CN102993703A - Polystyrene modified nylon polyamide 12 (PA12) material for automobile oil pipe and preparation method of polystyrene modified nylon PA12 material - Google Patents

Abstract

The invention discloses a polystyrene modified nylon polyamide 12 (PA12) material for an automobile oil pipe, which is prepared from the following raw materials based on parts by weight: 10-15 parts of polystyrene, 100-110 parts of nylon PA12, 10-15 parts of nylon 6, 5-8 parts of poly-4-methyl-1-amylene, 2-5 parts of acrylate impact modifier (ACR), 1-2 parts of silane coupling agent KH550, 1-2 parts of cross-linking agent TAC, 5-10 parts of nano bentonite, 5-10 parts of nano vermiculite, 1-2 parts of isopropyl 3 (dioctyl pyrophosphoric acid acyloxy) titanate, 1-2 parts of methyl triethoxysilane, 1-2 parts of anti-aging agent ODA, 1-2 parts of antioxidant 1010, 15-20 parts of modified tree ash, 1-2 parts of antioxidant DLTP, 1-2 parts of ethylene bis stearamide, 3-4 parts of cis-butenedioic acid dibutyl ester, 1-2 parts of n-butyl methacrylate, 1-2 parts of zinc stearate and 1-2 parts of calcium stearate. The antioxidant 1010 and the tree ash are added into the polystyrene modified nylon PA12 material for modification, so that the impact resistance, the toughness and the tensile strength of the nylon material are improved, and the material cost is reduced; and the polystyrene modified nylon PA12 material has the advantages of good chemical resistance, permeability resistance and wear resistance, excellent size stability, high impact resistance and tensile strength and the like, and is hard to break, thus meeting the demand of the automobile oil pipe.

Description

A kind of automobile oil pipe Polystyrene nylon PA12 material and preparation method thereof

Technical field

The present invention relates to a kind of automobile oil pipe material, specifically a kind of modified nylon material for automobile oil pipe and preparation method thereof.

Background technology

Nylon has good toughness, self lubricity, wear resistance, chemical resistant properties, gas-premeable, and oil-proofness, low temperature resistant, the nontoxic and easy advantage such as painted, so nylon is used widely in automotive industry, the usage quantity of nylon is in continuous increase on the automobile oil pipe, but nylon Shortcomings still on osmotic-pressure-tolerant, wear resistance, tensile strength, pressure-bearing property, lower temperature resistance need to improve.

Summary of the invention

In order to alleviate shortcomings and deficiencies of the prior art, the object of the present invention is to provide a kind of automobile oil pipe Polystyrene nylon PA12 material and preparation method thereof.

Polystyrene 10-15, nylon PA12 100-110, nylon 6 10-15, poly--4-methyl-1-pentene 5-8, acrylic ester impact-resisting modifier ACR 2-5, Silane coupling agent KH550 1-2, linking agent TAC 1-2, nano-bentonite 5-10, nanometer vermiculite 5-10, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1-2, Union carbide A-162 1-2, anti-aging agent ODA 1-2, modification antioxidant 1010 1-2, modification trees ashes 15-20, anti-oxidant DLTP 1-2, ethylene bis stearamide 1-2, dibutyl maleate 3-4, n-BMA 1-2, Zinic stearas 1-2, calcium stearate 1-2;

Described modification trees ashes prepare by the following method:

The trees ashes were put into the immersion of 10-15% hydrogen peroxide solution after 3-4 hour, pull out, dry under the temperature 40-45 degree to water content 2-3%, add and be equivalent to the nano silicon of its weight 5-8%, the sec.-propyl three of 5-8% (dioctylphyrophosphoric acid acyloxy) titanic acid ester, the dibutyl maleate of 1-2%, the Zinic stearas of 3-4%, mix, stirred 30-50 minute at 60-70 ℃ of lower 3500-4000 rev/min, mix, dry.

Described modification antioxidant 1010 prepares by the following method:

(1) vermiculite is used 10-15% salt acid soak 3-4 hour, and deionized water wash soaked 3-4 hour with the 10-12% sodium hydroxide solution again, and is extremely neutral with deionized water wash again, dries;

(2) in antioxidant 1010, add tripoly phosphate sodium STPP, the 3-5% aluminium hydroxide of vermiculite, the 2-3% of the described oven dry be equivalent to its weight 3-5%, the sodium laurylsulfate of 2-3%, 60-70 ℃ of lower the stirring 40-50 minute.

Described automobile oil pipe Polystyrene nylon PA12 material preparation method is characterized in that may further comprise the steps:

(1) takes by weighing each raw material by prescription, drop in the high-speed mixer, preheat to 80-90 ℃, insulation, stirring 5-6 hour; Continue to be heated to 95-105 ℃, and continue to stir, be incubated 30-45 minute;

(2) above-mentioned uniform mixture is sent into carried out melt blending and granulation in the parallel double-screw extruder, the extruder barrel temperature is 245-270 ℃.

The present invention has following beneficial effect:

The present invention is by adding the modification of antioxidant 1010 and trees ashes, improve shock resistance, toughness and the tensile strength of nylon material, reduce material cost about 20%, have that chemical resistant properties is good, osmotic-pressure-tolerant, wear resistance, good stability of the dimension, shock resistance is strong, tensile strength is high, the advantage such as be difficult for breaking can satisfy the needs of automobile oil pipe.

Embodiment

The present invention is further illustrated below in conjunction with specific embodiment.

Embodiment

Automobile oil pipe Polystyrene nylon PA12 material, made by the raw material of following weight part:

Polystyrene 15, nylon PA12 100, nylon 6 15, poly--4-methyl-1-pentene 8, acrylic ester impact-resisting modifier ACR 2, Silane coupling agent KH550 2, linking agent TAC 1, nano-bentonite 5, nanometer vermiculite 5, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2, Union carbide A-162 1, anti-aging agent ODA 2, modification antioxidant 1010 2, modification trees ashes 15, anti-oxidant DLTP 1, ethylene bis stearamide 2, dibutyl maleate 3, n-BMA 1, Zinic stearas 2, calcium stearate 2;

Described modification trees ashes prepare by the following method:

The trees ashes were put into the immersion of 10% hydrogen peroxide solution after 3 hours, pull out, dry under the temperature 40-45 degree to water content 3%, add and be equivalent to the nano silicon of its weight 8%, 8% sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester, 1% dibutyl maleate, 4% Zinic stearas, mix, stirred 50 minutes at 60-70 ℃ of lower 3500-4000 rev/min, mix, dry.

Described modification antioxidant 1010 prepares by the following method:

(1) vermiculite was with 15% salt acid soak 4 hours, and deionized water wash soaked 3 hours with 12% sodium hydroxide solution again, again with deionized water wash to neutral, oven dry;

(2) in antioxidant 1010, add the vermiculite, 3% tripoly phosphate sodium STPP, 3% aluminium hydroxide of the described oven dry be equivalent to its weight 5%, 2% sodium laurylsulfate, 60-70 ℃ of lower the stirring 40-50 minute.

The preparation method may further comprise the steps:

(1) takes by weighing each raw material by prescription, drop in the high-speed mixer, preheat to 90 ℃, insulation, stirring 6 hours; Continue to be heated to 105 ℃, and continue to stir, be incubated 45 minutes;

(2) above-mentioned uniform mixture is sent into carried out melt blending and granulation in the parallel double-screw extruder, the extruder barrel temperature is 245-270 ℃.

The performance perameter of the nylon that the present embodiment is produced sees the following form.

Tensile strength: 82 Mpa(DIN73378)

Shock strength: 75Mpa(DINENISO17901)

Oil resistance (rate of expansion behind the immersion oil) % 1.1

Low temperature properties ℃ :-70, (standard P V3304)

Abradability mg:11(DIN53754)

The fuel oil infiltration capacity is less than 0.0045 gram/sky.

Claims (2)

1. an automobile oil pipe is characterized in that with Polystyrene nylon PA12 material, is made by the raw material of following weight part:

Polystyrene 10-15, nylon PA12 100-110, nylon 6 10-15, poly--4-methyl-1-pentene 5-8, acrylic ester impact-resisting modifier ACR 2-5, Silane coupling agent KH550 1-2, linking agent TAC 1-2, nano-bentonite 5-10, nanometer vermiculite 5-10, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1-2, Union carbide A-162 1-2, anti-aging agent ODA 1-2, modification antioxidant 1010 1-2, modification trees ashes 15-20, anti-oxidant DLTP 1-2, ethylene bis stearamide 1-2, dibutyl maleate 3-4, n-BMA 1-2, Zinic stearas 1-2, calcium stearate 1-2;

Described modification trees ashes prepare by the following method:

The trees ashes were put into the immersion of 10-15% hydrogen peroxide solution after 3-4 hour, pull out, dry under the temperature 40-45 degree to water content 2-3%, add and be equivalent to the nano silicon of its weight 5-8%, the sec.-propyl three of 5-8% (dioctylphyrophosphoric acid acyloxy) titanic acid ester, the dibutyl maleate of 1-2%, the Zinic stearas of 3-4%, mix, stirred 30-50 minute at 60-70 ℃ of lower 3500-4000 rev/min, mix, dry;

Described modification antioxidant 1010 prepares by the following method:

(1) vermiculite is used 10-15% salt acid soak 3-4 hour, and deionized water wash soaked 3-4 hour with the 10-12% sodium hydroxide solution again, and is extremely neutral with deionized water wash again, dries;

(2) in antioxidant 1010, add tripoly phosphate sodium STPP, the 3-5% aluminium hydroxide of vermiculite, the 2-3% of the described oven dry be equivalent to its weight 3-5%, the sodium laurylsulfate of 2-3%, 60-70 ℃ of lower the stirring 40-50 minute.

2. an automobile oil pipe as claimed in claim 1 is characterized in that may further comprise the steps with Polystyrene nylon PA12 material preparation method:

(1) takes by weighing each raw material by prescription, drop in the high-speed mixer, preheat to 80-90 ℃, insulation, stirring 5-6 hour; Continue to be heated to 95-105 ℃, and continue to stir, be incubated 30-45 minute;

(2) above-mentioned uniform mixture is sent into carried out melt blending and granulation in the parallel double-screw extruder, the extruder barrel temperature is 245-270 ℃.