Super-tough green nylon 11 alloy prepared by using in-situ process and preparation method thereof

A green nylon and super-tough technology, applied in the field of materials, can solve the problems of less super-tough green nylon 11 alloy, unsuitable for mass use, strong equipment corrosion, etc., to achieve easy popularization and application, low equipment corrosion, excellent comprehensive performance Effect

Active Publication Date: 2012-12-19
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the research of super-tough nylon, the reactive compatibilizer used is generally maleic anhydride (MAH), but the grafting rate of MAH is low, and the compatibilization effect is limited, and glycidyl methacrylate (GMA) is used as The grafting rate of active monomer grafted polymer is generally higher than that of MAH as active monomer grafted polymer
Secondly, MAH is highly corrosive to equipment and has a greater impact on equipment, especially when it is used in industrial applications and more sophisticated equipment, it is very unfavorable
Third, MAH is highly irritating to the human body, especially the eyes. From the perspective of environmental protection and health, it should not be used in large quantities.
At present, there are few domestic reports on the preparation of super-tough green nylon 11 alloy by in-situ method

Method used

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  • Super-tough green nylon 11 alloy prepared by using in-situ process and preparation method thereof
  • Super-tough green nylon 11 alloy prepared by using in-situ process and preparation method thereof
  • Super-tough green nylon 11 alloy prepared by using in-situ process and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A kind of ultra-tough green nylon 11 alloy, its raw material composition and parts by weight are:

[0064]

[0065] The preparation method of the above-mentioned super-tough super-tough green nylon 11 alloy comprises the following steps:

[0066] (1) Dissolve the initiator dicumyl peroxide (DCP) in glycidyl methacrylate (GMA) to obtain a solution and place it for later use;

[0067] (2) Dry nylon 11 in a vacuum oven at 90°C for 4 hours, and place POE in a vacuum oven at 70°C for 4 hours. After cooling, mix nylon 11 and POE evenly, and then add high-density polyethylene grafted Malay Acid anhydride (HDPE-g-MAH), finally add the solution of step (1) to obtain a premix;

[0068] (3), the premix of step (2) is placed in the parallel twin-screw extruder to melt and extrude, and granulate. ℃, the temperature in the second zone is 190℃, the temperature in the third zone is 200℃, the temperature in the fourth zone is 200℃, the temperature in the fifth zone is 200℃, the tem...

Embodiment 2

[0071] A kind of ultra-tough green nylon 11 alloy, its raw material composition and parts by weight are:

[0072]

[0073] The preparation method of the above-mentioned super-tough super-tough green nylon 11 alloy comprises the following steps:

[0074] Step (1), step (2) are identical with step (1), step (2) of embodiment 1;

[0075] (3), the premix of step (2) is placed in the parallel twin-screw extruder to melt and extrude, and granulate. ℃, the temperature in the second zone is 190℃, the temperature in the third zone is 200℃, the temperature in the fourth zone is 200℃, the temperature in the fifth zone is 200℃, the temperature in the sixth zone is 200℃, the temperature in the seventh zone is 200℃, and the temperature of the die head is 195℃.

Embodiment 3

[0077] A kind of ultra-tough green nylon 11 alloy, its raw material composition and parts by weight are:

[0078]

[0079] The preparation method of the above-mentioned super-tough super-tough green nylon 11 alloy comprises the following steps:

[0080] (1) Dissolve the initiator 2,5-dimethyl-2,5-di-tert-butylperoxyhexane (L-101) in glycidyl methacrylate (GMA) to obtain a solution and place it spare;

[0081] (2) Dry nylon 11 in a vacuum oven at 90°C for 4 hours, and place POE in a vacuum oven at 70°C for 4 hours. After cooling, mix nylon 11 and POE evenly, and then add high-density polyethylene grafted Malay Acid anhydride (HDPE-g-MAH), finally add the solution of step (1) to obtain a premix;

[0082] (3), the premix of step (2) is placed in the parallel twin-screw extruder to melt and extrude, and granulate. ℃, the temperature in the second zone is 190℃, the temperature in the third zone is 200℃, the temperature in the fourth zone is 200℃, the temperature in the fifth ...

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Abstract

The invention discloses a super-tough green nylon 11 alloy prepared by using an in-situ process and a preparation method thereof. According to the invention, the prepared nylon 11 alloy has high toughness, low temperature resistance, low water absorption and low oil absorption, cost for the alloy can be reduced by about 26%, and the nylon 11 alloy has a great industrial application value. Raw materials for the super-tough nylon 11 alloy provided by the invention comprise, by weight, 55 to 95 parts of nylon 11, 5 to 45 parts of a copolymer of ethene and octene, 0.01 to 1 part of an initiator, 0.1 to 6 parts of glycidyl methacrylate and 0.1 to 4 parts of high density polyethylene-grafted maleic anhydride, wherein the sum of the weight parts of nylon 11 and the copolymer of ethene and octene is 100. Nylon 11 used in the invention is long-carbon-chain soft nylon synthesized with castor oil as a raw material and is a bio-based material. The prepared super-tough nylon 11 alloy in the invention has the characteristics of greenness and environment friendliness and has excellent comprehensive properties.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to an in-situ method for preparing a super-tough green nylon 11 alloy and a method thereof. Background technique [0002] Polyamide, also known as nylon, is the most widely used type of engineering plastics. The industrially produced varieties mainly include nylon 11, nylon 66, nylon 610 and nylon 11. Nylon is one of the five most important engineering plastics. Nylon 11 is a long carbon chain soft nylon synthesized from castor oil. Compared with nylon 6 and nylon 66, it has the advantages of low water absorption, good dimensional stability, low temperature resistance, and excellent electrical insulation properties; And it has an elastic memory effect. When the external force is removed, nylon 11 can return to its original shape; it has good stress crack resistance, and it is not easy to crack when embedded in metal parts; it can meet the injection molding and extrusion process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L23/08C08L51/06C08F255/02B29C47/92B29B13/06B29C48/92
CPCB29C48/04B29C48/40B29C48/625B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 朱怀才王忠强
Owner SINOPLAST NEW MATERIAL
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