Rigid polyisocyanurate node material for thermal insulation of deep sea transmission pipeline interface and preparation method thereof

A technology of polyisocyanurate and transmission pipes, which is applied in the field of polyurethane, can solve the problems of unsatisfactory thermal insulation effect, low water absorption rate, high cost, etc., achieve the improvement of compressive strength, improve compressive strength and flame retardancy, and avoid The effect of foam breaking action

Active Publication Date: 2022-07-19
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, polyurethane joint technology is widely used in deep-sea pipeline joints. In the deep-sea field, non-foaming polyurethane elastomer products are used as joint joint materials. They have high compressive strength, low water absorption, and wear resistance, but they use more materials and cost more. At the same time, they have thermal insulation effects. not ideal

Method used

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  • Rigid polyisocyanurate node material for thermal insulation of deep sea transmission pipeline interface and preparation method thereof
  • Rigid polyisocyanurate node material for thermal insulation of deep sea transmission pipeline interface and preparation method thereof
  • Rigid polyisocyanurate node material for thermal insulation of deep sea transmission pipeline interface and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0036] The preparation method of the polyether polyol A used is as follows:

[0037]In a 2.5L autoclave equipped with a stirrer, a meter, a heating and temperature control device, a cooling device (including an outer jacket and an inner coil) and a pressure sensor, 342g of sucrose, 33.54g of trimethylolpropane, and a catalyst of KOH3. 47g, nitrogen was replaced 5 times, and evacuated to a pressure of -0.08MPa, then stirred (rotation speed 500r / min) to heat up, when the temperature increased to 85 °C, 116.5g of ethylene oxide was added, and the initial pressure was controlled to 0.20Mpa, the reaction When the pressure is constant, the temperature is raised to 120°C, the pressure is controlled at 0.20MPa, 233.5g of propylene oxide is continuously added, and the remaining 389.5g of ethylene oxide is added continuously after the reaction until the pressure no longer changes, and the remaining 40g of ethylene oxide is added after aging for a period of time. Propylene oxide is conti...

Embodiment 1

[0039] The rigid polyisocyanurate node material for thermal insulation of deep-sea fuel transmission pipeline interface is prepared according to the following formula and method:

[0040] A component:

[0041]

[0042]

[0043] Component B:

[0044] PM200 1162kg

[0045] Prepolymer 290kg;

[0046] The mixing mass ratio of component A and component B is 1:1.3.

[0047] Preparation:

[0048] (1) Add the weighed polyether polyol A, INOVOL S210H, PS-2352, foam stabilizer L580, catalyst A-1, catalyst DMP-30, catalyst TMR-2, and flame retardant FR102 to the reaction kettle in turn , stir at room temperature for 1.5h, then add sodium silicate aqueous solution and stir for 20min to obtain component A;

[0049] (2) first use INOVOL S210H and PM200 as raw materials to synthesize a prepolymer with an NCO content of 21.5wt%, add the prepolymer and PM200 of the formula amount to the reaction kettle, and stir at room temperature for 1h to obtain component B;

[0050] (3) When us...

Embodiment 2

[0052] The rigid polyisocyanurate node material for thermal insulation of deep-sea fuel transmission pipeline interface is prepared according to the following formula and method:

[0053] A component:

[0054]

[0055]

[0056] Component B:

[0057] PM200 1027kg

[0058] Prepolymer 685kg;

[0059] The mixing mass ratio of component A and component B is 1:1.5.

[0060] The preparation method is the same as that of Example 1.

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Abstract

The invention belongs to the technical field of polyurethane, and in particular relates to a rigid polyisocyanurate node material for thermal insulation of a deep-sea transmission pipeline interface and a preparation method thereof. The rigid polyisocyanurate node material for thermal insulation of the interface of the deep-sea transmission pipeline is composed of the A component and the B component in a mixed mass ratio of 1:1.3-1.7, and the A component is composed of polyether polyol A, poly Ether polyol B, polyester polyol C, foam stabilizer, catalyst, flame retardant, sodium silicate aqueous solution; B component is isocyanate and prepolymer mixed according to (50-80): (20-50); Polyether polyol A is a special polyether polyol with a hydroxyl value of 425±3 mgKOH / g. The rigid polyisocyanurate node material for thermal insulation of a deep-sea transmission pipeline interface of the present invention has low foam heat, high porosity, high compressive strength and good flame retardancy; the invention also provides a preparation method thereof.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a rigid polyisocyanurate node material for thermal insulation of a deep-sea transmission pipeline interface and a preparation method thereof. Background technique [0002] With the rapid increase in the exploitation of deep-sea energy, the demand for fuel transmission has increased year by year. In order to ensure the safe transmission of fuel in the pipeline in the deep-sea field, the thermal insulation and flame retardant effects of the pipeline are particularly important. The thermal insulation, flame retardant and protection of the main body of the pipeline are completed in a specific factory, and the quality is relatively stable. However, during the construction and laying of the pipeline in the deep sea, the thermal insulation, flame retardant and protection at the pipeline interface have become the key factors affecting the transmission of deep-sea fuel. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/48C08G18/42C08G18/10C08K3/34C08G101/00
CPCC08G18/4837C08G18/4812C08G18/4208C08G18/4018C08G18/10C08K3/34
Inventor 马海晶刘玄殷守相魏光曦
Owner SHANDONG INOV NEW MATERIALS CO LTD
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