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Composite modified material for PE (Polyethylene) porous integrated pipe product and preparation method thereof

A technology of composite modification and integrated tube, which is applied in the direction of communication cables, electrical components, circuits, etc., can solve the problems of insufficient plasticization of materials, failure to guarantee product rigidity and toughness, unreasonable formula, etc., and achieve low manufacturing cost and small size. The effect of small change rate and shrinkage rate and less precipitated substances

Inactive Publication Date: 2012-06-20
HUBEI KAILE SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method that can improve the tensile strength and elongation at break performance of PE porous integrated pipes, while making the comprehensive indicators such as pipe stiffness, recovery rate and longitudinal retraction rate meet the requirements; to overcome Due to the unreasonable formula of the existing PE porous integrated pipe, when the special-shaped cold extrusion molding process is used, the plasticization of the material is insufficient, and the rigidity and toughness of the product cannot be guaranteed to meet the standards at the same time. Defects are used for the compounding of PE porous integrated pipe products Modified material and its preparation method

Method used

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Embodiment Construction

[0021] A specific embodiment is given below, taking the use of 160 kg composite modified material as an example.

[0022] Prepare each raw material by above weight percentage:

[0023] Weigh 100kg of HDPE with grade 5000S; weigh 6kg EV and 18kg PE to make EV and PE blend polymer; weigh 31.2kg of 6250 mesh superfine ground calcium carbonate, 0.48kg of coupling agent and stearic acid 0.32kg to make activation enhancer; weigh 4kg of aluminate coupling agent.

[0024] After the above-mentioned raw materials are ready, make according to the following preparation method:

[0025] The first step: put 31.2kg of 6250 mesh ultrafine ground calcium carbonate, 0.48kg of coupling agent and 0.32kg of stearic acid into the high-speed mixer, stir in high-speed thermal kneading, and the stirring speed is 1100 r / min , so that the organic matter is fully covered with inorganic calcium carbonate, when the temperature of high-speed hot kneading reaches 160 ° C, it is discharged into cold kneadin...

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Abstract

The invention relates to a composite modified material for a PE (Polyethylene) porous integrated pipe product and a preparation method thereof, belonging to the technical field of high polymer material physical modification. The composite modified material comprises the raw materials consisting of 62.5% of HDPE5000S, 15% of EV and PE blending polymer, 20% of an activation strengthening agent and 2.5% of an aluminate coupling agent and is prepared through a special process. The PE porous integrated pipe product prepared by using the composite modified material has the characteristics of being high in tensile strength, breakage elongation, rigidity and recovery rate index and low in size change and contractibility rate. The composite modified material can satisfy that the prepared PE porous integrated pipe product can ensure the double requirements of reaching the standards of toughness and rigidity at the same time under a cold extruding and forming process condition. The problems of being insufficient in material plastication and incapable of ensuring that rigidity and toughness of the product reach the standards at the same time caused by unreasonable material formulation in the event of adopting a special cold extruding and forming process in the traditional PE porous integrated pipe product are thoroughly solved.

Description

technical field [0001] The invention relates to a composite modified material used for PE porous integrated pipe products and a preparation method thereof, belonging to the technical field of physical modification of polymer materials. Background technique [0002] Most of the sheath products of communication optical cables are made of PE porous integrated pipe. Because this product is a special-shaped porous composite structure, it has high strength, good toughness, and easy installation. It solves the separation of optical cables and cables, and will not twist during construction The phenomenon affects the transmission performance of optical cables, and is widely used as an outer sheath tube for the protective layer of wires and cables. In order to protect the optical cable from geological material changes or external erosion, without stretching, shrinkage and external pressure, it is necessary to ensure that the outer sheath has good physical and mechanical properties, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K9/10C08K3/26C08K5/10B29B7/28B29B9/06B29C47/92H01B11/22B29C48/92
CPCB29C48/04B29C48/40
Inventor 张建强彭进雄陈登文
Owner HUBEI KAILE SCI & TECH
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