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Adhesive resin used for steel band reinforced polyethylene spiral corrugated pipe and preparation method thereof

A technology of polyethylene spiral and bonding resin, which is applied in the direction of graft polymer adhesive, pipe/pipe joint/pipe fitting, mineral oil hydrocarbon copolymer adhesive, etc., and can solve the problem of bonding resin maleic anhydride monomer Residue, low production efficiency, irritating odor and other problems, to achieve the effects of high heat resistance and mechanical strength, improved production efficiency, and stable product performance

Active Publication Date: 2011-06-08
合诚技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesive resin prepared by this method has serious residues of maleic anhydride monomer and a large pungent smell, and due to the instability of the chemical reaction, the performance of the prepared adhesive resin fluctuates greatly, and the production efficiency is relatively low.
[0005] In addition, compared with the traditional steel-plastic composite pipe production process, the production process of the steel belt reinforced polyethylene spiral corrugated pipe is relatively complicated, and the requirements for the processability of the bonding resin are relatively high. If the requirements are not met, a special adhesive resin with strong pertinence is needed

Method used

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  • Adhesive resin used for steel band reinforced polyethylene spiral corrugated pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) 3 parts of maleic anhydride and 0.1 part of dicumyl peroxide (DCP) were dissolved in 3.1 parts of acetone, and then mixed with 50 parts of high density polyethylene, 30 parts of linear low density polyethylene, 20 parts of ethylene-acetic acid The ethylene copolymer (EVA) is added to the high-speed mixer and mixed evenly, and finally reacted and extruded through a twin-screw extruder to obtain a graft-modified polyolefin masterbatch; the parts are parts by weight; twin-screw extrusion The processing temperature of the machine is 180°C.

[0041] (2) 30 parts by weight of graft-modified polyolefin masterbatch, 55 parts by weight of high-density polyethylene, 5 parts by weight of petroleum resin, 5 parts by weight of SBS, 5 parts by weight of polyethylene wax and antioxidant B215 (Swiss Ciba Company) 0.3 parts by weight were added to the high-speed mixer, mixed uniformly, and blended and granulated by a twin-screw extruder, and the processing temperature of the twin-sc...

Embodiment 2

[0043] (1) Dissolve 1 part of methacrylic acid, 0.1 part of benzoyl peroxide (BPO), and 0.2 part of di-tert-butyl peroxide in 1.3 parts of acetone, and then mixed with 50 parts of high-density polyethylene and 30 parts of low-density polyethylene. Ethylene (LDPE) and 20 parts of ethylene-vinyl acetate copolymer (EVA) were added to a high-speed mixer to mix evenly, and finally reacted and extruded through a twin-screw extruder to obtain a graft-modified polyolefin masterbatch; The numbers are parts by weight; the processing temperature of the twin-screw extruder was 150°C.

[0044] (2) 20 parts by weight of graft-modified polyolefin masterbatch, 40 parts by weight of high-density polyethylene, 20 parts by weight of linear low-density polyethylene, 5 parts by weight of polymerized rosin, 10 parts by weight of SIS, 5 parts by weight of paraffin, 0.1 parts by weight of oxygen agent 168 (Ciba, Switzerland) and 0.4 parts by weight of 1010 (Ciba, Switzerland) were added to the high-s...

Embodiment 3

[0046] (1) 5 parts of acrylamide, 0.2 parts of tert-butyl hydroperoxide, 0.3 parts of cumene hydroperoxide were dissolved in 5.5 parts of acetone, and then mixed with 50 parts of high density polyethylene, 30 parts of linear low density polyethylene, 20 parts of ethylene-vinyl acetate copolymer (EVA) were added to the high-speed mixer and mixed uniformly, and finally reacted and extruded through a twin-screw extruder to obtain a graft-modified polyolefin masterbatch; the parts are parts by weight ; The processing temperature of the twin-screw extruder is 200 °C.

[0047] (2) 25 parts by weight of graft-modified polyolefin masterbatch, 40 parts by weight of high-density polyethylene, 20 parts by weight of low-density polyethylene, 5 parts by weight of terpene resin, 5 parts by weight of butadiene rubber, 5 parts by weight of microcrystalline wax The parts by weight and 0.4 parts by weight of antioxidant B225 (Ciba, Switzerland) were added to the high-speed mixer, mixed uniforml...

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Abstract

The invention discloses adhesive resin used for a steel band reinforced polyethylene spiral corrugated pipe and a preparation method and applications thereof. The adhesive resin comprises the following raw materials in parts by weight: 20-30 parts of modified grafted polyolefin masterbatch, 55-60 parts of polyethylene, 10-15 parts of tackifying resin, 5 parts of lubricant and 0.3-0.5 part of antioxidant. The preparation method comprises the following steps: mixing the raw materials evenly, performing extrusion reaction, blending and granulating to prepare the finished product. The adhesive resin of the invention has less odor, stable product performance and higher heat resistance and mechanical strength; and the requirements of processing technology of the steel band reinforced polyethylene spiral corrugated pipe can be fully satisfied, and the defects of the products adopting the existing technologies such as high penetrating odor, low heat resistance and mechanical strength and unstable chemical reaction can be overcome.

Description

technical field [0001] The invention relates to the field of polymer adhesives, in particular to an adhesive resin used for steel-belt-reinforced polyethylene spiral corrugated pipes, a preparation method and application thereof. Background technique [0002] Steel belt reinforced polyethylene spiral corrugated pipe is a new type of composite pipe that has become popular in recent years, mainly used for buried drainage pipes. It is a double-walled spiral corrugated pipe with high density polyethylene as the base, and a steel strip coated with adhesive resin on the surface to form a corrugated shape as the main support structure, and is wound and compounded with polyethylene material to form a whole. Due to its high ring stiffness and easy installation, it has been widely used in China. [0003] The adhesive resin on the surface of the steel strip mainly plays the role of connecting the steel strip with the inner PE pipe and the outer PE. If the bonding is not good, the stee...

Claims

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Application Information

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IPC IPC(8): C09J123/06C09J151/06C09J157/02C09J193/04C09J145/00C09J153/02C08F255/02F16L9/16F16L9/18
Inventor 匡俊杰游华燕池晓明诸泉蒋文真
Owner 合诚技术股份有限公司
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