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High calcium carbonate filled herd polyvinyl chloride material

A technology of rigid polyvinyl chloride and polyvinyl chloride resin, applied in the field of rigid polyvinyl chloride materials, can solve the problems of increasing material cost and the like

Inactive Publication Date: 2005-05-25
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, completely replacing micro-particles with nanoparticles not only has the problem of dispersion of high-content nanoparticles, but also increases the cost of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put the raw materials in the following parts by weight in an extruder, melt and mix them at 160°C, extrude them through a molding head at 180°C, cool and shape them to obtain a φ50mm (wall thickness: 2mm) pipe.

[0024] PVC (PVC-SG, Zhenyun Chemical) 100 parts

[0025] Tribasic lead sulfate 2.0 parts

[0026] Dibasic lead sulfate 1.0 parts

[0027] Calcium stearate 1.0 parts

[0028] 0.5 parts of stearic acid

[0029] Paraffin 0.5 parts

[0030] Chlorinated polyethylene 4 parts

[0031] Titanium dioxide 2 parts

[0032] 20 parts of 2μm calcium carbonate

[0033] 50nm calcium carbonate 10 parts

Embodiment 2

[0035] The raw materials of the following parts by weight are made into pipes of the same specification by the method of Example 1.

[0036] PVC (PVC-SG, Zhenyun Chemical) 100 parts

[0037] Tribasic lead sulfate 3.0 parts

[0038] Dibasic lead sulfate 1.0 parts

[0039] Calcium stearate 1.0 parts

[0040] 0.5 parts of stearic acid

[0041] Paraffin 0.5 parts

[0042] Chlorinated polyethylene 8 parts

[0043] Titanium dioxide 2 parts

[0044] 50nm calcium carbonate 20 parts

Embodiment 3

[0069] The raw materials in the following parts by weight were placed in an extruder, melted and mixed at 180°C, extruded through a molding head at 200°C, cooled and shaped to obtain a profile (80 push-pull frame).

[0070] PVC (WS-1000S, chlor-alkali chemical industry) 100 parts

[0071] Tribasic lead sulfate 4 parts

[0072] 0.7 parts of stearic acid

[0073] Oxidized polyethylene wax 0.3 parts

[0074] ACR-401 1.5 parts

[0075] Chlorinated polyethylene 4 parts

[0076] Titanium dioxide 4 parts

[0077] 5 μm calcium carbonate 8 parts

[0078] 80nm calcium carbonate 8 parts

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Abstract

A hard polyvinyl chloride material filled by more calcium carbonate is prepared from nano (or micron)-class calcium carbonate as filler, polyvinyl chloride resin, thermal stabilizer, lubricant, impact modifier, and titanium oxide powder through fusing, mixing and extruding out. Its advantages are high tension strength, elongation for break, impact strength and vicat softening point.

Description

technical field [0001] The invention relates to a rigid polyvinyl chloride material, in particular to a rigid polyvinyl chloride material highly filled with calcium carbonate. technical background [0002] Polyvinyl chloride is a general-purpose thermoplastic, which has the advantages of insulation, flame retardancy, chemical corrosion resistance, and good mechanical properties, and has been widely used in various fields. In recent years, with the active development of China's chemical building materials market, rigid polyvinyl chloride (UPVC) products have shown rapid development, and the proportion of rigid products will reach more than 50%. By 2010, more than 30% of new houses in my country's construction industry will use PVC doors and windows, and the demand will reach 60 million meters 2 ; The penetration rate of polyvinyl chloride drainage pipes will also reach more than 60%, and the development potential is remarkable. At present, the demand for UPVC is still growi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/26C08K5/11C08L27/06
Inventor 李春忠张玲孙水升
Owner EAST CHINA UNIV OF SCI & TECH
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