A kind of preparation method of nylon 6 nanofiber reinforced and toughened polyoxymethylene

A nanofiber, reinforcement and toughening technology, which is applied in the preparation field of nylon 6 nanofiber reinforcement and toughening polyoxymethylene, can solve the problem of unsatisfactory compatibility between resin and glass fiber, and achieve the effect of avoiding depolymerization

Active Publication Date: 2015-11-18
汕头市金明塑料无结网制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high crystallinity of POM, the compatibility of resin and glass fiber is still not satisfactory.

Method used

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  • A kind of preparation method of nylon 6 nanofiber reinforced and toughened polyoxymethylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of nylon 6 nanofibers by electrospinning

[0023] Prepare a nylon 6 formic acid solution with a concentration of 14%, place it in the spinning bath, adjust the electrode distance to 150mm, turn on the high voltage to 60kv, and collect nylon 6 nanofibers on the receiving substrate.

[0024] 2. Preparation of nylon 6 nanofiber reinforced and toughened polyoxymethylene

[0025] Mix 8 parts of nylon 6 nanofibers with 92 parts of polyoxymethylene evenly, put them into a twin-screw extruder, and melt and granulate.

[0026] The processing technology is as follows: twin-screw extruder, the temperature in the first zone is 160-170°C, the temperature in the second zone is 165-175°C, the temperature in the third zone is 170-180°C, the temperature in the fourth zone is 175-185°C, the head is 180-195°C, the screw speed 250-350rpm, residence time 3-5min, pressure 12-18MPa.

Embodiment 2

[0028] With embodiment 1, difference is:

[0029] Step (1) The concentration of nylon 6 formic acid solution is 12%.

Embodiment 3

[0031] With embodiment 1, difference is:

[0032] In step (2), 15 parts of nylon 6 nanofibers and 85 parts of polyoxymethylene are melted and granulated.

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Abstract

The invention belongs to the field of high polymer materials, and particularly relates to a preparation method of nylon 6 nano fiber-reinforced / toughened polyformaldehyde, which comprises the following steps: preparing nylon 6 nano fiber by electrostatic spinning; and preparing the nylon 6 nano fiber-reinforced / toughened polyformaldehyde.Since the nylon 6 nano fiber has large specific area, the compatibility is enhanced, the hydrogen bond interaction between the amido group in the nylon 6 nano fiber and the ether bond in the polyformaldehyde is greatly enhanced, and the tensile strength and bending strength are obviously improved; the nylon has a heterogeneous nucleation action on the polyformaldehyde, and the notch impact strength of the blend system is obviously increased as the nylon content increases; and the introduced nylon 6 nano fiber can lower the melt blending temperature, so that the temperature does not need to achieve the melting point of the nylon 6, thereby avoiding the depolymerization of the polyformaldehyde.

Description

technical field [0001] The invention belongs to the field of polymer materials, and more specifically relates to a preparation method of nylon 6 nanofiber reinforced and toughened polyoxymethylene. Background technique [0002] Polyoxymethylene (POM) is an engineering plastic with excellent comprehensive properties. It has extremely high strength and rigidity, good corrosion resistance, oil resistance, chemical resistance, low water absorption, wear resistance and self-lubrication, creep resistance and Outstanding fatigue resistance (fatigue strength up to 27.4×10 7 ), is one of the resin varieties whose strength is closer to that of metal in all plastics. Since the first industrialization of DuPont Company in the United States in 1959, polyoxymethylene is often used to replace non-ferrous metals and alloys because of its cheap raw materials, easy processing and molding, especially its unique properties, and is widely used in automobiles, electronic appliances Industry, ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L59/00C08L77/02D01F6/60B29C47/92B29B9/06B29C48/92
CPCB29C47/92B29B7/46B29B7/72B29B7/90B29B9/06B29B9/14B29B2009/125B29C47/0011B29C47/827B29C2947/92514B29C2947/92561B29C2947/9259B29C2947/92704B29C2947/92885B29C2947/92895B29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92514B29C2948/92561B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 张成如
Owner 汕头市金明塑料无结网制品有限公司
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