Sepiolite fiber and multiwalled carbon nanotube synergetically-enhanced polypropylene and preparation method thereof
A technology of multi-wall carbon nanotubes and sepiolite fibers, applied in the field of polypropylene production, to achieve the effects of improving activity, improving strength and wear resistance, good strength and rigidity
Inactive Publication Date: 2015-10-21
合肥蓝科新材料有限公司
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Problems solved by technology
However, there are still polar differences between carbon nanotubes and polypropylene, and it is necessary to improve the process to further improve the performance of carbon nanotube-reinforced polypropylene
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] A polypropylene resin synergistically reinforced by sepiolite fibers and multi-walled carbon nanotubes, made of the following raw materials in parts by weight (kg): liquid propylene 370, multi-walled carbon nanotubes supported Ti-Zr catalyst 3, liquid ethylene 110, Triethylaluminum 8, carbon airgel 0.2, sepiolite fiber 5.5, diphenyldimethoxysilane 5.9, n-heptane 55, hydrogen gas, ammonium hexafluorosilicate 0.1, 1-octene 18, di Ferrocene 0.5, water 10.
[0015] The sepiolite fiber and multi-wall carbon nanotube synergistically reinforced polypropylene resin is characterized in that: the multi-wall carbon nanotube-supported Ti-Zr catalyst contains 5% by mass of Ti and 2% of Zr.
[0016] The production method of described sepiolite fiber and multi-walled carbon nanotube synergistically reinforced polypropylene resin is characterized in that:
[0017] (1) Add ammonium hexafluorosilicate to water, then add multi-walled carbon nanotube-supported Ti-Zr catalyst, heat to 65°C...
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Abstract
Provided is sepiolite fiber and multiwalled carbon nanotube synergetically-enhanced polypropylene. The sepiolite fiber and multiwalled carbon nanotube synergetically-enhanced polypropylene is prepared from, by weight, 350-380 parts of liquid propylene, 2.5-3.5 parts of multiwalled carbon nanotube load Ti-Zr catalyst, 100-120 parts of liquid ethylene, seven to nine parts of aluminum ethyl, 0.2-0.3 part of carbon aerogel, five to six parts of sepiolite fibers, 5.4-6.2 parts of diphenyldimethoxysilane, 50-60 parts of n-heptane, a proper amount of hydrogen, 0.1-0.2 part of ammonium hexafluorosilicate, 15-20 parts of 1-octylene, 0.4-0.6 part of ferrocene and eight to 12 parts of water. The multiwalled carbon nanotube load Ti-Zr catalyst is modified, the ferrocene and carbon aerogel are used in cooperation, the activity of the catalyst is improved, polarity differences are reduced, and the binding force of multiwalled carbon nanotubes and polymer is increased. The sepiolite fibers are adopted, so that the strength and abrasion resistance of polypropylene are improved.
Description
technical field [0001] The invention relates to the technical field of polypropylene production, in particular to a polypropylene resin synergistically reinforced by sepiolite fibers and multi-walled carbon nanotubes and a preparation method thereof. Background technique [0002] The introduction of nanoparticles (such as montmorillonite, carbon nanotubes, and graphene oxide) into polyolefins has become an important way for the modification and high performance of polyolefins. The inorganic rigid particles dispersed in the polyolefin matrix at the nanometer scale can significantly improve or increase the mechanical properties, thermal properties and resistance properties of polyolefins with a small filling amount (usually less than 5% (w)), and have Functional nanoparticles such as extremely strong electrical and thermal conductivity (such as reduced graphene oxide, etc.) can also endow polyolefin with certain electrical and thermal conductivity. Therefore, the further impr...
Claims
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IPC IPC(8): C08F210/16C08F210/06C08F210/14C08F4/02C08K7/24C08K7/10
Inventor 吴春云
Owner 合肥蓝科新材料有限公司