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A kind of nylon nano-copper composite material and preparation method thereof

A composite material and nano-copper technology, which is applied in the manufacture of rayon, single-component polyamide rayon, textiles and papermaking, etc., can solve the problems of decreased strength of nylon-copper composites, difficult material processing, and increased material costs. Achieve the effect of reduced material cost, good biofouling resistance and long service life

Active Publication Date: 2021-01-26
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding a large amount of copper powder to nylon, on the one hand, increases the material cost. On the other hand, due to the difference in properties between metal copper and nylon materials, the strength and toughness of the nylon-copper composite material decrease. In order to improve the mechanical properties of the material, the composite material In addition, a reinforcing agent is added, which makes the material processing difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of nylon nano-copper composite material, comprising the following steps:

[0027] 1) Put nylon 6 powder and pure copper powder with a particle size of 30nm into a drying oven and dry them separately at a temperature of 60°C to obtain dried nylon 6 powder and dried pure copper powder;

[0028] 2) Put the dried nylon 6 powder, dried pure copper powder, silane coupling agent and antioxidant 1010 into a high-speed mixer and mix them uniformly before taking them out to obtain a composite, wherein the dried pure copper powder is relatively The mass fraction of the compound is 3%, the mass fraction of the silane coupling agent relative to the compound is 1%, the mass fraction of the antioxidant 1010 relative to the compound is 1%, and nylon 6 powder is the balance;

[0029] 3) Add the compound into a twin-screw extruder, extrude after melt blending, water cooling, and granulate with a pelletizer, and the extrusion temperature of the extruder is 160°C;

[...

Embodiment 2

[0033] A preparation method of nylon nano-copper composite material, comprising the following steps:

[0034] 1) Put nylon 6 powder and pure copper powder with a particle size of 150nm into a drying oven and dry them separately at a temperature of 150°C to obtain dried nylon 6 powder and dried pure copper powder;

[0035] 2) Put the dried nylon 6 powder, dried pure copper powder, silane coupling agent and antioxidant 168 into a high-speed mixer and mix them uniformly before taking them out to obtain a composite, wherein the dried pure copper powder is relatively The mass fraction of the compound is 0.5%, the mass fraction of the silane coupling agent relative to the compound is 0.1%, the mass fraction of the antioxidant 168 relative to the compound is 0.1%, and nylon 6 powder is the balance;

[0036] 3) Add the obtained compound into a twin-screw extruder, extrude after melt blending, water cooling, and granulate with a pelletizer, and the extrusion temperature of the extruder...

Embodiment 3

[0040] A preparation method of nylon nano-copper composite material, comprising the following steps:

[0041] 1) Put nylon 66 powder and pure copper powder with a particle size of 50nm into a drying oven and dry them separately at a temperature of 100°C to obtain dried nylon 66 powder and dried pure copper powder;

[0042] 2) Put the dried nylon 66 powder, dried pure copper powder, silane coupling agent and antioxidant 168 into a high-speed mixer and mix them uniformly to obtain a composite, wherein the dried pure copper powder is relatively The mass fraction of the compound is 4.95%, the mass fraction of the silane coupling agent relative to the compound is 1%, the mass fraction of the antioxidant 168 relative to the compound is 0.5%, and nylon 66 powder is the balance;

[0043] 3) Add the compound into a twin-screw extruder, extrude after melt blending, water cooling, and granulate with a pelletizer, and the extrusion temperature of the extruder is 200°C;

[0044] 4) Dry th...

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Abstract

The invention provides a nylon nano-copper composite and a preparation method thereof. The preparation method includes the following steps that 1), nylon powder and nano-copper powder are put in a drying box to be dried respectively, and dried nylon powder and dried nano-copper powder are obtained; 2), the dried nylon powder, the dried nano-copper powder, a coupling agent and antioxidant are put in a high-speed mixer to be mixed to be uniform, the material is taken out, and a composite is obtained; 3), the composite is added into an extruder, the composite is extruded after melt blending, andthe composite is water-cooled and pelletized by a pelletizer; 4), pelletized particles are dried, and the particles are subjected to injection molding through an injection molding machine. The contentof the copper component used in the composite prepared through the preparation method is low, the cost of the composite is reduced, and as the copper component is mixed in a nano-scale, the copper component is evenly distributed and easy to dissolve out, and it can be guaranteed that the minimum effusion concentration of antifouling organisms is achieved. Nylon composite filaments prepared from the composite have good biofouling resistance and mechanical performance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a nylon nano-copper composite material capable of preventing marine organisms from fouling and a preparation method thereof. Background technique [0002] Nylon material is a commonly used material in marine engineering. For example, in traditional seafood farming, nylon material is generally used for cage nets. Nylon cages have poor biofouling resistance. The clothes will be covered with marine epiphytes, the most important groups of which are algae, hydra, external anal animals, snails, bivalves, barnacles and sea squirts. The attachment of a large number of organisms not only affects the smooth flow of water in the fishnet cage, reduces the activity space of the cultured products, but also affects the growth and taste of the cultured products, and seriously causes the disease of the farmed fish, so the farmers need frequent manual maintenance ,Time-consu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08K3/08C08K5/54C08K5/134C08K5/526D01F6/90D01F1/10
CPCC08K3/08C08K5/1345C08K5/526C08K5/54C08K2003/085C08K2201/003C08K2201/011D01F1/10D01F6/90C08L77/02C08L77/06
Inventor 刘新宽刘平陈小红李伟马凤仓何代华张柯
Owner UNIV OF SHANGHAI FOR SCI & TECH
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