TPU (Thermoplastic Polyurethane Elastomer) material and preparation method thereof

A raw material, diisocyanate technology, applied in the field of TPU material and its preparation, can solve the problems of insufficient mechanical properties, wear resistance and rigidity, cannot be reused, low operation efficiency, etc., achieve excellent mechanical properties, reduce high cost, resist Low wear effect

Inactive Publication Date: 2016-03-09
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its synthetic products are all cast polyurethane elastomers, which are thermosetting polyurethane materials. When used to process casters or bushings, there are problems such as low operating efficiency, high scrap rate, and inability to be reused.
The soft segment of polyurethane elastomer uses pure PTMG as raw material, and the mechanical properties, wear resistance and rigidity of the product are insufficient

Method used

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  • TPU (Thermoplastic Polyurethane Elastomer) material and preparation method thereof
  • TPU (Thermoplastic Polyurethane Elastomer) material and preparation method thereof
  • TPU (Thermoplastic Polyurethane Elastomer) material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw material composition is as follows, by weight percentage:

[0026]

[0027] Preparation process: Weigh the raw materials of each component according to the weight percentage, and add the accurately weighed polybutylene adipate diol, oleic acid amide, 1010, PDP, R-170S and catalyst to the In reactor A, set the temperature at 100°C; place MDI-100 in reactor B, set the temperature at 60°C; place 1,4-BG in reactor C, set the temperature at 45°C; The temperature of the reactor is stable. Through the metering and filling system, the raw material components in the A / B / C reactor are mixed and injected into the feeding port of the twin-screw reactor through the high-speed rotating mixing head. The speed of the mixing head is set at 5000rpm / min, and the extrusion The temperature of the machine is 150-200°C, and the screw speed is set at 220rpm / min, so that the mixed material is uniformly reacted and plasticized in the twin-screw barrel, and is cut into oval particles with ...

Embodiment 2

[0029] Raw material composition is as follows, by weight percentage:

[0030]

[0031] Preparation process: Weigh the raw materials of each component by weight percentage, and accurately weigh polybutylene adipate diol, oleic acid amide, bisethylene stearic acid amide, 1010, PDP, SI-69 and catalyst Add it into A reactor equipped with mechanical stirring and thermometer, set the temperature at 100°C; place MDI-100 in B reactor, set the temperature at 60°C; place 1,4-BG in C reactor, The set temperature is 45°C; when the temperature of each reactor is stable, the raw material components in the A / B / C reactor are mixed and injected into the feeding port of the twin-screw reactor through the high-speed rotating mixing head through the metering perfusion system, and the speed of the mixing head is set 5000rpm / min, set extruder temperature to 145-200°C, set screw speed to 220rpm / min, so that the mixed material can be uniformly reacted and plasticized in the twin-screw barrel, and ...

Embodiment 3

[0033] Raw material composition is as follows, by weight percentage:

[0034]

[0035] Preparation process: Weigh the raw materials of each component by weight percentage, and accurately weigh polybutylene adipate diol, oleic acid amide, stearic acid amide, 1010, PDAP, R-170S, E-2203 and The catalyst is added to the A reactor equipped with mechanical stirring and thermometer, and the set temperature is 100°C; the MDI-100 is placed in the B reactor, and the set temperature is 60°C; the HQEE is placed in the C reactor, and the set temperature is 105°C; when the temperature of each reactor is stable, the raw material components in the A / B / C reactors are mixed and injected into the feeding port of the twin-screw reactor through the high-speed rotating mixing head through the metering perfusion system, and the speed of the mixing head is set at 5500rpm / min, set the temperature of the extruder to 145-195°C, set the screw speed to 220rpm / min, so that the mixed material can be uni...

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Abstract

The invention belongs to the technical field of TPU (Thermoplastic Polyurethane Elastomer), and in particular relates to a TPU material and a preparation method thereof. The TPU material is prepared from the following raw materials in percentage by weight: 44 to 56 percent of polymer polyol, 27 to 42 percent of diisocyanate, 11 to 16.5 percent of chain extender, 0.3 to 1 percent of wear-resistant fortifier, 0.3 to 0.5 percent of lubricating agent, 0.2 to 0.4 percent of antioxidant and 0.02 to 0.05 percent of catalyst. According to the preparation method provided by the invention, a continuous process is adopted, the quality of a product is stable, and a higher production efficiency is realized in comparison with that of a casting TPU; the polymer polyol is adopted as a raw material, the high cost of a PTMG type polyurethane material is reduced and meanwhile, the elastomer is endowed with good mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of polyurethane elastomers, and in particular relates to a TPU material and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) has high strength, high modulus and excellent mechanical properties due to its special soft and hard block copolymer structure. Compared with other elastomer materials, TPU has a wide range of hardness, and has better comprehensive performance in terms of wear resistance, elasticity and mechanical properties, so it has received more and more attention in the fields of casters, bushings or sieve plates. TPU is used in fields such as casters or bushings, which require good load-bearing capacity and rigidity, as well as good resilience and wear resistance. As the hardness of polyester TPU increases, the tensile strength, tear strength and rigidity of TPU will increase, but at the same time the elasticity and elongation at break of TPU...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/32C08G18/08C08K5/20
CPCC08G18/664C08G18/0895C08G18/4238C08K5/20
Inventor 陈海良陈淑海张宁宿金明
Owner SHANDONG INOV POLYURETHANE
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