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Polyvinyl chloride geomembrane modified by nitrile-butadiene rubber

A technology of nitrile rubber and polyvinyl chloride, applied in marine engineering, water conservancy engineering, construction and other directions, can solve the problems of increasing the reinvestment cost of enterprises, affecting the use effect of geomembrane, excessive stretching of geomembrane, etc., saving money, Superior sealing performance and improved service life

Inactive Publication Date: 2010-10-20
TIANJIN TIANSU SCI & TECH GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common geomembranes on the market are prone to damage during engineering construction, or are punctured and damaged by stones or other sharp objects, or are bulged when they are subjected to water pressure and earth pressure due to lack of restraint support. , or the stress concentration caused by the jacking of the lower gas or liquid during the filling process leads to damage. At the same time, factors such as temperature, gravity, soil displacement and water level changes are also likely to cause excessive stretching, tearing or abrasion of the geomembrane. , these will affect the use effect of geomembrane to varying degrees, reduce its service life, and then increase the re-investment cost of the enterprise, resulting in certain economic losses

Method used

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  • Polyvinyl chloride geomembrane modified by nitrile-butadiene rubber
  • Polyvinyl chloride geomembrane modified by nitrile-butadiene rubber
  • Polyvinyl chloride geomembrane modified by nitrile-butadiene rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Toughened, reinforced and good sealing polyvinyl chloride geomembrane modified by nitrile rubber, the proportion of each component of the preparation is: (A) 100 parts by weight of polyvinyl chloride resin; (B) dioctyl phthalate 40PHR ; (C) dioctyl adipate 5PHR; (D) epoxidized soybean oil 6PHR; (E) heat stabilizer 2.8PHR; (F) nitrile rubber 5PHR; (G) calcium carbonate 15PHR; (H) stearin Acid 0.2PHR; (I) white carbon black 2PHR; (J) talcum powder 6PHR; (K) appropriate amount of pigment. Wherein heat stabilizer selects liquid stabilizer and metal soap stabilizer for use in combination, and metal soap stabilizer selects barium stearate and zinc stearate for use in combination.

Embodiment 2

[0031] Toughened, reinforced and good sealing polyvinyl chloride geomembrane modified by nitrile rubber, the proportion of each component of the preparation is: (A) polyvinyl chloride resin 100 parts by weight; (B) dioctyl phthalate 50PHR ; (C) dioctyl adipate 8PHR; (D) epoxidized soybean oil 4PHR; (E) heat stabilizer 2.5PHR; (F) nitrile rubber 3PHR; (G) calcium carbonate 20PHR; (H) stearin Acid 0.2PHR; (I) white carbon black 2PHR; (J) talcum powder 6PHR; (K) appropriate amount of pigment. Wherein the heat stabilizer is used in combination with a liquid stabilizer and a metal soap stabilizer, and the metal soap stabilizer is used in combination with barium stearate and zinc stearate.

[0032] The above components refer to the table below.

[0033] After weighing the components in 1 in Table 1, stir with a high-speed mixer for 270s, discharge at about 92°C, and then internally knead with a 10,000-horsepower machine, then fully knead in two open plastic mixers, and extrude Aft...

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Abstract

The invention relates to a polyvinyl chloride geomembrane modified by nitrile-butadiene rubber, belonging to the technical field of the geomembrane. The polyvinyl chloride geomembrane modified by the nitrile-butadiene rubber is characterized in that the mixture ratio composition of the geomembrane takes polyvinyl chloride resin 100 as reference, and the geomembrane comprises the components based on parts by weight: 20-50 dioctyl phthalate, 2-10 dioctyl adipate, 2-10 epoxidized soybean oil, 2-5 heat stabilizer, 1-5 nitrile-butadiene rubber, 10-20 calcium carbonate, 0.1-0.5 stearic acid, 1-5 white carbon black and 1-6 talcum powder. The modified polyvinyl chloride geomembrane has the advantages of good hand feeling of rubber, high toughness and strength, excellent sealing performance, saving cost, being beneficial to environmental protection, being long in service life, and the like.

Description

technical field [0001] The invention belongs to the technical field of geomembranes, in particular to a polyvinyl chloride geomembrane modified by nitrile rubber. Background technique [0002] Sea reclamation refers to building dikes on beaches or shallow seas to isolate external seawater, and draining and draining the water in the dikes to make them land projects. [0003] At present, the common geomembranes on the market are prone to damage during engineering construction, or are punctured and damaged by stones or other sharp objects, or are bulged when they are subjected to water pressure and earth pressure due to lack of restraint support. , or the stress concentration caused by the jacking of the lower gas or liquid during the filling process leads to damage. At the same time, factors such as temperature, gravity, soil displacement and water level changes are also likely to cause excessive stretching, tearing or abrasion of the geomembrane. , These will affect the use ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L9/02C08K13/02C08K5/12C08K5/11C08K5/1515C08K3/26C08K5/09C08K3/36C08K3/34C08K5/098E02B3/16
Inventor 汤洪臣张虹
Owner TIANJIN TIANSU SCI & TECH GROUP
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