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Heat-resistant polyvinyl chloride alloy material and preparation method thereof

A technology for polyvinyl chloride and alloy materials, applied in the field of heat-resistant polyvinyl chloride alloy materials and their preparation, can solve the problems of inability to change the processing performance of PVC, inability to coordinate the heat resistance and strength and toughness of PVC materials, and achieve high performance. The effect of improving performance and functionality, increasing added value, and expanding the range of applications

Active Publication Date: 2009-09-16
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can also be seen from existing studies that when heat-resistant resins are blended with PVC to prepare heat-resistant PVC alloys, the addition of heat-resistant modifiers cannot change the processing performance of PVC, and at the same time often cannot coordinate the heat-resistant properties of PVC materials. Contradiction with Strength and Toughness

Method used

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  • Heat-resistant polyvinyl chloride alloy material and preparation method thereof
  • Heat-resistant polyvinyl chloride alloy material and preparation method thereof
  • Heat-resistant polyvinyl chloride alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Put 100g of PVC resin, 1.5g of tribasic lead sulfate, 3.5g of calcium stearate and hindered phenol compound into mechanochemical reaction equipment, and react at about 20°C (15-30°C) for about 0.5h to obtain mechanochemical Modified processing aids.

[0036] 100g of PVC resin and 500g of ABS heat-resistant modifier, 4g of composite lead salt (FZ-101), 1.0g of stearic acid, and 1.5g of the above-mentioned mechanochemically modified processing aids were mixed in a high-speed mixer, 110°C Left and right discharge, and then the mixture is melted and blended on a twin-roller plastic mixer with a temperature of about 170°C, and the sheet is discharged after 8 minutes, and the heat-resistant polyvinyl chloride alloy material is prepared. In order to measure the properties of the material, the prepared heat-resistant polyvinyl chloride alloy material was molded into 1mm and 4mm plates on a semi-automatic pressure molding machine at about 185°C, and cut to prepare samples for use...

Embodiment 2

[0040] Put 100g of PVC resin, 2.0g of composite lead salt (FZ-101), 5g of calcium stearate and phosphite compound into the mechanochemical reaction equipment, and react at about 15°C (15-30°C) for about 0.5h, Mechanochemically modified processing aids are obtained.

[0041] 80g of heat-resistant modifier (NR-188) and 20g of nanoscale CaCO 3 and 20g of alcohol in a mechanochemical reactor for about 3 hours to obtain an organically modified filler.

[0042] Mix 100g of PVC resin with 120g of the organically modified filler prepared above, 6g of composite lead salt (FZ-101), 1.5g of stearic acid, and 2.0g of the modified processing aid prepared above in a high-speed mixer at about 120°C The material is discharged, and then the mixture is melted and blended on a twin-roller plastic mixer at a temperature of about 170°C, and the sheet is discharged after 8 minutes, and the heat-resistant polyvinyl chloride alloy material is prepared. In order to measure the properties of the mate...

Embodiment 3

[0046] Put 100g of PVC resin, 2.5g of calcium zinc stabilizer (Bear brand 9700), 4.0g of lubricant (ZB-60) and antioxidant (1010) into the mechanochemical reaction equipment, at about 25°C (15~30 °C) for about 0.5 h to obtain a mechanochemically modified processing aid.

[0047] 70g heat-resistant modifier SMA, 20g nano-scale SiO 2 , 10g of PVC and 10g of alcohol were placed in a mechanochemical reactor and reacted for about 3 hours to obtain an organically modified filler.

[0048] Mix 100g of PVC resin with 20g of the organically modified filler prepared above, 4g of calcium zinc stabilizer (Bear brand 9700), 1.0g of calcium stearate, and 1.8g of the processing aid prepared above in a high-speed mixer at about 100°C The material is discharged, and then the mixture is melted and blended on a twin-roller plastic mixer at a temperature of about 170°C, and the sheet is discharged after 8 minutes, and the heat-resistant polyvinyl chloride alloy material is prepared. In order to...

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Abstract

The invention provides a heat-resistant polyvinyl chloride alloy material and a preparation method thereof. The alloy material mainly comprises the components of a polyvinyl chloride matrix, a heat-resistant modifying agent, a thermal stabilizer, a lubricating agent, a filler, a shock-resistant modifying agent and a processing agent. The components of the processing agent and the filler in the invention are the processing agent modified by a new method and the organically processed filler, and self plasticisation, toughening and reinforcement of PVC are organically combined by a mechanical chemical reaction, so as to improve the compatibility between the polyvinyl chloride and a heat-resistant resin, to solve the conflict among the increment of heat-resistant quality, the working quality, the strength and the ductility of the polyvinyl chloride, to overcome the problems that the polyvinyl chloride has a low heat-resistant temperature and the working quality of the polyvinyl chloride is poor even though the heat-resistant temperature of the polyvinyl chloride is high, and to prepare the polyvinyl chloride engineering plastic with high heat resistance, high strength, high ductility and excellent working quality. The preparation method of the heat-resistant polyvinyl chloride alloy material in the invention has simple technology, stable quality and high production efficiency, and is easily operated and controlled.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride composite materials, and more specifically relates to a heat-resistant polyvinyl chloride alloy material with polyvinyl chloride as a matrix and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has the advantages of light weight, high strength, insulation, flame retardancy, corrosion resistance, excellent comprehensive performance, low price and wide source of raw materials; but PVC has disadvantages such as low impact strength, poor thermal stability, and poor fluidity. restrict its use. People often use methods such as adding fillers, elastomers, plasticizers, heat stabilizers, processing aids, heat-resistant modifiers and flow modifiers to improve the performance of PVC. The Vicat softening temperature of ordinary PVC products is only 75-80°C, which limits it...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L25/08C08L35/00C08L33/24C08L55/02C08K13/06B29B7/28B29B7/72
Inventor 郭少云陈光顺熊雷苏琳邓志伟
Owner SICHUAN UNIV
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