Optical function modified polyurethane composite paint and preparation method thereof
A composite coating and polyurethane technology, which is applied in the field of polyurethane materials, can solve problems such as insufficient surface gloss and luster, difficulty in meeting market demand, and affecting the health of users, so as to achieve improved gloss and luster and great market competitiveness. , The effect of low equipment requirements
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Embodiment 1
[0022] A light function modified polyurethane composite coating, comprising the following components (calculated by mass percentage): 25% polyurethane, 12% urea-formaldehyde resin, 8% cellulose acetate, 4.2% polyvinyl butyral, 3.6% ethanol, Anhydrous ether 2.7%, fumed silica 1.5%, dioctyl phthalate 1.2%, luminescent powder 6%, dispersant 2%, precipitant as the balance.
[0023] Further, the luminescent powder is composed of 45% silver powder and 55% aluminum powder, the precipitation agent is ammonium bicarbonate, and the dispersant is copper stearate.
[0024] A light function modified polyurethane composite coating and a preparation method thereof, comprising the following steps:
[0025] Step 1: Prepare materials according to the above components;
[0026] Step 2: Weigh polyvinyl butyral and anhydrous ether at a molar ratio of 1:2:1 to react at 110°C to obtain a prepolymer, and filter the prepolymer through a centrifugal filter for 3 Minutes, get filtrate and heat to 30 d...
Embodiment 2
[0034] A light function modified polyurethane composite coating, comprising the following components (calculated by mass percentage): 27% polyurethane, 14% urea-formaldehyde resin, 9% cellulose acetate, 4.4% polyvinyl butyral, 3.8% ethanol, Anhydrous ether 2.9%, fumed silica 1.8%, dioctyl phthalate 1.7%, luminescent powder 8%, dispersant 3%, precipitant as the balance.
[0035] Further, the luminescent powder is composed of 45% silver powder and 55% aluminum powder, the precipitation agent is ammonium bicarbonate, and the dispersant is copper stearate.
[0036] A light function modified polyurethane composite coating and a preparation method thereof, comprising the following steps:
[0037] Step 1: Prepare materials according to the above components;
[0038] Step 2: Weigh polyvinyl butyral and anhydrous ether at a molar ratio of 1:2:1 to react at 120°C to obtain a prepolymer, and filter the prepolymer through a centrifugal filter 4 Minutes, get filtrate and heat to 35 degre...
Embodiment 3
[0046] A light function modified polyurethane composite coating, comprising the following components (calculated by mass percentage): 28% polyurethane, 16% urea-formaldehyde resin, 10% cellulose acetate, 4.6% polyvinyl butyral, 4% ethanol, Anhydrous ether 3.3%, fumed silica 2.3%, dioctyl phthalate 2.1%, luminous powder 10%, dispersant 4%, precipitant as the balance.
[0047] Further, the luminescent powder is composed of 45% silver powder and 55% aluminum powder, the precipitation agent is ammonium bicarbonate, and the dispersant is copper stearate.
[0048] A light function modified polyurethane composite coating and a preparation method thereof, comprising the following steps:
[0049] Step 1: Prepare materials according to the composition of the above components;
[0050] Step 2: Weigh polyvinyl butyral and anhydrous ether at a molar ratio of 1:2:1 to react at 145°C to obtain a prepolymer, and filter the prepolymer through a centrifugal filter for 5 Minutes, get filtrate ...
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