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A kind of masterbatch composition and processing method thereof
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A processing method and a technology of the composition, which are applied to the master batch composition and the processing field thereof, can solve the problems of poor dispersibility of carbon nanotubes, complicated methods, etc., and achieve easy mass production, simple process, and high low-temperature impact resistance. Effect
Active Publication Date: 2021-04-06
HANGZHOU XINGLU TECH CO LTD +1
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Problems solved by technology
The physical blending method is simple and easy to process composite materials, and is easy to mass-produce, but the dispersion of carbon nanotubes or graphene in polyolefins is not good
The in-situ polymerization method is to load the olefin polymerization catalyst on carbon nanotubes or graphene, and prepare composite materials by in-situ polymerization. The carbon nanotubes or graphene in the composite materials prepared by this method are uniformly dispersed, but the method is too complicated
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Embodiment 1
[0019] The masterbatch composition includes the following raw materials in parts by mass: 99 parts of hyperbranched polyethylene and 1 part of graphene.
[0020] Among them, the number of highly branched polyethylene used is PER-5.
[0021] The processing method of this masterbatch composition specifically comprises the following steps:
[0022] (1) Add each raw material component into the mixer according to the stated ratio, and mix for 15 minutes at a speed of 30 rpm;
[0023] (2) Put the mixed raw materials into a twin-screw extrusion granulator, control the temperature at 160° C., and carry out extrusiongranulation to obtain a granular masterbatch composition.
Embodiment 2
[0025] The masterbatch composition includes the following raw materials in parts by mass: 95 parts of hyperbranched polyethylene and 5 parts of graphene.
[0026] Among them, the number of highly branched polyethylene used is PER-2.
[0027] The processing method of this masterbatch composition specifically comprises the following steps:
[0028] (1) Add each raw material component into the mixer according to the stated ratio, and mix for 3 minutes at a speed of 50 rpm;
[0029] (2) Put the mixed raw materials into a twin-screw extrusion granulator, control the temperature at 90° C., and carry out extrusion granulation to obtain a granular masterbatch composition.
Embodiment 3
[0031] The masterbatch composition includes the following raw materials in parts by mass: 90 parts of highly branched polyethylene and 10 parts of carbon nanotubes.
[0032] Among them, the number of highly branched polyethylene used is PER-3.
[0033] The processing method of this masterbatch composition specifically comprises the following steps:
[0034] (1) Add each raw material component into the mixer according to the stated ratio, and mix for 8 minutes at a speed of 40 rpm;
[0035] (2) Put the mixed raw materials into a twin-screw extrusion granulator, control the temperature at 110° C., and perform extrusion granulation to obtain a granular masterbatch composition.
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Abstract
The invention relates to a masterbatch composition containing branched polyethylene and a processing method thereof, which comprises: 70-99 parts of highly branched polyethylene, 1-30 parts of carbon nanotubes or graphene in 100 parts by weight The degree of branching of highly branched polyethylene is 70-130 branches / 1000 carbons, the weight-average molecular weight is 66,000-436,000, and the Mooney viscosity ML (1+4) is 6-93 at 125°C. The beneficial effect is that the highly branched polyethylene is an ethylene homopolymer, a high-performance polyolefin product, which is rubber-elastic at room temperature, and has the characteristics of low density, large bending, high impact resistance at low temperature, and easy processing.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a masterbatch composition and a processing method thereof. Background technique [0002] With the continuous development of science and technology, people have higher and higher requirements for the application performance of polymer materials. It is required that the polymer material has excellent toughness and high hardness; it is hoped that the polymer can withstand high temperature and be easy to form and process; it not only has outstanding performance, but also has low price. Based on these comprehensive performance requirements, a single polymer is usually difficult to meet. Therefore, the composite modification of polymers has attracted more and more attention. [0003] The emergence of carbon nanotubes and graphene provides new options for polymer modification. Compared with traditional fillers, carbon nanotubes have the advantages of extremely l...
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Application Information
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