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A kind of red phosphorus flame retardant nylon composition and preparation method thereof

A flame-retardant nylon and red phosphorus flame retardant technology, applied in the field of polymer materials, can solve the problems of poor flame retardancy and limited application range, and achieve the effect of simple preparation method and good toughness

Active Publication Date: 2016-02-03
CGN JUNER NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PA66 and PA6 are the two most widely used among them, but unmodified PA66 and PA6 have poor flame retardancy and are flammable materials. They are more flammable after adding glass fibers. , The danger of fire caused by electric sparks still exists, this shortcoming limits its application range, especially in the fields of electronic appliances and communications

Method used

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  • A kind of red phosphorus flame retardant nylon composition and preparation method thereof
  • A kind of red phosphorus flame retardant nylon composition and preparation method thereof
  • A kind of red phosphorus flame retardant nylon composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh the dried nylon resin, red phosphorus flame retardant, lubricant and antioxidant according to the following weight percentages, put them into the mixing barrel and mix them evenly, then place them in the hopper of the twin-screw extruder, and feed the glass fiber from the side The temperature of each zone of the twin-screw extruder is controlled at 180-280° C., and the nylon composition is prepared through melt extrusion and granulation.

[0044] Wherein, the ratio by weight percentage of nylon resin, red phosphorus flame retardant, lubricant and antioxidant is:

[0045] Nylon resin 64%;

[0046] Glass fiber 25%;

[0047] Red phosphorus flame retardant 7%;

[0048] Toughener 3%;

[0049] Lubricant 0.5%;

[0050] Antioxidant 0.5%.

[0051] Raw material source:

[0052]PA6 is used for nylon resin, which is PA612400 of Xinhui Meida; the brand of glass fiber is Taishan short fiber 435N; the red phosphorus flame retardant is Sichuan Chenguang 440B; the toughening...

Embodiment 2

[0054] Weigh the dried nylon resin, red phosphorus flame retardant, lubricant and antioxidant according to the following weight percentages, put them into the mixing barrel and mix them evenly, then place them in the hopper of the twin-screw extruder, and feed the glass fiber from the side The temperature of each zone of the twin-screw extruder is controlled at 180-280° C., and the nylon composition is prepared through melt extrusion and granulation.

[0055] Wherein, the ratio by weight percentage of nylon resin, red phosphorus flame retardant, lubricant and antioxidant is:

[0056] Nylon resin 66.1%;

[0057] Glass fiber 20%;

[0058] Red phosphorus flame retardant 8%;

[0059] Toughener 5%;

[0060] Lubricant 0.3%;

[0061] Antioxidant 0.6%.

[0062] Raw material source:

[0063] The nylon resin is PA66, which is PA66EPR27 of Shenma; the glass fiber is Jushi Long Fiber 988A; the red phosphorus flame retardant is FR4140R from Tongcheng, Anhui; the toughening agent is g...

Embodiment 3

[0065] Weigh the dried nylon resin, red phosphorus flame retardant, lubricant and antioxidant according to the following weight percentages, put them into the mixing barrel and mix them evenly, then place them in the hopper of the twin-screw extruder, and feed the glass fiber from the side The temperature of each zone of the twin-screw extruder is controlled at 180-280° C., and the nylon composition is prepared through melt extrusion and granulation.

[0066] Wherein, the ratio by weight percentage of nylon resin, red phosphorus flame retardant, lubricant and antioxidant is:

[0067] Nylon resin 59.8%;

[0068] Glass fiber 30%;

[0069] Red phosphorus flame retardant 6%;

[0070] Toughener 3%;

[0071] Lubricant 0.8%;

[0072] Antioxidant 0.4%.

[0073] Raw material source:

[0074] The nylon resin is PA66, which is PA66EPR27 of Shenma; the glass fiber is Jushi Long Fiber 988A; the red phosphorus flame retardant is Sichuan Chenguang 440B; the toughening agent is POE-g-MA...

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Abstract

The invention discloses a red phosphorus flame-retardant nylon composition and a preparation method thereof. The red phosphorus flame-retardant nylon composition comprises following ingredients, by weight: 55 to 75% of nylon resin, 15 to 35% of glass fibre, 6 to 8% of red phosphorus fire retardant, 2 to 5% of a flexibilizer, 0.2 to 1% of a lubricant and 0.2 to 1% of an anti-oxidant. The preparation method of the red phosphorus flame-retardant nylon composition comprises following steps: adding dried nylon resin, red phosphorus fire retardant, the flexibilizer, the lubricant and the anti-oxidant into a mixing barrel according to the weight ratio above, and mixing the mixture uniformly; transferring the mixture into a hopper of a double screw extruder; adding glass fibre from a side feed inlet; and granulating by melt extrusion so as to obtain the red phosphorus flame-retardant nylon composition. The red phosphorus flame-retardant nylon composition of the invention possesses excellent glowing filament flame resistance and toughness, and is suitable for the field of electronics and communication.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a red phosphorus flame-retardant nylon composition and a preparation method thereof for improving the flame-retardant properties of glow wire nylon materials. Background technique [0002] Nylon (polyamide) material is a basic resin with the largest output, the most variety, the widest application and excellent comprehensive performance among the five general-purpose engineering plastics. This kind of material is widely used in various fields. PA66 and PA6 are the two most widely used among them, but unmodified PA66 and PA6 have poor flame retardancy and are flammable materials. They are more flammable after adding glass fibers. , The danger of fire caused by electric sparks still exists, and this shortcoming limits its application range, especially in the fields of electronic appliances and communications. Therefore, the preparation of a low-cost flame-retardant nylon material ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/06C08K9/00C08K7/14C08K3/02
Inventor 周淑芬黄志杰
Owner CGN JUNER NEW MATERIALS