Supernylon 6 alloy and method for prearing supernylon 6 alloy by means of in-situ reaction compatibilization

A nylon and super-tough technology, applied in the field of super-tough nylon 6 alloy, can solve problems such as poor mechanical properties of blends, and achieve the effects of easy popularization and application, high notched impact strength and low water absorption

Active Publication Date: 2012-11-14
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, POE is a non-polar elastomer, and the mechanical properties of the blend obtained by simply blending POE and PA6 are not good, so it is necessary to graft and modify POE

Method used

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  • Supernylon 6 alloy and method for prearing supernylon 6 alloy by means of in-situ reaction compatibilization
  • Supernylon 6 alloy and method for prearing supernylon 6 alloy by means of in-situ reaction compatibilization
  • Supernylon 6 alloy and method for prearing supernylon 6 alloy by means of in-situ reaction compatibilization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The super-tough nylon 6 alloy prepared by the in-situ reaction compatibilization method is blended with the following raw materials: 90 parts by weight of nylon 6 (PA6), 10 parts of ethylene and octene copolymer (POE), 2,5-dimethyl- 2,5-Di-tert-butylperoxyhexane (L-101) 0.1 part, maleic anhydride (MAH) 1 part, high density polyethylene grafted maleic anhydride (HDPE-g-MAH) 2 parts.

[0050] The method for preparing super-tough nylon 6 alloy by in-situ reaction compatibilization method includes the following steps:

[0051] (1) Dissolve the initiator 2,5-dimethyl-2,5-di-tert-butylperoxide hexane and maleic anhydride in acetone, and place it for later use;

[0052] (2) Put nylon 6 in a vacuum oven for drying treatment, control the oven temperature at 90°C for 4 hours, and place the POE in a vacuum oven for drying treatment, control the oven temperature at 70°C for 4 hours, Then cool nylon 6 and POE to room temperature;

[0053] (3) Mix the dried nylon 6 and POE uniformly in the ...

Embodiment 2

[0056] The super-tough nylon 6 alloy prepared by in-situ reaction compatibilization method is blended with the following raw materials by weight: 80 parts of nylon 6 (PA6), 20 parts of ethylene and octene copolymer (POE), 2,5-dimethyl- 2,5-Di-tert-butylperoxyhexane (L-101) 0.1 part, maleic anhydride (MAH) 1 part, high density polyethylene grafted maleic anhydride (HDPE-g-MAH) 2 parts.

[0057] The method for preparing super-tough nylon 6 alloy by in-situ reaction compatibilization method is the same as that in Example 1.

Embodiment 3

[0059] The super-tough nylon 6 alloy prepared by the in-situ reaction compatibilization method is blended with the following raw materials: 70 parts by weight of nylon 6 (PA6), 30 parts of ethylene and octene copolymer (POE), 2,5-dimethyl- 2,5-Di-tert-butylperoxyhexane (L-101) 0.1 part, maleic anhydride (MAH) 1 part, high density polyethylene grafted maleic anhydride (HDPE-g-MAH) 2 parts.

[0060] The method for preparing super-tough nylon 6 alloy by in-situ reaction compatibilization method is the same as that in Example 1.

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Abstract

The invention discloses a supernylon 6 alloy and a method for preparing supernylon 6 alloy by means of in-situ reaction compatibilization. The method includes mixing nylon 6 and ethylene with octylene copolymer, trigger and maleic anhydride and preparing supernylon 6 alloy high in tenacity, resistant to low temperature and low water absorption in a double-parallel-screw extruder. The raw materials of the supernylon 6 alloy includes, by weight, 55-95 parts of nylon 6, 5-45 parts of POE (polyolefin elastomer), 0.01-1 part of trigger, 0.1-4 parts of maleic anhydride and 0.1-4 parts of HDPE-g-MAH (high-density polyethylene-g-maleic anhydride), wherein the trigger is organic peroxide including hydroperoxide, alkyl peroxide, dibenzoyl peroxide, lipoperoxide and peroxide carbonate. The supernylon 6 alloy is excellent in comprehensive performance, high in impact strength of notches, resistant to low temperature and impact, low in water absorption and easy to popularize and apply, technique process is shortened, and production efficiency is improved.

Description

Technical field [0001] The invention belongs to the field of materials, and specifically relates to an in-situ reaction compatibilization method for preparing super-tough nylon 6 alloy with high toughness, low temperature resistance and low water absorption. Background technique [0002] Polyamide, also known as nylon (PA), is the basic resin with the widest application, the most variety, the largest output and excellent comprehensive performance among the five general engineering plastics. PA6 is a translucent or opaque milky white crystalline polymer. It has high mechanical strength, good toughness, abrasion resistance, oil resistance, chemical resistance, self-lubrication, low friction coefficient and other excellent comprehensive properties, as well as a certain flame retardancy. , Easy to process. However, PA6 has poor impact resistance, especially low temperature resistance, and has a large water absorption rate, which limits the application field and scope. [0003] As a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/06C08F255/02C08G81/02B29C47/92B29C48/92
CPCB29C48/40B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 朱怀才王忠强
Owner SINOPLAST NEW MATERIAL
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