Method for preparing flexible polyurethane porous composite material

A technology of porous composite materials and soft polyurethane, which is applied in the field of preparation of soft polyurethane foam materials, can solve problems such as non-special outstanding performance and complicated preparation process, and achieve controllable tensile properties and resilience properties, simple process, Excellent performance and controllable effect

Inactive Publication Date: 2019-02-22
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this method is too complicated, and although it has dual functions, the performance of each function is not particularly outstanding

Method used

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  • Method for preparing flexible polyurethane porous composite material
  • Method for preparing flexible polyurethane porous composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 5g of negative ion powder into a flask with 45g of solvent toluene, ultrasonically disperse for 30min, raise the temperature to 80°C, add 0.75g of silane coupling agent KH550, and reflux and stir for 180min. The reaction liquid was cooled to room temperature, and the solid was obtained by suction filtration, dried in a constant temperature vacuum oven at 70°C, washed three times with absolute ethanol and acetone respectively, dried and ground to obtain the modified negative ion powder additive.

[0041] Take by weighing 60g polyoxypropylene trihydric alcohol (N330), 25g polyoxypropylene glycol (N210), 15g polyneopentyl adipate (PNA-2000), 1.2g modified negative ion powder additive, 1.03g Silicone defoamer DX-02-1, 1.02g of water, 1.0g of triethanolamine (TEOA), 0.16g of stannous octoate (T-9) were mixed together, and stirred at high speed to obtain component A.

[0042] Accurately weigh 45g of liquefied diphenylmethane diisocyanate (MDI) and keep it in a constant te...

Embodiment 2

[0047] Add 5g of negative ion powder into a flask with 45g of solvent toluene, ultrasonically disperse for 30min, raise the temperature to 90°C, add 1.0g of silane coupling agent KH560, and react under reflux for 120min. The reaction liquid was cooled to room temperature, and the solid was obtained by suction filtration, dried in a constant temperature vacuum oven at 70°C, washed three times with absolute ethanol and acetone respectively, dried and ground to obtain the modified negative ion powder additive.

[0048] Take by weighing 75g polyoxypropylene glycol (N220), 10g polyoxypropylene glycol (N210), 15g polyneopentyl adipate (PNA-2000), 2.4g modified negative ion powder additive, 1.03g Anti-sticking and slipping agent Silok-3300, 1.23g water and 0.05g bis(dimethylaminoethyl) ether (A-1), 0.6g triethanolamine (TEOA), 0.14g stannous octoate (T-9) mixed, Stir at high speed to obtain component A evenly.

[0049] Accurately weigh 42.75 g of liquefied diphenylmethane diisocyana...

Embodiment 3

[0056] Add 5g of negative ion powder into a flask with 45g of solvent toluene, ultrasonically disperse for 30min, raise the temperature to 60°C, add 0.5g of silane coupling agent KH570, and reflux and stir for 210min. The reaction liquid was cooled to room temperature, and the solid was obtained by suction filtration, dried in a constant temperature vacuum oven at 70°C, washed three times with absolute ethanol and acetone respectively, dried and ground to obtain the modified negative ion powder additive.

[0057] Weigh 45g polytetrahydrofuran ether glycol (PTMG-2000), 45g polyoxypropylene glycol (N220), 10g polyester polyol (PNA-1000), 1.2g modified negative ion powder additive, 1.08g silicone oil L- 580, 1.6g of water, 0.67g of triethanolamine (TEOA), and 0.25g of dibutyltin dilaurate (DBTDL) were mixed, and stirred at a high speed to obtain component A.

[0058] Accurately weigh 40g of MDI-50 and keep it in a constant temperature state in an oven at 25°C as component B.

[...

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Abstract

The invention discloses a method for preparing a flexible polyurethane porous composite material capable of releasing anions. The composite material is prepared from a component A including the following raw materials in parts by mass: 100 parts of polyol, 1.0-1.5 parts of foam stabilizer, 1.0-3.0 parts of a foaming agent, 0.01-1.5 parts of an amine catalyst, 0.05-0.5 part of organic tin catalystand 0.3-4.0 parts of a modified anionic powder additive and a component B which is 20-60 mass parts of isocyanate by uniform mixing and foaming. The flexible polyurethane porous composite material hashigh anion release capacity, controllable tensile property and resilience performance, and can be applied to mattresses, sofa, automobile internal decoration, pillows and other products.

Description

technical field [0001] The present invention relates to the preparation of flexible polyurethane foam material, in particular to the preparation method of flexible polyurethane foam material with negative ion releasing function. Background technique [0002] Flexible Polyurethane Foam, referred to as polyurethane soft foam, is widely used in furniture, car seat cushions, environmental protection, medical and health care and other fields due to its low density, good resilience, high specific strength, and breathability. [0003] At present, polyether polyols are mostly used in the synthesis of polyurethane soft foam. The ether bonds in the main chain structure of polyether polyol have low cohesive energy and are easy to rotate. Therefore, polyether polyurethane flexible foam has good flexibility at low temperature and excellent hydrolysis resistance, but its mechanical strength is poor. [0004] Guo Jianmei et al. (Synthesis and Characterization of Polymer Polyether Polyols....

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08G18/42C08J9/08C08K9/06C08K3/00
CPCC08G18/4018C08G18/7614C08G18/7671C08K3/00C08K9/06C08G2110/0008C08G2110/0083
Inventor 王香梅王萌霞
Owner ZHONGBEI UNIV
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