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Macromolecule material for automatic recovery fuse and its preparation method

An automatic recovery and fuse technology, applied in emergency protection devices, electrical components, circuits, etc., can solve the problems of unreported and unintroduced positive resistance temperature coefficient thermistor repeated use stability experiment data, etc.

Inactive Publication Date: 2009-07-01
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two patents did not introduce the experimental data of the repeated use stability of the temperature-sensitive element with positive resistance temperature coefficient, that is, the change in performance caused by the change in resistance, and did not report the measures taken to improve this performance.

Method used

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  • Macromolecule material for automatic recovery fuse and its preparation method
  • Macromolecule material for automatic recovery fuse and its preparation method
  • Macromolecule material for automatic recovery fuse and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Taking the production of product 100g of the present invention as an example, the raw materials used and the weight ratio thereof are:

[0052] Semi-crystalline high-density polyethylene grafted with maleic anhydride 16g

[0053] Polyvinylidene fluoride 5g

[0054] Antioxidant 1010 2g

[0055] Titanium carbonitride 75g

[0056] NZN-105 1g

[0057] Triallyl cyanurate 1g

[0058] The graft ratio of the above-mentioned maleic anhydride-grafted semi-crystalline high-density polyethylene is 0.5-3% by weight.

[0059] Its preparation method is as follows:

[0060] 1. Conductive filler pretreatment

[0061] Take coupling agent NZN-105 and isopropanol and mix them in a beaker at a weight ratio of 1:25 to form a coupling agent solution, stir evenly with a magnetic stirrer, then weigh titanium carbonitride according to the weight percentage of this example and add it to Stir and disperse in a high-speed mixer, place for 12 to 24 hours, put into a vacuum drying oven at 45° ...

Embodiment 2

[0074] Taking the production of product 100g of the present invention as an example, the raw materials used and the weight ratio thereof are:

[0075] Semi-crystalline high-density polyethylene grafted with maleic anhydride 10g

[0076] Polyvinylidene fluoride 3g

[0077] Antioxidant 1010 0.5g

[0078] Titanium carbonitride 85g

[0079] NZN-105 1g

[0080] Triallyl cyanurate 0.5g

[0081] In the preparation method, in the annealing treatment process step, the sample preparation is annealed and heat-treated at 110° C. for 0.5 hours in a high-temperature air aging box. In the radiation treatment process step, the prepared self-resetting fuse sample is cross-linked by electron accelerator radiation, and the radiation dose is 20Mrad. Other processing steps are identical with embodiment 1.

Embodiment 3

[0083] Taking the production of product 100g of the present invention as an example, the raw materials used and the weight ratio thereof are:

[0084] Semi-crystalline high-density polyethylene grafted with maleic anhydride 20g

[0085] PVDF 9g

[0086] Antioxidant 1010 2g

[0087] Titanium carbonitride 65g

[0088] NZN-105 2g

[0089] Triallyl cyanurate 2g

[0090] In the preparation method, in the annealing treatment process step, the sample preparation is annealed and heat-treated at 105° C. for 1 hour in a high-temperature air aging box. In the radiation treatment process step, the prepared self-resetting fuse sample is cross-linked by electron accelerator radiation, and the radiation dose is 50 Mrad. Other processing steps are identical with embodiment 1.

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Abstract

A polymer self-recovery fuse material, which is composed of 10-20% of polymer matrix 1, 3-10% of polymer matrix 2, 0.5-2% of antioxidant 1010, and 65-85% of conductive filler , titanate coupling agent or aluminum-titanium composite coupling agent 0.5-5%, cross-linking sensitizer 0.5-5% by weight of raw materials. The preparation method includes: pretreatment of conductive filler, plasticizing and dispersing, preparing sheet, molding and pressing sample, annealing treatment, radiation treatment and inspection. The material for the polymer automatic recovery fuse of the present invention has the advantages of repeated use, durability, no need for maintenance and replacement, good resistance stability and the like. The fuse prepared by the invention can be used in post and telecommunications, computers, automobile and motorcycle electronics, mobile phone (lithium) batteries, communication satellites, lightning protection devices, launch vehicles, airplanes, tanks, medical instruments, grain warehouses, fire alarms, household appliances, etc. Overheating, overcurrent and overvoltage protection components for electronic circuits.

Description

technical field [0001] The invention belongs to the technical field of electronic information functional materials, and in particular relates to a material for preparing a polymer automatic recovery fuse and a preparation method thereof. Background technique [0002] Polymer self-resetting intelligent switch material is a positive temperature coefficient overcurrent protection element made of a new type of special electronic information functional material, which is widely used in post and telecommunications, computers, automobile and motorcycle electronics, mobile phone (lithium) batteries, communication satellites, lightning protection Devices, launch vehicles, aircraft, tanks, medical instruments, grain warehouses, fire alarms, household appliances and various other electronic circuit overheating, overcurrent and overvoltage protection are very active research topics in various countries in the world today. [0003] Compared with the traditional fuse, the polymer self-res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/34C08L51/06H01H85/06
Inventor 罗延龄
Owner SHAANXI NORMAL UNIV