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A weather-resistant exposed PVC/PE waterproof membrane without migration and its preparation method

A waterproofing membrane and weather-resistant technology, applied in the field of exposed PVC/PE waterproofing membranes, can solve the problems of unfavorable service life, reduced waterproofing effect, and failure of the membrane, and achieve mass production, prolong service life, and improve performance. excellent effect

Active Publication Date: 2022-03-22
SICHUAN SHUYANG WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photodegradation will cause a granular structure on the surface of the PVC coil, resulting in fine cracks, which is not good for the service life of the coil
In winter, especially in the north, when the temperature is too low, if the PVC waterproof membrane does not have excellent cold resistance, it will crack, which will reduce or fail the waterproof effect.

Method used

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  • A weather-resistant exposed PVC/PE waterproof membrane without migration and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Add PVC K70 100kg, HP661 40kg, 741 20kg, GM330 5kg, PEA-8 2kg, Ba / Zn stabilizer 2kg and rutile titanium dioxide R-960 10kg into the mixer, stir at high speed and heat up to 160±5°C to obtain Premix A.

[0056] (2) Add 0.2kg of stearic acid, 0.2kg of antioxidant Inganox 1076, 0.4kg of light stabilizer Tinuvin622 and 1kg of anti-mold and antibacterial agent VINYZENE to premix A, stir at a low speed of 170±5°C for 2min, and put Put the mixture into a cooling mixer, cool and stir until it is below 120°C, and then put it into a tray for later use to obtain premix B.

[0057] (3) Turn on the feeder and put the prepared premix B into the hopper.

[0058] (4) Turn on the machine to heat, and keep the temperature for 0.5 hours after reaching the set temperature.

[0059] (5) Turn on the extruder, and stop the extrusion after the polyethylene diaphragm is tested to be normal, and turn the extruder to the compound machine position.

[0060] (6) Restart the extruder, and when ...

Embodiment 2

[0063] (1) Add PVC 7059 120kg, HP661 70kg, 741 50kg, HP441 20kg, PEA-8 5kg, Ba / Zn stabilizer 8kg and rutile titanium dioxide R-996 45kg into the mixer, stir at a high speed and heat up to 160±5°C to obtain Premix A.

[0064] (2) Add 0.7kg of stearic acid, 0.6kg of antioxidant Inganox 1076, 1.2kg of light stabilizer Tinuvin622 and 4kg of anti-mold and antibacterial agent VINYZENE to premix A, stir at 170±5°C for 2min at low speed, and put Put the mixture into a cooling mixer, cool and stir until it is below 120°C, and then put it into a tray for later use to obtain premix B.

[0065] (3) Turn on the feeder and put the prepared premix B into the hopper.

[0066] (4) Turn on the machine to heat, and keep the temperature for 0.5 hours after reaching the set temperature.

[0067] (5) Turn on the extruder, and stop the extrusion after the polyethylene diaphragm is tested to be normal, and turn the extruder to the compound machine position.

[0068] (6) Restart the extruder, and w...

Embodiment 3

[0071] (1) Add PVC TK700 110kg, HP661 50kg, 741 30kg, HP4051 15kg, PEA-8 3kg, Ba / Zn stabilizer 5kg and rutile titanium dioxide R-996 25kg into the mixer, stir at high speed and heat up to 160±5°C to obtain Premix A.

[0072] (2) Add 0.5kg of stearic acid, 0.4kg of antioxidant Inganox 1076, 0.8kg of light stabilizer Tinuvin622 and 3kg of anti-mold and antibacterial agent VINYZENE to premix A, stir at 170±5°C for 2min at low speed, and put Put the mixture into a cooling mixer, cool and stir until it is below 120°C, and then put it into a tray for later use to obtain premix B.

[0073] (3) Turn on the feeder and put the prepared premix B into the hopper.

[0074] (4) Turn on the machine to heat, and keep the temperature for 0.5 hours after reaching the set temperature.

[0075] (5) Turn on the extruder, and stop the extrusion after the polyethylene diaphragm is tested to be normal, and turn the extruder to the compound machine position.

[0076] (6) Restart the extruder, and w...

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Abstract

The invention discloses a non-migration weather-resistant exposed PVC waterproof coiled material and a preparation method thereof. The raw materials include the following substances in parts by weight: 100-120 parts of PVC, 40-70 parts of HP661, 20-50 parts of HP661, 20-50 parts of HP661, cold-resistant modified 5-20 parts of stabilizer, 2-5 parts of PEA-8, 10-45 parts of titanium dioxide, 2-8 parts of stabilizer, 0.2-0.7 parts of stearic acid, 0.2-0.6 parts of antioxidant, 0.4-0 parts of light stabilizer 1.2 parts, 1 to 4 parts of anti-mildew and antibacterial agent. The raw material of the waterproof coiled material of the present invention does not contain liquid plasticizer, so there will be no migration, and the weather resistance is good. The addition of a specific cold resistance modifier further ensures the good weather resistance of the waterproof coiled material of the present invention. Good stability, can be used outdoors for a long time.

Description

technical field [0001] The invention relates to the field of exposed PVC / PE waterproof coiled material, in particular to a weather-resistant exposed PVC / PE waterproof coiled material without migration. Background technique [0002] PVC waterproof membrane is made of polyvinyl chloride resin as the main raw material, adding plasticizers, stabilizers, anti-aging agents, fillers, kneading, mixing, (granulation), calendering (or extrusion), inspection, coiling, Prepared by packaging and other processes. [0003] PVC waterproof membrane has the following advantages, so it is widely used: ①Good waterproof effect and high tensile strength. The tensile strength of PVC waterproofing membrane is twice that of chlorinated polyethylene waterproofing membrane, with high crack resistance, good waterproof and impervious effects. ②Long service life. According to the anti-aging test, its service life is as long as 20 years. ③ High elongation at break. The elongation at break is more tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/06C08L23/08C08K3/22C08K5/09
CPCC08L27/06C08L23/06C08L23/0815C08K2003/2241C08L2207/062C08L23/08C08K3/22C08K5/09
Inventor 骆晓彬杜勇
Owner SICHUAN SHUYANG WATERPROOF MATERIAL