CN116144093A - High-filling tensile umbrella cover composite material and manufacturing method thereof - Google Patents
High-filling tensile umbrella cover composite material and manufacturing method thereof Download PDFInfo
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- CN116144093A CN116144093A CN202310181177.5A CN202310181177A CN116144093A CN 116144093 A CN116144093 A CN 116144093A CN 202310181177 A CN202310181177 A CN 202310181177A CN 116144093 A CN116144093 A CN 116144093A
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- 238000011049 filling Methods 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 62
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 31
- -1 polyethylene Polymers 0.000 claims abstract description 19
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 14
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 14
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000008117 stearic acid Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000005469 granulation Methods 0.000 claims abstract description 3
- 230000003179 granulation Effects 0.000 claims abstract description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 26
- 239000004702 low-density polyethylene Substances 0.000 claims description 26
- 239000003921 oil Substances 0.000 claims description 20
- 235000019198 oils Nutrition 0.000 claims description 20
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical group CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 claims description 16
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 239000001993 wax Substances 0.000 claims description 13
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 11
- 239000003431 cross linking reagent Substances 0.000 claims description 8
- 239000004014 plasticizer Substances 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
- 239000004611 light stabiliser Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 5
- 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 5
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 3
- QZCLKYGREBVARF-UHFFFAOYSA-N Acetyl tributyl citrate Chemical compound CCCCOC(=O)CC(C(=O)OCCCC)(OC(C)=O)CC(=O)OCCCC QZCLKYGREBVARF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 2
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 235000012424 soybean oil Nutrition 0.000 claims description 2
- 239000003549 soybean oil Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 4
- 238000010345 tape casting Methods 0.000 abstract 2
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000013039 cover film Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000003508 Dilauryl thiodipropionate Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
-
- 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
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention discloses a high-filling tensile umbrella cover composite material and a manufacturing method thereof, and belongs to the technical field of composite umbrella cover materials, and the high-filling tensile umbrella cover composite material is characterized in that: comprises the following components: the manufacturing method of the high-filling tensile umbrella cover composite material comprises the following steps of: according to a specific proportion, calcium carbonate, white oil, polyethylene wax and stearic acid are put into a high-speed mixing pot at 70-90 ℃ and stirred at a low speed for 5-10min, other raw materials and auxiliary materials are added into a high-speed mixer and stirred uniformly, and the materials are subjected to blending modification and extrusion granulation through a double screw extruder at 135-155 ℃, dried for standby, and the obtained modified materials are subjected to tape casting through a tape casting machine to obtain umbrella covers with corresponding specifications.
Description
Technical Field
The invention belongs to the technical field of composite umbrella fabric materials, and particularly relates to a high-filling tensile umbrella fabric composite material and a manufacturing method thereof
Background
Calcium carbonate is an important plastic filler, and has the advantages of low price, no toxicity, good chemical stability and the like, and can play roles of increasing, reducing cost, improving the impact toughness of products, improving the dimensional stability and the like when being added into plastics, so that the calcium carbonate has wide application in plastics.
Because the calcium carbonate is inorganic particles and has poor compatibility with plastics, if the calcium carbonate is directly added into plastics, the modification effect is poor, and more dust is not beneficial to clean production in the processing process, the calcium carbonate is subjected to activation treatment so as to reduce the surface polarity of the calcium carbonate and enhance the compatibility of the calcium carbonate.
In view of the above, the invention provides a high-filling tensile umbrella cover composite material and a manufacturing method thereof.
Disclosure of Invention
The technical problems to be solved are as follows: aiming at the defects of the prior art, the invention provides the high-filling tensile umbrella cover composite material and the manufacturing method thereof, and the high-filling tensile umbrella cover composite material adopts LDPE-g-VTES (low density polyethylene grafted vinyl triethoxysilane) material, so that the dispersion uniformity of calcium carbonate molecules can be improved, and the umbrella cover prepared from the material has good mechanical property and greatly improves the service performance of products.
The technical scheme is as follows: the high-filling tensile umbrella cover composite material comprises the following components in percentage by mass: 42-64.2% of polyethylene, 30-40% of calcium carbonate, 5-15% of LDPE-g-VTES, 0.5-1% of plasticizer, 0.1-0.5% of light stabilizer, 0.1-0.5% of antioxidant and 0.1-1% of lubricant;
further, the polyethylene is one or more of low density polyethylene, linear low density polyethylene and metallocene linear low density polyethylene, preferably low density polyethylene.
Further, the calcium carbonate is any one of heavy calcium carbonate, light calcium carbonate and the like, and the mesh number is more than or equal to 2000 meshes, preferably the light calcium carbonate.
Further, the plasticizer is at least one of white oil, epoxidized soybean oil, acetyl tri-n-butyl citrate or glycerin, preferably white oil.
Further, the light stabilizer is UV-326.
Further, the antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 168 or DLTP, and preferably the antioxidant 1010 or antioxidant 168.
Further, the lubricant is at least one of paraffin wax, polyethylene wax, stearic acid or oleamide, preferably stearic acid and polyethylene wax.
A manufacturing method of a high-filling tensile umbrella cover composite material comprises the following steps:
step one, preparing LDPE-g-VTES: adding low-density polyethylene, vinyl triethoxysilane and a cross-linking agent into a high-speed mixer for mixing, adding white oil, stirring uniformly, extruding and granulating the obtained mixture, and thus obtaining LDPE-g-VTES;
step two: sequentially adding calcium carbonate, plasticizer and lubricant into a high-speed mixer according to the proportion, uniformly stirring at a low speed, sequentially adding the rest raw materials into the high-speed mixer, uniformly stirring, extruding, granulating, drying to obtain modified materials, and casting the obtained modified materials to obtain the umbrella mask.
Further, the cross-linking agent in the first step is at least one of benzoyl peroxide, di-tert-butyl peroxide or dicumyl peroxide; the mass ratio of the low-density polyethylene to the vinyl triethoxysilane to the cross-linking agent in the first step is 100:5:0.5; the addition amount of the white oil in the first step is 0.5% of the total mass of the low-density polyethylene, the vinyl triethoxysilane and the cross-linking agent; the stirring in the first step is specifically as follows: stirring at normal temperature for 3-5min at 200-300 r/min; the temperature during extrusion in the first step is 140-150 ℃, and the rotating speed is 100-150 r/min.
Further, the temperature during low-speed stirring in the second step is 70-90 ℃, the time is 5-10min, the rotating speed is 50-100 r/min, the temperature during extrusion granulation in the second step is 135-155 ℃, and the temperature of flow delay in the second step is 170-200 ℃.
The beneficial effects are that: the high-filling tensile umbrella cover composite material provided by the invention has the following beneficial effects:
1. the high-filling tensile umbrella cover composite material adopts low-density polyethylene as a raw material, and the low-density polyethylene has good chemical property, good softness, extensibility, electrical insulation, transparency, easy processing property and certain air permeability.
2. The high-filling tensile umbrella cover composite material adopts LDPE-g-VTES, and the raw material is low-density polyethylene grafted vinyl triethoxysilane, so that the dispersion uniformity of calcium carbonate in a formula system can be effectively improved, the compatibility of the system is effectively improved, the mechanical property of the umbrella cover prepared by the invention is excellent, and the service performance of products is greatly improved.
3. The high-filling tensile umbrella cover composite material adopts white oil as a plasticizer and has good oxidation stability, chemical stability and light stability.
4. The high-filling tensile umbrella cover composite material adopts the UV-326 as the light stabilizer, has stable performance, low toxicity and strong ultraviolet absorption capacity of the UV-326, and can effectively improve the light resistance of the product.
5. The high-filling tensile umbrella cover composite material adopts the antioxidant 1010, has the advantages of low volatility, good extraction resistance, high thermal stability, long lasting effect, no coloring, no pollution and no toxicity, and can effectively prolong the service life of products.
The manufacturing method of the high-filling tensile umbrella cover composite material provided by the invention has the following beneficial effects:
the manufacturing method of the high-filling tensile umbrella cover composite material provided by the invention has the advantages of low investment in early-stage equipment, high production efficiency in later stage, strong product adaptability and easiness in production and popularization.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: preparation of LDPE-g-VTES (Low Density polyethylene grafted vinyl triethoxysilane): 4.2kg of low-density polyethylene, 0.21kg of vinyltriethoxysilane and 0.021kg of dicumyl peroxide are mixed according to a mass ratio of 100:5:0.5 is added into a high-speed mixer for mixing, 0.02kg of white oil is added, stirring is carried out at normal temperature for 4min, the rotating speed is 250r/min, then the obtained mixture is added into a double-screw extruder, and extrusion modification is carried out at the temperature of 145 ℃ and the rotating speed of 125r/min, thus obtaining LDPE-g-VTES (low density polyethylene grafted vinyl triethoxysilane).
Example 2: the high-filling tensile umbrella cover composite material is prepared from the following components in percentage by mass: 42% of low density polyethylene, 40% of calcium carbonate, 15% of LDPE-g-VTES, 1% of white oil, 0.5% of UV-326, 0.5% of antioxidant 1010, 0.5% of polyethylene wax and 0.5% of stearic acid, and the preparation steps are as follows:
4.2kg of low-density polyethylene, 4kg of calcium carbonate, 1.5kg of LDPE-g-VTES, 0.1kg of white oil, 0.05kg of polyethylene wax and 0.05kg of stearic acid are put into an 80 ℃ high-mixing pot, stirred at a low speed for 8min at a rotating speed of 75r/min, 0.05kg of UV-326 and 0.05kg of antioxidant 1010 are added into a high-speed mixer to be stirred uniformly, extruded and granulated by a double-screw extruder at 140 ℃ and dried for standby, the obtained modified material is cast by a casting machine to obtain an umbrella cover film with corresponding specification, and the temperature is controlled at 190 ℃ to obtain the high-filling tensile umbrella cover composite material.
Example 3: the high-filling tensile umbrella cover composite material is prepared from the following components in percentage by mass: 45% of low density polyethylene, 40% of calcium carbonate, 12% of LDPE-g-VTES, 1% of white oil, 0.5% of UV-326, 0.5% of antioxidant 1010, 0.5% of polyethylene wax and 0.5% of stearic acid, and the preparation steps are as follows:
4.5kg of low-density polyethylene, 4kg of calcium carbonate, 1.2kg of LDPE-g-VTES, 0.1kg of white oil, 0.05kg of polyethylene wax and 0.05kg of stearic acid are put into an 80 ℃ high-mixing pot, stirred at a low speed for 8min at a rotating speed of 75r/min, 0.05kg of UV-326 and 0.05kg of antioxidant 1010 are added into a high-speed mixer to be stirred uniformly, extruded and granulated by a double-screw extruder at 140 ℃ and dried for standby, the obtained modified material is cast by a casting machine to obtain an umbrella cover film with corresponding specification, and the temperature is controlled at 190 ℃ to obtain the high-filling tensile umbrella cover composite material.
Example 4: the high-filling tensile umbrella cover composite material is prepared from the following components in percentage by mass: 50% of low density polyethylene, 36% of calcium carbonate, 11% of LDPE-g-VTES, 1% of white oil, 0.5% of UV-326, 0.5% of antioxidant 1010, 0.5% of polyethylene wax and 0.5% of stearic acid, and the preparation steps are as follows:
5kg of low-density polyethylene, 3.6kg of calcium carbonate, 1.1kg of LDPE-g-VTES, 0.1kg of white oil, 0.05kg of polyethylene wax and 0.05kg of stearic acid are put into an 80 ℃ high-mixing pot, stirred at a low speed for 8min, the rotating speed is 75r/min, 0.05kg of UV-326 and 0.05kg of antioxidant 1010 are added into a high-speed mixer to be uniformly stirred, extruded and granulated by a double-screw extruder at 140 ℃, dried for standby, the obtained modified material is cast by a casting machine to obtain umbrella covers of corresponding specifications, and the temperature is controlled at 190 ℃ to obtain the high-filling tensile umbrella cover composite material.
Example 5: the high-filling tensile umbrella cover composite material is prepared from the following components in percentage by mass: 58% of low density polyethylene, 36% of calcium carbonate, 7% of LDPE-g-VTES, 1% of white oil, 0.5% of UV-326, 0.5% of antioxidant 1010, 0.5% of polyethylene wax and 0.5% of stearic acid, and the preparation steps are as follows:
5.8kg of low-density polyethylene, 3.2kg of calcium carbonate, 0.7kg of LDPE-g-VTES, 0.1kg of white oil, 0.05kg of polyethylene wax and 0.05kg of stearic acid are put into an 80 ℃ high-mixing pot, stirred at a low speed for 8min at a rotating speed of 75r/min, 0.05kg of UV-326 and 0.05kg of antioxidant 1010 are added into a high-speed mixer to be stirred uniformly, extruded and granulated by a double screw extruder at 140 ℃ and dried for standby, the obtained modified material is cast by a casting machine to obtain an umbrella cover film with corresponding specification, and the temperature is controlled at 190 ℃ to obtain the high-filling tensile umbrella cover composite material.
Example 6: the high-filling tensile umbrella cover composite material is prepared from the following components in percentage by mass: 64.2% of low density polyethylene, 30% of calcium carbonate, 5% of LDPE-g-VTES,0.5% of white oil, 0.1% of UV-326, 0.1% of antioxidant 1010, 0.05% of polyethylene wax and 0.05% of stearic acid, and the preparation steps are as follows:
6.42kg of low-density polyethylene, 3kg of calcium carbonate, 0.5kg of LDPE-g-VTES, 0.05kg of white oil, 0.005kg of polyethylene wax and 0.005kg of stearic acid are put into an 80 ℃ high-mixing pot, stirred at a low speed for 8min at a rotating speed of 75r/min, 0.01kg of UV-326 and 0.01kg of antioxidant 1010 are added into a high-speed mixer to be stirred uniformly, extruded and granulated by a double-screw extruder at 140 ℃ and dried for standby, the obtained modified material is cast by a casting machine to obtain an umbrella cover film with corresponding specification, and the temperature is controlled at 190 ℃ to obtain the high-filling tensile umbrella cover composite material.
The plasticizer white oil is a liquid hydrocarbon mixture, and is derived from the metallocene petrochemical company;
in the invention, the light stabilizer UV-326 is 2- (2 ' -hydroxy-3 ' -tert-butyl-5 ' -methylphenyl) 5-chlorobenzotriazole;
the antioxidant 1010 is pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ];
the antioxidant 1076 is stearyl alcohol di-T-butyl-4-hydroxy hydrocinnamate;
the antioxidant 168 is tri (2, 4-di-tert-butylphenyl) phosphite;
in the invention, the antioxidant DLTP is dilauryl thiodipropionate.
The raw material composition of the high-tensile umbrella cover composite material is shown in table 1:
table 1. Raw materials composition table of the high tensile umbrella canopy composite material of the invention
The transverse stretching data of the umbrella cover of the high-filling tensile umbrella are shown in table 2:
TABLE 2 transverse stretching data sheet for high filling tensile umbrella cover of the present invention
The longitudinal tensile data of the umbrella cover of the high-filling tensile umbrella are shown in Table 3:
TABLE 3 longitudinal stretching data sheet of high filling tensile umbrella cover of the invention
The tensile property data are all tested according to the measurement of the tensile property of GB/T1040.3-2006 plastic.
As can be seen from tables 1 and 2, the maximum horizontal stretching force average value of the high-filling tensile umbrella cover of the invention reaches 14.492N, the average tensile strength is 7.729Mpa, the average tensile strain at break is 1134.783%, the maximum vertical stretching force average value of the high-filling tensile umbrella cover of the invention reaches 17.5348N, the average tensile strength is 9.532Mpa, the average tensile strain at break is 1057.7852%, and the umbrella cover prepared from the proportioned raw materials of the invention has excellent mechanical properties and high service performance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-filling tensile umbrella cover composite material is characterized in that: comprises the following components in percentage by mass: 42% -64.2% of polyethylene, 30% -40% of calcium carbonate, 5% -15% of LDPE-g-VTES,0.5% -1% of plasticizer, 0.1% -0.5% of light stabilizer, 0.1% -0.5% of antioxidant and 0.1% -1% of lubricant.
2. The high-filling tensile umbrella canopy composite of claim 1, wherein: the polyethylene is at least one of low density polyethylene, linear low density polyethylene or metallocene linear low density polyethylene.
3. The high-filling tensile umbrella canopy composite of claim 1, wherein: the mesh number of the calcium carbonate is more than or equal to 2000 meshes, and is any one of heavy calcium carbonate, light calcium carbonate and the like.
4. The high-filling tensile umbrella canopy composite of claim 1, wherein: the plasticizer is at least one of white oil, epoxidized soybean oil, acetyl tri-n-butyl citrate or glycerol.
5. The high-filling tensile umbrella canopy composite of claim 1, wherein: the light stabilizer is UV-326.
6. The high-filling tensile umbrella canopy composite of claim 1, wherein: the antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 168 or DLTP.
7. The high-filling tensile umbrella canopy composite of claim 1, wherein: the lubricant is at least one of paraffin wax, polyethylene wax, stearic acid or oleamide.
8. The method for manufacturing the high-filling tensile umbrella cover composite material as claimed in claim 1, which is characterized by comprising the following steps:
step one, preparing LDPE-g-VTES: adding low-density polyethylene, vinyl triethoxysilane and a cross-linking agent into a high-speed mixer for mixing, adding white oil, stirring uniformly, extruding and granulating the obtained mixture, and thus obtaining LDPE-g-VTES;
step two: sequentially adding calcium carbonate, plasticizer and lubricant into a high-speed mixer according to the proportion, uniformly stirring at a low speed, sequentially adding the rest raw materials into the high-speed mixer, uniformly stirring, extruding, granulating, drying to obtain a modified material, and casting the obtained modified material to obtain the umbrella mask.
9. The method for manufacturing the high-filling tensile umbrella cover composite material according to claim 8, which is characterized in that: the cross-linking agent in the first step is at least one of benzoyl peroxide, di-tert-butyl peroxide or dicumyl peroxide; the mass ratio of the low-density polyethylene to the vinyl triethoxysilane to the cross-linking agent in the first step is 100:5:0.5; the addition amount of the white oil in the first step is 0.5% of the total mass of the low-density polyethylene, the vinyl triethoxysilane and the cross-linking agent; the stirring in the first step is specifically as follows: stirring at normal temperature for 3-5min at 200-300 r/min; the temperature during extrusion in the first step is 140-150 ℃, and the rotating speed is 100-150 r/min.
10. The method for manufacturing the high-filling tensile umbrella cover composite material according to claim 8, which is characterized in that: the temperature during low-speed stirring in the second step is 70-90 ℃, the time is 5-10min, the rotating speed is 50-100 r/min, the temperature during extrusion granulation in the second step is 135-155 ℃, and the temperature of flow delay in the second step is 170-200 ℃.
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