Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of nanometer barrier hot melt adhesive

A hot-melt adhesive and nanotechnology, applied in the direction of adhesives, graft polymer adhesives, adhesive types, etc., can solve the problems that affect the long-term bonding effect of the adhesive layer, do not have barrier properties, etc., and achieve good gas Tightness, cost-effective, and easy to use

Active Publication Date: 2013-03-27
GUANGZHOU LUSHAN NEW MATERIALS +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the polyolefin hot melt adhesive used to bond polyolefin substrates (polyethylene, polypropylene, etc.) and barrier materials (EVOH, PA, etc.) does not have barrier properties, the role of small molecules and organic molecules will Affects the long-term bonding effect of the bonding layer

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
  • Preparation method of nanometer barrier hot melt adhesive
  • Preparation method of nanometer barrier hot melt adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Dry 100 g of nano-montmorillonite modified with organic quaternary ammonium salt at 105° C. for 1 hour to fully remove water. Then get 100 grams of dried organic quaternary ammonium salt modified nano-montmorillonite and 1900 grams of high-density polyethylene (HDPE) resin and mix it with a high-speed mixer for 30 minutes. Certain mineral oil can be added to make the nano-montmorillonite particles Sticks to the surface of HDPE particles to achieve their uniform mixing. Melt and mix the homogeneously mixed material in a twin-screw extruder at an extrusion temperature of 200° C., cool and cut into pellets to obtain a nano-polyolefin material.

[0031] 800 grams of the above-mentioned nano-polyolefin material, 100 grams of tackifying resin EPDM and C7 petroleum resin, 1 gram of initiator DCP, 5 grams of monomeric acrylic acid, and 5 grams of maleic anhydride were fully mixed evenly. The uniformly mixed material is extruded and pelletized on a twin-screw extrude...

Embodiment 2

[0032] Example 2: Dry 150 g of nano-kaolin modified with organic quaternary ammonium salt at 105° C. for 1 hour to fully remove water. Then get 150 grams of dried organic quaternary ammonium salt modified nanometer montmorillonite and 1850 grams of low density polyethylene (LDPE) resin and mix 30min in high-speed mixer, can add certain mineral oil, make nanometer montmorillonite particle Sticks to the surface of LDPE particles to achieve their uniform mixing. Melt and mix the homogeneously mixed materials in a twin-screw extruder at an extrusion temperature of 200° C., cool and cut into pellets to obtain nanometer polyolefin materials.

[0033] 800 grams of the above-mentioned nanometer polyolefin material, 100 grams of tackifying resin POE, 100 grams of microcrystalline wax, 1 gram of di-tert-butyl peroxide initiator, 5 grams of monomer acrylate, and 5 grams of maleic anhydride were fully mixed evenly. The uniformly mixed material is extruded and granulated on a twin-screw e...

Embodiment 3

[0034]Example 3: Dry 50 grams of nano-bentonite modified with organic quaternary ammonium salt at 105° C. for 1 hour to fully remove water. Then get the dried organic quaternary ammonium salt modified nanometer montmorillonite 50 grams and 1950 grams of linear low density polyethylene (LLDPE) resin and mix 30min in the high-speed mixer, can add certain mineral oil, make nanometer montmorillonite The particles stick to the surface of the LLDPE particles, achieving their homogeneous mixing. Melt and mix the homogeneously mixed materials in a twin-screw extruder at an extrusion temperature of 200° C., cool and cut into pellets to obtain nanometer polyolefin materials.

[0035] 800 grams of the above-mentioned nanometer polyolefin material, 200 grams of tackifying resin POE, initiator 2,5-dimethyl-2, 1 gram of 5-two (tert-butyl peroxide) hexane, monomer maleic anhydride 10 Mix thoroughly. The uniformly mixed material is extruded and granulated on a twin-screw extruder with a spe...

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 a preparation method of a nanometer barrier hot melt adhesive. The hot melt adhesive is prepared by adding a certain amount of organic modified layered nano-silicate into polyolefin, performing melt blending to obtain a nano-polyolefin material, performing a melting reaction for in-situ grafting of a tackifying resin, a monomer, an initiator and the nano-polyolefin material in a twin-screw extruder, extruding, cooling, and granulating. The barrier hot melt adhesive prepared by the invention has good adhesive properties, barrier properties, and processing properties, is applicable not only to the fields of multilayer composite food packaging films and barrier containers, but also to the field of multilayer composite materials such as pesticide bottles, infusion tubes, automobile gasoline tanks, barrier packages, etc.

Description

technical field [0001] The invention belongs to the field of polymer composite material processing, and in particular relates to a preparation method of nanometer barrier hot melt adhesive. technical background [0002] Due to the characteristics of small particle size, large specific surface area, and many non-paired atoms on the surface of nanoparticles, if the nanoparticles can be well dispersed in the polymer, a very large number of strong interaction interfaces will be formed, so that it can be significantly improved at a very low filling amount. Improve the mechanical properties, thermal properties and barrier properties of polymers. Nano-polyolefin composite materials can be effectively prepared by intercalation composite method. This method uses the characteristics of layered nano-silicate with nano-sheet structure, inserts monomers between layers through organic modifiers, and performs in-situ polymerization. Reaction, or direct insertion of macromolecules and olig...

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): C09J151/06C09J11/04
Inventor 王明辉唐舫成汪加胜
Owner GUANGZHOU LUSHAN NEW MATERIALS