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Coloured PVC waterproof roll and its preparation method

A polyvinyl chloride, waterproofing membrane technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of thermal stability, poor initial coloration, poor long-term weather resistance, and difficulty in direct use.

Inactive Publication Date: 2006-10-11
JIANGSU HUAHONG RUBBER & PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, their thermal stability (including initial coloring and long-term weather resistance) is very poor, and it is much more difficult to use directly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 100 parts of PVC resin, 35 parts of dioctyl phthalate, 10 parts of powdered nitrile rubber, 20 parts of calcium carbonate, 1.5 parts of rare earth stabilizer, 0.3 parts of barium stearate and 0.2 parts of stearic acid and put them in a stirring In the container, stir and mix evenly to make a mixture, and set aside;

[0023] Step 2: Mixing and plasticizing

[0024] Put the above-mentioned mixture into a closed plastic refining machine, heat it to 120°C-140°C while stirring, carry out banburying and plasticization, and the plasticized material enters the filter extruder to filter, extrude and pulverize.

[0025] Step 3, the second plasticization, film out

[0026] Put the pellets plasticized for the first time into the forming extruder, plasticize and knead the materials again, and evenly release the sheets, and then pass through 80°C heated rolls and calendered to form waterproof membranes.

Embodiment 2

[0028] Take 100 parts of PVC resin, 40 parts of tributyl citrate, 8 parts of chlorinated polyethylene, 40 parts of calcium carbonate, 2 parts of rare earth stabilizer, 0.2 parts of barium stearate and 0.3 parts of stearic acid in a blender , Stir and mix evenly to make a compound, put the above compound into a closed plastic mixer, heat it to 130°C while stirring, carry out banburying and plasticization, and the plasticized material enters the filter extruder to filter, extrude and pulverize; Put the pellets plasticized for the first time into the forming extruder, plasticize and knead the materials again, and evenly release the sheets, and then pass through 85°C heated roller calenders to form waterproof membranes.

Embodiment 3

[0030] Take 100 parts of PVC resin, 30 parts of dioctyl phthalate, 12 parts of powdered nitrile rubber, 30 parts of calcium carbonate, 1 part of rare earth stabilizer, 0.4 part of barium stearate and 0.1 part of stearic acid and put them in a stirring In the container, stir and mix evenly to make a mixture, and set aside;

[0031] Step 2: Mixing and plasticizing

[0032] Put the above-mentioned mixture into a closed plastic refining machine, heat it to 140°C while stirring, carry out banburying and plasticization, and the plasticized material enters the filter extruder to filter, extrude and pulverize.

[0033] Step 3, the second plasticization, film out

[0034] Put the pellets plasticized for the first time into the forming extruder, plasticize and knead the mixture again, and evenly release the sheets, and then pass through the heated rollers at 75°C to calender into waterproof membranes.

[0035] In above-mentioned embodiment 1~3, the rare earth thermal stabilizer that a...

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PUM

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Abstract

The invention relates to a colored polyvinyl chloride water-proof coiled material, which is prepared from the following constituents (by weight portions): PVC resin 100 parts, phthalandione dioctyl or tributyl citrate 35+-5 parts, powdered nitrile rubber or chlorinated polyethylene 10+-2 parts, calcium carbonate 30+-10 parts, rare earth heat stabilizer 1.5+-0.5 parts, barium stearate0.3+-0.1 part, stearic acid 0.2+-0.1 part. The invention also discloses its preparing process.

Description

Technical field: [0001] The invention relates to a waterproof coiled material, in particular to a colored polyvinyl chloride waterproof coiled material and a preparation method thereof. It belongs to the technical field of waterproof materials. Background technique: [0002] Polyvinyl chloride (PVC) waterproof membrane has both high toughness and great strength, good anti-oxidation, anti-ultraviolet, temperature resistance (high temperature 80 ℃, low temperature -30 ℃), chemical corrosion resistance, no environmental pollution. It is suitable for waterproofing and anti-seepage in civil engineering such as pools, dams, tunnels, and planting levels. In the above environment, the focus of research on PVC waterproofing membrane is to improve its aging performance, that is, after long-term use of PVC waterproofing membrane, its strength and toughness can remain stable or change little, so that the membrane will not change. Hardness, cracks cause water leakage, and solve the pr...

Claims

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Application Information

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IPC IPC(8): C09K3/18C08K3/26C08K5/09C08L27/06
Inventor 胡士勤沈春林郑昌仁承全兴王开东方再荣胡品贤顾武英
Owner JIANGSU HUAHONG RUBBER & PLASTIC
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