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A kind of fire-proof and heat-insulating material for ship bulkhead and its preparation method and application

A technology for thermal insulation materials and bulkheads, which is applied in the direction of hull bulkheads, hulls, and ship construction, and can solve the problems of easy breakage, increased construction costs, and insignificant thermal insulation effect of fireproof and thermal insulation bulkheads, and achieves good porosity.

Active Publication Date: 2016-01-13
JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to solve the problems existing in the prior art, the present invention provides a fireproof and heat insulating material for ship bulkheads, the fireproof material has a moisture content of less than 2%, a compressive strength of more than 2.0MPa, and a bending strength of more than 1.5MPa , the purpose of which is to solve the problems of extended construction period, increased construction cost, and increased construction difficulty due to the problem of material installation and filling in the process of ship fire and heat insulation treatment, especially to solve the problem that the heat insulation effect of traditional fire and heat insulation bulkheads is not obvious. In particular, problems such as low compressive and flexural strength, easy breakage under vibration load, etc., at the same time, the xonotlite type thermal insulation material of the present invention has high damage rate and high water absorption rate, so that it can be applied to high-temperature pipes in ship engine rooms External insulation of roads and siding of certain compartments

Method used

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  • A kind of fire-proof and heat-insulating material for ship bulkhead and its preparation method and application
  • A kind of fire-proof and heat-insulating material for ship bulkhead and its preparation method and application
  • A kind of fire-proof and heat-insulating material for ship bulkhead and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 Preparation of epoxy-modified acrylic emulsion.

[0039] Component formula:

[0040]

[0041] Preparation:

[0042] (1) Preparation of emulsifier solution: mix the emulsifier of formula quantity with water to obtain emulsifier solution;

[0043] (2) Pre-emulsification: Add the three monomers of methyl methacrylate, butyl acrylate and styrene and the N-methylol acrylamide of the formula amount into the reaction kettle, and add the formula amount while stirring epoxy resin and make it dissolve, then add 1 / 2 amount of emulsifier solution, complete pre-emulsification through high-speed stirring to obtain pre-emulsion, set aside;

[0044] (2) Seed initiation: take 1 / 10 of the pre-emulsion, mix it with the remaining 1 / 2 amount of emulsifier solution, and then add it to the 2 In the protected reaction kettle, add the sodium bicarbonate of the recipe amount, slowly raise the temperature to 50 ° C, and stir, add the initiator of 1 / 2 the recipe amount, the tempera...

Embodiment 2

[0046] Example 2 Preparation method of xonotlite active slurry.

[0047] Get quartz powder and lime powder, wherein, SiO in the quartz powder 2 The content is greater than 98wt%, and the CaO content in the lime is 85-99%, according to CaO and SiO 2 The molar ratio is 1. Mix lime powder and quartz powder, and then mix the mass ratio of quartz powder and lime powder to water 25:1 to obtain a slurry. Stir the slurry evenly and transport it to a high-pressure reactor with a stirring device. In the kettle, heat up to 210-220°C at a rate of 1.5°C / min. The stirring speed is 150r / min during the heating stage and 50r / min during the heat preservation stage. After 5 hours of heat preservation, the temperature is naturally lowered, and hard silicon is obtained after cooling. Calcium stone active material slurry is for use.

Embodiment 3

[0048] Example 3 Preparation of fire-proof and heat-insulating materials.

[0049] 1. Raw material formula:

[0050]

[0051] 2. Preparation method:

[0052] Add 5 parts of glass fiber, 2 parts of cotton fiber, 5 parts of epoxy-modified acrylic emulsion, and 2 parts of water glass (modulus 2.5-3, the same below) to the active slurry containing 100 parts of xonotlite and mix well , and then injected into a mold with 2 parts of alkali-free glass fiber cloth, pressurized and dehydrated. The pressure is controlled at 1.0MPa during pressing. The pressed wet billet is put into a drying kiln for drying, and the temperature of the drying kiln is controlled at 150°C. After drying, spray 2 parts of organosilicon water-repellent agent on the surface for infiltration treatment, and the dried green body is inspected to obtain the finished product.

[0053] The main technical index tests of the fireproof and heat insulating material prepared in this embodiment are shown in Table 1: ...

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Abstract

The invention discloses a fireproof thermal insulation material used for a ship bulkhead as well as a preparation method and an application thereof. The fireproof thermal insulation material used for the ship bulkhead is prepared from the following components in parts by weight: 80-100 parts of xonotlite active slurry, 5-10 parts of reinforcing and toughening fibers, 5-8 parts of epoxy modified acrylic emulsion, 2-5 parts of water glass, 0.5-2 parts of a water repellent and 3-5 parts of multi-layer glass fiber cloth. The fireproof thermal insulation material used for the ship bulkhead can be compressed and moulded into a panel to be mounted in a cabin wall panel structure, so that the weight of a ship can be reduced, construction is convenient, fireproofing grade is improved; meanwhile, the fireproof thermal insulation material used for the ship bulkhead has good fireproof performance, low volume weight, high anti-compression and anti-bending strength, nonbreakable at long-term vibration load, low breakage rate and low moisture absorption, so that safety of the whole ship, safety of passengers and requirements of the ship on self weight and stability are guaranteed. The fireproof thermal insulation material used for the ship bulkhead also can be applied to fireproof separation on the ship, thermal isolation of a cabin and thermal insulation of a high-temperature pipeline.

Description

technical field [0001] The invention belongs to the field of ship outfitting and ship fireproofing and heat insulation, and in particular relates to a fireproofing and heat insulating material used for ship bulkheads and a preparation method and application thereof. Background technique [0002] With the advancement of design and construction technology in the field of ships, the types of ships have increased, and the size of the hull has increased, so the use of fire-proof and heat-insulating materials for ships has become more and more important. The use of traditional fire-proof and heat-insulating materials for ships requires a lot of work, poor working environment, difficult construction, and long construction period, and the fire-proof and heat-insulating effect of traditional fire-proof and heat-insulating bulkheads is not obvious. Therefore, it is very important to reduce the difficulty of using fireproof and heat insulating materials in ships and to enhance the fire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B28/26C04B14/42C04B24/28B63B3/56
Inventor 张健陈立庄昌满黄祥宏
Owner JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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