Hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation and preparation method thereof

A polyisocyanurate and transmission pipeline technology, applied in the field of polyurethane, can solve the problems of unsatisfactory thermal insulation effect, low water absorption rate and high cost, improve compressive strength, improve compressive strength and flame retardant performance, avoid The effect of foam breaking

Active Publication Date: 2021-04-23
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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  • Hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation and preparation method thereof
  • Hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation and preparation method thereof
  • Hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation and preparation method thereof

Examples

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Effect test

preparation example Construction

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

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

Embodiment 1

[0039] Prepare the hard polyisocyanurate node material for deep-sea fuel transmission pipeline joint insulation according to the following formula and method:

[0040] A component:

[0041]

[0042]

[0043] B component:

[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 into the reactor in sequence , stirred at room temperature for 1.5 hours, then added sodium silicate aqueous solution and stirred for 20 minutes 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 in the formulated amount into the reactor, and stir at room temperature for 1 hour to obtain component B;

[0050] (3) When in us...

Embodiment 2

[0052] Prepare the hard polyisocyanurate node material for deep-sea fuel transmission pipeline joint insulation according to the following formula and method:

[0053] A component:

[0054]

[0055]

[0056] B component:

[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 in Example 1.

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Abstract

The invention belongs to the technical field of polyurethane, and particularly relates to a hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation and a preparation method thereof. The hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation is composed of a component A and a component B according to a mixing mass ratio of 1:1.3-1.7, wherein the component A is composed of polyether polyol A, polyether polyol B, polyester polyol C, a foam stabilizer, a catalyst, a flame retardant and a sodium silicate aqueous solution; the component B is formed by mixing isocyanate and a prepolymer according to the ratio of (50-80):(20-50); wherein the polyether polyol A is special polyether polyol with a hydroxyl value of 425+/-3mgKOH/g. The hard polyisocyanurate node material for deep sea transmission pipeline interface heat preservation is low in foam heat, high in aperture ratio, high in compressive strength and good in flame retardant property; the invention also provides a preparation method of the hard polyisocyanurate node material.

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 deep-sea transmission pipeline joints 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 deep-sea pipelines, the insulation and flame-retardant effects of pipelines are particularly important. The insulation, flame retardancy, 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 deep sea, the insulation, flame retardancy, and protection of the pipeline interface become the key factors affecting deep sea fuel transmission. [0003] At present, polyurethane joint technology is widely ...

Claims

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Application Information

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Patent Type & Authority Applications(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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