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Temperature-resistant polyvinyl chloride material and preparation method thereof

A polyvinyl chloride, temperature-resistant technology, applied in the field of temperature-resistant polyvinyl chloride materials and their preparation, can solve problems such as poor heat resistance, achieve the effects of improving thermal conductivity, excellent temperature resistance and toughness, and improving thermal conductivity

Inactive Publication Date: 2017-10-24
周佳瑜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its heat resistance is poor, the softening point is 80°C, it starts to decompose and change color at 130°C, and precipitates HCl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of heat-resistant polyvinyl chloride material, its preparation method comprises the following steps:

[0022] (1) Weigh 50 parts of silver oxalate, 105 parts of aluminum oxalate, 235 parts of sodium oxalate, 7 parts of polyvinyl alcohol 1000 and 375 parts of water and add them to the reactor, the stirring speed is 60r / min, and the system temperature is maintained at 49 °C The product was reacted at 120°C and -0.08MPa for 2h in vacuum, then roasted at 400°C for 2h, 500°C for 2h, and 600°C for 2h under the protection of nitrogen. Washing 3 times, vacuum drying at 80°C and -0.07MPa for 0.5h to obtain silver powder coated with aluminum powder;

[0023] (2) Weigh 30 parts of aluminum powder-coated silver powder, 69 parts of graphite, 160 parts of chlorosulfonic acid and 57 parts of dimethylformamide and add them to the reactor, the stirring speed is 98r / min, and the system temperature is maintained at 37 °C The product was reacted at low temperature for 0.5h, and the...

Embodiment 2

[0028] A kind of heat-resistant polyvinyl chloride material, its preparation method comprises the following steps:

[0029](1) Weigh 50 parts of silver oxalate, 95 parts of aluminum oxalate, 210 parts of sodium oxalate, 5 parts of polyvinyl alcohol 1000 and 350 parts of water and add them to the reactor, the stirring speed is 50r / min, and the system temperature is maintained at 45 °C The product was reacted at 120°C and -0.08MPa for 2h in vacuum, then roasted at 400°C for 2h, 500°C for 2h, and 600°C for 2h under the protection of nitrogen. Washing 3 times, vacuum drying at 80°C and -0.07MPa for 0.5h to obtain silver powder coated with aluminum powder;

[0030] (2) Weigh 30 parts of aluminum powder-coated silver powder, 65 parts of graphite, 140 parts of chlorosulfonic acid and 50 parts of dimethylformamide and add them to the reactor, the stirring speed is 90r / min, and the system temperature is maintained at 35 °C The product was reacted at low temperature for 0.4h, and the p...

Embodiment 3

[0035] A kind of heat-resistant polyvinyl chloride material, its preparation method comprises the following steps:

[0036] (1) Weigh 50 parts of silver oxalate, 120 parts of aluminum oxalate, 260 parts of sodium oxalate, 10 parts of polyvinyl alcohol 1000 and 380 parts of water and add them to the reactor, the stirring speed is 70r / min, and the system temperature is maintained at 55 °C The product was reacted at 120°C and -0.08MPa for 2h in vacuum, then roasted at 400°C for 2h, 500°C for 2h, and 600°C for 2h under the protection of nitrogen. Washing 3 times, vacuum drying at 80°C and -0.07MPa for 0.5h to obtain silver powder coated with aluminum powder;

[0037] (2) Weigh 30 parts of aluminum powder-coated silver powder, 75 parts of graphite, 190 parts of chlorosulfonic acid and 70 parts of dimethylformamide and add them to the reactor, the stirring speed is 110r / min, and the system temperature is maintained at 41 °C The product was reacted at low temperature for 0.9h, and t...

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PUM

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Abstract

The invention relates to a temperature-resistant polyvinyl chloride material which includes: polyvinyl chloride, modified graphite, modified paraffin, polymaleic acid, metal filled graphite, diisodecyl pentaerythritol diphosphite and magnesium stearate; wherein the modified graphite is prepared through a reaction to hydrofluoric acid, hydrosulfuric acid, graphite, isopropanol and silver powder; the modified paraffin is prepared through a reaction to ethanol, paraffin, dimethyl formamide and copper powder; the metal filled graphite is prepared through a reaction to aluminum powder coating silver powder, graphite, chlorosulfonic acid and dimethyl formamide; and the aluminum powder coating silver powder is prepared through a reaction to silver oxalate, aluminum oxalate, sodium oxalate, polyvinyl alcohol 1000 and water. The polyvinyl chloride material has excellent temperature resistance and mechanical strength.

Description

technical field [0001] The invention relates to a temperature-resistant polyvinyl chloride material and a preparation method thereof. Background technique [0002] Polyvinyl chloride is yellowish, shiny, translucent resin. According to the amount of additives used, PVC is divided into two types: soft and hard. Soft products are soft and tough, and feel sticky. Hard products have high hardness and will appear whitening at the inflection point. PVC has excellent chemical resistance, flame retardancy, electrical insulation, mechanical strength and other advantages. However, its heat resistance is poor, and its softening point is 80°C. It begins to decompose and change color at 130°C, and precipitates HCl. Polyvinyl chloride is widely used in protective films, films, daily necessities, pipes, rods, packaging and other fields. [0003] At present, the temperature resistance and mechanical strength of polyvinyl chloride materials need to be further improved. The invention uses...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08L35/00C08K13/06C08K9/02C08K3/04C08K5/098C08K5/524B29B9/06
CPCC08L27/06B29B9/06C08K2201/014C08L2201/08C08L2205/03C08L91/06C08L35/00C08K13/06C08K9/02C08K3/04C08K5/098C08K5/524
Inventor 周佳瑜
Owner 周佳瑜
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