Polymer Extruder Nanoparticle Coating for Composite Manufacturing

Solution Overview

Problem

The production of polymer nanocomposites (PNCs) is costly and complex due to the challenges in effectively integrating nanoparticles into polymer matrices, which limits their widespread commercial application despite their enhanced mechanical and chemical properties.

Innovation Solution

A polymer extruder apparatus is used to coat nanoparticles onto raw materials by injecting them into a die where shear stress aligns the nanoparticles, forming a composite material with improved properties, such as enhanced mechanical strength and thermal conductivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If nanoparticles are incorporated into polymer matrices to enhance mechanical and chemical properties, then the material performance is improved, but the production cost and process complexity increase

Engineering Contradiction:

Improvemechanical strengthVSAvoidprocess complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-coating nanoparticles onto carrier particles before incorporation into the polymer matrix. This pre-preparation step simplifies the overall manufacturing process by ensuring uniform nanoparticle distribution and reducing the complexity of direct nanoparticle-matrix integration, thereby resolving the contradiction between enhanced mechanical strength and process complexity

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses carrier particles as intermediaries to facilitate nanoparticle incorporation into the polymer matrix. These carrier particles serve as a mediating structure that simplifies the integration process while maintaining the enhanced mechanical properties provided by the nanoparticles, thus resolving the technical contradiction

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If nanoparticles are incorporated into polymer matrices to enhance chemical resistance, then the barrier properties are improved, but the production cost increases

Engineering Contradiction:

Improvebarrier propertiesVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies preliminary action by pre-coating nanoparticles onto carrier particles before incorporation into the polymer matrix. This pre-preparation step simplifies the overall manufacturing process by ensuring uniform nanoparticle distribution and reducing the complexity of direct nanoparticle-matrix integration, thereby resolving the contradiction between enhanced mechanical strength and process complexity

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses carrier particles as intermediaries to facilitate nanoparticle incorporation into the polymer matrix. These carrier particles serve as a mediating structure that simplifies the integration process while maintaining the enhanced mechanical properties provided by the nanoparticles, thus resolving the technical contradiction

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method enables the efficient production of PNCs with aligned nanoparticles, enhancing mechanical and thermal properties while simplifying the manufacturing process, making them more viable for commercial use.

Implementation Method 1

injecting them into a die where shear stress aligns the nanoparticles

Methodology Applied

Scientific EffectShear stress: Shear Stress

Data Source

PatentUS8501064B2Manufacturing nanocomposites

Publication Date: 2013.08.06 SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

AI summary

Techniques for preparing PNCs are provided. In one embodiment, a polymer extruding device may include a barrel configured to accommodate a composite material, a shaft rotatably disposed in the barrel, and a motor coupled to the shaft and configured to rotate the shaft, thereby moving the composite material. The polymer extruding device may further include a die including one or more injectors configured to inject nano particles into the die to cause shear stress to be exerted to the composite material, thereby forming a layer of the nano particles on a surface of the composite material.