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Composite material for preparing infrared barrier polyester film and preparation method thereof

A composite material and polyester film technology, which is applied in the field of composite materials and their preparation, can solve the problems of difficult to meet the actual needs of weather resistance, difficulty in obtaining flatness products, complicated application process, etc., to achieve good infrared blocking effect and reduce blur Effect of fogging and simplification of film forming process

Inactive Publication Date: 2013-12-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the following deficiencies were also highlighted in the process of use: first, the weather resistance performance is difficult to meet the actual needs; second, the later application process is more complicated; third, it is not easy to obtain products with high flatness by coating; Fourth, the loss caused by the complex process directly increases the cost of the product; directly mixing the nano-ceramic dispersion with the hot melt of polyester also has a lot of inhomogeneity

Method used

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  • Composite material for preparing infrared barrier polyester film and preparation method thereof
  • Composite material for preparing infrared barrier polyester film and preparation method thereof
  • Composite material for preparing infrared barrier polyester film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 2

[0030] Step 1: Put 25 kg of ethylene glycol into a 50-liter reactor 1, add 0.1 kg of titanate coupling agent isopropyl tris(dioctyl pyrophosphate acyloxy) titanate, and then Add 1.5 kg of nano-titanium nitride powder, control the temperature of the reactor at 100°C, stir for 30 minutes with a high-shear machine at 3000 rpm, put it into a sand mill after processing, and add 1.5 kg Hydroxyl-containing acrylic resin was ground for 24 hours at a speed of 1000 rpm to obtain a nano-ceramic ethylene glycol dispersion and reserved for later use;

[0031] Step 2: Take 30 kilograms of dimethyl terephthalate and put it into a 100-liter reactor 2 with a cooling and reflux function, add the nano-ceramic ethylene glycol dispersion prepared in Step 1 into the reactor 2, and add antimony catalyst 0.5 liters. 008 kg, add 20 kg of ethylene glycol. Seal the reactor, fill it with inert gas nitrogen, heat to 160°C, heat and mix for about 30 minutes, then raise the temperature of the reactor to 22...

Embodiment 4

[0038]Step 1: Take 25 kg of ethylene glycol and put it into a 50-liter reactor 1, add 0.15 kg of titanate coupling agent isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanium acid ester, then add 1 kg of ITO powder and 0.5 kg of AZO, control the temperature of the reactor at 100 ° C, stir with a high shear machine at 3000 rpm for 30 minutes, and put it into a sand mill after processing. Add 2 kilograms of carboxyl-containing acrylic resins, grind for 24 hours at a speed of 1000 rpm / min to obtain a nanoceramic ethylene glycol dispersion and keep it for later use;

[0039] Step 2: Get 30 kilograms of dimethyl terephthalate and put into 100 liters of reactor 2 with cooling and reflux function, add the nano ceramic ethylene glycol dispersion prepared in step 1 to reactor 2, add tin oxide catalyst 0 .02 kg, add 20 kg of ethylene glycol. Seal the reactor, fill it with inert gas nitrogen, heat to 160°C, heat, stir and mix for about 30 minutes, then raise the temperature of...

Embodiment 5

[0042] Step 1: Put 25 kg of ethylene glycol into a 50-liter reactor 1, add 0.08 kg of silane coupling agent 3-methacryloxypropyltrimethoxysilane), and then add 1 kg of nano Titanium nitride and 0.5 kg of nano-lanthanum hexaboride powder mixture, the temperature of the reaction kettle is controlled at 100 ° C, stirred with a high shear machine at 3000 rpm for 30 minutes, and put into a sand mill after processing. Add 1 kg of carboxyl-containing vinyl resin, grind at a speed of 900 rpm for 24 hours to obtain a nano ceramic ethylene glycol dispersion and reserve it for subsequent use;

[0043] Step 2: Take 30 kilograms of dimethyl terephthalate and put it into a 100-liter reactor 2 with a cooling and reflux function, add the nano-ceramic ethylene glycol dispersion prepared in Step 1 into the reactor 2, and add antimony catalyst 0.5 liters. 005 kg, add 20 kg of ethylene glycol. Seal the reactor, fill it with inert gas nitrogen, heat to 160°C, heat, stir and mix for about 30 minut...

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Abstract

The invention provides a composite material for preparing an infrared barrier polyester film and a preparation method of the composite material. The composite material is prepared from the raw materials: dimethyl terephthalate, nano ceramic powder, a surface treating agent, ground resin, a catalyst and ethylene glycol. The polymer organic-inorganic composite material is prepared by surface treatment, grinding and dispersing, mixing at high speed and high temperature, polymerization and other links. The polyester film prepared from the composite material has the thickness of 23-75mum, has the visible light transmittance about 70%, forms at least 55% infrared barrier effect within the range of infrared spectrum 780-2500nm covered by solar spectrum, and can realize more than 75% infrared barrier effect in the infrared band of 1400-2500nm.

Description

technical field [0001] The invention relates to a composite material for preparing an infrared-blocking polyester film and a preparation method thereof. Background technique [0002] With the wide application of nanomaterials in the field of glass. Automotive and building insulation film products continue to emerge. Polyethylene terephthalate film (PET film) is widely used in the field of heat insulation film as the main carrier material of heat insulation film. However, after consulting a large number of relevant technical materials, the method used is often achieved by coating on a transparent polyester film base material, or directly mixing the dispersion of nano-ceramic oxide with polyethylene terephthalate The hot melt is mechanically mixed. [0003] Although the coating process is a relatively simple technical implementation. However, the following deficiencies were also highlighted in the process of use: first, the weather resistance performance is difficult to me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/183C08G63/78C08K9/06C08K9/04C08K3/22C08K3/28C08K3/38C08L67/02
Inventor 陈楚伟陈晓青
Owner CENT SOUTH UNIV
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