Supercharge Your Innovation With Domain-Expert AI Agents!

Method for preparing polyethylene/maleic anhydride melt grafting high condensing pre-mixed master batch

A technology of polyethylene grafting and maleic anhydride, applied in the field of preparation of highly concentrated premixed masterbatches

Active Publication Date: 2011-05-18
TIANJIN RUIJIE PLASTIC PROD
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to stabilize the grafting process due to the non-uniform mixing and dispersion of the grafting components in the current polyethylene / maleic anhydride melt grafting process The disadvantages of poor performance and fluctuations in the amount of grafted substances provide a method for stabilizing the grafting process and improving the quality of grafted substances

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
  • Method for preparing polyethylene/maleic anhydride melt grafting high condensing pre-mixed master batch
  • Method for preparing polyethylene/maleic anhydride melt grafting high condensing pre-mixed master batch
  • Method for preparing polyethylene/maleic anhydride melt grafting high condensing pre-mixed master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation process is as follows: 100 parts of HDPE, 1.2 parts of MAH, 0.15 parts of initiator TX101, and 0.4 parts of antioxidant 1010 are weighed according to the proportion and directly mixed in a high-speed disperser. Then put it into the hopper of the twin-screw extruder for melt extrusion grafting. The temperature of each section of the twin-screw extruder is respectively: the temperature of zone I is 140°C, the temperature of zone II is 170°C, the temperature of zone III is 200°C, and the temperature of zone IV is 200°C , V zone temperature 210°C, head temperature 210°C, feed screw speed 30r / min, host screw speed 150r / min. The residence time of the material in the twin-screw extruder is 1.2 min. Then the grafted product is cooled and pelletized to obtain a high-density polyethylene grafted maleic anhydride product (HDPE-g-MAH).

[0039] Example 2:

Embodiment 2

[0041] Example 3:

Embodiment 3

[0043] Example 4:

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
melting pointaaaaaaaaaa
melt flow indexaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a highly-enriched pre-mixed master batch for melting graft of polythene and maleic anhydride, which belongs to the technical field of polymer material modification and processing. The method is characterized in that a special mixing method is adopted to mix main grafting compositions (grafting monomer, an initiating agent and a crosslinking inhibitor) and a dispersion resin to produce granular highly-enriched pre-mixed master batch, and the highly-enriched pre-mixed master batch is simply mixed with granular polyethylene resin to perform meltinggraft on a double screw extruder. The method improves even dispersing property of the grafting compositions, and simultaneously avoids the adhering and falling off of the initiating agent and the grafting monomers on a feed device of the extruder, thereby improving process stability and operating flexibility of the melting graft of the polythene and the maleic anhydride, and the quality of grafting products.

Description

technical field [0001] The invention relates to a method for preparing a high-concentration premixed masterbatch for polyethylene / maleic anhydride melt grafting. The invention belongs to the technical field of polymer material modification and processing. Background technique [0002] Polyethylene (PE) is a general-purpose plastic with a wide range of uses. It has the advantages of large output, low price, water resistance, chemical resistance and good molding process. It occupies a very important position in polymer materials and is widely used in daily necessities, transportation, Electrical appliances, packaging and other industries. However, polyethylene is a typical non-polar polymer, and the blending compatibility with polar polymers and the interfacial bonding force with inorganic fillers are relatively poor, and the bonding performance and surface printing performance of polyethylene products are not good. It brings many restrictions to practical application. In o...

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): C08F255/02C08F2/00B29B9/02B29C47/92B29C47/10B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/92561B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 俞强万斌韩伟恒丁永红姚自力徐建建
Owner TIANJIN RUIJIE PLASTIC PROD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com