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A kind of preparation method of cross-linked polystyrene building insulation material

A technology of cross-linked polystyrene and building insulation, applied in the field of building materials, can solve the problems of poor compatibility between inorganic fillers and polymer matrix, reduced stability of finished products, and reduced product performance, so as to improve storage stability, strength, and Stabilizing strength and improving mechanical properties

Active Publication Date: 2019-05-17
NANTONG SUDONG NEW EXTERNAL WALL INSULATION BOARDCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polystyrene resin is used as a building insulation material. The first few performance indicators to consider are low thermal conductivity and good mechanical properties. In order to improve the mechanical properties of traditional polystyrene foam, inorganic fillers are introduced. However, inorganic fillers and polymerization The compatibility of the material matrix is ​​poor, which will easily lead to a decrease in the stability of the finished product, thereby reducing the performance of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of cross-linked polystyrene building insulation material, comprising the following steps:

[0020] (1) Take 4 parts by weight of the initiator, add it to deionized water 20 times its weight, and stir evenly;

[0021] (2) Take 1 part by weight of 8-hydroxyquinoline, add it to 35 times the weight of absolute ethanol, stir evenly, add 2-3 parts by weight of zinc stearate, keep stirring at 70 ° C for 2 hours, Alcohol dispersion;

[0022] (3) Take 20 parts by weight of sepiolite powder, add it to 2mol / l sodium hydroxide and soak for 2 hours, wash it with water after discharging, dry it, add it to the above alcohol dispersion, and ultrasonicate for 20 minutes to obtain an organic fossil powder solution ;

[0023] (4) Mix 3 parts by weight of melamine and 130 parts by weight of styrene, preheat at 95°C for 5 minutes, add it to the above-mentioned organic fossil powder solution, stir to room temperature, put it into the reaction kettle, and blow in nitrog...

Embodiment 2

[0030] A preparation method of cross-linked polystyrene building insulation material, comprising the following steps:

[0031] (1) Take 3 parts by weight of the initiator, add it to 17 times its weight in deionized water, and stir evenly;

[0032] (2) Take 0.9 parts by weight of 8-hydroxyquinoline, add it to 28 times the weight of absolute ethanol, stir evenly, add 2 parts by weight of zinc stearate, and keep stirring at 60°C for 1 hour to obtain alcohol Dispersions;

[0033] (3) Take 13 parts by weight of sepiolite powder, add it to 1mol / l sodium hydroxide and soak for 1 hour, wash it with water after discharge, dry it, add it to the above alcohol dispersion, and ultrasonicate for 10 minutes to obtain an organic fossil powder solution ;

[0034] (4) Mix 2-3 parts by weight of melamine and 110 parts by weight of styrene, preheat at 90°C for 3-5 minutes, add to the above organic fossil powder solution, stir to normal temperature, and send it into the reaction kettle , feed n...

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Abstract

The invention discloses a preparation method of a cross-linked polystyrene building thermal insulation material, a cyanamide polymer is mixed with water emulsion containing aluminium dihydrogen phosphate, and a foaming agent is introduced in the reaction process of cyanamide and ricinoleic acid for foaming to effectively promote the filling effect of the aluminium dihydrogen phosphate in the polymer matrix further to improve the stability strength of the finished product. The finished material has good foaming stability, mechanical property, good thermal insulation property and excellent comprehensive performance.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a preparation method of a cross-linked polystyrene building insulation material. Background technique [0002] Expanded polystyrene resin has a wide range of uses. Due to its high strength, light weight, excellent thermal insulation performance and high energy absorption capacity, it can be used as a variety of instruments, valuables, precision instruments, vegetables and fruits and aquatic products. and other packaging materials; and because of its excellent characteristics such as low thermal conductivity, low water absorption, good electrical insulation, sound insulation, moisture resistance, and simple molding process, it is widely used in roadbed laying of roads and bridges, housing construction, fishing and fishing. Insulation materials in the refrigeration industry, etc. Among them, as an excellent building material, expanded polystyrene resin is mainly used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F112/08C08F8/32C08F2/44C08K13/06C08K9/10C08K3/34C08K3/32C08K5/098C08J9/10
CPCC08F2/44C08F8/32C08F112/08C08J9/103C08J2203/04C08J2325/06C08K3/32C08K3/34C08K5/098C08K9/10C08K13/06
Inventor 董艺
Owner NANTONG SUDONG NEW EXTERNAL WALL INSULATION BOARDCO
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