Vehicle finish with polymer/inorganic composite nano-powder and preparing method thereof

An inorganic nano, automotive topcoat technology, used in devices for coating liquids on surfaces, polyester coatings, coatings, etc., can solve problems such as no discovery

Inactive Publication Date: 2003-11-19
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no discovery about the addition of nano-TiO 2 and nano-SiO 2 Reports on related patents of inorganic composite nanomaterials for automotive topcoats

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: The polymer / inorganic composite nano-powder automotive topcoat was prepared according to the following formula.

[0037] A component

[0038] Acrylic polyalkyd resin 48.0kg

[0039] Titanium dioxide 18.0kg

[0040] Nano TiO 2 The particle size is 30nm 1.0kg

[0041] Nano SiO 2 The particle size is 20nm 0.5kg

[0042] Nano ZnO particle size is 20nm 0.5kg

[0043] Silicon-based coupling agent 0.02kg

[0044] Additive 1.23kg

[0045] Xylene 10.0kg

[0046] B component

[0047] Aromatic isocyanate prepolymer 11.0kg

[0048] Xylene 9.0kg

Embodiment 2

[0049] Example 2: The polymer / inorganic composite nano-powder automotive topcoat was prepared according to the following formula.

[0050] A component

[0051] Amino resin 45.5kg

[0052] Titanium dioxide 18.5kg

[0053] Nano TiO 2 The particle size is 30nm 0.5kg

[0054] Nano SiO 2 The particle size is 20nm 0.5kg

[0055] Nano ZnO particle size is 20nm 0.5kg

[0056] Phthalate coupling agent 0.01kg

[0057] Additive 2.4kg

[0058] Butyl acetate 12.0kg

[0059] B component

[0060]Epoxy resin 10.0kg

[0061] Butyl acetate 10.0kg

Embodiment 3

[0062] Example 3: Prepare polymer / inorganic composite nano-powder automotive topcoat according to the following formula.

[0063] A component

[0064] Fiber resin 46.0kg

[0065] Titanium dioxide 18.0kg

[0066] Nano TiO 2 The particle size is 30nm 2.0kg

[0067] Nano SiO 2 The particle size is 20nm 1.5kg

[0068] Aluminate coupling agent 0.04kg

[0069] Additive 2.46kg

[0070] Thinner 10.0kg

[0071] B component

[0072] Aromatic isocyanate prepolymer 10.5kg

[0073] Ethylene glycol ether acetate 9.5kg

[0074] Preparation method of polymer / inorganic composite nano powder automotive topcoat:

[0075] 1. Preparation of slurry

[0076] (1) Weigh the ingredients of the formula components in each of the above-mentioned embodiments, and add a part of the polymer resin to the diluent and stir in the mixing kettle.

[0077] (2) Add nano powder, titanium dioxide and additives in sequence while stirring.

[0078] (3) Sand grinding with a sand mill for 30-50 minutes.

[0079] (4)...

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Abstract

A surface paint for car is prepared through diluting part of polymer resin with diluent while stirring, sequentially adding nano-class composite inorganic powder, titanium white powder and assistant while stirring, grinding, filtering, adding the rest of polymer resin, and high-speed stirring while adding solidifying agent and diluent. Its advantages are high anti-ageing performance and high hardness.

Description

1. Technical Field [0001] The invention relates to a polymer / inorganic composite nano powder automobile topcoat and a preparation method thereof. 2. Background technology [0002] The car finish is the ultimate expression of the car's appearance. The smoothness and gloss of the car surface give the car high-grade, stability, transparency and vividness, etc., which are directly related to the properties of the paint. The car is exposed to the air for a long time, so the car topcoat must have excellent anti-aging properties to be able to withstand the damage caused by natural changes such as long-term sunlight and wind and rain. It is inevitable that some collisions or friction events will occur during the driving of the car. Therefore, the car topcoat must also have excellent mechanical properties. [0003] Because nanoparticles have special properties such as surface effect, macroscopic quantum tunneling effect, interface effect and small size effect, nanomaterials have broad app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14C09D133/00C09D167/00
Inventor 黄婉霞涂铭旌吴健春严家振张波
Owner SICHUAN UNIV
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