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Long-carbon-chain polyamide, polyketone and polyphenylene sulfide alloy material and preparation method thereof

A carbon chain polyamide and polyphenylene sulfide technology, which is applied in the field of long carbon chain polyamide, polyketone and polyphenylene sulfide alloy materials and their preparation, can solve the problem of poor processability and oil resistance of polyketone, charring and carbonization , strain capacity/resilience and poor recoverability

Active Publication Date: 2021-09-14
GUANGZHOU CHENDONG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Disadvantages of polyketone: The processability and oil resistance of polyketone are not as good as polyamide. During the injection molding process, due to the narrow processing temperature range, it cannot be processed at a slightly lower temperature, and it may easily cause charring and carbonization at a slightly higher temperature.
But compared with polyketones, long carbon chain polyamides are superior in gas barrier, hydrocarbon barrier, permeability to unleaded gasoline, flame retardancy, abrasion resistance, heat resistance, strain capacity / rebound and recoverability etc. poor

Method used

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  • Long-carbon-chain polyamide, polyketone and polyphenylene sulfide alloy material and preparation method thereof
  • Long-carbon-chain polyamide, polyketone and polyphenylene sulfide alloy material and preparation method thereof
  • Long-carbon-chain polyamide, polyketone and polyphenylene sulfide alloy material and preparation method thereof

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preparation Embodiment 1

[0046] Preparation Example 1 (preparation of the long carbon chain polyamide used in the present invention):

[0047] The preparation method of described long carbon chain copolymerized nylon comprises the steps:

[0048]Salt-forming reaction: under the protection of nitrogen, dissolve 172kg of monomer B decanediamine and 230kg of monomer C dodecanedibasic acid in water, raise the temperature to 80°C, and react for 2 hours until the reaction liquid becomes a clear solution. Then add acetone to the solution, precipitate the reaction product, filter, wash the obtained filtrate with acetone, filter, and then dry at 58° C. for 24 hours to obtain product D;

[0049] Polymerization reaction: put 350kg of product D and 650kg of monomer A lauryl lactam together with deionized water or distilled water into an automatic control polymerization kettle with agitator, start stirring when the temperature in the polymerization kettle is heated to 125°C and continue to heat up, When the tempe...

Embodiment 1-4 and comparative example 1-3

[0052] Prepare polyamide, polyketone, polyphenylene sulfide alloy according to the following method:

[0053] Step A: Add polyamide, polyketone, polyphenylene sulfide, thermoplastic elastomer, sarin resin, and additives measured according to the formula components in Table 1 to a high-speed batch mixer and mix at high speed for 10-20 minutes, mix Obtain ready-mixed mixture evenly;

[0054] Step B: Put the ready-mixed mixture into TE-75 parallel twin-screw extruder for melt extrusion, extruder zone 1, zone 2, zone 3, zone 4, zone 5, zone 6, zone 7, zone 8, zone 9, The temperature of the machine head is set to 200°C, 220°C, 220°C, 210°C, 200°C, 190°C, 160°C, 150°C, 150°C, 210°C in sequence, the temperature control error control range is ±30°C, and the speed is set to 250r / min, and the speed error control range is ±50r / min; after water cooling, pelletizing, sieving and drying, long carbon chain polyamide, polyketone and polyphenylene sulfide alloy materials are obtained.

[00...

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Abstract

The invention belongs to the field of high polymer materials, and particularly relates to a long-carbon-chain polyamide, polyketone and polyphenylene sulfide alloy material and a preparation method thereof. The alloy material provided by the invention is characterized by comprising the following components in percentage by mass: 40-70% of long-carbon-chain polyamide, 15%-35% of polyketone, 5%-20% of polyphenylene sulfide, 5%-15% of a thermoplastic elastomer, 2%-5% of surlyn resin, and 0.3%-1% of an auxiliary agent. According to the invention, the long-carbon-chain polyamide and polyketone alloy material weakens the defects of polyamide in the aspects of gas barrier, hydrocarbon barrier, permeability of lead-free gasoline, flame retardance, wear resistance, heat resistance, strain capacity / resilience, restorability and the like, and weakens the defects of polyketone in processability and oil resistance; by adding polyphenylene sulfide, the chemical resistance and flame retardance of the whole system are enhanced, and meanwhile, the alloy material has the advantages of dimensional stability, wear resistance, excellent electrical property, high toughness, chemical resistance, hydrolysis resistance, fuel oil resistance, high thermal deformation temperature, good strain capacity and rebound resilience and wider processing window, and wide prospects are realized in the application of automobile and electronic and electric appliance markets.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a long carbon chain polyamide, polyketone and polyphenylene sulfide alloy material and a preparation method thereof. Background technique [0002] Nylon itself has certain excellent characteristics. However, in the application process, it will be found that in many cases, pure nylon materials cannot meet the needs, such as high hygroscopicity, poor dimensional stability of products, and insufficient strength and hardness. [0003] The composite material produced by long carbon chain nylon has better chemical resistance, low moisture absorption, dimensional stability, and toughness than conventional nylon. Due to the low water absorption of long carbon chain nylon, it still has excellent dielectric properties in a humid environment. This is a characteristic that short carbon chain nylons such as nylon 6 and nylon 66 do not have, but the rigidity is inherently weaker than other nyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L73/00C08L81/02C08L23/08C08G69/36
CPCC08L77/00C08G69/36C08L2201/08C08L2205/035C08L73/00C08L81/02C08L23/0876
Inventor 陈文冠杨冬李东阵
Owner GUANGZHOU CHENDONG NEW MATERIALS
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