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Adhesive resin for composite hose, and preparation method of adhesive resin

A technology for bonding resins and composite hoses, applied in the direction of grafted polymer adhesives, adhesives, adhesive types, etc., can solve the problems of monomer residue, insufficient adhesion, crystal point impurities, etc., and achieve high performance Stability, high adhesion, less crystal points

Inactive Publication Date: 2017-06-30
SHANGHAI BANGZHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many researches in the fields of metal composite hose and rubber composite hose in China, and there are relatively few researches on plastic composite hose. There are the above problems, such as insufficient adhesion, serious monomer residue, and more crystal point impurities. shortcoming

Method used

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  • Adhesive resin for composite hose, and preparation method of adhesive resin
  • Adhesive resin for composite hose, and preparation method of adhesive resin
  • Adhesive resin for composite hose, and preparation method of adhesive resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A method for preparing an adhesive resin for composite hoses, the specific steps are as follows:

[0054] (1) In terms of parts by mass, take 3 parts of maleic anhydride, 1 part of acetamide and 0.5 parts of initiator ethylene oxide, dissolve them in 9 parts of acetone and mix them evenly, and then mix them with 150 parts of polypropylene (at 190 ° C × 2.16kg The melting index under 7g / 10min) is added to the high-speed mixer and mixed evenly, and finally through the reactive twin-screw extruder (screw length-to-diameter ratio L / D is 50:1) reaction extrusion granulation, drying Maleic anhydride and acetamide grafted polypropylene masterbatches were obtained. Wherein, the extrusion temperature of the reactive twin-screw extruder is 150-210°C. Specifically, the first zone of the barrel is 150-160°C, the second zone of the barrel is 160-170°C, the third zone of the barrel is 170-180°C, the fourth zone of the barrel is 180-190°C, the fifth zone of the barrel is 190-200°C, and...

Embodiment 2

[0057] A method for preparing an adhesive resin for composite hoses, the specific steps are as follows:

[0058] (1) In terms of parts by mass, 4 parts of maleic anhydride, 1 part of acetamide and 0.5 part of initiator ethylene oxide were dissolved in 24 parts of acetone and mixed uniformly, and then mixed with 150 parts of polypropylene (at 190 ° C × 2.16kg The melting index under the temperature is 12g / 10min) together into the high-speed mixer and mixed evenly, and finally through the reactive twin-screw extruder (screw length-to-diameter ratio L / D is 50:1) reaction extrusion granulation, drying Maleic anhydride and acetamide grafted polypropylene masterbatches were obtained. Wherein, the extrusion temperature of the reactive twin-screw extruder is 150-210°C. Specifically, the first zone of the barrel is 150-160°C, the second zone of the barrel is 160-170°C, the third zone of the barrel is 170-180°C, the fourth zone of the barrel is 180-190°C, the fifth zone of the barrel i...

Embodiment 3

[0061] A method for preparing an adhesive resin for composite hoses, the specific steps are as follows:

[0062] (1) In terms of parts by mass, 2.4 parts of maleic anhydride, 0.8 parts of acetamide and 0.3 parts of initiator ethylene oxide were dissolved in 7 parts of acetone and mixed evenly, and then mixed with 150 parts of polypropylene (at 190 ° C × 2.16kg The melting index under 10g / 10min) is added to the high-speed mixer and mixed evenly, and finally passed through the reactive twin-screw extruder (screw length-to-diameter ratio L / D is 50:1) reaction extrusion granulation, drying Maleic anhydride and acetamide grafted polypropylene masterbatches were obtained. Wherein, the extrusion temperature of the reactive twin-screw extruder is 150-210°C. Specifically, the first zone of the barrel is 150-160°C, the second zone of the barrel is 160-170°C, the third zone of the barrel is 170-180°C, the fourth zone of the barrel is 180-190°C, the fifth zone of the barrel is 190-200°C,...

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Abstract

The invention provides an adhesive resin for a composite hose. The adhesive resin comprises the following components in parts by mass: 35-45 parts of maleic anhydride and acetamide grafted polypropylene granule, 60-80 parts of high-density polyethylene, 20-30 parts of polyolefin elastomer, 0.2-1 part of processing agent, 0.2-0.5 part of antioxidant, 1-10 parts of plasticizer, and 3-9 parts of heat stabilizer. The invention further provides a preparation method of the adhesive resin for a composite hose. According to the adhesive resin for the composite hose and the preparation method of the adhesive resin, the prepared adhesive resin for the composite hose is transparent in inherent color, stable in performances, fewer in fisheyes, and high in adhesion power, the composite hose prepared from the adhesive resin has good adhesion property, strong barrier property and smooth internal and external surface, as well as the advantages of being good in thermal stability, and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to an adhesive resin used for composite hoses and a preparation method thereof. Background technique [0002] Since the composite hose is added with ethylene-vinyl alcohol copolymer (EVOH) to act as a barrier layer, it can effectively block gas, maintain product quality, and improve product shelf life. It is widely used in packaging fields such as food, cosmetics, and pharmaceuticals. The composite hose is generally prepared by five-layer co-extrusion technology. The inner and outer layers are polyethylene (PE) layers, the middle layer is a barrier layer of ethylene / vinyl alcohol copolymer (EVOH), and the bonding resin is used between the PE layer and the barrier layer. bonding. At present, the adhesive resin basically relies on imports, mainly including two types of products, ethylene-acrylic acid copolymer (EAA) and maleic anhydride grafted PE. Among them, EAA is a forei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/06C09J151/06C09J123/08C09J11/06C09J11/08C08F255/02C08F222/06B29C47/92B29C48/92
Inventor 储江顺毕宏海彭艳华毕宏清程启山汪丽陈旭睿毕宏俊欧阳贵薛明跃
Owner SHANGHAI BANGZHONG NEW MATERIAL
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