High tenacity one-dimensional titanium dioxide nanowire modified PP material and preparation method thereof

A technology of titanium dioxide and nanowires, which is applied in the field of high-toughness one-dimensional titanium dioxide nanowire modified PP materials and its preparation, and can solve the problems of limited application range, poor impact resistance, and poor impact resistance.

Active Publication Date: 2019-05-17
芜湖万隆新材料有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

However, PP itself has poor impact resistance, especially low temperature impact resistance, which greatly limits its application range.

Method used

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Examples

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Effect test

preparation example Construction

[0029] The one-dimensional TiO 2 The preparation method of nanowires includes: 2g of nanoparticles (with a particle size of 10nm to 200nm) reacting with 10M NaOH solution at 200°C for 6 to 24 hours, the filling degree of the reactor is 75%, and the nanoparticles grow in orientation to form one-dimensional nanowires. Wire sodium titanate, proton exchanged with 1M nitric acid to obtain titanic acid, centrifuged, dried overnight at 80°C in vacuum, and the obtained one-dimensional titanate nanowires were further heated at 200°C for 6-24 hours to obtain one-dimensional TiO 2 Nanowires. By adjusting the particle size and reaction time of the nanoparticles, the diameter and length of the obtained nanowires can be controlled.

[0030] The modified one-dimensional TiO 2 The diameter of the nanowire is 10nm-200nm, preferably 100nm, and the length is 50nm-5um, preferably 2um. The present invention limits the modified one-dimensional TiO 2 The diameter and length of the nanowire, when...

Embodiment 1

[0041] 2g of nanoparticles (50nm in diameter) and 10M NaOH solution are hydrothermally treated at 200°C for 12 hours. The filling degree of the reactor is 75%. Acid, after centrifugation, dried under vacuum at 80°C overnight. The obtained one-dimensional titanate nanowires were further heated at 200°C for 24 hours, and the filling degree of the reactor was 75%, and the one-dimensional TiO 2 Nanowires.

[0042] One-dimensional TiO 2 Nanowires were added to a mixed solution of ethanol and water (ethanol:water=9:1, v%:v%), then ultrasonically dispersed for 1h, then surface modifier KH560 was added, stirred in a water bath at 80°C for 3h, centrifuged, and solid-liquid separation , dried at 120°C for 6 hours, and the dried product was milled with 0.2-1 cm zirconium beads for 6 hours to obtain a modified one-dimensional TiO 2 nanowire; the added amount of the surface modifier is one-dimensional TiO 2 5% of nanowires;

[0043] The PP material and the modified one-dimensional TiO...

Embodiment 2

[0047] 2g of nanoparticles (50nm in diameter) and 10M NaOH solution are hydrothermally treated at 200°C for 12 hours. The filling degree of the reactor is 75%. Acid, after centrifugation, dried under vacuum at 80°C overnight. The obtained one-dimensional titanate nanowires were further heated at 200°C for 24 hours, and the filling degree of the reactor was 75%, and the one-dimensional TiO 2 Nanowires.

[0048] One-dimensional TiO 2 Nanowires were added to a mixed solution of ethanol and water (ethanol:water=9:1, v%:v%), then ultrasonically dispersed for 1h, then surface modifier KH560 was added, stirred in a water bath at 80°C for 4h, centrifuged, and solid-liquid separation , dried at 120°C for 6 hours, and the dried product was milled with 0.2-1 cm zirconium beads for 8 hours to obtain the modified one-dimensional TiO 2 nanowire; the added amount of the surface modifier is one-dimensional TiO 2 5% of nanowires;

[0049] The PP material and the modified one-dimensional T...

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Abstract

The invention provides a high tenacity one-dimensional titanium dioxide nanowire modified PP material and a preparation method thereof, and belongs to the field of high polymer materials. The PP material is prepared from the following components in parts by weight: 50-80 parts of polypropylene, 5-40 parts of modified one-dimensional TiO2 nanowire, 1-2 parts of an antioxidant, 1-2 parts of a lightstabilizer and 5-10 parts of a fire retardant; the modified one-dimensional TiO2 nanowire is obtained by adding one-dimensional TiO2 nanowire into a surfactant for surface modification, the diameter of the modified one-dimensional TiO2 nanowire is 10-200nm, and the length is 50nm-5micron. The invention further provides the preparation method of the high tenacity one-dimensional titanium dioxide nanowire modified PP material. The material has the high tenacity.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and has the design of a high-toughness one-dimensional titanium dioxide nanowire modified PP material and a preparation method thereof. Background technique [0002] As one of the five general-purpose plastics, polypropylene (PP) will continue to expand its product performance range and market. However, the poor impact resistance of PP itself, especially the poor impact resistance at low temperature, greatly limits its application range. Among the existing PP modification methods, the use of nucleating agents to change the crystal morphology of PP, thereby improving the mechanical properties and processing properties of PP has become one of the most promising and important means to optimize PP. Titanium dioxide (TiO 2 ) is an excellent plastic additive. Adding it to polymers can improve the toughness, strength, modulus, heat resistance, and processing flow properties of polymers, and has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K9/06C08K9/00C08K7/08C08K5/134C08K13/06
Inventor 周光远李璐姜国伟
Owner 芜湖万隆新材料有限公司
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