Industrial grafting copolymerization blending modified PVC tubular product

A PVC pipe, blending modification technology, applied in the field of industrial graft copolymerization blending modified PVC pipe, can solve the problems of unfavorable PVC-U pipe application, insufficient flame retardancy, smoke generation, etc., and reduce pipelines. The effect of missing medium, improving safety in use, and avoiding corrosion damage

Pending Publication Date: 2018-11-06
宁夏青龙塑料管材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PVC-U pipes have poor impact resistance, brittle performance at low temperature, insufficient flame retardancy, smoke will be produced when burned, not resistant to high temperatures, and limited corrosion resistance. These defects are not conducive to the use of PVC-U pipes in the field of industrial media and hot water transportation. Applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An industrial graft copolymerization blending modified PVC pipe material, raw materials are prepared according to the following proportions:

[0022] 100 parts of graft copolymerized polyvinyl chloride PVC resin (chlorine content above 67%), 2 parts of organotin stabilizer, 0.6 part of microcrystalline wax, 0.2 part of oxidized polyethylene wax, CPE (corresponding Chinese name, and in the claim 1) 2 parts, ACR401 (corresponding Chinese name, and in the composition range described in claim 1) 1 part, 5 parts of SRM impact modifier, 3 parts of nano-scale active calcium carbonate, nano-scale sulfuric acid 1 part of barium, 1 part of nano-sized talc powder, 0.05 part of carbon black as a coloring agent, 0.6 part of antimony trioxide, and 1.0 part of aluminum hydroxide.

[0023] The above-mentioned ingredients are hot-mixed and cold-mixed, and then extruded to form a pipe. After testing: resistance to brine corrosion at 30°C, no change for 1000 hours, no change in the molec...

Embodiment 2

[0025] An industrial graft copolymerization blending modified PVC pipe material, raw materials are prepared according to the following proportions:

[0026] Graft copolymerized polyvinyl chloride resin (chlorine content above 67%) 100 parts, organic calcium zinc stabilizer 3.9 parts, stearic acid 0.4 parts, oxidized polyethylene wax 0.5 parts, ACR (401) 0.5 parts, CPE 2 parts, MBS 2 parts, 4 parts of nano-calcium carbonate, 1.5 parts of nano-scale barium sulfate, 0.05 part of colorant carbon black, 0.6 part of tricresyl phosphate, and 0.8 part of aluminum hydroxide.

[0027] The above-mentioned ingredients are hot-mixed and cold-mixed, and then extruded to form a pipe. After testing: corrosion resistance, immersion in 30 ℃, 40% brine for 1000 hours, the molecular structure of the pipe surface does not change through spectral analysis, and the tensile strength of the tensile test after the corrosion resistance test is over 42MPa. The 50% compression flat test of the pipe is qu...

Embodiment 3

[0029] An industrial graft copolymerization blending modified PVC pipe material, raw materials are prepared according to the following proportions:

[0030] Graft copolymerized polyvinyl chloride resin (chlorine content above 67%) 100 parts, organotin stabilizer 2.2 parts, montan wax 0.5 parts, oxidized polyethylene wax 0.3 parts, stearic acid 0.2 parts, CPE 2 parts, SRM 2 parts, 1 part of ACR401, 8 parts of superfine light calcium carbonate, 1.5 parts of nanometer superfine calcium carbonate, 1.5 parts of nanometer talcum powder, 0.01 part of colorant carbon black, 0.8 part of tricresyl phosphate, 0.8 part of aluminum hydroxide, three Antimony oxide 1.0 parts.

[0031] The above-mentioned ingredients are hot-mixed and cold-mixed, and then extruded to form a pipe. After testing: corrosion resistance, immersion in 30 ℃, 40% brine for 1000 hours, the molecular structure of the pipe surface does not change through spectral analysis, and the tensile strength of the tensile test a...

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Abstract

The invention discloses an industrial grafting copolymerization blending modified PVC tubular product. The industrial grafting copolymerization blending modified PVC tubular product comprises 50 to 100 parts of grafting copolymerization polyvinyl chloride (PVC) resin, 2.0 to 3.0 parts of a stabilizing agent, 1 to 1.4 parts of a lubricant, 1.0 to 2.0 parts of a processing auxiliary agent, 3.0 to 6.0 parts of an impact modifier, 1.5 to 3 parts of a function modifier, 1.8 to 3.6 parts of a reinforcing agent, 0.01 to 0.05 part of a colouring agent, and 0.5 to 0.8 part of a fire retardant. According to a preparation method, full utilization of the high chlorine performance of grafting copolymerization polyvinyl chloride, the corrosion resistance of nanometer barium sulfate, and the cooperativeflame retardation smoke inhibiting effect of antimony oxide, tricresyl phosphate, or aluminium hydroxide is adopted, and an excellent toughening enhancing material is adopted, so that the industrial grafting copolymerization blending modified PVC tubular product is safe to be used in the fields of industrial corrosive medium conveying and fire-fighting water supply, and possesses corrosion resistance, flame resistance, internal pressure resistance, and impact resistance.

Description

technical field [0001] The invention belongs to the field of industrial PVC pipes, and in particular relates to a blending and modification formula design technology using graft copolymerized PVC resin, which is produced and prepared by using a reinforcing agent, a functional modifier, an impact modifier, and a flame-retardant material. Industrial graft copolymerization and blending modified PVC pipes. Background technique [0002] PVC-U pipes are widely used in the field of water supply and drainage, and have certain advantages such as acid resistance, alkali resistance, corrosion resistance, and internal pressure resistance. However, PVC-U pipes have poor impact resistance, brittle performance at low temperature, insufficient flame retardancy, smoke will be produced when burned, not resistant to high temperatures, and limited corrosion resistance. These defects are not conducive to the use of PVC-U pipes in the field of industrial media and hot water transportation. Appli...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L23/28C08L33/04C08K9/04C08K3/26C08K3/30C08K3/34C08K3/22C08K5/523
CPCC08K2003/2227C08K2003/265C08K2003/3045C08K2201/011C08L51/003C08L2201/02C08L2203/18C08L2205/035C08L23/286C08L33/04C08K9/04C08K3/26C08K3/30C08K3/34C08K3/22C08K3/2279C08K5/523
Inventor 李晓轩冯学江李永峰张红梅李华李志龙赵明亮
Owner 宁夏青龙塑料管材有限公司
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