferably 2-4h, the volume ratio of ethylene glycol and titanium tetrachloride is preferably (5-100): 1, more preferably (5-6) : 1, the volume ratio of titanium tetrachloride to water is preferably (1-4): 1, more preferably (1-1.25): 1; the ethylene glycol is used as a directing agent;

[0036] Step 2: Modified two-dimensional ultrathin nano-TiO 2

[0037] Surfactant and two-dimensional ultrathin nano-TiO 2 reaction to obtain modified two-dimension...

Embodiment 1

[0044] Under the protection of nitrogen, add 0.5L titanium tetrachloride to 3.0L ethylene glycol, heat to reflux, add 0.5L water to react with titanium tetrachloride, react for 2.0h, cool down to room temperature, and perform centrifugation and washing. Two-dimensional ultrathin nano-TiO 2 .

[0045] two-dimensional ultrathin nano-TiO 2 Reversely disperse in a mixed solution of water and ethanol (the volume ratio of water and ethanol is 9:1), super-disperse for 50min, then add surfactant KH550, react at 70°C for 4h, after cooling, centrifuge at 5000r / min, and dry at 100°C Overnight, the addition of the surfactant is two-dimensional ultra-thin nano-TiO 2 2.5% of the mass; modified two-dimensional ultrathin nano-TiO 2 -M (thickness 20nm, aspect ratio 15).

[0046] The PP material and the modified two-dimensional ultrathin nano-TiO 2 -M drying, the drying temperature is 100°C, and the drying time is 6 hours, which can improve the processing performance of the material; then ...

Embodiment 2

[0050] Under the protection of nitrogen, add 0.5L titanium tetrachloride to 3.0L ethylene glycol, heat to reflux, add 0.5L water to react with titanium tetrachloride, react for 2.0h, cool down to room temperature, and perform centrifugation and washing. Two-dimensional ultrathin nano-TiO 2 .

[0051] two-dimensional ultrathin nano-TiO 2 Reversely disperse in a mixed solution of water and ethanol (the volume ratio of water and ethanol is 9:1), super-disperse for 50min, then add surfactant KH550, react at 70°C for 4h, after cooling, centrifuge at 5000r / min, and dry at 100°C Overnight, the addition of the surfactant is two-dimensional ultra-thin nano-TiO 2 2.5% of the mass; modified two-dimensional ultrathin nano-TiO 2 -M (thickness 20nm, aspect ratio 15).

[0052] The PP material and the modified two-dimensional ultrathin nano-TiO 2 -M drying, the drying temperature is 100°C, and the drying time is 6 hours, which can improve the processing performance of the material; then ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
tensile strengthaaaaaaaaaa
bending strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a high-toughness two-dimensional ultra-thin titanium dioxide modified PP nanocomposite material and a preparation method thereof, belonging to the field of polymer materials. The composite material is composed of the following components in parts by weight: 50-90 parts of polypropylene, modified two-dimensional ultra-thin nano-TiO 2 5-40 parts, 0.5-2 parts of light stabilizer, 0.5-2 parts of antioxidant, 2-10 parts of flame retardant, 1-2 parts of ultraviolet absorber; the modified two-dimensional ultra-thin nano-TiO 2 two-dimensional ultra-thin nano-TiO 2 Obtained after adding a surfactant to carry out surface modification; the modified two-dimensional ultra-thin nano-TiO 2 The thickness is less than 50nm, and the aspect ratio is greater than 10. The invention also provides a preparation method of a high-toughness two-dimensional ultra-thin titanium dioxide modified PP nanocomposite material. The composite material of the present invention has high toughness.

Description

technical field [0001] The invention belongs to the field of polymer materials, and has the advantages of providing a two-dimensional ultra-thin TiO with high toughness 2 Modified PP nanocomposite material and preparation method thereof. Background technique [0002] PP is the English abbreviation of polypropylene. PP occupies an important position in the production of synthetic resins. PP was first synthesized in the laboratory by Italian Professor Natta in 1954, and industrialized by Italian Montecatinal Company in 1957. In 1970, the 5,000-ton / year plant of Lanzhou Chemical Industry Company was put into operation, marking the beginning of my country's PP industrial production. PP is developing very rapidly at home and abroad, but due to the lack of toughness of PP itself, and it is very easy to age under the action of ultraviolet rays and oxygen, the product will change color, harden and crack, which greatly limits the long-term use of its products under outdoor condition...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K9/06C08K3/22
Inventor 周光远李璐姜国伟
Owner 芜湖万隆新材料有限公司