Environment-friendly cold-resistant polyvinyl chloride (PVC) waterproof coil and manufacturing technique thereof

A technology of polyvinyl chloride and waterproof coiled material, applied in the field of waterproof coiled material, can solve the problems of waterproof failure, poor cold resistance, cracking of PVC coiled material, etc., and achieve the effect of prolonging service life, good low temperature resistance and low comprehensive cost

Active Publication Date: 2014-02-19
天津市禹红建筑防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the plasticizer used in the PVC raw material of the polyvinyl chloride waterproof membrane for single-layer roofing is DOP, which is toxic and easy to volatilize and migrate, and is not cold-resistant, especially cold in winter. The existing PVC in the area will harden, and after several freeze-thaw cycles, the PVC membrane will crack and cause waterproofing failure

Method used

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  • Environment-friendly cold-resistant polyvinyl chloride (PVC) waterproof coil and manufacturing technique thereof
  • Environment-friendly cold-resistant polyvinyl chloride (PVC) waterproof coil and manufacturing technique thereof
  • Environment-friendly cold-resistant polyvinyl chloride (PVC) waterproof coil and manufacturing technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An environment-friendly cold-resistant polyvinyl chloride waterproof membrane: its composition is as follows in parts by mass:

[0025]

[0026] The manufacture craft of above-mentioned polyvinyl chloride waterproof coiled material, comprises:

[0027] Step 1: After mixing the above raw materials according to the number of parts, put the raw materials except the synthetic vegetable ester (produced by Suzhou Kunshan Yiget Chemical Co., Ltd.) into the high-speed mixer for stirring and blending. When the material temperature reaches 90-100 ° C, stop Stir; add synthetic vegetable ester, and then put it into a low-speed mixer and stir to 35-40°C, so as to prevent the PVC resin from attenuating and discoloring due to the temperature rise caused by high-speed stirring, and obtain a mixed base material;

[0028] Step 2: the mixed base material is fed to the twin-screw extruder with a screw feeder;

[0029] Step 3: plasticizing, the processing temperature of the twin-screw e...

Embodiment 2

[0036] An environment-friendly cold-resistant polyvinyl chloride waterproof membrane: its composition is as follows in parts by mass:

[0037]

[0038] The manufacture craft of above-mentioned polyvinyl chloride waterproof coiled material, comprises:

[0039] Step 1: After the above-mentioned raw materials are prepared according to the number of parts, put the raw materials except ethylene terpolymer (produced by DuPont) into the high-speed mixer for stirring and blending. When the material temperature reaches 90-100°C, stop stirring; add Ethylene terpolymer, and then put it into a low-speed mixer and stir to 35-40°C to obtain a mixed base material;

[0040] Step 2: the mixed base material is fed to the twin-screw extruder with a screw feeder;

[0041] Step 3: plasticizing, the processing temperature of the twin-screw extruder is: zone 1: 115°C-125°C, zone 2: 135°C-145°C, zone 3: 155°C-165°C, zone 4: 165°C ~175°C, zone five: 165°C~175°C, zone six: 155°C~165°C;

[0042] M...

Embodiment 3

[0046] An environment-friendly cold-resistant polyvinyl chloride waterproof membrane: its composition is as follows in parts by mass:

[0047]

[0048] The manufacture craft of above-mentioned polyvinyl chloride waterproof coiled material, comprises:

[0049] Step 1: After mixing the above raw materials according to the number of parts, put the raw materials except polyol benzoate (manufactured by Shijiazhuang Yongguang Chemical Technology Co., Ltd.) into a high-speed mixer for stirring and blending. The temperature of the materials reaches 90-100 °C. Stop stirring; add polyol benzoate, and then put it into a low-speed mixer and stir to 35-40°C to obtain a mixed base material;

[0050] Step 2: the mixed base material is fed to the twin-screw extruder with a screw feeder;

[0051] Step 3: plasticizing, the processing temperature of the twin-screw extruder is: zone 1: 115°C-125°C, zone 2: 135°C-145°C, zone 3: 155°C-165°C, zone 4: 165°C ~175°C, zone five: 165°C~175°C, zone s...

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Abstract

The invention provides an environment-friendly cold-resistant polyvinyl chloride (PVC) waterproof coil and a manufacturing technique thereof. The waterproof coil comprises the following components in parts by mass: 100 parts of PVC resin powder SG-5, 30-35 parts of synthetic plant ester, 2-4 parts of PVC heat stabilizer, 1-2 parts of calcium stearate, 1-2 parts of chlorinated paraffin wax and 30-40 parts of calcium carbonate. The synthetic plant ester, ethylene terpolymer or polyalcohol benzoate has the advantages of no toxicity and favorable low-temperature resistance, and thus, is used as a PVC plasticizer; and the environment-friendly heat stabilizer is added in the formula, thereby ensuring the environment-friendly performance and low-temperature resistance of the PVC waterproof coil. The coil adopts environment-friendly materials, does not have the problem of plasticizer volatilization, and prolongs the service life of the product (up to more than 15 years).

Description

technical field [0001] The invention belongs to the technical field of waterproof coiled material, and in particular relates to an environment-friendly cold-resistant polyvinyl chloride waterproof coiled material and a manufacturing process thereof. Background technique [0002] In construction engineering, PVC waterproof membrane is widely used on single-layer roofs. The membrane is a polymer membrane formed by plastic extrusion process with twin-screw extruder or single-screw extruder. [0003] In the prior art, the plasticizer used in the PVC raw material of the polyvinyl chloride waterproof membrane for single-layer roofing is DOP, which is toxic and easy to volatilize and migrate, and is not cold-resistant, especially cold in winter. The existing PVC in the area will harden, and after several freeze-thaw cycles, the PVC membrane will crack and cause waterproofing failure. Contents of the invention [0004] The problem to be solved by the present invention is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/08C08K13/02C08K5/098C08K3/26C08K5/103B29C47/92B29C59/04B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 杨学强李忠文张云
Owner 天津市禹红建筑防水材料有限公司
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