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High-strength expandable polystyrene filled resin and preparation method thereof

A technology of expandable polystyrene and filled resin, which can be used in chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, organic chemistry, etc., and can solve problems such as low mechanical properties and flammability

Inactive Publication Date: 2022-03-01
安徽乾泰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-strength expandable polystyrene filled resin and its preparation method, through modified polystyrene and flame retardant, to solve the low mechanical properties of expandable polystyrene filled resin at the present stage and flammable problem

Method used

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  • High-strength expandable polystyrene filled resin and preparation method thereof
  • High-strength expandable polystyrene filled resin and preparation method thereof
  • High-strength expandable polystyrene filled resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A high-strength expandable polystyrene filled resin, comprising the following raw materials in parts by weight: 100 parts of modified polystyrene, 5 parts of flame retardant, 5 parts of calcium carbonate, 1 part of dibutyltin dilaurate, stearic acid Calcium 0.1 part;

[0040] The expandable polystyrene filled resin is made by the following steps:

[0041] The above-mentioned raw materials were weighed, mixed evenly, and foamed at a temperature of 120° C. and a pressure of 0.3 MPa to obtain an expandable polystyrene filled resin by molding.

[0042] Modified polystyrene is made by the following steps:

[0043] Step A1: Add concentrated sulfuric acid into the reaction kettle, stir at a speed of 150r / min and a temperature of 1°C, add graphite and sodium nitrate, stir for 30min, add potassium permanganate, continue stirring for 2h, and heat up to The temperature is 30°C, continue to stir for 30 minutes, add deionized water, raise the temperature to 95°C, stir for 15 minut...

Embodiment 2

[0052] A high-strength expandable polystyrene filled resin, comprising the following raw materials in parts by weight: 110 parts of modified polystyrene, 10 parts of flame retardant, 6 parts of magnesium carbonate, 1.3 parts of dibutyltin dimaleate, 0.2 parts of paraffin wax share;

[0053] The expandable polystyrene filled resin is made by the following steps:

[0054] The above raw materials were weighed, mixed evenly, and foamed at a temperature of 130° C. and a pressure of 0.4 MPa to obtain an expandable polystyrene filled resin by molding.

[0055] Modified polystyrene is made by the following steps:

[0056] Step A1: Add concentrated sulfuric acid into the reaction kettle, stir at a speed of 180r / min and a temperature of 2°C, add graphite and sodium nitrate, stir for 35min, add potassium permanganate, continue stirring for 2.5h, and heat up Continue stirring for 35 minutes until the temperature is 35°C, add deionized water, raise the temperature to 96°C, stir for 18 mi...

Embodiment 3

[0065] A high-strength expandable polystyrene filled resin, comprising the following raw materials in parts by weight: 120 parts of modified polystyrene, 15 parts of flame retardant, 8 parts of sodium bicarbonate, 1.5 parts of zinc stearate, stearic acid 0.3 part of glyceride;

[0066] The expandable polystyrene filled resin is made by the following steps:

[0067]The above-mentioned raw materials were weighed, mixed evenly, and foamed at a temperature of 140° C. and a pressure of 0.5 MPa to obtain an expandable polystyrene filled resin by molding.

[0068] Modified polystyrene is made by the following steps:

[0069] Step A1: Add concentrated sulfuric acid into the reaction kettle, stir at a speed of 200r / min and a temperature of 4°C, add graphite and sodium nitrate, stir for 40min, add potassium permanganate, continue stirring for 3h, and heat up to The temperature is 40°C, continue to stir for 40 minutes, add deionized water, raise the temperature to 98°C, stir for 20 min...

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Abstract

The invention discloses high-strength expandable polystyrene filled resin and a preparation method thereof. The expandable polystyrene filled resin comprises the following raw materials in parts by weight: 100-120 parts of modified polystyrene, 5-15 parts of a flame retardant, 5-8 parts of a foaming agent, 1-1.5 parts of a stabilizer and 0.1-0.3 part of a lubricant. The relative molecular weight of the flame retardant is large, the flame retardant cannot be separated out in the using process of the expandable polystyrene filling resin, the durability of the flame retardant effect of the expandable polystyrene filling resin is guaranteed, meanwhile, when the expandable polystyrene filling resin is combusted, oxygen-containing acid of phosphorus in the flame retardant catalyzes a hydroxyl-containing compound to be dehydrated into carbon, and therefore the flame retardant effect of the expandable polystyrene filling resin is improved. Furthermore, a coke layer is generated on the surface of the material, the coke layer can insulate oxygen and heat to extinguish flame, dripping is prevented, and secondary combustion is avoided.

Description

technical field [0001] The invention relates to the technical field of high-strength resin preparation, in particular to a high-strength expandable polystyrene filled resin and a preparation method thereof. Background technique [0002] Polystyrene foam material is a kind of foam plastic developed by German BASF company in the 1950s and was the first to realize industrial production. Due to its excellent performance, low cost, simple and feasible production molding process equipment and the Products with various shapes and different densities have developed rapidly; [0003] Polystyrene foam board, also known as EPS board, is a white object formed by heating expandable polystyrene beads containing volatile liquid foaming agent in a mold after heating and pre-expanding. It has low specific gravity and water resistance. It is good, and has excellent heat insulation and sound insulation performance. It is mainly used for building walls, roof insulation, composite board insulat...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08K5/5399C08J9/08C07F9/6593C08F292/00C08F212/08
CPCC08J9/08C08J9/0038C07F9/65815C08F292/00C08J2351/00C08F212/08
Inventor 张山峰范刚陈佩璇
Owner 安徽乾泰新材料股份有限公司
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