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High-low-temperature resisting anti-ultraviolet nylon cable tie and preparation method thereof

A technology of anti-ultraviolet and nylon cable ties, which is applied in the direction of belts, other household appliances, flexible and slender components, etc., can solve the problems of loss of binding function, regular and irregular maintenance, failure and fracture of cable ties, etc., and achieve high resistance Low-temperature anti-ultraviolet performance is improved, the preparation process is simple, and the effect of continuous replacement is reduced

Inactive Publication Date: 2012-11-14
PINGDINGSHAN YASU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High and low temperature resistant and anti-ultraviolet nylon cable ties are new applications brought about by the widespread use of nylon cable ties and abnormal climate in recent years. Usually nylon cable ties have good performance in acid resistance, alkali resistance, insulation, etc., but in- Below 25°C, nylon usually exhibits cold brittleness, loses 70% of its toughness, and even breaks when it is folded at -45°C, losing its binding function; There is no way to use nylon cable ties for construction, which makes the original simple and easy method unusable. This is the low temperature limitation of ordinary nylon cable ties; outdoors, nylon cable ties are also widely used, such as outdoor advertising and building scaffolding. , agricultural greenhouses and other outdoor fields, but with the high temperature and exposure to the sun's ultraviolet light, these cable ties will soon age, become brittle, and fall off, resulting in regular and irregular maintenance. It is convenient to use and also brings frequent replacement. Trouble, this is the limitation of ordinary nylon cable ties in terms of UV resistance; with the development of automobiles in recent years, nylon cable ties for vehicles have become more and more widespread. In recent years, accidents caused by wire harness friction have continued to increase. It is the wiring harness around the engine, which is constantly subjected to alternating cold and heat in cold regions, which can easily cause the cable tie to fail and break, resulting in the friction between the skin of the wiring harness and the metal parts to leak the wires, causing accidents caused by electric ignition

Method used

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  • High-low-temperature resisting anti-ultraviolet nylon cable tie and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare high and low temperature resistant and UV resistant nylon cable ties as follows:

[0028] Preparation of raw material mixture: put 9.6kg of polyhexamethylene adipamide weighed together with 0.05kg of processing modifier, 0.3kg of cold resistance agent, and 0.04kg of compatibilizer into the high mixer and add 8ml of liquid paraffin at 300-7500 rpm Pre-mix for 10 minutes at a rotational speed per minute, then add 0.01 kg of anti-ultraviolet agent and stir for 15 minutes.

[0029] Melt extrusion granulation: Add the above mixture into twin-screw extrusion and melt extrude. The temperatures of screw feeding zone, conveying zone, plasticizing zone and mouth film are respectively 260°C, 265°C, 270°C and 275°C, and the screw speed is 50-600 rpm, the screw temperature is 180-310 °C, the material stays in the extruder for 1-15 minutes, then naturally cools in the cooling tank, and then pelletizes, the obtained composite particles are at 80- Dry in a drying oven at 130°C...

Embodiment 2

[0031] Prepare high and low temperature resistant and UV resistant nylon cable ties as follows:

[0032] Preparation of raw material mixture: put 9.44kg of polyhexamethylene adipamide, 0.08kg of processing modifier, 0.4kg of cold resistance agent, and 0.06kg of compatibilizer into the high mixer and add 8ml of liquid paraffin at 300-7500 rpm Pre-mix for 10 minutes at a rotational speed per minute, then add 0.02 kg of anti-ultraviolet agent and stir for 15 minutes.

[0033] Melt extrusion granulation: Add the above mixture into the twin-screw extrusion to melt and extrude the strands. The temperatures of the screw feeding zone, conveying zone, plasticizing zone and mouth film are respectively 260 °C, 265 °C, 270 °C and 275 °C. The rotation speed is 50-600 rpm, the screw temperature is 180-310°C, the time for the material to stay in the extruder is 1-15 minutes, and then it is naturally cooled in the cooling tank, and then pelletized. Dry in a drying oven at 80-130°C for 6-12 h...

Embodiment 3

[0035] Prepare high and low temperature resistant and UV resistant nylon cable ties as follows:

[0036] Preparation of raw material mixture: Put 9.29g of polyhexamethylene adipamide, 0.1kg of processing modifier, 0.5kg of cold resistance agent, and 0.08kg of compatibilizer into the high-mixer, and add 8ml of liquid paraffin at 300-7500 rpm Pre-mix for 10 minutes at a rotational speed per minute, then add 0.03 kg of anti-ultraviolet agent and stir for 15 minutes.

[0037] Melt extrusion granulation: Add the above mixture into the twin-screw extrusion to melt and extrude the strands. The temperatures of the screw feeding zone, conveying zone, plasticizing zone and mouth film are respectively 260 °C, 265 °C, 270 °C and 275 °C. The rotation speed is 50-600 rpm, the screw temperature is 180-310 ℃, the material stays in the extruder for 1-15 min, and then it is naturally cooled in the cooling tank, and then pelletized. Dry in a drying oven at 80-130 °C for 6-12 h, and then produce...

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Abstract

The invention belongs to the field of core technologies of high-low-temperature resisting nylon cable ties, in particular to a high-low-temperature resisting anti-ultraviolet nylon cable tie and a preparation method thereof. The high-low-temperature resisting anti-ultraviolet nylon cable tie is prepared by, by weight, polyhexamethylene adipamide 60%-99.6%, processed modifying agent 0.1%-8%, cold-resistant agent 0.1-10%, uvio-resistant agent 0.1-1% and compatilizer 0.1-5%. By comparing 21 groups of compounds of the cold-resistant agents and uvio-resistant agents, one of super-quality low-price additives with good high-low-temperature resisting performance is selected. Different auxiliary agents are pre-processed to enable the auxiliary agents and nylon to have good compatibility. The injection molding performance is improved through a production process and addition of the auxiliary agents.

Description

technical field [0001] The invention belongs to the core technical field of high and low temperature resistant nylon cable ties, and in particular relates to a high and low temperature resistant and ultraviolet ray resistant nylon cable tie and a preparation method thereof. Background technique [0002] High and low temperature resistant and UV resistant nylon cable ties are the core of the field of new materials, and play an important role in promoting and supporting the development of high technology. High and low temperature resistant and anti-ultraviolet nylon cable ties are new applications brought about by the widespread use of nylon cable ties and abnormal climate in recent years. Usually nylon cable ties have good performance in acid resistance, alkali resistance, insulation, etc., but in- Below 25°C, nylon usually exhibits cold brittleness, loses 70% of its toughness, and even breaks when it is folded at -45°C, losing its binding function; There is no way to use n...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L33/04C08L51/06C08K5/3492C08K5/41C08K5/134C08K5/07C08K5/3475B29B9/06B29B7/00B29B9/16B65D63/10B29C47/92B29C45/00B29L29/00B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92561B29C2948/92704B29C2948/92923
Inventor 邢毫
Owner PINGDINGSHAN YASU IND