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Polyolefin-based composite material and preparation method thereof

An olefin-based composite material and olefin-based resin technology are applied in the field of polyolefin-based composite materials and their preparation, and can solve the problems of poor pull-out force, impact resistance, and poor vibration and noise reduction effects of metal structural parts that are prone to warping deformation. The problems of high density of high mineral-filled composite materials can improve the compatibility and bonding force of the interface, improve the stiffness and toughness, and reduce the weight per unit volume.

Pending Publication Date: 2020-03-03
洛阳双瑞橡塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a polyolefin-based composite material and its preparation method to solve the problem that the polyolefin-based thermoplastic composite material has a low oxygen index, is easy to burn, has low strength and is prone to warping and deformation and is used in rail transit and bridges. In the construction process of construction and other projects, metal structural parts have poor pull-out resistance, poor heat resistance, prone to high-temperature creep, high-density mineral-filled composite materials, and poor impact resistance and vibration and noise reduction effects.

Method used

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  • Polyolefin-based composite material and preparation method thereof

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preparation example Construction

[0048] The present invention also provides a method for preparing a polyolefin-based composite material. The method for preparing the polyolefin-based composite material is used to prepare the above-mentioned polyolefin-based composite material. Specifically, the preparation method of the polyolefin-based composite material includes the following steps:

[0049] (1) Preparation of active expanded vermiculite powder: Weigh a certain amount of expanded vermiculite and put it in a vacuum drying oven, dry it at 90-100°C for 2-4 hours to constant weight, take it out for use; prepare according to the mass ratio of 2:3:1 Stir the mixed solution of silane coupling agent, ethanol and cetyltrimethylammonium bromide at a high speed and let it stand for use; weigh the dried expanded vermiculite and the prepared active solvent according to the mass ratio of 1:2 and put them into Stir in the mixer at a constant temperature of 80-90°C for 6-8 hours, then discharge, cool to room temperature a...

Embodiment 1

[0060] A polyolefin-based composite material comprising the following raw materials: 55 parts of high-density polyethylene with a melt mass flow rate of 0.1g / min (190°C, 2.16kg); 10 parts of low-density polyethylene ; 40 parts of active expanded vermiculite powder; 30 parts of chopped glass fiber; 10 parts of nano-calcium carbonate; 10 parts of nano-silica; 20 parts of wollastonite fiber; 8 parts of magnesium oxide; 4 parts of polytetrafluoro powder; 2 parts of azodicarbonamide; 1 part of sodium bicarbonate; 3 parts of expanded graphite; 0.5 parts of carbon nanotubes; Mix 3 parts of bisstearic acid amide (EBS or TAF) and polyethylene wax at 1:2:4:2; compound phosphite antioxidant 168 and pentaerythritol ester antioxidant 1010 at 1:2 With 0.8 parts of antioxidant; 3 parts of maleic anhydride grafted polyethylene; organosiloxane coupling agent, titanate coupling agent, aluminate coupling agent and silicone oil at 4:1:0.5: 5. 0.8 parts of compound hyperdisperse coating agent; 2 ...

Embodiment 2

[0062]A polyolefin-based composite material comprising the following raw materials: 45 parts of high-density polyethylene with a melt mass flow rate of 0.1g / min (190°C, 2.16kg); 20 parts of low-density polyethylene ; 40 parts of active expanded vermiculite powder; 30 parts of chopped glass fiber; 10 parts of nano-calcium carbonate; 10 parts of nano-silica; 20 parts of wollastonite fiber; 8 parts of magnesium oxide; 4 parts of polytetrafluoro powder; 2 parts of azodicarbonamide; 1 part of sodium bicarbonate; 3 parts of expanded graphite; 0.5 parts of carbon nanotubes; Mix 3 parts of bisstearic acid amide (EBS or TAF) and polyethylene wax according to 1:2:4:2; compound phosphite antioxidant 168 and pentaerythritol ester antioxidant 1010 according to 1:2 With 0.8 parts of antioxidant; 3 parts of maleic anhydride grafted polyethylene; organosiloxane coupling agent, titanate coupling agent, aluminate coupling agent and silicone oil at 4:1:0.5: 5. 0.8 parts of compound super-coatin...

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Abstract

The invention provides a polyolefin-based composite material and a preparation method thereof, wherein the polyolefin-based composite material comprises the following raw materials: a polyolefin-basedresin, active expanded vermiculite micro-powder, a glass fiber reinforced system, a nanometer inorganic mineral filling system, a halogen-free flame-retardant smoke-suppressing anti-dripping system,a foaming agent system, an antistatic agent system, a lubricating agent, a thermal oxygen stabilizer system, an interface compatilizer, a super-dispersed coating agent and an auxiliary material. The polyolefin-based composite material of the invention has advantages of low density, vibration and noise reduction, high impact resistance, high pull resistance, flame retardance, static resistance, thermo-oxidative aging resistance, corrosion resistance and the like.

Description

technical field [0001] The invention relates to the technical field of extrusion molding of thermoplastic composite materials, in particular to a polyolefin-based composite material and a preparation method thereof. Background technique [0002] Thermoplastic composite materials are widely used in automobiles, rail transit, aerospace, Electrical and electronic, machinery, construction and other industries. Applications in automobiles include car bumpers, fenders, seats, instrument panels, etc.; aerospace applications include aircraft fuselages, wings, interior parts, rocket and missile engine casings, missile ammunition boxes, nozzles, launchers, etc. Tubes, radomes and pressure vessels, etc.; used in the manufacture of watch cases, junction boxes, TV back covers, fan blades, etc. in electrical and electronic aspects; in terms of machinery and construction, due to its corrosion resistance and other advantages, it will gradually replace the application of some metal material...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L27/18C08L51/06C08L83/04C08K13/04C08K7/14C08K9/10C08K3/02C08K5/3492C08K7/24
CPCC08L23/06C08L2201/02C08L2201/04C08L2201/08C08K2003/026C08L27/18C08L51/06C08L83/04C08K13/04C08K7/14C08K9/10C08K3/02C08K5/3492C08K7/24
Inventor 张用兵王彦辉张兴刚张锐涛魏凯耀
Owner 洛阳双瑞橡塑科技有限公司
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