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

A polyethylene screw, bonding resin technology, applied in the direction of graft polymer adhesives, pipes/pipe joints/fittings, mineral oil hydrocarbon copolymer adhesives, etc., can solve the problem of bonding resin maleic anhydride monomers. 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: 2012-06-20
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
  • 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) Dissolve 3 parts of maleic anhydride and 0.1 parts of dicumyl peroxide (DCP) in 3.1 parts of acetone, and then mix with 50 parts of high-density polyethylene, 30 parts of linear low-density polyethylene, and 20 parts of ethylene-acetic acid Ethylene copolymer (EVA) is added together in the high-speed mixer and mixed uniformly, and finally is extruded through a twin-screw extruder to obtain a grafted modified polyolefin masterbatch; the parts are parts by weight; the twin-screw extruder The processing temperature of the machine is 180°C.

[0041] (2) 30 parts by weight of grafted 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 are added to the high-speed mixer, mixed evenly, blended and granulated through the twin-screw extruder, the processing temperature of the twin-scre...

Embodiment 2

[0043] (1) Dissolve 1 part of methacrylic acid, 0.1 part of benzoyl peroxide (BPO), and 0.2 parts of di-tert-butyl peroxide in 1.3 parts of acetone, and then mix 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) are added together in a high-speed mixer and mixed uniformly, and finally reacted and extruded by a twin-screw extruder to obtain a grafted modified polyolefin masterbatch; the parts The numbers are parts by weight; the processing temperature of the twin-screw extruder is 150°C.

[0044] (2) 20 parts by weight of grafted 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, anti- Oxygen 168 (Swiss Ciba) 0.1 parts by weight and 1010 (Swiss Ciba) 0.4 parts by weight are added to the high-sp...

Embodiment 3

[0046] (1) Dissolve 5 parts of acrylamide, 0.2 parts of tert-butyl hydroperoxide, and 0.3 parts of cumene hydroperoxide in 5.5 parts of acetone, and then mix with 50 parts of high-density polyethylene, 30 parts of linear low-density polyethylene, 20 parts of ethylene-vinyl acetate copolymers (EVA) are added together in a high-speed mixer and mixed uniformly, and finally reacted and extruded by a twin-screw extruder to obtain a grafted 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 grafted 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 Parts by weight and 0.4 parts by weight of antioxidant B225 (Swiss Ciba) are added together in a high-speed mixer, mixed evenly, and ...

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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 for steel strip 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, and it is mainly used as a buried drainage pipe. It is a double-wall spiral corrugated pipe that uses high-density polyethylene as the matrix, and a steel strip coated with adhesive resin on the surface to form a corrugated form as the main support structure, and is wound and compounded with polyethylene material. 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 layer PE pipe and the outer layer PE. If the bonding is not good, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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