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A kind of high elastic HDPE resin and preparation method thereof

A high-elasticity, resin technology, applied in the field of polymers, can solve the problem of high cost, achieve the effect of enhancing mechanical strength performance, improving tensile strength and resilience, and improving tensile strength and resilience

Active Publication Date: 2021-11-02
YANGZHOU XINBAO RESIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of metal materials is much higher than that of HDPE, resulting in a higher cost of making HDPE steel strip winding pipes.

Method used

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  • A kind of high elastic HDPE resin and preparation method thereof

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preparation example Construction

[0034] A kind of preparation method of above-mentioned high elasticity HDPE resin is characterized in that, comprises the following steps:

[0035] (1) Disperse nano-calcium carbonate in absolute ethanol, add 5-10% by mass of coupling agent at a constant temperature of 70°C, stir for 1 hour, heat and evaporate to obtain modified nano-calcium carbonate;

[0036] (2) Mix and melt HDPE, linear low-density polyethylene, modified nano-calcium carbonate, superfine fiber, elastic fiber, antioxidant, and lubricant, and extrude through a mold to form a high-elastic HDPE resin embryo;

[0037] (3) Cool and shape the embryo, and process it into a pipe.

Embodiment 1

[0039] High elastic HDPE resin is characterized in that, in parts by mass, it comprises the following raw materials: 65 parts of HDPE, 12.5 parts of linear low-density polyethylene, 20 parts of modified nano-calcium carbonate, 7.5 parts of superfine fiber, 7.5 parts of elastic fiber, anti- 1 part of oxygen agent, 2.5 parts of lubricant. The length of the elastic fibers is 2.5 mm, and the length of the ultrafine fibers is 12.5 mm, which are pulverized to a predetermined average length by a pulverizer.

[0040] A kind of preparation method of above-mentioned high elasticity HDPE resin is characterized in that, comprises the following steps:

[0041] (1) Disperse nano-calcium carbonate in absolute ethanol, add 7.5% by mass of coupling agent at a constant temperature of 70°C, stir for 1 hour, heat and evaporate to obtain modified nano-calcium carbonate;

[0042] (2) Mix and melt HDPE, linear low-density polyethylene, modified nano-calcium carbonate, superfine fiber, elastic fiber...

Embodiment 2

[0045] High elastic HDPE resin is characterized in that, in parts by mass, it comprises the following raw materials: 70 parts of HDPE, 10 parts of linear low density polyethylene, 25 parts of modified nano-calcium carbonate, 5 parts of superfine fiber, 10 parts of elastic fiber, anti- 0.5 parts of oxygen agent, 5 parts of lubricant. The length of the elastic fibers is 1 mm, and the length of the ultrafine fibers is 15 mm, which are pulverized to a predetermined average length by a pulverizer.

[0046] A kind of preparation method of above-mentioned high elasticity HDPE resin is characterized in that, comprises the following steps:

[0047] (1) Disperse nano-calcium carbonate in absolute ethanol, add 5% by mass of coupling agent at a constant temperature of 70°C, stir for 1 hour, heat and evaporate to obtain modified nano-calcium carbonate;

[0048] (2) Mix and melt HDPE, linear low-density polyethylene, modified nano-calcium carbonate, superfine fiber, elastic fiber, antioxid...

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Abstract

The invention discloses a high-elasticity HDPE resin and a preparation method thereof. The high-elasticity HDPE resin comprises the following raw materials: HDPE, linear low-density polyethylene, modified nano-calcium carbonate, superfine fiber, elastic fiber, antioxidant agent, lubricant. The tensile strength and resilience of the high elastic HDPE resin of the present invention have been comprehensively improved, and the modified nano-calcium carbonate, ultrafine fiber, and elastic fiber have played a synergistic effect in the process of preparing the high elastic HDPE resin, and the tensile strength has been synergistically improved and resilience, and the tensile strength and resilience are further improved by matching the length of ultrafine fibers and elastic fibers.

Description

technical field [0001] The invention belongs to the technical field of polymers, and in particular relates to a high-elasticity HDPE resin and a preparation method thereof. Background technique [0002] High-density polyethylene (HDPE) is a white powder or granular product. Non-toxic, tasteless, crystallinity of 80% to 90%, softening point of 125 to 135°C, service temperature up to 100°C; hardness, tensile strength and creep are better than low density polyethylene; wear resistance, Good electrical insulation, toughness and cold resistance; good chemical stability, insoluble in any organic solvents at room temperature, corrosion resistant to acids, alkalis and various salts; the film has low permeability to water vapor and air, and absorbs water Low resistance; poor aging resistance, environmental stress cracking resistance is not as good as low-density polyethylene, especially thermal oxidation will reduce its performance, so antioxidants and ultraviolet absorbers must be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L75/04C08L77/00C08L67/02C08K9/04C08K3/26
CPCC08K2003/265C08K2201/011C08L23/06C08L2203/18C08L2205/035C08L2205/16C08L2207/062C08L23/0815C08L75/04C08L77/00C08L67/02C08K9/04C08K3/26
Inventor 徐雄剑
Owner YANGZHOU XINBAO RESIN
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