CN115403918A - Ultra-light high-elasticity composite material applied to fire hose and preparation method thereof - Google Patents
Ultra-light high-elasticity composite material applied to fire hose and preparation method thereof Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims description 12
- 239000011347 resin Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000004743 Polypropylene Substances 0.000 claims abstract description 38
- 229920001155 polypropylene Polymers 0.000 claims abstract description 38
- -1 polypropylene Polymers 0.000 claims abstract description 36
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 31
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 31
- 239000000945 filler Substances 0.000 claims abstract description 30
- 229920002635 polyurethane Polymers 0.000 claims abstract description 30
- 239000004814 polyurethane Substances 0.000 claims abstract description 30
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract description 19
- 239000000806 elastomer Substances 0.000 claims abstract description 18
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 7
- 230000003179 granulation Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical group [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229920001400 block copolymer Polymers 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 239000010456 wollastonite Substances 0.000 claims description 4
- 229910052882 wollastonite Inorganic materials 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 15
- 238000012360 testing method Methods 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 18
- 239000004599 antimicrobial Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920005604 random copolymer Polymers 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 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
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2201/011—Nanostructured additives
-
- 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
Abstract
The invention discloses an ultralight high-elasticity composite material applied to a fire hose, which comprises the following components in parts by weight based on 100 parts: 15-25 parts of elastomer resin SEBS, 10-25 parts of paraffin oil, 40-50 parts of polyurethane, 2-5 parts of polyurethane grafting agent, 5-10 parts of polypropylene resin, 0.1-0.2 part of antibacterial agent, 0.1-0.2 part of antioxidant and the balance of filler. The TPE material generated by the invention can still keep good elasticity at a lower temperature and has good mechanical strength, and can keep good flexibility at a low temperature; the polypropylene resin has excellent high temperature resistance, and the TPE material is not aged to cause damage in the processing process of the fire hose under the steam of 120 ℃, so that the feasibility of the application of the TPE material in the field of fire hoses is improved.
Description
Technical Field
The invention relates to an ultralight high-elasticity composite material applied to a fire hose and a preparation method thereof, belonging to the technical field of fire-fighting materials.
Background
Fire hose is a hose used to transport high pressure water or fire retardant liquids such as foam. The traditional fire hose takes rubber as a lining, and the outer surface of the traditional fire hose is wrapped by linen braided fabric. The fire hose product seems simple, but it also contains scientific and technological content.
When the fire hose is used, sudden bending and twisting are avoided, forced dragging on the ground after water filling is avoided, contact with corrosive chemical substances such as oil, acid, alkali and the like is avoided, and a hose with fireproof and high-temperature-resistant performances is adopted in areas with possible flame or strong radiant heat.
CNCN106084365A discloses a fire hose material with flame retardant, acid and alkali resistant functions, which has the performances of flame retardant, acid and alkali resistance and mildew resistance, but the components have more components for production and processing, the system compatibility of different components has certain problems, and the steps are reversely locked in the production process, which is not beneficial to industrial production.
Therefore, the materials of the fire hose must have: high pressure resistance, oil resistance, weather resistance, corrosion resistance, winding resistance, free bending, light weight, restorable stress deformation under low temperature and good comprehensive mechanical property.
Disclosure of Invention
Aiming at the defects in the prior art, the first purpose of the invention is to provide an ultra-light high-elasticity composite material applied to a fire hose.
The second purpose of the invention is to provide a preparation method of the composite material.
In order to achieve the first object, the invention is realized by the following technical scheme: an ultralight high-elasticity composite material applied to a fire hose comprises the following components in parts by weight 100: 15-25 parts of elastomer resin SEBS, 10-25 parts of paraffin oil, 40-50 parts of polyurethane, 2-5 parts of polyurethane grafting agent, 5-10 parts of polypropylene resin, 0.1-0.2 part of antibacterial agent, 0.1-0.2 part of antioxidant and the balance of filler.
Preferably, the elastomer resin SEBS is a high molecular weight polystyrene-polyethylene/butylene-polystyrene block copolymer.
Preferably, the polypropylene resin is one or a mixture of homopolymerized polypropylene, copolymerized polypropylene and random copolymerized polypropylene.
Preferably, the antioxidant is a hindered phenol antioxidant or a phosphite antioxidant.
Preferably, the antibacterial agent is nano titanium dioxide.
Preferably, the filler is one or more of calcium carbonate, diatomite, wollastonite, talcum powder, zeolite powder, carbon black and porous alumina.
Preferably, the particle size of the filler is 1000 to 2500 meshes.
By adopting the technical scheme, the SEBS is a high molecular weight polystyrene-polyethylene/butylene-polystyrene block copolymer, wherein the glass transition temperature Tg of the EB section is about 60 ℃ below zero, when an article made of a TPE material is applied, the EB section is a soft section in a high-elastic state, good elasticity is provided for the article made of the TPE material, the glass transition temperature Tg of the S section is about 95 ℃, and when the article made of the TPE material is applied, the S section is a hard section in a glass state and serves as a physical cross-linking point, and is dispersed in the soft section in an island shape, so that the article made of the TPE material has deformation restorability. The polypropylene resin can improve the strength and fluidity of the blend and adjust the hardness of the material. The calcium carbonate is used as the filler, so that the use amount of other raw materials can be reduced, the cost is reduced, and the shrinkage of the material during extrusion can be reduced.
In order to achieve the second object, the invention is realized by the following technical scheme: a preparation method of an ultralight high-elasticity composite material applied to a fire hose comprises the following steps:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
Preferably, the temperature in the barrel of the twin-screw extruder is: 160-170 ℃ in the first zone, 170-180 ℃ in the second zone, 180-190 ℃ in the third zone, 180-190 ℃ in the fourth zone, 180-190 ℃ in the fifth zone, 180-190 ℃ in the machine head and 200-400r/min of the rotating speed of the double-screw extruder.
The invention has the beneficial effects that:
(1) The TPE material generated by the invention can still keep good elasticity at a lower temperature and has good mechanical strength, and can keep good flexibility at a low temperature.
(2) The polypropylene resin has excellent high-temperature resistance, and the TPE material cannot be aged and damaged under the steam of 120 ℃ in the processing process of the fire hose, so that the feasibility of the application of the TPE material in the field of fire hoses is improved.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
An ultralight high-elasticity composite material applied to a fire hose, comprising: 15kg of elastomer resin SEBS, 25kg of paraffin oil, 50kg of polyurethane, 2kg of polyurethane grafting agent, 6kg of polypropylene resin, 0.1kg of antibacterial agent, 0.1kg of antioxidant and 1.8kg of filler.
In this example, the elastomer resin SEBS is a high molecular weight polystyrene-polyethylene/butylene-polystyrene block copolymer.
In this example, the polypropylene resin was homopolypropylene.
In this example, the antioxidant is a hindered phenol antioxidant.
In this embodiment, the antimicrobial agent is nano titanium dioxide.
In this example, the filler was calcium carbonate with a particle size of 1000 mesh.
A preparation method of an ultralight high-elasticity composite material applied to a fire hose comprises the following steps:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
In this example, the temperature in the barrel of the twin-screw extruder was: 160 ℃ in the first zone, 170 ℃ in the second zone, 180 ℃ in the third zone, 180 ℃ in the fourth zone, 185 ℃ in the fifth zone, 180 ℃ at the head and 200r/min at the speed of the double-screw extruder.
Example 2
An ultralight high-elasticity composite material applied to a fire hose, comprising: 20kg of elastomer resin SEBS, 15kg of paraffin oil, 45kg of polyurethane, 3kg of polyurethane grafting agent, 10kg of polypropylene resin, 0.2kg of antibacterial agent, 0.2kg of antioxidant and 6.6kg of filler.
In the present embodiment, the polypropylene resin is a copolymerized polypropylene.
In this example, the antioxidant is a phosphite antioxidant.
In this example, the antimicrobial agent was nano titanium dioxide.
In the embodiment, the filler is a mixture of porous alumina and wollastonite, the mass ratio of the porous alumina to the wollastonite is 2.
A preparation method of an ultralight high-elasticity composite material applied to a fire hose comprises the following steps:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature of higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
In this example, the temperature in the barrel of the twin-screw extruder was: 160 ℃ in the first zone, 170 ℃ in the second zone, 190 ℃ in the third zone, 190 ℃ in the fourth zone, 190 ℃ in the fifth zone, 180 ℃ at the head and 300r/min at the rotating speed of the double-screw extruder.
Example 3
An ultralight high-elasticity composite material applied to a fire hose, comprising: 25kg of elastomer resin SEBS, 10kg of paraffin oil, 40kg of polyurethane, 4kg of polyurethane grafting agent, 5kg of polypropylene resin, 0.1kg of antibacterial agent, 0.1kg of antioxidant and 15.8kg of filler.
In the present example, the polypropylene resin is random copolymer polypropylene.
In this example, the antioxidant is a phosphite antioxidant.
In this embodiment, the antimicrobial agent is nano titanium dioxide.
In the embodiment, the filler is a mixture of diatomite and talcum powder, the mass ratio of the diatomite to the talcum powder is 1.
A preparation method of an ultralight high-elasticity composite material applied to a fire hose comprises the following steps:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
In this example, the temperature in the barrel of the twin-screw extruder was: 170 ℃ in the first zone, 180 ℃ in the second zone, 190 ℃ in the third zone, 190 ℃ in the fourth zone, 190 ℃ in the fifth zone, 190 ℃ in the head and 400r/min in the rotating speed of the double-screw extruder.
Example 4
An ultralight high-elasticity composite material applied to a fire hose, comprising: 22kg of elastomer resin SEBS, 20kg of paraffin oil, 42kg of polyurethane, 5kg of polyurethane grafting agent, 5kg of polypropylene resin, 0.2kg of antibacterial agent, 0.2kg of antioxidant and 5.6kg of filler.
In this example, the polypropylene resin is a mixture of homopolypropylene and random copolymer polypropylene, and the mass ratio of the homopolypropylene to the random copolymer polypropylene is 1.
In this example, the antioxidant is a hindered phenol antioxidant.
In this embodiment, the antimicrobial agent is nano titanium dioxide.
In the embodiment, the filler is a mixture of zeolite powder and talcum powder, the mass ratio of the zeolite powder to the talcum powder is 1.
A preparation method of an ultralight high-elasticity composite material applied to a fire hose comprises the following steps:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
In this example, the temperature in the barrel of the twin-screw extruder was: 160 ℃ in the first zone, 170 ℃ in the second zone, 180 ℃ in the third zone, 190 ℃ in the fourth zone, 190 ℃ in the fifth zone, 190 ℃ in the head and 300r/min in the rotating speed of the double-screw extruder.
Example 5
An ultralight high-elasticity composite material applied to a fire hose, comprising: 18kg of elastomer resin SEBS, 20kg of paraffin oil, 45kg of polyurethane, 2kg of polyurethane grafting agent, 6kg of polypropylene resin, 0.1kg of antibacterial agent, 0.1kg of antioxidant and 8.8kg of filler.
In this example, the polypropylene resin was homopolypropylene.
In this example, the antioxidant is a hindered phenol antioxidant.
In this embodiment, the antimicrobial agent is nano titanium dioxide.
In this example, the filler is a mixture of zeolite powder and carbon black, the mass ratio of the two is 1.
A preparation method of an ultralight high-elasticity composite material applied to a fire hose comprises the following steps:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature of higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
In this example, the temperature in the barrel of the twin-screw extruder was: the first zone is 165 ℃, the second zone is 170 ℃, the third zone is 185 ℃, the fourth zone is 185 ℃, the fifth zone is 190 ℃, the head is 190 ℃, and the rotating speed of the double-screw extruder is 300r/min.
Test example 1
Test groups are as follows: example 1-example 5;
the test method comprises the following steps:
density (g/m) 3 ): testing according to ISO1183 standard;
melt index (g/10 min): testing according to ISO1133 standard;
shore hardness A: testing according to ISO7619-1 standard;
elongation at break (%): testing according to ISO37 standard;
tensile strength (Mpa): testing according to GB/T1040 standard;
and (3) test results: see table 1 for details.
TABLE 1 results of measuring properties of examples 1 to 5
Referring to table 1, the product obtained by the invention has low density and ultra-light performance, and when the product is applied to a fire hose, the whole fire hose has light weight, so that a fireman can carry the fire hose more easily, and the fire fighting efficiency is improved. And, high temperature resistant effect is better, and it is difficult ageing under high temperature environment, and when it is applied to fire hose for the holistic high temperature resistant effect of fire hose is better, and it is difficult ageing under high temperature environment, improves fire hose's life.
Test example 2
Test groups are as follows: example 3, comparative example 1 to comparative example 4, wherein the polypropylene resin addition amounts in comparative examples 1 to 4 are 0kg, 10kg, 15kg and 20kg in this order, and the other examples are the same as example 3;
the test method comprises the following steps:
sample test size: 300 x 300mm;
oven temperature: 30 ℃ below zero;
constant temperature time: 24 hours;
the testing steps are as follows: dividing the cut samples into two groups, wherein each group comprises 3 parallel samples, one group is curled along the injection molding direction of the product, the other group is curled perpendicular to the injection molding direction, the samples are sequentially curled into cylinders with the diameter of 80mm, and the cylinders are fixed by rubber bands and then placed in an oven at the temperature of-30 ℃ for 24 hours.
After the constant-temperature curling is finished, the bound rubber band is rapidly untied, is horizontally and freely spread in an oven, and the temperature is kept unchanged. And respectively measuring the distance h from the edge of the sample to the horizontal supporting surface after 25 minutes, wherein the smaller the distance h is, the better the deformation recovery of the sample material is, and generally, the h is less than or equal to 5mm, and the sample material is qualified.
And (3) test results: see table 2 for details.
TABLE 2 test results of elastic recovery of each group of products
Referring to table 2, the product without polypropylene resin has poor elastic recovery, and the data of comparative example 3 and comparative examples 2 to 4 show that the distance h increases with the addition of polypropylene resin, and the sample is difficult to recover to the original horizontal state after being deformed by force. In view of the above, the amount of the polypropylene resin to be added is preferably 5 to 10 kg.
Test example 3
Test groups are as follows: example 1, comparative example 5 to comparative example 10, wherein the particle diameters of the fillers in comparative example 5 to comparative example 10 are 500 mesh, 1500 mesh, 2000 mesh, 2500 mesh, 3000 mesh, 3500 mesh in this order;
the test method comprises the following steps:
elongation at break (%): testing according to ISO37 standard;
tensile strength (Mpa): testing according to GB/T1040 standard;
and (3) test results: see table 3 for details.
TABLE 3 Effect of filler particle size on product Properties
| Filler particle size/mesh | Elongation at Break (%) | Tensile strength (Mpa) | |
| Comparative example 5 | 500 | ＞450 | 28 |
| Example 1 | 1000 | ＞550 | 36 |
| Comparative example 6 | 1500 | ＞580 | 37 |
| Comparative example 7 | 2000 | ＞600 | 37 |
| Comparative example 8 | 2500 | ＞620 | 38 |
| Comparative example 9 | 3000 | ＞650 | 30 |
| Comparative example 10 | 3500 | ＞670 | 26 |
Referring to table 3, as the number of the particle size of the filler increases, the elongation at break also gradually increases, but the tensile strength becomes poor, and when the particle size of the filler is 1000 to 2500 mesh, the elongation at break and the tensile strength are optimal.
Test example 4
And (3) test groups: example 1 and comparative example 11, wherein the temperatures of the first zone, the second zone, the third zone, the fourth zone, the fifth zone and the head in the barrel of the twin-screw extruder of comparative example 11 are all 180 ℃, and the other steps are the same as example 1;
the test method comprises the following steps:
elongation at break (%): testing according to ISO37 standard;
tensile strength (Mpa): testing according to GB/T1040 standard;
and (3) test results: see table 4 for details.
TABLE 4 influence of the production Process conditions on the product Properties
| Example 1 | Comparative example 11 | |
| Elongation at break(％) | ＞550 | ＞350 |
| Tensile strength (Mpa) | 36 | 25 |
Referring to table 4, the product obtained by the preparation method of the present invention has good elongation at break and tensile strength, which indicates that different temperatures are set in different sections of the screw extruder to facilitate the mixing of the product, so that the product performance is improved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The ultra-light high-elasticity composite material applied to the fire hose is characterized by comprising the following components in parts by weight 100: 15-25 parts of elastomer resin SEBS, 10-25 parts of paraffin oil, 40-50 parts of polyurethane, 2-5 parts of polyurethane grafting agent, 5-10 parts of polypropylene resin, 0.1-0.2 part of antibacterial agent, 0.1-0.2 part of antioxidant and the balance of filler.
2. The ultra-light high-elasticity composite material applied to the fire hose according to claim 1, wherein the elastomer resin SEBS is a high-molecular-weight polystyrene-polyethylene/butylene-polystyrene block copolymer.
3. The ultra-light high-elasticity composite material applied to the fire hose according to claim 2, wherein the polypropylene resin is one or a mixture of homo-polypropylene, co-polypropylene and random co-polypropylene.
4. The ultra-light high-elasticity composite material applied to the fire hose according to claim 3, wherein the antioxidant is a hindered phenol antioxidant or a phosphite antioxidant.
5. The ultra-light high-elasticity composite material applied to the fire hose according to claim 4, wherein the antibacterial agent is nano titanium dioxide.
6. The ultra-light high-elasticity composite material applied to the fire hose according to claim 5, wherein the filler is one or more of calcium carbonate, diatomite, wollastonite, talcum powder, zeolite powder, carbon black and porous alumina.
7. The ultra-light high-elasticity composite material for the fire hose according to claim 6, wherein the filler has a particle size of 1000-2500 meshes.
8. A method of preparing a composite material according to any one of claims 1 to 7, comprising the steps of:
s1: adding elastomer resin SEBS, polypropylene resin and filler into a stirrer, stirring at 45 ℃, gradually heating, and adding paraffin oil; after the paraffin oil is uniformly absorbed, adding an antioxidant, polyurethane, a polyurethane grafting agent and an antibacterial agent, and discharging at the temperature of higher than 85 ℃;
s2: and after discharging, feeding the mixture into a double-screw extruder for granulation.
9. The preparation method of the ultralight high-elasticity composite material applied to the fire hose according to claim 8, wherein the temperature in a barrel of the twin-screw extruder is as follows: 160-170 ℃ in the first zone, 170-180 ℃ in the second zone, 180-190 ℃ in the third zone, 180-190 ℃ in the fourth zone, 180-190 ℃ in the fifth zone, 180-190 ℃ in the head and 200-400r/min in the rotating speed of the double-screw extruder.
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| CN111391275A (en) * | 2020-05-20 | 2020-07-10 | 东莞市山普科技有限公司 | Production process of modified TPE material and modified TPE material |
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2022
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| US20110224019A1 (en) * | 2010-03-10 | 2011-09-15 | Nike, Inc. | Hydrophobic Thermoplastic Polyurethane As A Compatilizer For Polymer Blends For Golf Balls |
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