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Nylon/ethane-ethenol copolymer commixed type lamination barrier material and its preparation method

A barrier material, vinyl alcohol technology, applied in the field of polymer materials and preparation, can solve problems such as unsatisfactory barrier effect and narrow application range, and achieve the effects of improving impact toughness, barrier performance and tensile strength

Inactive Publication Date: 2007-05-30
武汉中泽恒远生物材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a nylon / ethylene-vinyl alcohol copolymer blended laminated barrier material and its preparation method in order to solve the problem of unsatisfactory barrier effect and narrow application range of the laminated barrier material in the prior art

Method used

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  • Nylon/ethane-ethenol copolymer commixed type lamination barrier material and its preparation method
  • Nylon/ethane-ethenol copolymer commixed type lamination barrier material and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A nylon / ethylene-vinyl alcohol copolymer blended laminate barrier material is prepared from the following raw materials in mass percentage:

[0035] Nylon 95%, ethylene-vinyl alcohol copolymer (EVOH) 5%, and nylon and ethylene-vinyl alcohol copolymer (EVOH) 1.5% peroxide by weight.

[0036] The nylon is nylon 6, nylon 11, nylon 12 or nylon 1212.

[0037] The molar content of the ethylene component in the EVOH is 28%.

[0038] Peroxides are organic peroxides, including hydroperoxides, dialkyl peroxides DCP (dicumyl peroxide), diacyl peroxides BPO (dibenzoyl peroxide), etc., peroxides Esters, peroxydicarbonates. Dicumyl peroxide is preferred.

[0039] The preparation method is to mix the three materials uniformly, control the temperature at 220° C., blend, extrude and granulate through a screw extruder.

Embodiment 2

[0041] A nylon / ethylene-vinyl alcohol copolymer blended laminate barrier material is prepared from the following raw materials in mass percentage:

[0042] Nylon 90%, ethylene-vinyl alcohol copolymer (EVOH) 10%, and nylon and ethylene-vinyl alcohol copolymer (EVOH) 1.5% peroxide by weight.

[0043] The nylon is nylon 6.

[0044] The molar content of the ethylene component in the ethylene-vinyl alcohol copolymer (EVOH) is 48%.

[0045]Peroxides are organic peroxides, including hydroperoxides, dialkyl peroxides DCP (dicumyl peroxide), diacyl peroxides BPO (dibenzoyl peroxide), etc., peroxides Esters, peroxydicarbonates. Dibenzoyl peroxide is preferred.

[0046] The preparation method is as follows: after mixing the three materials evenly, the temperature is controlled at 190° C., blending, extruding and granulating through a screw extruder.

Embodiment 3

[0048] A nylon / ethylene-vinyl alcohol copolymer blended laminate barrier material is prepared from the following raw materials in mass percentage:

[0049] Nylon 85%, ethylene-vinyl alcohol copolymer (EVOH) 15%, and nylon and ethylene-vinyl alcohol copolymer (EVOH) 1.5% peroxide by weight.

[0050] The nylon is nylon 11.

[0051] The molar content of the ethylene component in the ethylene-vinyl alcohol copolymer (EVOH) is 38%.

[0052] Peroxides are organic peroxides, including hydroperoxides, dialkyl peroxides DCP (dicumyl peroxide), diacyl peroxides BPO (dibenzoyl peroxide), etc., peroxides Esters, peroxydicarbonates. Peroxyesters are preferred.

[0053] The preparation method is to mix the three materials uniformly, control the temperature at 200° C., blend and extrude to granulate through a screw extruder.

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Abstract

The invention discloses a nylon / ethylene-vinylol copolymer blending typed laminated obstruct material and making method, which comprises the following parts: 65-95% nylon, 5-35% ethylene-vinylol copolymer and 0.2-3% peroxidate corresponding to the total quantity of ethylene-vinylol copolymer.

Description

technical field [0001] The invention relates to a polymer material and a preparation method thereof, in particular to a nylon / ethylene-vinyl alcohol copolymer blended laminate barrier material and a preparation method thereof. Background technique [0002] Nylon resin has the advantages of good oil resistance, low temperature resistance, termite resistance, easy processing, and good mechanical properties. At present, it is mainly used in automobile fuel tanks and oil pipelines. With the increasing demand for environmental protection, the requirements for oil separation performance of fuel tanks and oil pipelines are also getting higher and higher. As a barrier material, the barrier performance of nylon is relatively inferior to that of EVOH ethylene-vinyl alcohol copolymer. The most notable feature of ethylene-vinyl acetate copolymer (EVOH) is that it has good gas barrier properties. It is resistant to gases, aromas, solvents, etc. All have very good barrier properties, wit...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L23/08C08K5/14
Inventor 胡国胜王标兵丁正亚李迎春张静婷
Owner 武汉中泽恒远生物材料技术有限公司
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