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Process for preparing nm-class particles toughened and reinforced polyvinyl chloride composite material

A nano-particle, polyvinyl chloride technology, applied in the nano field, can solve the problem of rigidity, tensile strength decline of polyvinyl chloride composites, inability to improve and improve mechanical properties and processability of polyvinyl chloride composites, and unsatisfactory polyvinyl chloride materials. Seeing the problems of nanoparticle preparation technology, to achieve the effect of reducing mutual cohesion and good chemical properties

Inactive Publication Date: 2003-12-31
黄锐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rigidity and tensile strength of the rubber-toughened polyvinyl chloride composite material are greatly reduced, and the mechanical properties and processing properties of the prepared polyvinyl chloride composite material cannot be fully improved and improved.
[0003] According to relevant data retrieval, there is no preparation technology using nanoparticle composite in the toughening and strengthening of polyvinyl chloride materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 2000 grams of calcium carbonate with an average particle size of 40 nm and 80 grams of titanate into a high-speed mixer, mix at 120°C for 45 minutes, cool to 40°C and set aside. Add the processed nano-calcium carbonate, polyvinyl chloride and various additives into the high-speed mixer according to the formula in the table below, mix to a temperature of 120°C, and then cold-mix until the material is lower than 40°C to obtain nano-calcium carbonate Toughened reinforced polyvinyl chloride composites.

[0019] Recipe (parts by weight) PVC stabilizer lubricant CPE pigment plasticizer sodium calcium carbonate μm grade calcium carbonate 100 3~6 0.5~1.5 3~12 appropriate amount 0 3~ 5 5~40

Embodiment 2

[0021] Add 2,000 grams of silicon dioxide with an average particle size of 20 nm and 60 grams of sodium dodecylbenzenesulfonate into a high-speed mixer, and mix for 45 minutes at a temperature of 110° C. Add the treated nano-silica, polyvinyl chloride, micron-grade light calcium carbonate and various additives into the high-speed mixer according to the formula in the table below, mix until the temperature is 120°C, and carry out cold mixing until the temperature is lower than Discharging at 40°C, the nano-silica toughened and reinforced polyvinyl chloride composite material is obtained.

[0022] Recipe (parts by weight) PVC stabilizer Lubricant CPE ACR Tio 2 Nano silicon dioxide μm grade light calcium carbonate 100 3~6 0.5~1.5 5 1 1 1~3 5~15

Embodiment 3

[0024] Add 2000 grams of silicon carbide and silicon nitride mixture with an average particle size of 50nm and 60 grams of stearic acid into a high-speed mixer at a temperature of 115°C for 45 minutes, and mix the treated nano-silicon carbide, silicon nitride and polychloride Add ethylene, micron-sized barite powder and various additives into the high-speed mixer according to the formula in the table below, mix until the temperature is 120°C, and then cold mix the material until the temperature is lower than 40°C, then the nano-silicon carbide, Silicon nitride toughened reinforced polyvinyl chloride composites.

[0025] Nano-silicon carbide / silicon nitride toughened and reinforced polyvinyl chloride composite material (parts by weight) PVC stabilizer lubricant phthalic acid nano-silicon carbide / μm grade barite powder

[0026] Dioctyl ester Silicon nitride 100 3~6 0.5~1.5 2 0.5 10~30

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PUM

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Abstract

A nano particles reinforced and toughened composite PVC material is prepared through adding nano-class (20-80 nm) particles and surface disperser to a mixer with ultrasonic oscillation generator or a vibratory mixer, or to a ball grinder, uniformly dispersing, then drying, mixing with powdered PVC and assistance a high-speed mixer, heating to required temp., discharging and cold mixing until the mixture is cooled to the temp. lower than 40 deg.c.

Description

technical field [0001] The invention relates to nanotechnology, in particular to a method for preparing a nano particle toughened and reinforced polyvinyl chloride composite material in the field of polymer composite material preparation. Background technique [0002] Polyvinyl chloride is a general-purpose plastic with a wide range of uses, but its application as a structural material is limited due to its high brittleness. In the past, rubber (CPE, MBS, etc.) was used to toughen polyvinyl chloride, which can improve the toughness of polyvinyl chloride. However, the rigidity and tensile strength of the rubber-toughened polyvinyl chloride composite material are greatly reduced, and the mechanical properties and processability of the prepared polyvinyl chloride composite material cannot be fully improved and enhanced. [0003] According to relevant data retrieval, there is no preparation technology using nanoparticle composite in the toughening and strengthening of polyvinyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K7/00C08K9/04C08L27/06
Inventor 黄锐范五一叶盛京顾正
Owner 黄锐