Thermal insulation TPU thin film for automobile film pasting and preparation method thereof

A technology for car sticking film and film, which is applied in the field of thermal insulation TPU film and its preparation to achieve the effects of improving printing performance, being easy to print and applying adhesives, and improving surface tension

Inactive Publication Date: 2015-11-11
SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] TPU is a new type of organic polymer synthetic material, which has various excellent properties and is widely used.

Method used

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  • Thermal insulation TPU thin film for automobile film pasting and preparation method thereof
  • Thermal insulation TPU thin film for automobile film pasting and preparation method thereof
  • Thermal insulation TPU thin film for automobile film pasting and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The present embodiment adopts following method to prepare TPU film:

[0039] (1) Composition of raw materials:

[0040]

[0041] In TPU particles, its raw material components include 45% diisocyanate, 1% chain extender, 35% polymer polyol, 5% cycloalkyl imidazoline and 4% tetrahydrophthalimide by mass percentage .

[0042] (2) Preparation method:

[0043] ①Vacuumize and dehydrate the raw materials of each component in (1) at 90°C, and the time for the vacuum dehydration is 1.5h;

[0044] ② Stir and mix the raw materials after vacuum dehydration, and then extrude them with a casting extruder. The barrel temperature of the casting extruder is 160°C, the filter screen temperature is 180°C, and the elbow temperature is 180°C. The temperature of the die head was 190° C., and the heat-insulating TPU film for automobile film was obtained.

Embodiment 2

[0046] The present embodiment adopts following method to prepare TPU film:

[0047] (1) Composition of raw materials:

[0048]

[0049] In TPU particles, its raw material components include 45% diisocyanate, 1% chain extender, 35% polymer polyol, 5% cycloalkyl imidazoline and 4% tetrahydrophthalimide by mass percentage .

[0050] (2) Preparation method:

[0051] ①The raw materials of each component in (1) are vacuum dehydrated at 120°C, and the time of the vacuum dehydration is 4.5h;

[0052] ② Stir and mix the raw materials after vacuum dehydration, and then extrude them with a casting extruder. The temperature of the barrel of the casting extruder is 250°C, the temperature of the filter screen is 240°C, and the temperature of the elbow is 240°C. The temperature of the die head was 210° C., and the heat-insulating TPU film for automobile film was obtained.

Embodiment 3

[0054] The present embodiment adopts following method to prepare TPU film:

[0055] (1) Composition of raw materials:

[0056]

[0057] In TPU particles, its raw material components include 45% diisocyanate, 1% chain extender, 35% polymer polyol, 5% cycloalkyl imidazoline and 4% tetrahydrophthalimide by mass percentage .

[0058] (2) Preparation method:

[0059] ①Vacuumize and dehydrate the raw materials of each component in (1) at 105° C., and the time for the vacuum dehydration is 3 hours;

[0060] ② Stir and mix the raw materials after vacuum dehydration, and then extrude them with a casting extruder. The temperature of the barrel of the casting extruder is 205°C, the temperature of the filter screen is 210°C, and the temperature of the elbow is 210°C. The temperature of the die head is 200° C., and the heat-insulating TPU film for automobile film is obtained.

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Abstract

The invention relates to a thermal insulation TPU thin film for automobile film pasting and a preparation method thereof. The TPU thin film mainly comprises, by weight, 25-45 parts of TPU particles, 2.8-3.6 parts of indium and antimony oxide and/or tin and antimony oxide, 1.2-1.4 parts of zinc and aluminum oxide and/or zinc and gallium oxide, 3.4-5.8 parts of phenol and 0.3-0.7 part of defoaming agents. The preparation method includes the steps that firstly, the various raw materials are vacuumized and dehydrated; secondly, the raw materials where vacuum dehydration is performed are stirred and mixed and then extruded and formed through a tape-casting extruding machine, and the thermal insulation TPU thin film used for automobile film pasting is obtained. The light transmittance, the ultraviolet ray obstructing rate and the infrared ray obstructing rate of the TPU thin film are high, and the TPU thin film has lasting thermal insulation performance and an anti-dazzling effect. The thermal insulation TPU thin film is large in surface tension, resistant to scratch and abrasion, moderate in thickness, safe and capable of saving energy.

Description

technical field [0001] The invention relates to the technical field of synthetic materials, in particular to a TPU film and a preparation method thereof, in particular to a heat-insulating TPU film for automobile film and a preparation method thereof. Background technique [0002] At present, there are three main types of automotive heat insulation diaphragms on the market, namely metal heat insulation, ceramic heat insulation and optical heat insulation. Among them, the metal heat insulation mainly reflects the infrared, ultraviolet and visible light in the sunlight through the metal layer; the ceramic heat insulation mainly absorbs solar energy through nano-scale ceramics to delay the solar energy from entering the car; the optical film adopts the method of refraction to block Infrared and Ultraviolet. Generally, the metal heat insulation film has poor transparency and poor durability, and the metal layer is easy to fall off; while ceramic and optical heat insulation film...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L51/06C08L63/00C08K3/22C08K5/13B29C47/92B29L7/00B29C48/92
Inventor 何建雄王一良
Owner SUZHOU XIONGLIN NEW MATERIAL SCI & TECH CO LTD
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