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An antistatic polypropylene-based composite material and its preparation method and application

A polypropylene-based, composite material technology, applied in the field of polymer composite materials, can solve the problems of unbalanced antistatic and mechanical properties, poor antistatic effect, insufficient mechanical properties, etc., to achieve improved antistatic effect, good interface phase Capacitance, the effect of improving mechanical properties

Active Publication Date: 2022-07-12
NINGBO BOLILONG COMPOSITE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems of poor antistatic performance and inability to balance antistatic and mechanical properties in polypropylene-based composite materials in the prior art, the present invention provides an antistatic polypropylene-based composite material and its preparation method and application
[0006] The antistatic polypropylene-based composite material of the present invention can solve the technical problems of poor antistatic effect and insufficient mechanical properties of the polypropylene-based composite material existing in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Preparation of dandelion-shaped zinc oxide modified powder

[0038] The dandelion-shaped zinc oxide powder was added to the modification container, and the modification liquid was added at the same time, heated to 55 ° C and stirred for 3.5 h for surface modification to obtain the dandelion-shaped zinc oxide modified powder, which was used in the following Examples 2-4 use. Wherein, the weight ratio of the dandelion-shaped zinc oxide powder and the modified liquid is 10:1. The modified liquid includes ethanol, γ-aminopropyltriethoxysilane, PEO-PPO-PEO block copolymer, ethylene glycol, and polyoxyethylene stearate; the ratio is 10:1:0.2 :0.5:0.1.

Embodiment 2

[0039] Example 2: Preparation of antistatic polypropylene-based composite material

[0040] Step 1: Prepare materials according to the following proportions, 100 parts of polypropylene, 20 parts of dandelion-shaped zinc oxide modified powder, 20 parts of glass fiber, 5 parts of hydrophobic silica, tetra[beta-(3,5-di-tert-butyl] 1 part of -4-hydroxyphenyl) propionate] pentaerythritol ester, 1 part of maleic anhydride grafted polypropylene, 1 part of N,N'-ethylenebisstearamide. Mix polypropylene, dandelion-shaped zinc oxide modified powder, hydrophobic silica, antioxidant, compatibilizer, and lubricant evenly, heat to melt and mix in a twin-screw extruder, and extrude polypropylene melt to In the fiber dipping tank; wherein the temperature of the polypropylene melt was 220°C.

[0041] Step 2: Preheat the glass fiber to 220°C and then send it to the fiber dipping tank, fully infiltrate the polypropylene melt in the dipping tank for 3 minutes, then cool and cut into pellets. The ...

Embodiment 3

[0042] Example 3: Preparation of antistatic polypropylene-based composite material

[0043] Step 1: Prepare materials according to the following proportions, 50 parts of polypropylene, 5 parts of dandelion-shaped zinc oxide modified powder, 20 parts of glass fiber, 2 parts of hydrophobic silica, tetra[beta-(3,5-di-tert-butyl] 1 part of -4-hydroxyphenyl) propionate] pentaerythritol ester, 1 part of maleic anhydride grafted polypropylene, 1 part of N,N'-ethylenebisstearamide. Mix polypropylene, dandelion-shaped zinc oxide modified powder, hydrophobic silica, antioxidant, compatibilizer, and lubricant evenly, heat to melt and mix in a twin-screw extruder, and extrude polypropylene melt to In the fiber dipping tank; wherein the temperature of the polypropylene melt was 220°C.

[0044] Step 2: Preheat the glass fiber to 220°C and then send it to the fiber dipping tank, fully infiltrate the polypropylene melt in the dipping tank for 3 minutes, then cool and cut into pellets. The le...

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Abstract

The invention discloses an antistatic polypropylene-based composite material as well as a preparation method and application thereof. The dandelion-shaped zinc oxide modified powder is obtained by surface hydrophobic modification of dandelion-shaped zinc oxide powder, and the dandelion-shaped zinc oxide modified powder is obtained. The surface of the body can obtain better interface compatibility and lower agglomeration effect with the polypropylene matrix, and the protruding structures of different dandelion-shaped zinc oxide powders can contact each other in the resin matrix, which improves the antistatic effect; the present invention The primary hydrophobic nano-silica, glass fiber and dandelion-like zinc oxide powder synergistically improve the mechanical properties of polypropylene-based composites, and improve the polypropylene-based composite materials using dandelion-like zinc oxide powder as antistatic agent. The application range and service life of the composite material; the surface resistivity of the composite material is 8.5*10 9 ‑9.5*10 11 Ω, the tensile strength is 70‑85Mpa, and the elongation at break is 20‑30%. It is used as an antistatic structural part.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, in particular to the field of polypropylene-based composite materials, and particularly relates to an antistatic polypropylene-based composite material and a preparation method and application thereof. Background technique [0002] Polypropylene (PP) is a common plastic engineering material. Polypropylene has good processing performance, excellent corrosion resistance and mechanical properties, and is widely used as a structural component. However, polypropylene has a higher surface resistivity (10 16 -10 18 Ω), the surface of polypropylene-based structural parts is easy to accumulate charge, which is electrostatically charged, which can adsorb particles in the air and affect the appearance and practical performance of polypropylene-based structural parts. [0003] In the prior art, CN101759921A adds conductive fibers to polypropylene to reduce the surface resistivity of polypropylen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L51/06C08L23/14C08K9/06C08K7/00C08K9/04C08K7/26C08K7/14
Inventor 李志刚邢凯铭赵贵昱
Owner NINGBO BOLILONG COMPOSITE MATERIAL TECH
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