Antistatic agent, antistatic polyamide composition, and preparation methods of antistatic agent and antistatic polyamide composition

A technology of polyamide composition and antistatic agent, which is used in the manufacture of conductive/antistatic filaments, single-component polyamide rayon, etc., can solve the problem of affecting the mechanical strength, heat resistance of molded products, increasing production costs, etc. problems, to achieve uniform antistatic performance, prolong service life, and reduce costs

Active Publication Date: 2016-07-27
CATHAY R&D CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, in order to obtain a good antistatic effect, it is also necessary to add a large amount of antistatic agent to the antistatic fiber. Generally, it is necessary to add more than 10wt% of the antistatic agent, which will also affect the mechanical strength and heat resistance of the molded product. It also increases production costs

Method used

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  • Antistatic agent, antistatic polyamide composition, and preparation methods of antistatic agent and antistatic polyamide composition
  • Antistatic agent, antistatic polyamide composition, and preparation methods of antistatic agent and antistatic polyamide composition

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preparation example Construction

[0039]

[0040] The preparation method of the antistatic agent comprises the following steps: uniformly mixing polyethylene glycol type antistatic agent solution and expanded graphite, stirring for 4-6 hours, separating solid and liquid, and drying to obtain the antistatic agent.

[0041] Wherein, the preparation method of polyethylene glycol type antistatic agent solution comprises the steps of: mixing polyethylene glycol type antistatic agent and organic solvent in a flask, heating to impel polyethylene glycol type antistatic agent to dissolve completely, that is Can.

[0042] The organic solvent is an organic solvent capable of dissolving the polyethylene glycol antistatic agent, preferably any one or a combination of both of methanol and ethanol, and the ethanol is preferably absolute ethanol.

[0043] The mass ratio of the polyethylene glycol antistatic agent mixed with the organic solvent is preferably (2-8):(30-40), preferably (3-5):(30-35), more preferably 4:30. The...

Embodiment 1

[0088] The preparation method of antistatic polyamide fiber comprises the steps:

[0089] (1) Add the polyethylene glycol-type antistatic agent PEG-OPE containing ether bonds into the flask, add an appropriate amount of absolute ethanol as a solvent, the mass ratio of PEG-OPE and absolute ethanol is 4:30, and heat in a water bath to 70°C, after the PEG-OPE is completely dissolved (that is, when the solution becomes transparent), add expanded graphite (EG), stir and react for 5 hours, evaporate the solution, put it in a vacuum oven for 24 hours, take it out and grind it into powder, and the anti-oxidant Static agent.

[0090] (2) 10 parts by weight of the antistatic agent obtained in step (1) and 56 parts by weight of polyamide were mixed in a high-speed mixer at a speed of 400 rpm for 5-10 minutes to obtain an antistatic polyamide 56 composition.

[0091] (3) Dry the antistatic bio-based polyamide 56 composition obtained in step (2) in a vacuum drying oven until the moisture ...

Embodiment 2

[0094] The preparation method of antistatic polyamide fiber comprises the steps:

[0095] (1) Add the polyethylene glycol-type antistatic agent PEG-OPE containing ether bonds into the flask, add an appropriate amount of absolute ethanol as a solvent, the mass ratio of PEG-OPE and absolute ethanol is 5:35, and heat in a water bath to 75°C, after PEG-OPE is completely dissolved (that is, when the solution becomes transparent), add high-conductivity expanded graphite (EG), stir and react for 6 hours, evaporate the solution, put it in a vacuum oven for 24 hours, take it out and grind it into powder, that is Get an antistatic agent.

[0096] (2) 4 parts by weight of the antistatic agent obtained in step (1) and 100 parts by weight of polyamide were mixed in a high-speed mixer at a speed of 600 rpm for 10 minutes to obtain an antistatic polyamide 56 composition.

[0097] (3) drying the antistatic bio-based polyamide 56 composition obtained in step (2) in a vacuum drying oven until ...

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Abstract

The invention discloses an antistatic agent, an antistatic polyamide composition, and preparation methods of the antistatic agent and the antistatic polyamide composition. The antistatic agent contains expanded graphite having the surface modified by a polyethylene glycol type antistatic agent, wherein the mass ratio of the expanded graphite to the polyethylene glycol type antistatic agent is 1 to (2-8). The preparation method of the antistatic agent comprises the steps: mixing a polyethylene glycol type antistatic agent solution and the expanded graphite evenly, stirring for 4-6 h, carrying out solid-liquid separation, and drying. The antistatic polyamide composition contains the antistatic agent and polyamide, wherein the mass ratio of the antistatic agent to polyamide is (4-10) to (56-100). The preparation method of the antistatic polyamide composition comprises the steps of drying the antistatic polyamide composition, carrying out melt mixing, extruding and spinning. The antistatic polyamide composition prepared by the preparation method not only has permanent antistatic property, but also has excellent mechanical properties and processability.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an antistatic agent, an antistatic polyamide composition, an antistatic polyamide, an antistatic polyamide fiber and a preparation method thereof. Background technique [0002] With the strengthening of people's health awareness, the harm of static electricity to the human body has gradually been paid attention to. The antistatic properties of fiber products have also attracted more and more people's attention. Among them, the antistatic properties of products such as geotextiles, carpets, wallpapers, and precision instrument covering cloths are particularly important. Taking polyamide fiber as an example, although it has good wear resistance, high breaking strength, impact resistance, resilience and fatigue resistance, etc., it is easy to generate static electricity due to friction and induction, and the generated static electricity is not used during use. It is easy to leak an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K7/24C08L77/06D01F6/90D01F1/09
Inventor 胡定军郑毅秦兵兵刘驰
Owner CATHAY R&D CENT CO LTD
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