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PVC high-molecular waterproof coiled material

A polymer waterproof and waterproof membrane technology, applied in the field of building waterproof materials, can solve the problems of unreasonable anti-aging agent ratio, affecting the service life of waterproof, insufficient elasticity, etc., to increase color stability, prevent discoloration of finished products, Low volatility effect at high temperature

Active Publication Date: 2016-02-17
XIAMEN LIKASAM WATERPROOF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the proportion of plasticizers, fillers, lubricants, anti-aging agents, etc. used in the ingredients of polyvinyl chloride PVC waterproofing membranes is unreasonable, the aging resistance is poor, the elasticity is not flexible enough, and the elongation at break is low. Low-level defects directly affect the waterproof service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A PVC polymer waterproof membrane, which is composed of the following materials in parts by weight: 15 parts of polyvinyl chloride, 7 parts of oxidized polyethylene, 7 parts of polyethylene, 30 parts of heavy calcium carbonate, 7 parts of stearic acid, stabilizer 3 parts, 5 parts of barium sulfate, 25 parts of industrial white oil, 0.8 parts of filler, 0.2 parts of defoaming powder;

[0018] Put the above materials into the mixer, stir and mix evenly, pass through the hoist to the inside of the micro-feeder, heat up to 180°C, and cool down to 80°C after passing through the mold machine, and then the sheet is discharged from the forming extruder, and pulled to the crimping machine into a waterproof membrane.

Embodiment 2

[0020] A PVC polymer waterproof membrane, which is composed of the following materials in parts by weight: 10 parts of polyvinyl chloride, 10 parts of oxidized polyethylene, 8 parts of polyethylene, 20 parts of heavy calcium carbonate, 5 parts of stearic acid, stabilizer 2 parts, 3 parts of barium sulfate, 15 parts of industrial white oil, 2 parts of filler, 0.1 part of defoaming powder;

[0021] Put the above materials into the mixer, stir and mix evenly, pass through the hoist to the inside of the micro-feeder, heat up to 190°C, and cool down to 70°C after passing through the mold machine, to the forming extruder to discharge the sheet, and pull it to the crimping machine into a waterproof membrane.

Embodiment 3

[0023] A PVC polymer waterproof membrane, which is composed of the following materials in parts by weight: 20 parts of polyvinyl chloride, 5 parts of oxidized polyethylene, 6 parts of polyethylene, 35 parts of heavy calcium carbonate, 10 parts of stearic acid, stabilizer 5 parts, 6 parts of barium sulfate, 20 parts of industrial white oil, 1 part of filler, 0.3 parts of defoaming powder;

[0024] Put the above materials into the mixer, stir and mix evenly, pass through the hoist to the inside of the micro-feeder, heat up to 120°C, and cool down to 90°C after passing through the mold machine, and then the sheet is discharged from the forming extruder, and pulled to the crimping machine into a waterproof membrane.

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Abstract

A disclosed PVC high-molecular waterproof coiled material is composed of the following raw materials in parts by weight: 10-20 parts of polyvinyl chloride, 5-10 parts of oxidized polyethylene, 5-10 parts of polyethylene, 20-40 parts of heavy calcium carbonate, 5-10 parts of stearic acid, 2-5 parts of a stabilizing agent, 3-7 parts of barium sulfate, 15-30 parts of industrial white oil, 0.5-2 parts of a filler, and 0.1-0.5 part of a defoaming powder. The beneficial effects comprise that the coiled material is prepared by taking PVC material as a main material and matching with multiple auxiliary materials and performing a high temperature reaction. The coiled material is good in flexibility, high in elongation percentage, resistant to corrosion and resistant to acids and alkalis, and is improved in service life.

Description

technical field [0001] The invention relates to a PVC polymer waterproof coiled material, which belongs to the technical field of building waterproof materials. Background technique [0002] Polyvinyl chloride, English abbreviation PVC (Polyvinylchloride), is a vinyl chloride monomer (vinylchloridemonomer, referred to as VCM) in peroxide, azo compound and other initiators; or under the action of light and heat according to the mechanism of free radical polymerization. of polymers. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC is a white powder with an amorphous structure, a small degree of branching, a relative density of about 1.4, a glass transition temperature of 77-90°C, and begins to decompose at about 170°C. It has poor stability to light and heat. When exposed to sunlight, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration and rapid d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/30C08L23/06C08L91/06C08K13/02C08K3/26C08K5/09C08K3/30C08K5/098
CPCC08L27/06C08L91/06C08L2205/035C08L23/30C08L23/06C08K13/02C08K2003/265C08K5/09C08K2003/3045C08K5/098
Inventor 刘力嘉
Owner XIAMEN LIKASAM WATERPROOF ENG
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