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Rose scent type polyester powder coating and preparation method thereof

A technology of polyester powder and production method, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of not effectively improving labor productivity, restricting the application of powder coatings, and lengthening the production cycle, so as to improve the suitable The effect of coating performance and self-cleaning performance, low toxicity and low production cost

Inactive Publication Date: 2016-03-23
WUHU BAOYI AMUSEMENT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the curing conditions of the polyester / TGIC system are harsh: TGIC is toxic, the curing temperature is high (>200°C), the curing time is long (10-30min), and the high curing temperature makes its energy consumption high and the baking time is too long , directly lead to longer production cycle, and labor productivity cannot be effectively improved
At the same time, the harsh curing conditions make powder coatings can only be used on heat-resistant metal substrates, and are not suitable for heat-sensitive substrates such as wood, paper, and plastics, which seriously restricts the application of powder coatings and needs to be improved. Production process and method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A rose-scented polyester powder coating, made of the following raw materials in parts by weight: polyester resin 70, thermosetting acrylic resin 12, stainless steel fiber 4, attapulgite 18, zinc naphthenate 0.2, nano-titanium dioxide 1.9, rose essential oil 0.1, dilauryl thiodipropionate 2.3, polyvinyl alcohol 1.5, β-hydroxyalkylamide 4.8, pigment 7.5.

[0015] The preparation method of described a kind of rose fragrance type polyester powder coating, comprises the following steps:

[0016] (1) Stir and mix thermosetting acrylic resin and dilauryl thiodipropionate at 105-125°C, heat up to 160-170°C, stir and disperse at 200-300 rpm for 4-6 minutes, cool down to room temperature and add ring Zinc alkanoate ball milled for 1-2 hours to obtain a modified thermosetting acrylic resin;

[0017] (2) Disperse attapulgite in an aqueous solution with a mass concentration of 5-8% prepared by polyvinyl alcohol to obtain a suspension, place the suspension in a constant temperature ...

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PUM

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Abstract

The invention discloses a rose scent type polyester powder coating. According to the rose scent type polyester powder coating, beta-hydroxyalkylamide replaces a TGIC (triglycidyl isocyanurate) curing agent, has low toxicity and low curing temperature and is energy-saving and environment-friendly; attapulgite, nano-titanium dioxide and stainless steel fiber are grafted and modified, so that the dispersity of the polyester powder coating in polyester resin and the interface contact property are improved, the applicability and the self-cleaning performance of the coating are improved and the stain resistance is improved; modified thermosetting acrylic resin is added, the production process is simple, operation is simple and convenient, the mechanical performance of the powder coating is optimized, and the prepared powder coating has high strength, excellent weather resistance and lasting rose scent; besides, the powder coating is environment-friendly and is convenient to store and transport and very suitable for large-scale production, popularization and application, the production process is simple, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a rose-scented polyester powder coating and a preparation method thereof. Background technique [0002] Powder coating is a new type of solvent-free 100% solid powder coating. It has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. Thermosetting powder coating refers to the use of thermosetting resin as a film-forming substance, adding a curing agent for crosslinking reaction and heating to form an insoluble and infusible hard coating. Thermosetting powder coatings have good leveling properties and strong decorative properties, and the low molecular weight prepolymers can form network crosslinked macromolecules after curing, so the coatings have good corrosion resistance and mechanical properties. , so the development of thermosetting po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D133/00C09D129/04C09D5/03C09D7/12
CPCC09D167/00C08K2201/011C08L2205/03C09D5/03C09D7/61C09D7/63C09D7/65C09D7/70
Inventor 张庆
Owner WUHU BAOYI AMUSEMENT EQUIP