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Anticorrosive PVC modified material and preparation method thereof

A modified material and anti-corrosion technology, applied in the field of anti-corrosion PVC modified material and its preparation, can solve the problems of poor anti-corrosion performance, poor thermal stability, poor fluidity, etc., and achieve excellent impact resistance, excellent processing performance, good compatibility

Inactive Publication Date: 2016-05-11
广东祺龙科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has light weight, high strength, insulation, flame retardancy, corrosion resistance, It has the advantages of excellent comprehensive performance, low price and wide source of raw materials; but it also has the following disadvantages: 1. Poor toughness, easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. Large, the lower limit of general PVC products is -15°C, and the lower limit of soft PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decomposes more rapidly when it is higher than 150°C. The melting temperature of PVC is about 210°C; 3. The viscosity of PVC is extremely high and its fluidity is extremely poor, which limits its use to a certain extent.
[0006] The above-mentioned existing PVC materials have poor anti-corrosion properties, therefore, it is particularly necessary to develop an anti-corrosion PVC material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] An anti-corrosion PVC modified material, the anti-corrosion PVC modified material includes the following parts by weight of raw materials:

[0056] 80 parts of PVC resin

[0057] Plasticizer 50 parts

[0058] 20 parts of filler

[0059] Impact modifier 4 parts

[0060] 3 parts of heat stabilizer

[0061] Synergist 1 part

[0062] Lubricant 0.6 parts

[0063] 0.3 parts of antioxidant.

[0064] The PVC resin is an ethylene PVC resin with a degree of polymerization of 1600.

[0065] The plasticizer is a mixture of non-migrating plasticizer PN-1030 and epoxy soybean oil in a weight ratio of 13:1.

[0066] The filler is a mixture composed of heavy calcium carbonate, light calcium carbonate and kaolin in a weight ratio of 1:0.8:1.

[0067] The impact modifier is chlorinated polyethylene with a chlorine content of 25%.

[0068] The heat stabilizer is a mixture composed of a calcium-zinc composite heat stabilizer and a hydrotalcite heat stabilizer with a weight ratio of 0.8:1; the calcium-zinc c...

Embodiment 2

[0077] An anti-corrosion PVC modified material, the anti-corrosion PVC modified material includes the following parts by weight of raw materials:

[0078] 90 parts of PVC resin

[0079] 55 parts of plasticizer

[0080] 22 parts of filler

[0081] Impact modifier 5 parts

[0082] Heat stabilizer 3.5 parts

[0083] Synergist 1.2 parts

[0084] 0.7 parts of lubricant

[0085] 0.4 parts of antioxidant.

[0086] The PVC resin is an ethylene PVC resin with a degree of polymerization of 1700.

[0087] The plasticizer is a mixture of non-migrating plasticizer PN-1030 and epoxy soybean oil in a weight ratio of 13:1.

[0088] The filler is a mixture composed of heavy calcium carbonate, light calcium carbonate and kaolin in a weight ratio of 1-2:0.9:1.

[0089] The impact modifier is chlorinated polyethylene with a chlorine content of 30%.

[0090] The heat stabilizer is a mixture composed of a calcium-zinc composite heat stabilizer and a hydrotalcite heat stabilizer in a weight ratio of 0.9:1; the calciu...

Embodiment 3

[0099] An anti-corrosion PVC modified material, the anti-corrosion PVC modified material includes the following parts by weight of raw materials:

[0100] 100 parts of PVC resin

[0101] 60 parts of plasticizer

[0102] 25 parts of filler

[0103] Impact modifier 6 parts

[0104] 4 parts of heat stabilizer

[0105] Synergist 1.5 parts

[0106] 0.8 parts of lubricant

[0107] Antioxidant 0.5 parts.

[0108] The PVC resin is an ethylene PVC resin with a degree of polymerization of 1800.

[0109] The plasticizer is a mixture of non-migrating plasticizer PN-1030 and epoxy soybean oil in a weight ratio of 14.5:1.

[0110] The filler is a mixture composed of heavy calcium carbonate, light calcium carbonate and kaolin in a weight ratio of 1.5:1:1.

[0111] The impact modifier is chlorinated polyethylene with a chlorine content of 35%.

[0112] The heat stabilizer is a mixture composed of a calcium-zinc composite heat stabilizer and a hydrotalcite heat stabilizer in a weight ratio of 1:1; the calcium-z...

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Abstract

The invention relates to the technical field of PVC materials, and concretely relates to an anticorrosive PVC modified material and a preparation method thereof. The anticorrosive PVC modified material comprises, by weight, 80-120 parts of PVC resin, 50-70 parts of a plasticizer, 20-30 parts of a filler, 4-8 parts of an impact modifier, 3-5 parts of a heat stabilizer, 1-2 parts of a synergistic agent, 0.6-1.0 part of a lubricant and 0.3-0.7 parts of an antioxidant. All performances of the anticorrosive PVC modified material prepared through strictly controlling the weight ratio of all above raw materials exceed national stands, and the anticorrosive PVC modified material has the advantages of good anticorrosion effect, environmental protection, excellent temperature and weather resistance, high strength, excellent impact resistance, good flame retardation effect, excellent processing properties and excellent comprehensive performances.

Description

Technical field [0001] The invention relates to the technical field of PVC materials, in particular to a corrosion-resistant PVC modified material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general thermoplastics. It has the advantages of light weight, high strength, insulation, flame retardant, corrosion resistance, excellent comprehensive performance, low price and wide raw material sources; but also There are the following shortcomings: 1. Poor toughness, easily brittle and cracked when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. The lower limit of use for general PVC products is -15°C, soft The lower limit of the use of PVC is -30℃; 2. The thermal stability is poor. It starts to decompose HCl at 100℃, and decomposes more rapidly when it is higher than 150℃. The melting temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08L23/28C08K13/02C08K3/26C08K3/34C08K3/22C08K3/38B29C47/92B29C48/92
CPCC08L27/06B29C48/92B29C2948/92704C08K2201/003C08K2201/014C08L2201/02C08L2201/08C08L2205/035C08L91/00C08L23/286C08K13/02C08K2003/265C08K3/346C08K3/2279C08K2003/387C08K2003/2241
Inventor 宁建华
Owner 广东祺龙科技有限公司
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