Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A special ammonia-free foaming agent masterbatch for ldpe high foaming and preparation method thereof

A foaming agent and high-foaming technology, which is applied in the field of ammonia-free foaming agent masterbatch and its preparation for LDPE high-foaming process, which can solve the problem of stimulating ammonia smell

Active Publication Date: 2021-06-01
JIANGSU SOPO CHEM +2
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foaming masterbatch is a common product form. Compared with powder foaming agent, although this product form solves the above-mentioned flying technical problems, it still has an obvious irritating ammonia smell.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A special ammonia-free foaming agent masterbatch for ldpe high foaming and preparation method thereof
  • A special ammonia-free foaming agent masterbatch for ldpe high foaming and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A non-ammonia-smell foaming agent master batch for LDPE high foaming, which is composed of 75 parts of azodicarbonamide, 5 parts of ammonia removal agent, 0.5 part of dispersant and 19.5 parts of carrier resin in parts by weight. Wherein the ammonia removal agent is citric acid, which is used to remove the by-product ammonia and eliminate the pungent smell in the foamed product. The dispersant is white oil, which is used to help and improve the uniform dispersion effect of the effective components of azodicarbonamide and ammonia removal agent in the carrier resin. The carrier resin is ethylene-vinyl acetate, which is used to pre-mix azodicarbonamide and ammonia removal agent to form a high concentration and easy dispersion.

[0020] The preparation method is: add the proportioned azodicarbonamide, citric acid, white oil, and ethylene-vinyl acetate resin into the internal mixer, and make the internal mixing The temperature of the material in the machine reaches 90°C, an...

Embodiment 2

[0025] A non-ammonia-smell foaming agent master batch for LDPE high foaming, which is composed of 60 parts of azodicarbonamide, 10 parts of ammonia removal agent, 2 parts of dispersant and 28 parts of carrier resin in parts by weight. Among them, the ammonia removal agent is calcium chloride, which is used to remove the by-product ammonia and eliminate the pungent smell in the foamed product. The dispersant is stearic acid, which is used to help and improve the uniform dispersion effect of the effective components of the azodicarbonamide and the ammonia removal agent in the carrier resin. The carrier resin is ethylene-vinyl acetate, which is used to pre-mix azodicarbonamide and ammonia removal agent to form a high concentration and easy dispersion.

[0026] The preparation method is: add the proportioned azodicarbonamide, calcium chloride, stearic acid, and ethylene-vinyl acetate resin into the internal mixer, so that the temperature of the material in the internal mixer reach...

Embodiment 3

[0029] A non-ammonia-smell foaming agent master batch for LDPE high foaming, which is composed of 60 parts of azodicarbonamide, 10 parts of ammonia removal agent, 5 parts of dispersant and 25 parts of carrier resin in parts by weight. Among them, the ammonia removal agent is aluminum tripolyphosphate, which is used to remove the by-product ammonia and eliminate the pungent smell in the foamed product. The dispersant is polyethylene wax (PE wax), which is used to help and improve the uniform dispersion effect of the effective components of azodicarbonamide and ammonia removal agent on the carrier resin. The carrier resin is polyolefin elastomer, which is used to pre-mix azodicarbonamide and ammonia removal agent to form a high concentration and easy dispersion.

[0030] The preparation method is: add the proportioned azodicarbonamide, aluminum tripolyphosphate, PE wax, and polyolefin elastomer into the internal mixer, so that the temperature of the material in the internal mixe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an ammonia-free foaming agent masterbatch for LDPE high foaming process and a preparation method thereof. The ammonia-free foaming agent masterbatch is calculated in parts by weight. , ammonia removal agent, dispersant and carrier resin, calculated in parts by weight, consists of 25-75 parts of azodicarbonamide, 5-40 parts of ammonia removal agent, 0.5-5 parts of dispersant, and 19.5-75 parts of carrier resin 30 servings. The preparation method is to banbury and mix the carrier resin, azodicarbonamide, ammonia removal agent, and dispersant in an internal mixer, and the mixing temperature is 90-140°C, and the obtained lumpy mixture is extruded through a die by an extruder , diced by a rotary knife and cooled.

Description

technical field [0001] The invention relates to a foaming agent masterbatch, in particular to a non-ammonia-smell foaming agent masterbatch for LDPE high foaming process and a preparation method thereof. Background technique [0002] Azodicarbonamide foaming agent is a yellow solid powder. Because of its large gas production capacity and high cost performance, it is the most commonly used foaming agent in the production of LDPE high foaming process. However, due to the generation of ammonia gas as a by-product during the decomposition process of ordinary azodicarbonamide foaming agents, LDPE high-foaming products all have an unpleasant pungent smell. [0003] LDPE high-foaming products are widely used. The cushion lining inside the luggage, the filling and fixing of precision instruments and high-end gift boxes are all made of this material. With the enhancement of consumers' awareness of environmental protection, high-end applications are limited because of the pungent sme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L91/00C08K5/092C08K3/16C08K3/32C08J9/10C08J3/22
CPCC08J3/226C08J9/0023C08J9/0061C08J9/0066C08J9/103C08J2203/04C08J2323/06C08J2423/06C08J2423/08C08J2491/00C08K5/092C08K2003/162C08K2003/327
Inventor 胡宗贵董建平朱桂生邵守言张之文黄永明唐丽
Owner JIANGSU SOPO CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com