CN112126178A - Aging-resistant PVC plastic corrugated board and preparation method thereof - Google Patents
Aging-resistant PVC plastic corrugated board and preparation method thereof Download PDFInfo
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- CN112126178A CN112126178A CN202011061105.XA CN202011061105A CN112126178A CN 112126178 A CN112126178 A CN 112126178A CN 202011061105 A CN202011061105 A CN 202011061105A CN 112126178 A CN112126178 A CN 112126178A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 68
- 239000004033 plastic Substances 0.000 title claims abstract description 68
- 230000032683 aging Effects 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 136
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 82
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 82
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 68
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 30
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 30
- 239000006229 carbon black Substances 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 239000004698 Polyethylene Substances 0.000 claims abstract description 24
- 239000000049 pigment Substances 0.000 claims abstract description 24
- -1 polyethylene Polymers 0.000 claims abstract description 24
- 229920000573 polyethylene Polymers 0.000 claims abstract description 24
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 18
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 18
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 18
- 239000003549 soybean oil Substances 0.000 claims abstract description 18
- 239000008117 stearic acid Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 20
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 18
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 17
- WRVWOBJLGCVCSC-UHFFFAOYSA-N tris(1,2,2,6,6-pentamethylpiperidin-3-yl) phosphite Chemical compound CC1(C)N(C)C(C)(C)CCC1OP(OC1C(N(C)C(C)(C)CC1)(C)C)OC1C(C)(C)N(C)C(C)(C)CC1 WRVWOBJLGCVCSC-UHFFFAOYSA-N 0.000 claims description 14
- 229920001903 high density polyethylene Polymers 0.000 claims description 12
- 239000004700 high-density polyethylene Substances 0.000 claims description 12
- 239000002250 absorbent Substances 0.000 claims description 10
- 230000002745 absorbent Effects 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000460 chlorine Substances 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 238000006467 substitution reaction Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000197 pyrolysis Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 4
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- LDHBWEYLDHLIBQ-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide;hydrate Chemical compound O.[OH-].[O-2].[Fe+3] LDHBWEYLDHLIBQ-UHFFFAOYSA-M 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses an aging-resistant PVC plastic corrugated board and a preparation method thereof, wherein the aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight: 70-80 parts of polyvinyl chloride, 17-23 parts of light calcium carbonate, 17-23 parts of heavy calcium carbonate, 3-5 parts of chlorinated polyethylene, 3-4 parts of composite lead, 1.5-2 parts of processing aid, 0.5-1 part of stearic acid, 0.5-1 part of polyethylene wax, 0.8-1.7 parts of pigment, 0.8-1.5 parts of carbon black, 2-2.7 parts of epoxidized soybean oil, 0.05-0.15 part of anti-aging agent and 0.05-0.15 part of anti-ultraviolet agent. The aging resistance of the PVC plastic corrugated board of the aging-resistant PVC plastic corrugated board is excellent; the bending strength is high, the impact strength of the notch of the simply supported beam is high, the toughness is good, the mechanical property is good, the load resistance is strong, and cracks and other damages are not easy to generate under the action of external force in the using process; long service life and wide market application prospect.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to an aging-resistant PVC plastic corrugated board and a preparation method thereof.
Background
The plastic corrugated board, also called plastic tile, is mainly used for roofing of modern buildings, and has the function of not only shielding the house from wind and rain. For example, a planting roof, one of the purposes of which is to plant plants, can be a plastic tile for a greenhouse. For another example, heat insulation performance is important for heat insulation roofing, and heat dissipation, ventilation and other problems of roofing need to be considered in construction, in which case, heat insulation sandwich tiles are used. Particularly, with the arrival of the industrialized era, roofing materials required by a large number of industrial plants form a new large market. Compared with the characteristics of the roofing material of the dwellings, the roofing material of the industrial factory building not only requires the materials to be waterproof, soundproof, heat-insulated and heat-preservation, but also needs to be light, environment-friendly and corrosion-resistant, so that the metal steel plate is replaced by the strong composite tile.
Important features of the plastic corrugated board are: (1) the tile is in a wave shape, a straight line shape or a concave arc shape in a front view, and one side edge of the front surface of the tile is provided with a longitudinal groove; (2) the back of the tile on the other side is provided with a longitudinal rib which can be buckled with the longitudinal groove.
Polyvinyl chloride, abbreviated as PVC in English, is an initiator of vinyl chloride monomer in peroxide, azo compounds and the like; or a polymer polymerized by a free radical polymerization mechanism under the action of light and heat. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.
PVC is white powder with an amorphous structure, the branching degree is small, the relative density is about 1.4, the glass transition temperature is 77-90 ℃, decomposition starts at about 170 ℃, the stability to light and heat is poor, the PVC can be decomposed to generate hydrogen chloride at more than 100 ℃ or after long-time sunshine insolation, further the hydrogen chloride is automatically catalyzed and decomposed to cause color change, the physical and mechanical properties are also rapidly reduced, and a stabilizer must be added in practical application to improve the stability to heat and light.
The molecular weight of the PVC produced industrially is generally within the range of 5-11 ten thousand, and the PVC has larger polydispersity, and the molecular weight is increased along with the reduction of polymerization temperature; without a fixed melting point, softening begins at 80-85 ℃, the temperature of 130 ℃ becomes a viscoelastic state, and the temperature of 160-180 ℃ begins to change into a viscous state; the composite material has good mechanical properties, the tensile strength is about 60MPa, and the impact strength is 5-10 kJ/m 2; has excellent dielectric properties.
PVC has been the most widely used plastic in the world and is used in a very wide range of applications. The product has wide application in building materials, industrial products, daily necessities, floor leathers, floor tiles, artificial leathers, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers and the like.
However, the PVC plastic corrugated panels used at present have the following problems:
1. the anti-aging performance is poor, and the mechanical property is greatly reduced under sunlight easily due to accelerated aging caused by ultraviolet irradiation, so that the paint cannot be used and has short service life;
2. after modification, the bending strength is reduced, the notch impact strength of the simply supported beam is reduced, the toughness is poor, the mechanical property is poor, the load resistance is good, and in the using process, cracks and other damages are easy to generate under the action of external force, so that the simply supported beam cannot be used, and the service life is short.
Disclosure of Invention
Based on the above situation, the present invention is directed to an aging-resistant PVC plastic corrugated board and a method for manufacturing the same, which can effectively solve the above problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight:
70-80 parts of polyvinyl chloride, 17-23 parts of light calcium carbonate, 17-23 parts of heavy calcium carbonate, 3-5 parts of chlorinated polyethylene, 3-4 parts of composite lead, 1.5-2 parts of processing aid, 0.5-1 part of stearic acid, 0.5-1 part of polyethylene wax, 0.8-1.7 parts of pigment, 0.8-1.5 parts of carbon black, 2-2.7 parts of epoxidized soybean oil, 0.05-0.15 part of anti-aging agent and 0.05-0.15 part of anti-ultraviolet agent;
the particle size of the light calcium carbonate is 0.01 um-0.03 um;
the particle size of the heavy calcium carbonate is 0.6-0.9 um;
the particle size of the carbon black is 8-10 nm;
the anti-aging agent is a mixture of an antioxidant 1098 and an antioxidant 168;
the ultraviolet resistant agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531.
Preferably, the aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight: 75 parts of polyvinyl chloride, 20 parts of light calcium carbonate, 20 parts of heavy calcium carbonate, 4.5 parts of chlorinated polyethylene, 3.5 parts of composite lead, 1.8 parts of processing aid, 0.7 part of stearic acid, 0.7 part of polyethylene wax, 1 part of pigment, 1 part of carbon black, 2.3 parts of epoxidized soybean oil, 0.1 part of anti-aging agent and 0.1 part of anti-ultraviolet agent.
Preferably, the chlorinated polyethylene is prepared by substitution reaction of high-density polyethylene and chlorine.
Preferably, the polyethylene wax is a polyethylene wax produced by pyrolysis of high density polyethylene.
Preferably, the mass ratio of the antioxidant 1098 to the antioxidant 168 is 1: (0.65-0.75).
Preferably, the mass ratio of the tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite to the ultraviolet absorbent UV-531 is 1: (1.5-1.7).
Preferably, the processing aid is a high-efficiency processing aid WAC 88.
Preferably, the pigment is at least one of red iron oxide, yellow iron, phthalocyanine blue and phthalocyanine green.
The invention also provides a preparation method of the aging-resistant PVC plastic corrugated board, which comprises the following steps:
A. respectively weighing the raw materials of the aging-resistant PVC plastic corrugated board;
B. firstly putting light calcium carbonate, heavy calcium carbonate, composite lead, a processing aid, stearic acid, pigment, carbon black, epoxidized soybean oil, an anti-aging agent and an anti-ultraviolet agent into a high-speed mixer, and mixing for 15-20 min; then, the rest raw materials are put into a high-speed mixer, the temperature is increased to 110-120 ℃, and the mixing is continued for 20-30 min; then cooling to 40-70 ℃, and continuously mixing for 20-40 min to obtain a mixture;
C. and feeding the mixture into an extruder, performing extrusion molding, and cooling and shaping to obtain the aging-resistant PVC plastic corrugated board.
Preferably, the temperature of the extruder is controlled to be 180-200 ℃ during extrusion molding, and the temperature of the extrusion die is controlled to be 185-230 ℃.
Preferably, the temperature for cooling and shaping is controlled to be 48-52 ℃.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the aging-resistant PVC plastic corrugated board disclosed by the invention is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polyvinyl chloride, light calcium carbonate, heavy calcium carbonate, chlorinated polyethylene, composite lead, a processing aid, stearic acid, polyethylene wax, pigment, carbon black, epoxy soybean oil, an anti-aging agent and an anti-ultraviolet agent in a proper proportion, so that the advantages of the polyvinyl chloride, the light calcium carbonate, the heavy calcium carbonate, the chlorinated polyethylene, the composite lead, the processing aid, the stearic acid, the polyethylene wax, the pigment, the carbon black, the epoxy soybean oil, the anti-aging agent and the anti-ultraviolet agent are fully exerted, the advantages; the bending strength is high, the impact strength of the notch of the simply supported beam is high, the toughness is good, the mechanical property is good, the load resistance is strong, and cracks and other damages are not easy to generate under the action of external force in the using process; long service life and wide market application prospect.
The light calcium carbonate and the heavy calcium carbonate in proper proportion are added into the aging-resistant PVC plastic corrugated board, and are matched with each other to play a good synergistic effect, so that the aging-resistant PVC plastic corrugated board has a good synergistic enhancement effect, and the bending strength and the simple beam notch impact strength of the aging-resistant PVC plastic corrugated board are greatly improved; the inventor finds out through a large number of experiments that: for the raw material system of the invention, the reinforcing effect of the single use of light calcium carbonate or heavy calcium carbonate is obviously not matched with the addition of the light calcium carbonate and the heavy calcium carbonate in proper proportion, the single use of the light calcium carbonate has poor reinforcing effect and limited strength improvement, the single use of the heavy calcium carbonate also has the problems of poor reinforcing effect and limited strength improvement, and the notch impact strength of the simply supported beam is greatly reduced and becomes brittle.
The chlorinated polyethylene is added into the aging-resistant PVC plastic corrugated board in a proper proportion, the chlorinated polyethylene can increase the compatibility of other nonpolar components in the raw material system, can also improve the mechanical properties of the aging-resistant PVC plastic corrugated board, such as the bending strength, the simply supported beam notch impact strength and the like, and is matched with other components, so that the aging-resistant PVC plastic corrugated board is ensured to have excellent aging resistance; and the bending strength is high, the impact strength of the notch of the simply supported beam is high, the toughness is good, the mechanical property is good, the load-resisting capacity is strong, and the fracture and other damages are not easy to generate under the action of external force in the using process.
The aging-resistant PVC plastic corrugated board of the invention is added with carbon black with proper proportion, the carbon black can absorb the aging inhibitor and the ultraviolet resistant agent in the raw material system of the invention, the light calcium carbonate (also can absorb a certain amount of the aging inhibitor and the ultraviolet resistant agent) and the heavy calcium carbonate with matched proportion in the raw material system of the invention are distributed according to particle size, so that the light calcium carbonate and the heavy calcium carbonate are uniformly distributed and tightly combined in the raw material system of the invention, the light calcium carbonate and the heavy calcium carbonate have high compactness, the carbon black has the lightest mass and the smallest particle size, and the three have good surface suspension effect in the matching, namely, the surface part (especially the upper surface) of the aging-resistant PVC plastic corrugated board of the invention has the highest concentration of the carbon black and is close to the light calcium carbonate and the heavy calcium carbonate which are uniformly distributed, because the carbon black absorbs the aging inhibitor and the ultraviolet resistant agent (thus the addition amount of, good aging resistance effect is ensured), ultraviolet light can be effectively blocked to be equal to the surface of the aging-resistant PVC plastic corrugated board, so that the aging resistance of the aging-resistant PVC plastic corrugated board is greatly improved, and the aging resistance is good due to the fact that the addition amount of the anti-aging agent and the ultraviolet resistant agent in the aging-resistant PVC plastic corrugated board is small; it can also improve mechanical properties.
The age resister is a mixture of an antioxidant 1098 and an antioxidant 168, the antioxidant 1098 and the antioxidant 168 are matched with each other, so that a good synergistic effect is achieved, and the aging resistance of the aging resistant PVC plastic corrugated board is greatly improved.
The anti-aging PVC plastic corrugated board is added with the anti-ultraviolet agent in a proper proportion, the anti-ultraviolet agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531, the tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite can capture active free radicals generated by degradation of polymers such as polyvinyl chloride and the like in the invention, hydroperoxide is decomposed, and energy of excited molecules is transferred, the ultraviolet absorbent UV-531 is mainly used as an ultraviolet absorbent, and the two are matched with each other to play a good synergistic effect, so that the anti-aging performance of the anti-aging PVC plastic corrugated board is greatly improved.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
an aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight:
70-80 parts of polyvinyl chloride, 17-23 parts of light calcium carbonate, 17-23 parts of heavy calcium carbonate, 3-5 parts of chlorinated polyethylene, 3-4 parts of composite lead, 1.5-2 parts of processing aid, 0.5-1 part of stearic acid, 0.5-1 part of polyethylene wax, 0.8-1.7 parts of pigment, 0.8-1.5 parts of carbon black, 2-2.7 parts of epoxidized soybean oil, 0.05-0.15 part of anti-aging agent and 0.05-0.15 part of anti-ultraviolet agent;
the particle size of the light calcium carbonate is 0.01 um-0.03 um;
the particle size of the heavy calcium carbonate is 0.6-0.9 um;
the particle size of the carbon black is 8-10 nm;
the anti-aging agent is a mixture of an antioxidant 1098 and an antioxidant 168;
the ultraviolet resistant agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531.
In this embodiment, the aging-resistant PVC plastic corrugated board may be preferably, but not limited to, made of raw materials including, by weight: 75 parts of polyvinyl chloride, 20 parts of light calcium carbonate, 20 parts of heavy calcium carbonate, 4.5 parts of chlorinated polyethylene, 3.5 parts of composite lead, 1.8 parts of processing aid, 0.7 part of stearic acid, 0.7 part of polyethylene wax, 1 part of pigment, 1 part of carbon black, 2.3 parts of epoxidized soybean oil, 0.1 part of anti-aging agent and 0.1 part of anti-ultraviolet agent.
In this embodiment, the chlorinated polyethylene may preferably, but not limited to, be prepared from high density polyethylene and chlorine through substitution reaction.
In this embodiment, the polyethylene wax may preferably, but not limited to, be a polyethylene wax produced by pyrolysis of high density polyethylene.
In this embodiment, the mass ratio of the antioxidant 1098 to the antioxidant 168 may preferably, but not limited to, be 1: (0.65-0.75).
In the present embodiment, the mass ratio of the tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite to the ultraviolet absorber UV-531 may preferably, but not limited to, be 1: (1.5-1.7).
In this embodiment, the processing aid may preferably, but not limited to, be a high efficiency processing aid WAC 88.
In the present embodiment, the pigment may preferably, but is not limited to, be at least one of red iron oxide, yellow iron, phthalocyanine blue, and phthalocyanine green.
The embodiment also provides a preparation method of the aging-resistant PVC plastic corrugated board, which comprises the following steps:
A. respectively weighing the raw materials of the aging-resistant PVC plastic corrugated board;
B. firstly putting light calcium carbonate, heavy calcium carbonate, composite lead, a processing aid, stearic acid, pigment, carbon black, epoxidized soybean oil, an anti-aging agent and an anti-ultraviolet agent into a high-speed mixer, and mixing for 15-20 min; then, the rest raw materials are put into a high-speed mixer, the temperature is increased to 110-120 ℃, and the mixing is continued for 20-30 min; then cooling to 40-70 ℃, and continuously mixing for 20-40 min to obtain a mixture;
C. and feeding the mixture into an extruder, performing extrusion molding, and cooling and shaping to obtain the aging-resistant PVC plastic corrugated board.
In the embodiment, the temperature of the extruder is controlled to be 180-200 ℃ and the temperature of the extrusion die is controlled to be 185-230 ℃ during the extrusion molding.
In the embodiment, the temperature of the cooling and shaping is controlled to be 48-52 ℃.
Example 2:
an aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight:
70 parts of polyvinyl chloride, 23 parts of light calcium carbonate, 17 parts of heavy calcium carbonate, 3 parts of chlorinated polyethylene, 3 parts of composite lead, 1.5 parts of processing aid, 0.5 part of stearic acid, 0.5 part of polyethylene wax, 0.8 part of pigment, 0.8 part of carbon black, 2 parts of epoxidized soybean oil, 0.05 part of anti-aging agent and 0.05 part of anti-ultraviolet agent;
the particle size of the light calcium carbonate is 0.01 um-0.03 um;
the particle size of the heavy calcium carbonate is 0.6-0.9 um;
the particle size of the carbon black is 8-10 nm;
the anti-aging agent is a mixture of an antioxidant 1098 and an antioxidant 168;
the ultraviolet resistant agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531.
In this example, the chlorinated polyethylene is prepared by substitution reaction of high density polyethylene and chlorine.
In this example, the polyethylene wax is a polyethylene wax produced by pyrolysis of high density polyethylene.
In this embodiment, the mass ratio of the antioxidant 1098 to the antioxidant 168 in the mixture of the antioxidant 1098 and the antioxidant 168 is 1: 0.65.
in this example, the mass ratio of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite to the ultraviolet absorber UV-531 was 1: 1.5.
in this example, the processing aid is the high efficiency processing aid WAC 88.
In this example, the pigment is red iron oxide.
In this embodiment, the method for preparing the aging-resistant PVC plastic corrugated board includes the following steps:
A. respectively weighing the raw materials of the aging-resistant PVC plastic corrugated board;
B. firstly putting light calcium carbonate, heavy calcium carbonate, composite lead, a processing aid, stearic acid, pigment, carbon black, epoxidized soybean oil, an anti-aging agent and an anti-ultraviolet agent into a high-speed mixer, and mixing for 15 min; then adding the rest raw materials into a high-speed mixer, heating to 110 ℃, and continuously mixing for 30 min; then cooling to 40 ℃, and continuously mixing for 40min to obtain a mixture;
C. and feeding the mixture into an extruder, performing extrusion molding, and cooling and shaping to obtain the aging-resistant PVC plastic corrugated board.
In the embodiment, the temperature of the extruder is controlled to be 180-200 ℃ and the temperature of the extrusion die is controlled to be 185-210 ℃ during the extrusion molding.
In this embodiment, the temperature of the cooling and setting is controlled at 48 ℃.
Example 3:
an aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight:
80 parts of polyvinyl chloride, 17 parts of light calcium carbonate, 23 parts of heavy calcium carbonate, 5 parts of chlorinated polyethylene, 4 parts of composite lead, 2 parts of processing aid, 1 part of stearic acid, 1 part of polyethylene wax, 1.7 parts of pigment, 1.5 parts of carbon black, 2.7 parts of epoxidized soybean oil, 0.15 part of anti-aging agent and 0.15 part of anti-ultraviolet agent;
the particle size of the light calcium carbonate is 0.01 um-0.03 um;
the particle size of the heavy calcium carbonate is 0.6-0.9 um;
the particle size of the carbon black is 8-10 nm;
the anti-aging agent is a mixture of an antioxidant 1098 and an antioxidant 168;
the ultraviolet resistant agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531.
In this example, the chlorinated polyethylene is prepared by substitution reaction of high density polyethylene and chlorine.
In this example, the polyethylene wax is a polyethylene wax produced by pyrolysis of high density polyethylene.
In this embodiment, the mass ratio of the antioxidant 1098 to the antioxidant 168 in the mixture of the antioxidant 1098 and the antioxidant 168 is 1: 0.75.
in this example, the mass ratio of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite to the ultraviolet absorber UV-531 was 1: 1.7.
in this example, the processing aid is the high efficiency processing aid WAC 88.
In this embodiment, the pigment is a mixture of 1: 1 red iron oxide and yellow iron oxide.
In this embodiment, the method for preparing the aging-resistant PVC plastic corrugated board includes the following steps:
A. respectively weighing the raw materials of the aging-resistant PVC plastic corrugated board;
B. firstly putting light calcium carbonate, heavy calcium carbonate, composite lead, a processing aid, stearic acid, pigment, carbon black, epoxidized soybean oil, an anti-aging agent and an anti-ultraviolet agent into a high-speed mixer, and mixing for 20 min; then adding the rest raw materials into a high-speed mixer, heating to 120 ℃, and continuously mixing for 20 min; then cooling to 70 ℃, and continuously mixing for 20min to obtain a mixture;
C. and feeding the mixture into an extruder, performing extrusion molding, and cooling and shaping to obtain the aging-resistant PVC plastic corrugated board.
In the embodiment, the temperature of the extruder is controlled to be 180-200 ℃ and the temperature of the extrusion die is controlled to be 205-230 ℃ during extrusion molding.
In this embodiment, the temperature of the cooling and setting is controlled at 52 ℃.
Example 4:
an aging-resistant PVC plastic corrugated board is prepared from the following raw materials in parts by weight:
75 parts of polyvinyl chloride, 20 parts of light calcium carbonate, 20 parts of heavy calcium carbonate, 4.5 parts of chlorinated polyethylene, 3.5 parts of composite lead, 1.8 parts of processing aid, 0.7 part of stearic acid, 0.7 part of polyethylene wax, 1 part of pigment, 1 part of carbon black, 2.3 parts of epoxy soybean oil, 0.1 part of anti-aging agent and 0.1 part of anti-ultraviolet agent;
the particle size of the light calcium carbonate is 0.01 um-0.03 um;
the particle size of the heavy calcium carbonate is 0.6-0.9 um;
the particle size of the carbon black is 8-10 nm;
the anti-aging agent is a mixture of an antioxidant 1098 and an antioxidant 168;
the ultraviolet resistant agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531.
In this example, the chlorinated polyethylene is prepared by substitution reaction of high density polyethylene and chlorine.
In this example, the polyethylene wax is a polyethylene wax produced by pyrolysis of high density polyethylene.
In this embodiment, the mass ratio of the antioxidant 1098 to the antioxidant 168 in the mixture of the antioxidant 1098 and the antioxidant 168 is 1: 0.72.
in this example, the mass ratio of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite to the ultraviolet absorber UV-531 was 1: 1.58.
in this example, the processing aid is the high efficiency processing aid WAC 88.
In this example, the pigment is phthalocyanine green.
In this embodiment, the method for preparing the aging-resistant PVC plastic corrugated board includes the following steps:
A. respectively weighing the raw materials of the aging-resistant PVC plastic corrugated board;
B. firstly putting light calcium carbonate, heavy calcium carbonate, composite lead, a processing aid, stearic acid, pigment, carbon black, epoxidized soybean oil, an anti-aging agent and an anti-ultraviolet agent into a high-speed mixer, and mixing for 18 min; then adding the rest raw materials into a high-speed mixer, heating to 115 ℃, and continuously mixing for 25 min; then cooling to 55 ℃, and continuously mixing for 30min to obtain a mixture;
C. and feeding the mixture into an extruder, performing extrusion molding, and cooling and shaping to obtain the aging-resistant PVC plastic corrugated board.
In the embodiment, the temperature of the extruder is controlled to be 180-200 ℃ and the temperature of the extrusion die is controlled to be 200-215 ℃ during the extrusion molding.
In this embodiment, the temperature of the cooling setting is controlled at 50 ℃.
Comparative example 1:
the difference from example 4 is that the light calcium carbonate is replaced by heavy calcium carbonate, and the other steps are the same as example 4.
Comparative example 2:
the difference from example 4 is that the ground calcium carbonate is replaced by light calcium carbonate, and the other steps are the same as example 4.
Comparative example 3:
the difference from example 4 is that the chlorinated polyethylene is prepared by substitution reaction of low density polyethylene and chlorine, and the other is the same as example 4.
Comparative example 4:
the difference from example 4 is that no carbon black is present, and the other is the same as example 4.
Comparative example 5:
the difference from example 4 is that the anti-aging agent is antioxidant 168, a single component, otherwise the same as example 4.
Comparative example 6:
the difference from example 4 is that the anti-ultraviolet agent is an ultraviolet absorber UV-531, a single component, and the others are the same as example 4.
The PVC plastic corrugated panels obtained in examples 2 to 4 of the present invention and comparative examples 1 to 6 and (commercially available) general PVC plastic corrugated panels were subjected to the performance test, and the test results are shown in tables 1 and 2.
TABLE 1
As can be seen from the above table, the aging-resistant PVC plastic corrugated board of the present invention has the following advantages: the bending strength is high, the impact strength of the notch of the simply supported beam is high, the toughness is good, the mechanical property is good, the load resistance is strong, and the fracture and other damages are not easy to generate under the action of external force in the using process.
TABLE 2
As can be seen from the above table, the aging-resistant PVC plastic corrugated board of the present invention has the following advantages: the aging resistance is good.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The aging-resistant PVC plastic corrugated board is characterized by being prepared from the following raw materials in parts by weight:
70-80 parts of polyvinyl chloride, 17-23 parts of light calcium carbonate, 17-23 parts of heavy calcium carbonate, 3-5 parts of chlorinated polyethylene, 3-4 parts of composite lead, 1.5-2 parts of processing aid, 0.5-1 part of stearic acid, 0.5-1 part of polyethylene wax, 0.8-1.7 parts of pigment, 0.8-1.5 parts of carbon black, 2-2.7 parts of epoxidized soybean oil, 0.05-0.15 part of anti-aging agent and 0.05-0.15 part of anti-ultraviolet agent;
the particle size of the light calcium carbonate is 0.01 um-0.03 um;
the particle size of the heavy calcium carbonate is 0.6-0.9 um;
the particle size of the carbon black is 8-10 nm;
the anti-aging agent is a mixture of an antioxidant 1098 and an antioxidant 168;
the ultraviolet resistant agent is a mixture of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite and an ultraviolet absorbent UV-531.
2. The aging-resistant PVC plastic corrugated board of claim 1, wherein the aging-resistant PVC plastic corrugated board is made of raw materials comprising, by weight: 75 parts of polyvinyl chloride, 20 parts of light calcium carbonate, 20 parts of heavy calcium carbonate, 4.5 parts of chlorinated polyethylene, 3.5 parts of composite lead, 1.8 parts of processing aid, 0.7 part of stearic acid, 0.7 part of polyethylene wax, 1 part of pigment, 1 part of carbon black, 2.3 parts of epoxidized soybean oil, 0.1 part of anti-aging agent and 0.1 part of anti-ultraviolet agent.
3. The weatherable PVC plastic corrugated board of claim 1, wherein the chlorinated polyethylene is prepared by substitution reaction of high density polyethylene and chlorine.
4. The aging-resistant PVC plastic corrugated board of claim 1, wherein the polyethylene wax is a polyethylene wax produced by pyrolysis of high density polyethylene.
5. The aging-resistant PVC plastic corrugated board as claimed in claim 1, wherein the ratio of the antioxidant 1098 to the antioxidant 168 is 1: (0.65-0.75).
6. The aging-resistant PVC plastic corrugated board of claim 1, wherein the mass ratio of tris (1, 2, 2, 6, 6-pentamethylpiperidinyl) phosphite to UV absorber UV-531 is 1: (1.5-1.7).
7. The weatherable PVC plastic corrugated board of claim 1, wherein the processing aid is a high efficiency processing aid WAC 88.
8. The weatherable PVC plastic corrugated board of claim 1, wherein the pigment is at least one of red iron oxide, yellow iron, phthalocyanine blue and phthalocyanine green.
9. A method of making the aging resistant PVC plastic corrugated board of any one of claims 1 to 8, comprising the steps of:
A. respectively weighing the raw materials of the aging-resistant PVC plastic corrugated board;
B. firstly putting light calcium carbonate, heavy calcium carbonate, composite lead, a processing aid, stearic acid, pigment, carbon black, epoxidized soybean oil, an anti-aging agent and an anti-ultraviolet agent into a high-speed mixer, and mixing for 15-20 min; then, the rest raw materials are put into a high-speed mixer, the temperature is increased to 110-120 ℃, and the mixing is continued for 20-30 min; then cooling to 40-70 ℃, and continuously mixing for 20-40 min to obtain a mixture;
C. and feeding the mixture into an extruder, performing extrusion molding, and cooling and shaping to obtain the aging-resistant PVC plastic corrugated board.
10. The method for preparing the aging-resistant PVC plastic corrugated board as claimed in claim 9, wherein the temperature of the extruder is controlled to be 180-200 ℃ and the temperature of the extrusion die is controlled to be 185-230 ℃ during the extrusion molding; and the cooling and shaping temperature is controlled to be 48-52 ℃.
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