Polyethylene-polyolefin elastomer composite material for rotational molding of pickleballs and preparation method of polyethylene-polyolefin elastomer composite material

A polyolefin elastomer, rotational molding technology, applied in the field of pickle ball rotational molding polyethylene-polyolefin elastomer composite materials, can solve the problems of the pickle ball's poor impact resistance, inability to rebound, deformation, etc. Achieve the effect of realizing industrialized operation and simple preparation method

Active Publication Date: 2019-05-10
ZHEJIANG ROTOUN PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The impact resistance of the pickleball on the market has not been very good. It begins to deform after being hit less than 2000 times and cannot bounce back.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take polyethylene (density 0.917g / cm 3 , melt flow rate [190°C, 2.16Kg] is 1.82g / 10min), polyolefin elastomer elastomer (density 0.902g / cm 3 , melt flow rate is 23.06g / 10min), antioxidant AT10, antioxidant AT168, ultraviolet absorber UV-531, according to the total mass fraction is 100 parts, each raw material component mass ratio is polyethylene: polyolefin Elastomer Elastomer: antioxidant AT10: antioxidant AT168: ultraviolet absorber UV-531 = 89.68: 9.97: 0.05: 0.10: 0.20.

[0029] Add polyethylene, polyolefin elastomer elasticity, antioxidant AT10, antioxidant AT168, and ultraviolet absorber UV-531 into the mixer, and the mixing time is 4 minutes; melt and blend the mixed materials with a twin-screw extruder, extrude Pelletization and extrusion process parameters: melt temperature is 185°C, screw speed is 280rpm; finally, the granulated particles are ground with a plastic mill, milling process parameters: grinding plate temperature is 75°C, grinding plate speed is 28...

Embodiment 2

[0032] Take polyethylene (density 0.917g / cm 3 , melt flow rate [190°C, 2.16Kg] is 1.82g / 10min), polyolefin elastomer elastomer (density 0.902g / cm 3 , melt flow rate is 23.06g / 10min), antioxidant AT10, antioxidant AT168, ultraviolet absorber UV-531, according to the total mass fraction is 100 parts, each raw material component mass ratio is polyethylene: polyolefin Elastomer Elastomer: antioxidant AT10: antioxidant AT168: ultraviolet absorber UV-531 = 79.72: 19.93: 0.05: 0.10: 0.20.

[0033] Add polyethylene, polyolefin elastomer elasticity, antioxidant AT10, antioxidant AT168, and ultraviolet absorber UV-531 into the mixer, and the mixing time is 3 minutes; melt and blend the mixed materials with a twin-screw extruder, extrude Pelletization and extrusion process parameters: melt temperature is 200°C, screw speed is 350rpm; finally, the granulated particles are ground with a plastic mill, milling process parameters: grinding plate temperature is 75°C, grinding plate speed is 2...

Embodiment 3

[0036] Take polyethylene (density 0.917g / cm 3 , melt flow rate [190°C, 2.16Kg] is 1.82g / 10min), polyolefin elastomer elastomer (density 0.902g / cm 3 , melt flow rate is 23.06g / 10min), antioxidant AT10, antioxidant AT168, ultraviolet absorber UV-531, according to the total mass fraction is 100 parts, each raw material component mass ratio is polyethylene: polyolefin Elastomer Elastomer: antioxidant AT10: antioxidant AT168: ultraviolet absorber UV-531 = 69.76: 29.90: 0.05: 0.10: 0.28.

[0037] Add polyethylene, polyolefin elastomer elasticity, antioxidant AT10, antioxidant AT168, and ultraviolet absorber UV-531 into the mixer, and the mixing time is 5 minutes; melt and blend the mixed materials with a twin-screw extruder, extrude Granulation and extrusion process parameters: melt temperature is 205°C, screw speed is 420rpm; finally, the granulated particles are ground with a plastic mill, milling process parameters: grinding plate temperature is 75°C, grinding plate speed is 280...

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Abstract

The invention relates to a polyethylene-polyolefin elastomer composite material for rotational molding of pickleballs and a preparation method of the polyethylene-polyolefin elastomer composite material, in particular to the polyethylene-polyolefin elastomer composite material for rotational molding of the pickleballs. The polyethylene-polyolefin elastomer composite material is prepared from, by mass, 38.34-93.5% of polyethylene, 6.28-60.4% of polyolefin elastomer, 0.12-0.66% of an antioxidant and 0.10-0.60% of an anti-ultraviolet agent by steps of mixing, melt blending, extruding granulationand grinding. The polyethylene-polyolefin elastomer composite material prepared according to the method can be used for rotational molding of the pickleballs, and the pickleballs are capable of withstanding batting for 3000 times.

Description

technical field [0001] The invention relates to a polyethylene-polyolefin elastomer composite material for rotomolding a pickleball, in particular to a polyethylene material which is resistant to hitting a pickleball for 3000 times and is suitable for a rotomolding production process and a preparation method thereof. technical background [0002] Rotational molding is a plastic processing method that uses a rotating mold for processing. The processing process is to put plastic powder or slurry into the mold, and the closed mold is rotated or shaken on the equipment, and the mold is heated by an open flame or hot air. External heating, the plastic powder or slurry is turned and flowed inside the mold under the heated state. After the temperature reaches the softening point, it is gradually coated on the inner surface of the mold, melted and condensed. The mold is placed in the natural environment or passed through water, After cooling by media such as fog and wind, the mold i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/02C08K5/134C08K5/526C08K5/132
Inventor 陈叶茹唐宇航温原
Owner ZHEJIANG ROTOUN PLASTIC TECH
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