Touch powdery coating and preparation method thereof
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A powder coating and tactile technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of low utilization rate, high production cost, and pollution of the environment by organic matter volatilization.
Inactive Publication Date: 2019-03-29
YANGZHOU JINCHEN CHEM
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[0003] The background of the development of tactile powder coatings comes from elastic tactile rubber paints. Due to the various construction techniques o
Method used
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preparation example Construction
[0028] A preparation method for touch powder coating, comprising the following steps:
[0029] S1 Weigh the polyester resin, curing agent, whitening agent, leveling agent, degassing agent, accelerator, filler, and pigment by weight, pour it into the pre-mixing tank, and mix thoroughly at a speed of 1500 rpm for 3 -5 minutes, get the premixed material;
[0030] S2 The pre-mixed material is added to the twin-screw extruder for extrusion;
[0031] S3 Extruded materials are cooled by pressing rollers, pressed into tablets, ground, sieved and packaged.
[0032] In the step S2, the twin-screw extrusion temperature is set at 80-110°C, the screw speed is 38-48HZ, and the feeding speed is 10-20HZ. The average particle size of the powder after sieving in step S3 is 30-40UM.
Embodiment 1
[0033] Embodiment 1, a kind of tactile powder coating, comprises the following components by weight:
[0034]
[0035] The resin is epoxy resin with a softening point of 88°C
[0036] The curing agent is an epoxy curing agent.
[0037] Process: The raw materials are weighed according to the formula, fully mixed by the pre-mixer at high speed, extruded by the extruder, cooled into pieces and crushed, then graded, ground and sieved by ACM.
Embodiment 2
[0038] Embodiment 2, a kind of tactile powder coating, comprises the following components by weight:
[0039]
[0040] The resin is a carboxyl-terminated polyester resin with an acid value of 28-33mgKOH / g and a viscosity of 3000-4000mPa.s
[0041] The curing agent is an acrylic matting resin. Take the reaction ratio with resin 2.7-3.0.
[0042] Process: The raw materials are weighed according to the formula, fully mixed by the pre-mixer at high speed, extruded by the extruder, cooled into pieces and crushed, then graded, ground and sieved by ACM.
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Abstract
The invention relates to a touch powdery coating and a preparation method thereof, relates to a powdery coating, and in particular, relates to the touch powdery coating and the preparation method thereof. The invention provides the touch powdery coating with low cost, easy long-distance transportation, simple operation, time saving, high efficiency, high utilization rate and no organic matter volatilization VOC, and a preparation method thereof. The touch powdery coating includes the following components in parts by weight: 60-90 parts of polyester resin, 4-10 parts of a curing agent, 0-20 parts of a whitening agent, 0.5-1 part of a leveling agent, 0.6-1 part of a degassing agent, 0.5-1 part of an accelerator, 5-35 parts of a filler, and 2-10 parts of a pigment. The special production technology is not needed to adopt, and the product can be prepared only from multiple raw materials through a conventional production and manufacturing processes. Because the finished product is powder, the finished product is easy to pack and transport for a long distance, and is long in storage time.
Description
technical field [0001] The invention relates to a powder coating, in particular to a tactile powder coating and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, the requirements for the appearance of daily necessities are getting higher and higher, especially for some parts that are often touched by hands, it is required to be sprayed with elasticity and smooth texture, such as handles of various items, MP3 casings, mouses, and mobile phone casings ﹑Umbrella handles, cups, hangers, etc., no longer require the kind of cold, rough, and blunt touch, but make people feel a soft and smooth feeling, so the tactile powder coating came into being. [0003] The background of the development of tactile powder coatings comes from elastic tactile rubber paints. Due to the various construction techniques of rubber paints, the production costs are high, a large amount of organic matter volatilizes and pollutes the environment, ...
Claims
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Application Information
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