Antistatic low temperature resistant slow rebound polyurethane sponge material and preparation method thereof

A technology of polyurethane sponge and low temperature resistance, applied in the field of organic polymer synthesis, can solve the problems of reducing the surface resistivity of polyurethane, poor storage stability of raw materials, poor antistatic properties, etc., and achieves good mechanical strength, good slow rebound characteristics, Not easy to destroy the effect of deformation

Active Publication Date: 2022-07-22
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional method to improve the antistatic performance of slow rebound polyurethane sponge is to add antistatic agent or physically impregnate conductive filler, but after adding antistatic agent, because small molecular substances are easy to precipitate in the polymer matrix, its long-term antistatic performance is not good. ; Although the surface resistivity of polyurethane can be effectively reduced after physical impregnation, the stability is not good
Both methods will lead to many problems such as excessive smell of sponge, poor storage stability of raw materials, migration of antistatic agent, etc.

Method used

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  • Antistatic low temperature resistant slow rebound polyurethane sponge material and preparation method thereof
  • Antistatic low temperature resistant slow rebound polyurethane sponge material and preparation method thereof
  • Antistatic low temperature resistant slow rebound polyurethane sponge material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033]The antistatic low temperature resistant slow rebound polyurethane sponge material and the preparation method thereof described in this embodiment include the following steps:

[0034] (1) Preparation of conductive enhancer:

[0035] Step 1, Preparation of SN-GO: Graphene oxide GO was prepared by the modified Hummers method. 0.2 g of GO was taken into a round-bottomed flask containing 20 mL of anhydrous DMF, and sonicated at 100 W for 1 h in an ultrasonic cleaning machine. Then, 2 mL of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate was added to the GO dispersion liquid, and under a nitrogen atmosphere, magnetically stirred for 24 h, and finally the product was washed and lyophilized to obtain SN-GO.

[0036] Step 2, preparation of SN-RGO: add 0.2g SN-GO into a beaker filled with 50mL deionized water, after ultrasonic dispersion for 30min, stir at 500r / min for 1h, then add 0.2g anhydrous glucose, magnetic stirring reaction After 30 min, 1 mL of ammonium hy...

Embodiment 2

[0049] The antistatic low temperature resistant slow rebound polyurethane sponge material and the preparation method thereof described in this embodiment include the following steps:

[0050] (1) Preparation of conductive enhancer: the same as in Example 1.

[0051] (2) Preparation of modified low temperature resistant agent: the same as in Example 1.

[0052] (3) Accurately weigh the raw materials of the following weight ratios: 40 parts of FF 11834, 40 parts of PPG, 20 parts of POP-2045, 2.4 parts of A33, auxiliary agent (tin octoate T9: surfactant L-580: pore opener GLK-15=1:4.2:5.5 mixture) 10.7 parts, 1.3 parts of deionized water, 5 parts of modified low temperature resistant agent, 10 parts of conductivity enhancer, and 62 parts of MDI.

[0053] The foaming process is the same as in Example 1.

Embodiment 3

[0055] The antistatic low temperature resistant slow rebound polyurethane sponge material and the preparation method thereof described in this embodiment include the following steps:

[0056] (1) Preparation of conductive enhancer: the same as in Example 1.

[0057] (2) Preparation of modified low temperature resistant agent: the same as in Example 1.

[0058] (3) Accurately weigh the raw materials of the following weight ratios: 40 parts of FF 11834, 40 parts of PPG, 20 parts of POP-2045, 2.4 parts of A33, auxiliary agent (tin octoate T9: surfactant L-580: pore opener GLK-15=1:4.2:5.5 mixture) 10.7 parts, 1.3 parts of deionized water, 10 parts of modified low temperature resistant agent, 5 parts of conductivity enhancer, and 62 parts of MDI.

[0059] The foaming process is the same as in Example 1.

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Abstract

The invention belongs to the technical field of polyurethane material preparation, and in particular relates to an antistatic low temperature resistant slow rebound polyurethane sponge material and a preparation method thereof. The reduced graphene oxide SN-RGO of the salt was used as a conductive enhancer, and then anilinemethyltriethoxysilane-modified oxidized acetylene carbon black ND-42@o-ACET was prepared, which was grafted with self-made polyether-modified silicone oil. As a modified low temperature resistant agent, it is added to obtain an antistatic low temperature resistant slow rebound polyurethane sponge material. On the basis of not changing the structure and mechanical properties of the original slow-rebound polyurethane sponge, its strength, low temperature resistance, antistatic properties, antistatic stability and other properties have been greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of organic polymer synthesis, and relates to a production method of a polyurethane polymer material, in particular to an antistatic, low-temperature-resistant slow-rebound polyurethane sponge and a production method thereof. Background technique [0002] Slow-rebound polyurethane foam is a viscoelastic soft foam, also known as memory foam because of its shape memory function. It is a special material in foamed plastics, which has the characteristics of "handprint", that is, when the foam is deformed by external force, its strain lags behind the change of stress, so when external force is applied to its foam, it does not recover immediately, but It slowly returns to its original shape after 3 to 15 seconds, so this special foam is called slow-rebound foam, also called memory foam. The birth of slow-rebound polyurethane sponge can be traced back to a 1962 NASA study: the United States cited a high-cushion mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/63C08G18/48C08L75/08C08L87/00C08K9/04C08K3/04C08G101/00
CPCC08G18/7671C08G18/63C08G18/4804C08G18/4072C08L75/08C08G2101/00C08G2110/0083C08G2110/0058C08G2110/005C08K2201/001C08L2201/04C08L87/005C08K9/04C08K3/042
Inventor 郑玉婴王利
Owner FUZHOU UNIV
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