High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof

A modified material and high wear-resistant technology, applied in the field of high heat-resistant, high-wear-resistant and environmentally friendly PVC modified materials and their preparation, can solve the problems of human health hazards, easy brittle cracking, and high viscosity

Active Publication Date: 2013-04-24
广东祺龙科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has light weight, high strength, insulation, flame retardancy, corrosion resistance, It has the advantages of excellent comprehensive performance, low price and wide source of raw materials; but it also has the following disadvantages: 1. Poor toughness, easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. Large, the lower limit of general PVC products is -15°C, and the lower limit of soft PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decomposes more rapidly when it is higher than 150°C. The melting temperature of PVC is about 210°C; 3. The

Method used

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  • High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example 1

[0058] Weigh 80Kg of SG-5 PVC resin, 10Kg of heavy calcium carbonate, 15Kg of silica, 15Kg of dioctyl terephthalate, 5Kg of trioctyl trimellitate, 1Kg of epoxidized soybean oil, 61 kg of chlorine % Chlorinated polyvinyl chloride 1Kg, antimony trioxide 0.5Kg, aluminum hydroxide 0.5Kg, tris(isooctyl mercaptoacetate) antimony 0.5Kg, barium stearate 0.5Kg, styrene butadiene rubber 0.5Kg, nitrile rubber 0.5Kg, 0.1Kg of paraffin wax and 0.1Kg of stearyl alcohol; put the mixed raw materials into a high-speed blender and stir at 100°C for 25min; extrude the mixed raw materials through a twin-screw extruder for granulation , The high heat resistance, high wear resistance and environmental protection PVC modified material is prepared; the screw temperature of the twin-screw extruder is: a zone temperature of 138°C, a second zone temperature of 135°C, a third zone temperature of 135°C, and a fourth zone temperature of 132°C And the temperature of zone 5 is 130℃. Table 1...

Example Embodiment

[0059] Example 2

[0060] Weigh 90Kg of raw material SG-7 PVC resin, 13Kg of heavy calcium carbonate, 20Kg of silicon dioxide, 20Kg of dioctyl terephthalate, 7Kg of trioctyl trimellitate, 2Kg of epoxidized soybean oil, 62 kg of chlorine % Chlorinated polyvinyl chloride 2Kg, antimony trioxide 1Kg, aluminum hydroxide 2Kg, penta(isooctyl thioglycolate) antimony 1Kg, barium laurate 1Kg, styrene butadiene rubber 1Kg, nitrile rubber 1Kg, and paraffin oxide 0.3Kg , 0.2Kg of palmitate alcohol; put the mixed raw materials into a high-speed blender and stir at 140℃ for 15 minutes; extrude and pelletize the mixed raw materials through a twin-screw extruder to obtain high heat resistance High wear-resistant and environmentally friendly PVC modified material; the screw temperature of the twin-screw extruder is: a zone temperature of 140°C, a second zone temperature of 140°C, a third zone temperature of 135°C, a fourth zone temperature of 135°C and a fifth zone temperature of 135°C . Table 1...

Example Embodiment

[0061] Example 3

[0062] Weigh 100Kg of raw material SG-5 PVC resin, 16Kg of heavy calcium carbonate, 25Kg of silicon dioxide, 25Kg of dioctyl terephthalate, 9Kg of trioctyl trimellitate, 4Kg of epoxidized soybean oil, and a chlorine content of 63. % Chlorinated polyvinyl chloride 4Kg, antimony trioxide 2Kg, aluminum hydroxide 3Kg, tris(isooctyl thioglycolate) antimony 2Kg, calcium stearate 2Kg, styrene butadiene rubber 2Kg, nitrile rubber 2Kg, liquid paraffin 0.5 Kg and octadecyl alcohol 0.4Kg were mixed; put the mixed raw materials into a high-speed blender and stir at 120°C for 20 minutes; extrude and pelletize the mixed raw materials through a twin-screw extruder to obtain High heat resistance, high wear resistance and environmental protection PVC modified material; the screw temperature of the twin-screw extruder is: 160°C in the first zone, 160°C in the second zone, 155°C in the third zone, 150°C in the fourth zone and 150°C in the fifth zone The temperature is 148°C. Ta...

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Abstract

The invention relates to the technical field of polyvinyl chloride composite materials, in particular to high heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified materials and a preparation method of the high heat resisting and high abrasion resistant PVC modified materials. The modified materials comprise the following raw materials, by weight, 80-120 parts of PVC resin, 25-60 parts of stuffing bulking agents, 21-60 parts of plasticizer, 1-10 parts of chlorinated polyvinyl chloride, 1-10 parts of fire retardant, 1-10 parts of stabilizer, 1-10 parts of impact modifier and 0.2-2 parts of lubricating agents. The raw materials are weighed according to parts by weight and are blended. After being blended, the raw materials are extruded out to be granulated through a double-screw extruder to produce the modified materials. The modified materials are good in heat resisting property and abrasion resistant property, environment-friendly, high in strength, good in flame retardant effect, strong in compressing property and toughness, good in processing property and good in comprehensive property. The preparation method is simple in craft, convenient to operate and control, stable in quality and high in production efficiency, and can be produced in a large scale industrialization mode.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a high heat-resistant, high-abrasion and environment-friendly PVC modified material 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 also There are the following disadvantages: 1. The toughness is poor, and it is easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. The lower limit of general PVC products is -15°C. The lower limit of use of PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decom...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L27/24C08L9/06C08L9/02C08K13/02C08K3/26C08K3/36C08K5/12C08K5/1515C08K3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/92704B29C2948/92895
Inventor 宁建华朱其华
Owner 广东祺龙科技有限公司
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