High fire-retardant and high impact-resistant regenerated polystyrene XPS particle and preparation method thereof

A technology for regenerating polystyrene and polystyrene, applied in the field of material science, can solve the problems of being difficult to degrade, destroy soil structure, pollute the air and atmospheric environment, etc., and achieve the effects of easy processing, good mechanical properties and broad prospects.

Inactive Publication Date: 2014-04-23
LIHAI CHEM IND CO LTD OF JIANGSU JINQIAO SALT & CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the rapid development of petrochemical and plastic industries, polystyrene (XPS) is widely used in building materials, household appliances, etc., but it also causes serious white pollution, and its recycling rate is less than 20%.
If the discarded polystyrene (X

Method used

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  • High fire-retardant and high impact-resistant regenerated polystyrene XPS particle and preparation method thereof
  • High fire-retardant and high impact-resistant regenerated polystyrene XPS particle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example

[0037] Examples 1~5

[0038] Put the solid powder flame retardant, heat stabilizing system and other auxiliary system according to the formula ratio in a high-speed mixer to uniformly mix to obtain compound 1, then put the composite carrier in the high-speed mixer to blend, and then add the liquid flame retardant The agent is fully mixed, then the above-mentioned compound 1 is added, and the mixing is continued to obtain the high flame-retardant and high-impact recycled polystyrene (XPS) particles.

[0039] The prepared particles are put into a vacuum oven and dried at 80-90°C for 2 to 3 hours, and then injected into a standard sample by an injection molding machine. The injection temperature is set to 185°C for the die head, 180°C in the first zone, 180°C in the second zone, and 175°C in the third zone. Perform various performance tests on the standard sample, and the results are shown in Table 1. The dosage of the raw materials is based on 100 parts by weight of the composite c...

Example Embodiment

[0043] Comparing Example 1 with Example 2, it can be seen from the experimental data that the particle carrier is compounded with recycled polystyrene (XPS) and high-impact polystyrene (HIPS). On the one hand, high-impact polystyrene (HIPS) and recycled Polystyrene (XPS) has good compatibility, while retaining the excellent impact resistance of high impact polystyrene (HIPS) resin, so the blend of the two and supplemented by other additives can get very good The impact resistance and mechanical properties.

[0044] Comparing Examples 3 to 5, it can be seen from the experimental data that the flame retardant system of the particles is compounded with several flame retardants, supplemented by other components, which can give full play to the weather resistance, fluidity and flame retardancy of various flame retardant components. , So the flame retardant compound can obtain very good high flame retardant effect.

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Abstract

The invention discloses a high fire-retardant and high impact-resistant regenerated polystyrene XPS particle, which is composed of a composite carrier, a fire-retardant system, a thermal stable system, and a mixed auxiliary agent; wherein the mass ratio of the composite carrier: the fire-retardant system: the thermal stable system: the mixed auxiliary agent is 90-110:1-5:0.1-0.5:0.05-0.3; the composite carrier is composed of regenerated polystyrene XPS particles and high impact-resistant polystyrene particles, and the fire-retardant system is composed of a solid powder fire retardant and a liquid retardant. Recycled regenerated polystyrene resin is adopted as the main raw material to product the high fire-retardant and high impact-resistant regenerated polystyrene XPS particle, then a novel carrier is added, a novel fire retardant is selected, and the thermal stable system and other auxiliary agent system are optimized, so that the product has the advantages of high fire retardant property, high impact resistance, environment-friendliness, good thermal stability, good mechanical property, and easy processing and forming property.

Description

technical field [0001] The invention belongs to the field of material science, and relates to a high flame-retardant and high-impact polystyrene (XPS) material, and more specifically, to a preparation method of a highly flame-retardant and high-impact recycled polystyrene (XPS) particle and its application. Background technique [0002] Polystyrene (Polystyrene, abbreviated as PS) resin is one of the five general-purpose synthetic resins, and generally ranks fourth in terms of output after PE, PVC and PP. In the early stage of styrene-based resin development, only general-purpose polystyrene (GPPS) was produced, which was hard and brittle, with low mechanical strength, poor heat resistance, and flammable. For this reason, people have done a lot of improvement work, forming high impact polystyrene (HIPS), expandable polystyrene (EPS), extrudable polystyrene (XPS) and so on. [0003] High-impact polystyrene (HIPS) material has excellent mechanical properties and processing p...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L51/04C08K5/00C08K5/02C08K5/03C08K5/06C08K5/134
Inventor 章庚柱吉玲李备战
Owner LIHAI CHEM IND CO LTD OF JIANGSU JINQIAO SALT & CHEM GRP
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