Preparation method of polyamide 6 elastomer, and polyamide 6 elastomer prepared by preparation method

A polyamide and elastomer technology, which is applied in the field of new polymer material preparation, can solve the problems of industrialization difficulties, does not involve lactam type and aminocarboxylic acid type polyamide elastomer resins, etc., and achieves high melt strength and wide processing. range, and the effect of improving responsiveness

Inactive Publication Date: 2020-05-22
沧州旭阳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw materials of polyamides containing furan units are limited and industrialization is difficult
[0009] CN 108264635 A introduces a slightly cross-linked polyamide resin prepared by aliphatic diacid, aliphatic diamine, polyacid / polyamine, end-capping agent and catalyst, but does not involve lactam type and aminocarboxylic acid type Polyamide Elastomer Resin

Method used

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  • Preparation method of polyamide 6 elastomer, and polyamide 6 elastomer prepared by preparation method
  • Preparation method of polyamide 6 elastomer, and polyamide 6 elastomer prepared by preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Add 3110g of caprolactam, 110g of distilled water, 800g of polypropylene glycol (Mn=2000), 92g of dodecanedioic acid, and 60g of phosphoric acid in a 10L polymerization kettle, heat up to 200°C under nitrogen protection, and react for 3 hours under mechanical stirring at 300rpm; then At 260°C, react with 300rpm mechanical stirring for 5 hours; add 60g of resorcinol diglycidyl ether at 270°C, vacuum to 100Pa and continue to react with 100rpm mechanical stirring for 3 hours, then cast, pull Stripping, granulation, and finally putting the granulated elastomer resin into an extraction kettle, stirring and extracting with distilled water at 90-100°C for 8 hours, centrifugal dehydration, and drying to obtain the polyamide 6 elastomer.

Embodiment 2

[0046] Add 1770g caprolactam, 70g distilled water, 2000g polytetrahydrofuran (Mn=2000), 230g dodecanedioic acid, 53g phosphoric acid into a 10L polymerization kettle, heat up to 190°C under nitrogen protection, and react for 3 hours under mechanical stirring at 300rpm; then React at 250°C for 6 hours with mechanical stirring at 300rpm; add 80g of glycerol triglycidyl ether at 260°C, vacuum to 100Pa and continue to react with mechanical stirring at 100rpm for 3 hours, then cast belts and pull bars , granulation, and finally put the granulated elastomer resin into the extraction kettle, stir and extract with distilled water at 90-100° C. for 8 hours, centrifugally dehydrate, and dry to obtain the polyamide 6 elastomer.

Embodiment 3

[0048] Add 1410g of caprolactam, 55g of distilled water, 2400g of amino-terminated polyoxyethylene ether (Mn=1800), 195g of adipic acid, and 30g of phosphoric acid into a 10L polymerization kettle, raise the temperature to 180°C under nitrogen protection, and react for 2 hours under mechanical stirring at 300rpm Then, at 240°C, react with 300rpm mechanical stirring for 5 hours; after adding 60g of glycerol triglycidyl ether at 260°C, vacuumize to 100Pa and continue to react with 200rpm mechanical stirring for 2 hours, then cast belt, Stranding, granulation, and finally putting the granulated elastomer resin into an extraction kettle, stirring and extracting with distilled water at 90-100°C for 8 hours, centrifugal dehydration, and drying to obtain the polyamide 6 elastomer.

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Abstract

The invention discloses a preparation method of a polyamide 6 elastomer, the polyamide 6 elastomer prepared by the method, and a product prepared from the polyamide 6 elastomer. The preparation methodcomprises the steps of feeding replacement, hydrolysis ring opening, continuous polymerization, polymerization discharging, extraction drying and the like, wherein a secondary active center is addedinto an elastomer, a branched chain is introduced by an active center point, a planar cross-linked network structure is added, and the micro-cross-linking degree is controlled by using multifunctionalepoxy. The polyamide 6 elastomer disclosed by the invention has the characteristics of high melt strength, good processability, low compression set and high and low temperature impact resistance.

Description

technical field [0001] The invention belongs to the field of preparation of new polymer materials, and in particular relates to a preparation method of a polyamide 6 elastomer, a polyamide 6 elastomer prepared by the method and a product prepared from the polyamide 6 elastomer, the polyamide 6 elastomer Amide 6 elastomer is a slightly cross-linked polyetheramide / polyetheresteramide polymer resin with high melt strength and good elasticity. Background technique [0002] Polyamide elastomer is a new type of thermoplastic elastomer developed and applied in synthetic elastomers in recent years. It has good mechanical properties, chemical properties, rubber elasticity, high and low temperature resistance, and plastic processability. It can be applied to shoe materials. , automotive materials, sporting goods, etc. In order to maintain the diversity of elastomer processing and the stability of extrusion and foaming, the polymer melt must have sufficient strength and dimensional st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/40C08L77/00
CPCC08G69/40C08L77/00C08L2203/18
Inventor 潘宇姜立忠赵振伦陈玉坤韩振兴霍增辉党伟荣陈西波
Owner 沧州旭阳科技有限公司
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