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Nylon/polyketone alloy material and preparation method thereof

An alloy material, nylon technology, applied in the field of nylon/polyketone alloy material and its preparation, can solve the problems of affecting dimensional stability, inferior strength and rigidity, low friction coefficient, etc., to improve thermal stability, increase surface hardness, The effect of excellent flame retardancy

Inactive Publication Date: 2018-02-02
安徽科高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that the processing window is narrow, sensitive to temperature, easy to degrade, and the strength and rigidity in dry state are not as good as traditional engineering plastics
[0003] Polyamide, that is, nylon, has excellent mechanical properties, chemical resistance, processability, heat and oxygen aging resistance, high softening point, oil resistance, good electrical insulation, self-extinguishing, non-toxic, odorless, dyeing Good performance, low friction coefficient, wear resistance, self-lubrication, shock absorption and noise reduction, and excellent processing and molding characteristics; the disadvantage is that the water absorption is large, which affects the dimensional stability

Method used

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  • Nylon/polyketone alloy material and preparation method thereof
  • Nylon/polyketone alloy material and preparation method thereof
  • Nylon/polyketone alloy material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0025] The preparation method of described nylon / polyketone alloy material comprises the following steps:

[0026] 1) Accurately weigh the components of the formula, mix nylon and polyketone resin uniformly to obtain component A, and mix compatibilizer, lubricant, antioxidant, stabilizer and nucleating agent uniformly to obtain component B ; Glass fiber addition via side feed;

[0027] 2) Add component A and component B into a twin-screw extruder in different regions at the same time for extrusion, water cooling and pelletizing to obtain a nylon / polyketone alloy material with excellent performance.

[0028] Among them, the temperature of the twin-screw extruder from the feed section to the machine head is as follows: the temperature of the first zone is 160°C-180°C, the temperature of the second zone is 230°C-250°C, the temperature of the third zone is 230°C-250°C, and the temperature of the fourth zone is 210°C. ℃-230℃, the temperature of the fifth zone is 210℃-230℃, the tem...

Embodiment 1-3

[0042]Prepare compatibilizer maleic anhydride grafted polyketone, its composition proportioning by weight is:

[0043]

[0044]

[0045] The preparation method of this compatibilizer comprises steps:

[0046] (1) take each component by weight proportioning;

[0047] (2) Dissolve the maleic anhydride in the components weighed in step (1) in the middle of the comonomer, then place the polyketone, initiator and stabilizer in a high mixer and stir for 5 -10 minutes;

[0048] (3) Place the mixture obtained in step (2) in a twin-screw machine, melt and extrude, and granulate. 180-200°C, the temperature of the fourth zone is 160-180°C, the temperature of the fifth zone is 160-180°C, the temperature of the die head is 190-210°C, the residence time of the cylinder is 1-3 minutes, and the melt pressure is 10-20MPa.

[0049] Through the above steps, the maleic anhydride grafted polyketone compatibilizer is finally obtained, and the grafting rate of Example 2 is the highest.

Embodiment 4-8

[0051] The compatibilizer that embodiment 2 obtains is used for the preparation of nylon and polyketone alloy material, specifically as follows:

[0052]

[0053] Performance testing and evaluation:

[0054] The particle materials prepared in the above-mentioned Examples 4-8 and Comparative Examples 1-3 were first dried in a blast oven at 100-120° C. for 4 hours, and then the dried particle materials were made into standard test specimens with an injection molding machine test.

[0055] Wherein, the tensile strength is tested according to the ASTM D-638 standard. The sample type is type I, the spline size (mm): (176±2) (length)×(12.6±0.2) (end width)×(3.05±0.2) (thickness), and the tensile speed is 50mm / min ;

[0056] The notched impact strength is tested according to ASTM D-256 standard. The sample type is type I, and the sample size (mm): (63±2)×(12.45±0.2)×(3.1±0.2); the notch type is type A, and the remaining thickness of the notch is 1.9mm;

[0057] Corrosion resi...

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Abstract

The invention discloses a nylon / polyketone alloy material and a preparation method thereof. The nylon / polyketone alloy material comprises, by weight, 10-50 parts of nylon resin, 40-80 parts of polyketone resin, 10-30 parts of glass fibers, 0.1-0.2 part of initiator, 1-3 parts of maleic anhydride, 2-6 parts of comonomer, 0.2-1 part of antioxidant, 0.2-0.8 part of stabilizer, 0.3-0.6 part of lubricant and 0.1-0.5 part of nucleating agent. The nylon / polyketone alloy material improves the performance of nylon materials and thermal stability of polyketone materials, can substitute for glass fiber reinforced nylon, reinforced PPS and POM and is applied to extremely harsh environments.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a nylon / polyketone alloy material with excellent performance and a preparation method thereof. Background technique [0002] Polyketone is widely used in many fields due to its excellent heat resistance, chemical corrosion resistance, barrier and wear resistance. Polyketone has low water absorption, high rigidity and toughness balance, and high heat distortion temperature. Combination with other engineering plastics Modification has potential. But the disadvantage is that the processing window is narrow, sensitive to temperature, easy to degrade, and the strength and rigidity in the dry state are not as good as traditional engineering plastics. [0003] Polyamide, that is, nylon, has excellent mechanical properties, chemical resistance, processability, heat and oxygen aging resistance, high softening point, oil resistance, good electrical insulation, self-extinguishing, non-toxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L73/00C08L77/02C08L51/08C08L51/06C08K7/14C08K5/098C08F283/00C08F212/08C08F222/06
CPCC08L73/00C08F283/00C08K2201/003C08K2201/004C08L2201/02C08L2201/08C08L2205/02C08L2205/035C08L2205/24C08F212/08C08F222/06C08L77/02C08L51/08C08L51/06C08K7/14C08K5/098
Inventor 许江威王勇李树东李抗抗
Owner 安徽科高新材料有限公司
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