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Chain extender composition used for recycling nylon and preparation method thereof

A technology for recycling nylon and chain extenders, which is applied in the field of nylon auxiliaries, can solve the problems affecting the effect of chain extenders, and achieve the effect of obvious modification effect, stable processing process and low cost

Active Publication Date: 2014-01-29
SHANXI CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recycled nylon contains a large amount of flame retardants, which will release alkaline substances during processing, which greatly affects the effect of chain extenders

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0012] Add 100g of KL-E4370 and 100g of calcium chloride to the GX-10B 500g multifunctional pulverizer (Zhejiang Gaoxin Industry and Trade Co., Ltd.) and mix for 3 to 5 minutes to get the chain extender composition.

example 2

[0014] Add 120g of KL-E4370 and 80g of calcium chloride to a GX-10B 500g multifunctional pulverizer (Zhejiang Gaoxin Industry and Trade Co., Ltd.) and mix for 3 to 5 minutes to get the chain extender composition.

example 3

[0016] Add 80g of KL-E4370 and 120g of calcium chloride to the GX-10B 500g multifunctional pulverizer (Zhejiang Gaoxin Industry and Trade Co., Ltd.) and mix for 3 to 5 minutes to get the chain extender composition.

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PUM

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Abstract

The invention provides a chain extender composition used for recycling nylon and a preparation method thereof. The main components of the chain extender composition comprise an epoxy functionalized chain extender and an acidic absorbent. The preparation method of the chain extender composition comprises: uniformly mixing the chain extender with the acidic absorbent in a high speed agitator under room temperature. Compared with the existing pure chain extender modified nylon recycling technology, the chain extender composition disclosed by the invention has the beneficial effects of improving the efficiency of the chain extender and recycling the modification cost of recycled nylon.

Description

technical field [0001] The invention relates to a chain extender composition for recycling nylon and a preparation method thereof, belonging to the technical field of nylon auxiliary agents. Background technique [0002] Chain extender is a new type of auxiliary agent in the modified plastics industry. It can increase the molecular weight of polymers by coupling or branching of macromolecules through multifunctional compounds with good thermal stability. The chain extension reaction is usually completed by reactive extrusion technology, which has the advantages of simplicity, speed and safety, improves product performance, and can improve the quality of materials, thereby enhancing the competitiveness of modified plastic products. Adding a chain extender to recycled nylon can ease the melt flow of recycled nylon, improve the modulus strength and even toughness of recycled nylon, improve the hydrolysis resistance of recycled nylon, and greatly improve the physical propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L33/10C08K3/22C08K3/30C08K3/16
CPCC08K3/16C08K3/30C08K2003/162C08K2003/168C08K2003/3045C08L77/00C08L2205/03C08L33/14C08L91/06
Inventor 王克智李训刚毛晨曦李向阳张建军张惠芳王改敬代燕琴王冉王凯王朋仁刘凤玉巩翼龙张鸿宇王四海
Owner SHANXI CHEM RES INST