High-elasticity foaming material based on ethylene-vinyl acetate elastomers as well as preparation method and application thereof

A technology of vinyl acetate and foaming materials, applied in the field of foaming materials, can solve the problems of easy hydrolysis, high toxicity of toluene diisocyanate, easy discoloration, etc., and achieves good resilience, excellent anti-aging performance, and elongation at break. high effect

Inactive Publication Date: 2019-03-01
MEITOKU PLASTIC
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyurethane foam is not suitable for floor mats. The reason is that its main disadvantages are that it is prone to hydrolysis when exposed to water,

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
  • High-elasticity foaming material based on ethylene-vinyl acetate elastomers as well as preparation method and application thereof
  • High-elasticity foaming material based on ethylene-vinyl acetate elastomers as well as preparation method and application thereof
  • High-elasticity foaming material based on ethylene-vinyl acetate elastomers as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1:

[0033] A highly elastic foamed material based on ethylene-vinyl acetate elastomer, comprising the following raw materials calculated by weight: a polymer composed of a mixture of ethylene-vinyl acetate elastomer with VA content of 28% and low-density polyethylene LDPE 3kg, azodicarbonamide (AC) 300g, di-tert-butyl cumyl peroxybenzene (BIPB) 22g, stearic acid 30g, zinc oxide 40g, talc 2kg. The ethylene-vinyl acetate elastomer with a VA content of 28% is specifically selected from DuPont 265, and the mass percentage in the polymer is 100%; and its melt index is 3.0 g / 10min.

[0034] The preparation method is as follows: prepare the required raw materials as needed, place them in a closed rubber mixing machine for mixing and plasticizing treatment, wherein the temperature in the closed rubber mixing machine is 135 DEG C for 15 minutes of plasticization and discharge; The material discharged from the machine is sent to the open mill for 15 minutes of thinning;...

Example

[0035] Example 2 - Example 7:

[0036] Except that the mass percentage content of DuPont 265 in the polymer is different, the types and dosages of other preparation raw materials are the same as those in Example 1; and the preparation method is also the same as that in Example 1. In Examples 2-7, the specific mass of DuPont 265 in the polymer is the same as that in Example 1. The percentages are 90%, 80%, 75%, 70%, 60%, 50%.

Example Embodiment

[0040] Example 8:

[0041] A highly elastic foamed material based on ethylene-vinyl acetate elastomer, comprising the following preparation raw materials by weight: 3kg of ethylene-vinyl acetate elastomer with VA content of 25%, 380g of azodicarbonamide (AC) , Di-tert-butylperoxy cumene (BIPB) 25g, stearic acid 30g, zinc oxide 40g, talc 1.75kg. The ethylene-vinyl acetate elastomer with a VA content of 25% is specifically selected from DuPont 265, and its melt index is 8.1 g / 10min.

[0042] The preparation method is the same as that of Example 1.

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

PropertyMeasurementUnit
Melt indexaaaaaaaaaa
Melt indexaaaaaaaaaa
Melt indexaaaaaaaaaa
Login to view more

Abstract

The invention discloses a high-elasticity foaming material based on ethylene-vinyl acetate elastomers as well as a preparation method and application thereof. The ethylene-vinyl acetate elastomers with the VA content greater than or equal to 25 percent are adopted to partially or completely substitute an ordinary polymer raw material to prepare the high-elasticity foaming material. The prepared finished product is soft, the shore A hardness is less than 25 and is apparently better than that of the traditional material which is 30 or more; the resilience is good, the elongation rate at break ishigh, and the prepared finished product has an anti-fatigue and non-slip effect; molecules of the ethylene-vinyl acetate elastomers do not contain carbon-carbon dual-bond sensitive to the oxidation,so that the finished product is excellent in anti-aging performance; the preparation material does not contain harmful substances such as formaldehyde, plasticizers and the like and does not contain dioxin generated by chloride, and is high in safety and environmental protection performance; the preparation method can be directly used on an original production line, the process procedures are notincreased, and the industrialized production can be realized; and the production improvement cost can be reduced.

Description

technical field [0001] The invention relates to the field of foaming materials, in particular to a highly elastic foaming material based on ethylene-vinyl acetate elastomer and its preparation method and application. Background technique [0002] Foaming material refers to the foaming material that gasifies and generates bubbles inside the material to make it a porous material. It has the advantages of light weight, high specific strength, excellent insulation performance, significant cushioning capacity and strong adsorption capacity, and has been widely used. In the automotive industry, construction industry, packaging industry, agriculture, water treatment and air filtration and other fields; such as the manufacture of foam plastics, foam rubber, foam resin, etc. [0003] The main characteristic of polyolefin (mainly polyethylene or EVA) foam floor mats used in children's crawling mats and home improvement materials is a combination of flexibility and rigidity, that is, a...

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
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/22C08K5/09C08K3/34C08J9/10
CPCC08J9/0023C08J9/0066C08J9/0095C08J9/103C08J2203/04C08J2323/06C08J2323/08C08J2423/06C08J2423/08
Inventor 潘炜
Owner MEITOKU PLASTIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap