Foaming master batch and thickening type plastic film and corresponding preparation methods

A technology of foaming masterbatch and foaming agent, which is applied in the field of foaming masterbatch and thickened plastic film, which can solve the problems of film thickness affecting cost and performance, and achieve high cost performance, simple production process and broad market prospect Effect

Active Publication Date: 2016-04-20
FSPG HI TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of the above technical solution is that the increase of film thickness will affect its cost and performance

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
  • Foaming master batch and thickening type plastic film and corresponding preparation methods
  • Foaming master batch and thickening type plastic film and corresponding preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 Shown, present embodiment prepares foam masterbatch and comprises the following steps:

[0039] Add 30-60% by weight of low-density polyethylene (MI=10-20g / min), 20-30% by weight of EVA (ethylene-vinyl acetate copolymer, VA=10-20%), and foam Agent (azodicarbonamide) 10-20% by weight, dispersant (such as polyethylene wax or stearic acid) 10-20% by weight, nucleating agent (such as ultrafine talcum powder) 0-10% by weight , Foam control agent (such as oxalic acid) 0-10% by weight. Stir for 10-20 minutes to discharge, then use a single-screw extruder or internal mixer to granulate, control the processing temperature to not exceed 120°C and discharge for later use.

[0040] like figure 2 As shown, the preparation of thickened plastic film in this embodiment comprises the following steps:

[0041] Use a three-layer co-extrusion blown film machine. Inner layer film, outer layer film take LDPE (MI=2-5g / min) as main raw material, add the calcium carbonate of...

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
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention provides a foaming master batch. The foaming master batch is prepared from, by weight, 30%-60% of low-density polyethylene, 20%-30% of EVA, 10%-20% of foaming agent and 10%-20% of dispersing agent. The invention further provides a method for preparing the foaming master batch, thickening type plastic film taking the foaming master batch as the raw material and a preparation method of the thickening type plastic film. The thickening type plastic film takes polyethylene as the main raw material, by means of three-layer co-extrusion film blowing, the foaming agent is added to an interlayer but not added to inner film and outer film, film blowing is conducted at a certain temperature and speed, foaming is conducted on the interlayer of the film but not conducted on the inner film and the outer film, the thicknesses of all the layers are controlled, and therefore the film is thickened without affecting the cost and the performance of the film. The products can be applied directly and can also be applied on multi-layer composite plastic weaved cloth. The preparation process of the products is simple, the cost performance is high, the market prospect is wide, and positive social meaning is achieved.

Description

technical field [0001] The invention relates to a foam masterbatch, a thickened plastic film and a corresponding manufacturing method. Background technique [0002] At present, the geomembrane used for waterproofing and anti-seepage in projects such as reservoirs, rivers, roads, culverts, dams, and garbage treatment plants is mainly composed of cross-linked polyethylene film and non-woven fabric layer. During the acupuncture production process, there are often broken needles. During the construction process, the broken needles in the non-woven fabric often stab the construction personnel; leak. [0003] Chinese patent application 201510554411.X discloses a manufacturing method of EVA foamed film, including the preparation of foaming masterbatch, foaming promotion masterbatch preparation and extrusion blow molding foaming of film. Its main raw material is EVA, which is a single-layer foam. [0004] Chinese patent application 201510474749.4 discloses a method for preparing ...

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 Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/34C08K5/09C08K5/092C08J9/10C08J3/22B32B27/18B32B27/32
CPCB32B27/18B32B27/32C08J3/226C08J5/18C08J9/103C08J2323/06C08J2423/08C08L23/06C08L23/0853C08K3/34C08K5/09C08K5/092
Inventor 赵照孔德敬刘活蓬
Owner FSPG HI TECH
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