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Polymer material with covering ice preventing function and integrated forming method thereof

A technology of polymer materials and molding methods, which can be applied to household appliances, other household appliances, household components, etc., can solve problems such as unstable performance, high cost, and many steps, and achieve good structural formability, simple operation, and microstructure evenly distributed effect

Active Publication Date: 2019-05-31
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a polymer material with anti-icing function and its integrated molding method to solve the problems of high cost, many steps and unstable performance in the preparation of composite materials with anti-icing function in the current technology

Method used

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  • Polymer material with covering ice preventing function and integrated forming method thereof
  • Polymer material with covering ice preventing function and integrated forming method thereof
  • Polymer material with covering ice preventing function and integrated forming method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A polymer material integrated molding method with anti-icing function, comprising the following steps:

[0037] (1) A closed 7075 aluminum alloy mold with a square pit array microstructure on the inner wall is prepared by a precision numerical control lathe, cleaned for standby, and pre-coated with a release agent;

[0038] (2) Cut the fiber cloth to a suitable shape, and then wrap the PVC foam core material to obtain a dry fiber prefabricated body; the fiber cloth is made of SW220 high-strength glass fiber, and the core material is made of PVC foam, with a size of 50mmx50mmx4mm;

[0039] (3) Mix resin, curing agent and low surface energy modifier heptadecafluorodecyltriethoxysilane FAS-17 at a mass ratio of 3:1:0.01 to obtain a liquid polymer mixture;

[0040] (4) Place the dry fiber prefabricated body in the closed metal mold; inject the liquid polymer mixture into the dry fiber prefabricated body after closing the mold, until the liquid colloid without bubbles flows ...

Embodiment 2

[0045] A polymer material integrated molding method with anti-icing function, comprising the following steps:

[0046] (1) A closed 7075 aluminum alloy mold with an inverted pyramid pit array microstructure on the inner wall is prepared on a precision numerical control lathe, cleaned for standby, and pre-coated with a release agent;

[0047] (2) Cut the fiber cloth to a suitable shape, and then wrap the PVC foam core material to obtain a dry fiber prefabricated body; the fiber cloth is made of T700SC-12000-50C high-strength carbon fiber material, and the high-strength carbon fiber material is pre-coated with epoxy resin slurry ;The core material is PVC foam, the size is 50mmx 50mmx4mm;

[0048] (3) Mix resin, curing agent and low surface energy modifier heptadecafluorodecyltriethoxysilane FAS-17 at a mass ratio of 3:1:0.01 to obtain a liquid polymer mixture;

[0049] (4) Place the dry fiber prefabricated body in the closed metal mold; inject the liquid polymer mixture into th...

Embodiment 3

[0054] A polymer material integrated molding method with anti-icing function, comprising the following steps:

[0055] (1) A closed 7075 aluminum alloy mold with a square pit array microstructure on the inner wall is prepared by a precision numerical control lathe, cleaned for standby, and pre-coated with a release agent;

[0056] (2) Cut the fiber cloth to a suitable shape, and then wrap the PVC foam core material to obtain a dry fiber prefabricated body; the fiber cloth is made of aramid fiber, and the core material is made of PVC foam, with a size of 50mmx 50mmx4mm;

[0057] (3) Mix resin, curing agent and low surface energy modifier heptadecafluorodecyltriethoxysilane FAS-17 at a mass ratio of 3:1:0.01 to obtain a liquid polymer mixture;

[0058] (4) Place the dry fiber prefabricated body in the closed metal mold; inject the liquid polymer mixture into the dry fiber prefabricated body after closing the mold, until the liquid colloid without bubbles flows out of the glue ou...

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Abstract

The invention discloses an integrated forming method of a polymer material with a covering ice preventing function. By designing the mold surface structure and adjusting the forming hot-pressing parameters of a composite material, integrated forming of a covering ice preventing function structure and a polymer-based material is achieved. The polymer material with the covering ice preventing function and the integrated forming method thereof have the following advantages that the two functions of preparation of the polymer-based material and integration of the covering ice preventing micro-structure on the material are finished at the same time; compared with the traditional technology, operation is simple, the structure forming property is good, and the micro-structure distribution is uniform; the prepared polymer material has the surface with the super-hydrophobicity to the liquid-state water, the freezing time of supercooling liquid drops is prolonged remarkably, and thus the supercooling liquid drops have enough time to leave the surface; and the ice adhesion strength is extremely low, the covering ice can be separated from the material surface under the action of natural wind force or gravity, and the polymer material can be used for covering parts, which are exposed in the extreme environment, on the outer surface of machine equipment and has the important practical significance to the ice preventing and removing technological development of a wind power machine and an airplane.

Description

technical field [0001] The invention belongs to the field of composite material processing technology and surface modification technology, and in particular relates to a polymer material with anti-icing function and an integrated molding method thereof. Background technique [0002] Polymer matrix composites generally refer to continuous fiber / short fiber reinforced resin matrix composites. The high strength, high modulus properties of the fiber make it an ideal carrier. The matrix material has good bonding performance, and the fibers are firmly bonded together. At the same time, the matrix can evenly distribute the load and transmit it to the fibers, allowing the fibers to bear compression and shear loads. The good combination between fiber and matrix shows their respective advantages, and can achieve the best structural design. It has the characteristics of light weight, high strength and high stiffness, and has been widely used in the fields of national defense and peopl...

Claims

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Application Information

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IPC IPC(8): B29C70/88B29L31/08B29L31/30
Inventor 沈一洲陶杰贾振峰朱春玲江家威吴正维
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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