CN104194119B - A kind of life vest and preparation method thereof - Google Patents
A kind of life vest and preparation method thereof Download PDFInfo
- Publication number
- CN104194119B CN104194119B CN201410420862.XA CN201410420862A CN104194119B CN 104194119 B CN104194119 B CN 104194119B CN 201410420862 A CN201410420862 A CN 201410420862A CN 104194119 B CN104194119 B CN 104194119B
- Authority
- CN
- China
- Prior art keywords
- parts
- polyether
- life vest
- foaming
- tribasic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 63
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 28
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 26
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 26
- 238000005187 foaming Methods 0.000 claims abstract description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004088 foaming agent Substances 0.000 claims abstract description 21
- OCWMFVJKFWXKNZ-UHFFFAOYSA-L lead(2+);oxygen(2-);sulfate Chemical compound [O-2].[O-2].[O-2].[Pb+2].[Pb+2].[Pb+2].[Pb+2].[O-]S([O-])(=O)=O OCWMFVJKFWXKNZ-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000004135 Bone phosphate Substances 0.000 claims abstract description 16
- 239000012948 isocyanate 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
- -1 polyoxyalkylene Substances 0.000 claims abstract description 14
- 239000008117 stearic acid Substances 0.000 claims abstract description 14
- 239000011787 zinc oxide Substances 0.000 claims abstract description 14
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims abstract description 13
- CJKRXEBLWJVYJD-UHFFFAOYSA-N N,N'-diethylethylenediamine Chemical compound CCNCCNCC CJKRXEBLWJVYJD-UHFFFAOYSA-N 0.000 claims abstract description 12
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 8
- RNPXCFINMKSQPQ-UHFFFAOYSA-N dicetyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCCCC RNPXCFINMKSQPQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 21
- 229920000570 polyether Polymers 0.000 claims description 12
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 claims description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 7
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 description 26
- 229920000573 polyethylene Polymers 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229920000092 linear low density polyethylene Polymers 0.000 description 7
- 239000004707 linear low-density polyethylene Substances 0.000 description 7
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 229920001084 poly(chloroprene) Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
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- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 206010013647 Drowning Diseases 0.000 description 1
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000009757 thermoplastic moulding Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
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- 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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- 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)
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Abstract
This application discloses a kind of life vest and preparation method thereof, weigh LDPE, toluene di-isocyanate(TDI), tribasic lead sulfate, polyether-tribasic alcohol, DCP, triethylene diamine, foaming agent, polyoxyalkylene, EVA, diethyl ethylene diamine, crosslinking agent, dibutyl tin laurate, zinc oxide, stannous octoate and stearic acid according to parts by weight proportioning, after plasticating, be molded into blank foaming；Product relative density 0.03 0.05, absorptivity 5 15mg/cm3；Linear shrinkage ratio 1 2%, hot strength 0.4 0.8MPa；Percentage elongation 150 250%, under 80 90 DEG C of high temperature, 24h is unchanged, and at 50 DEG C, 20 24h are unchanged.
Description
Technical field
The application belongs to life vest preparation technology field, particularly relates to a kind of life vest and preparation method thereof.
Background technology
Life vest, is an overcoat, and proportion relatively water is light, and order wears life vest, and person floats on seawater, up to water activity lifesaving it
Effect.The material component of life vest is mainly foamed glue or air blowing bubble.Appearance color mostly is fresh look, such as bright orange, banana
Yellow etc., convenient to lifeboat discovery.Life vest, also known as life vest, is a kind of clothes giving first aid to life, the similar vest of design,
Using nylon facing material or neoprene (NEOPRENE), buoyant material or inflatable material, reflectorized material etc. is made.One
As service life be 5-7, be one of lifesaving appliance on ship, on aircraft.Generally vest type, with foamed plastics or cork
Etc. making.Wear and there is enough buoyancy, make drowning people's head to surface.Buoyant material filled type life vest, i.e. uses
Nylon cloth or neoprene make fabric, central filler buoyant material.Inflatable life jacket: use intensity height waterproof material manufacture and
Become, similar type inflatable life buoy or the principle of water wing.Divide automatic inflation type or passive inflatable.But this life vest should
Considerable: definitely to avoid sharp object to expose or gall waterproof layer, hardly imaginable serious consequence can be caused after gas leakage.
Polyethylene (polyethylene is called for short PE) is the aggregated prepared a kind of thermoplastic resin of ethene.Industrially,
Also the copolymer of ethene and a small amount of alpha-olefin is included.Polyethylene odorless, nontoxic, feel ceraceous, there is excellent resistance to low temperature,
Chemical stability is good, is resistant to the erosion of most of soda acid.Insoluble in common solvent under normal temperature, water imbibition is little, and electrical insulating property is excellent.
Polyethylene is crystalline thermoplastic resin.Their chemical constitution, molecular weight, the degree of polymerization and other performances largely all rely on
In the polymerization used.Polymerization determines type and the side chain degree of side chain.Degree of crystallinity depends on the alignment degree of part strand
The thermal history experienced with it.Polyethylene is very sensitive for environmental stress (chemistry and mechanism), and heat-resistant aging is worse than
The chemical constitution of polymer and processing bar.Polyethylene can be processed with the forming method (see plastic processing) of general thermoplastic.With
The most quite varied, it is mainly used to manufacture film, packaging material, container, pipeline, monofilament, electric wire, commodity etc., and
Can be as the high-frequency insulation material of TV, radar etc..Along with the development of petrochemical industry, polyethylene production is developed rapidly, produces
Amount accounts for the 1/4 of plastics total output.Nineteen eighty-three world's polyethylene total productive capacity is 24.65Mt, is 3.16Mt building device capability.
Recent statistics result in 2011, whole world production capacity reaches 96Mt, and the development trend of polyethylene production shows, productive consumption is progressively to Asia
Area, continent is shifted, and China day by day becomes most important consumption market.Polyethylene (PE) plastics are a kind of, the convenient bag that we usually carry
It is exactly polyethylene (PE).Polyethylene is the simplest macromolecule of structure, is also most widely used macromolecular material.It is by weight
Multiple CH2 unit is formed by connecting.Polyethylene is the generation polyaddition reaction by ethene (CH2=CH2).
LLDPE application has penetrated into all LDPE market the most.Present stage LLDPE and HDPE is in the growth rank of life cycle
Section；LDPE then progresses into the full-fledged phase in 1980 generation ends, and the rarest LDPE equipment is gone into operation.Polyethylene can be with squeezing
Go out, inject, mold, be blow molded and the shaping of the method such as melt-spun, be widely used in industry, agricultural, packaging and daily industry,
China's application is quite extensive, and film is the user of its maximum, about consumption low density polyethylene (LDPE) 77%, the 18% of high density polyethylene (HDPE),
It addition, injection-molded item, electric wire, hollow product etc. all occupy bigger ratio, in its consumption structure in plastics industry
Occupy very important status.Polyethylene is typical thermoplastic, is odorless, tasteless, nontoxic flammable white powder.
The PE resin of processing and forming is all the wax-like particulate material of extruded granulation, and outward appearance is creamy white.Its molecular weight is at 10,000 one loa ten thousand
In the range of.Molecular weight is then ultra-high molecular weight polyethylene f UHMWPE3 more than 100,000.Molecular weight is the highest, its physical mechanics property
Can be the best, closer to the requirement level of engineering material.But molecular weight is the highest, the difficulty of its processing increases the most therewith.Polyethylene melts
Point is excellent for its resistance to low temperature of 10---130C.At one 60 DEG C, still can keep good mechanical property, but use temperature to exist
80～110 DEG C.Polyethylene chemical stability is preferable, be resistant under room temperature dust technology, dilute sulfuric acid and the hydrochloric acid of any concentration, hydrofluoric acid,
The solution such as phosphoric acid, formic acid, acetic acid, ammoniacal liquor, amine, hydrogen peroxide, NaOH, potassium hydroxide.But not powerful oxidation corrosion resistance
Corrosion, such as the mixed liquor of oleum red fuming nitric acid (RFNA), chromic acid and sulfuric acid.Polyethylene can be produced slowly by the most above-mentioned solvent
Corrosion function, and at 90---100 DEG C, the concentrated sulfuric acid and red fuming nitric acid (RFNA) can corrode polyethylene rapidly so that it is destroy or decompose.
Polyethylene is under the effect of air, sunlight and oxygen, it may occur that aging, variable color, chaps, becomes fragile or efflorescence, loses its mechanical property
Energy.At a temperature of processing and forming, also can be because of oxidation so that it is melt degree of killing declines, there is variable color, striped occurs, so
Attention is should give when processing and forming and use process or selection.Just because of polyethylene has as above speciality, it is easily worked shaping,
Therefore the regeneration of polyethylene is reclaimed and is had the most far-reaching value.
Low density polyethylene (LDPE) (LDPE) is a kind of plastic material, and it is suitable for the various moulding process of thermoplastic molding's processing, shaping
Processability is good.LDPE is mainly used for making film product, is additionally operable to injection-molded item, medical apparatus, medicine and packaging for foodstuff material
Material, blowing hollow molding goods etc..Generally, LLDPE resin density and melt index (MI) characterize.Density is by polymer chain
The concentration of comonomer determines.The concentration of comonomer determines the short-chain branch amount in polymer.The length of short-chain branch then depends on
The type of comonomer.Comonomer concentration is the highest, and the density of resin is the lowest.Additionally, melt index (MI) is resin mean molecule quantity
Reflection, mainly by reaction temperature (solwution method) and add chain-transferring agent (vapor phase method) determine.Mean molecule quantity and molecule
Amount distribution is unrelated, and the latter is mainly affected by catalyst type, due to domestic large-scale production hexene, the octene of there is no, and import price
Lattice are more expensive, and therefore, the LLDPE resin of domestic production now mainly uses butylene as comonomer.Some enterprise domestic is introducing
Though during LLDPE process units, useful hexene makees the trade mark of comonomer, but has to abandon, only because of domestic production without hexene eventually
The a small amount of hexene of import when driving examination.The high-grade LLDPE of China's import mostly is this series products.Anticipated to 1-hexene it is from now on
The LLDPE demand of monomer will increase by a fairly big margin.And popularizing along with humanity concept, and the composition of novel harmonious society, design
Life vest that a kind of absorptivity is low, hot strength is high, linear shrinkage ratio is low and percentage elongation is high and preparation method thereof is the most necessary
's.
Summary of the invention
Solve the technical problem that:
The application is for above-mentioned technical problem, it is provided that a kind of life vest and preparation method thereof, solves existing life vest absorptivity
The technical problem such as high, hot strength is low, linear shrinkage ratio is high and percentage elongation is low.
Technical scheme:
A kind of life vest, the raw materials by weight portion proportioning of described life vest is as follows: LDPE100 part；Toluene di-isocyanate(TDI) 40-50
Part；Tribasic lead sulfate 3-5 part；Polyether-tribasic alcohol 40-50 part；DCP1.2-1.8 part；Triethylene diamine 0.3-0.5 part；
Foaming agent 20-40 part；Polyoxyalkylene 3-5 part；EVA35-55 part；Diethyl ethylene diamine is 0.6-1 part；Crosslinking agent 0.1-0.5
Part；Dibutyl tin laurate is 0.2-0.6 part；Zinc oxide 5-25 part；Stannous octoate 0.2-0.8 part；Stearic acid 2-8 part.
As a preferred technical solution of the present invention: the raw materials by weight portion proportioning of described life vest is as follows: LDPE100 part；
Toluene di-isocyanate(TDI) 42-48 part；Tribasic lead sulfate 3.5-4.5 part；Polyether-tribasic alcohol 44-46 part；DCP1.4-1.6 part；
Triethylene diamine 0.35-0.45 part；Foaming agent 25-35 part；Polyoxyalkylene 3.5-4.5 part；EVA40-50 part；Diethyl second
Hydramine is 0.7-0.9 part；Crosslinking agent 0.2-0.4 part；Dibutyl tin laurate is 0.3-0.5 part；Zinc oxide 10-20 part；
Stannous octoate 0.4-0.6 part；Stearic acid 3-7 part.
As a preferred technical solution of the present invention: the raw materials by weight portion proportioning of described life vest is as follows: LDPE100 part；
Toluene di-isocyanate(TDI) 45 parts；Tribasic lead sulfate 4 parts；Polyether-tribasic alcohol 45 parts；DCP1.5 part；Triethylene diamine 0.4
Part；Foaming agent 30 parts；Polyoxyalkylene 4 parts；EVA45 part；Diethyl ethylene diamine is 0.8 part；Crosslinking agent 0.3 part；February
Dilaurylate is 0.4 part；15 parts of zinc oxide；Stannous octoate 0.5 part；Stearic acid 5 parts.
As a preferred technical solution of the present invention: described foaming agent uses fluoro trichloromethane or AC foaming agent.
As a preferred technical solution of the present invention: described crosslinking agent uses N-aminoethyl ethanolamine or polyether triol.
As a preferred technical solution of the present invention: the preparation method of described life vest, comprise the steps:
The first step: according to parts by weight proportioning weigh LDPE, toluene di-isocyanate(TDI), tribasic lead sulfate, polyether-tribasic alcohol,
DCP, triethylene diamine, foaming agent, polyoxyalkylene, EVA, diethyl ethylene diamine, crosslinking agent, two bays
Acid dibutyl tin, zinc oxide, stannous octoate and stearic acid；
Second step: first by LDPE at the mixing 4-8min of plasticator, plasticating temperature 110-130 DEG C, treats LDPE plasticizing in flakes, adds
Enter toluene di-isocyanate(TDI), tribasic lead sulfate, polyether-tribasic alcohol and foaming agent be cooled to 80-100 DEG C mixing
8-12min, adds surplus stock, mixing 6-10min at 80-110 DEG C；
3rd step: be molded into blank, loads mould the material after mixing, is warming up to 150-170 DEG C, at pressure 0.6-0.8MPa
Lower mold pressing 14-18min, after being cooled to 20-40 DEG C, takes out blank；
4th step: foaming, loads blank in the mould of foaming, foams at 200-220 DEG C, heat 10-15min,
Foaming.
Beneficial effect:
A kind of life vest of the present invention and preparation method thereof uses above technical scheme compared with prior art, has techniques below
Effect: 1, product relative density 0.03-0.05, absorptivity 5-15mg/cm3；2, linear shrinkage ratio 1-2%, hot strength
0.4-0.8MPa；3, percentage elongation 150-250%, under 80-90 DEG C of high temperature, 24h is unchanged；4, cold resistance is good, 20-24h at-50 DEG C
Unchanged, can be with the widespread production not division of history into periods for current material.
Detailed description of the invention
Embodiment 1:
LDPE100 part is weighed according to parts by weight proportioning；Toluene di-isocyanate(TDI) 40 parts；Tribasic lead sulfate 3 parts；Polyethers three
Unit's alcohol 40 parts；DCP1.2 part；Triethylene diamine 0.3 part；Fluoro trichloromethane 20 parts；Polyoxyalkylene 3 parts；EVA35 part；
Diethyl ethylene diamine is 0.6 part；N-aminoethyl ethanolamine 0.1 part；Dibutyl tin laurate is 0.2 part；5 parts of zinc oxide；
Stannous octoate 0.2 part；Stearic acid 2 parts.
First by LDPE at the mixing 4min of plasticator, plasticating temperature 110 DEG C, treat LDPE plasticizing in flakes, add toluene diisocynate
Ester, tribasic lead sulfate, polyether-tribasic alcohol and foaming agent are cooled to 80 DEG C of mixing 8min, add surplus stock, at 80 DEG C
Mixing 6min.
It is molded into blank, the material after mixing is loaded mould, is warming up to 150 DEG C, under pressure 0.6MPa, mold 14min,
After being cooled to 20 DEG C, take out blank；Foaming, loads blank in the mould of foaming, foams, add at 200 DEG C
Hot 10min, foaming.
Product relative density 0.05, absorptivity 15mg/cm3；Linear shrinkage ratio 2%, hot strength 0.4MPa；Percentage elongation 150%,
Under 80 DEG C of high temperature, 24h is unchanged, and at-50 DEG C, 20h is unchanged.
Embodiment 2:
LDPE100 part is weighed according to parts by weight proportioning；Toluene di-isocyanate(TDI) 50 parts；Tribasic lead sulfate 5 parts；Polyethers three
Unit's alcohol 50 parts；DCP1.8 part；Triethylene diamine 0.5 part；Fluoro trichloromethane 40 parts；Polyoxyalkylene 5 parts；EVA55 part；
Diethyl ethylene diamine is 1 part；N-aminoethyl ethanolamine 0.5 part；Dibutyl tin laurate is 0.6 part；25 parts of zinc oxide；
Stannous octoate 0.8 part；Stearic acid 8 parts.
First by LDPE at the mixing 8min of plasticator, plasticating temperature 130 DEG C, treat LDPE plasticizing in flakes, add toluene diisocynate
Ester, tribasic lead sulfate, polyether-tribasic alcohol and foaming agent are cooled to 100 DEG C of mixing 12min, add surplus stock, at 110 DEG C
Under mixing 10min.
It is molded into blank, the material after mixing is loaded mould, is warming up to 170 DEG C, under pressure 0.8MPa, mold 18min,
After being cooled to 40 DEG C, take out blank；Foaming, loads blank in the mould of foaming, foams, add at 220 DEG C
Hot 15min, foaming.
Product relative density 0.045, absorptivity 8mg/cm3；Linear shrinkage ratio 1.8%, hot strength 0.5MPa；Percentage elongation
180%, under 82 DEG C of high temperature, 24h is unchanged, and at-50 DEG C, 21h is unchanged.
Embodiment 3:
LDPE100 part is weighed according to parts by weight proportioning；Toluene di-isocyanate(TDI) 42 parts；Tribasic lead sulfate 3.5 parts；Polyethers
Trihydroxylic alcohol 44 parts；DCP1.4 part；Triethylene diamine 0.35 part；AC foaming agent 25 parts；Polyoxyalkylene 3.5 parts；EVA40
Part；Diethyl ethylene diamine is 0.7 part；N-aminoethyl ethanolamine 0.2 part；Dibutyl tin laurate is 0.3 part；Zinc oxide
10 parts；Stannous octoate 0.4 part；Stearic acid 3 parts.
First by LDPE at the mixing 5min of plasticator, plasticating temperature 115 DEG C, treat LDPE plasticizing in flakes, add toluene diisocynate
Ester, tribasic lead sulfate, polyether-tribasic alcohol and foaming agent are cooled to 85 DEG C of mixing 9min, add surplus stock, at 90 DEG C
Mixing 7min.
It is molded into blank, the material after mixing is loaded mould, is warming up to 155 DEG C, under pressure 0.65MPa, mold 15min,
After being cooled to 25 DEG C, take out blank；Foaming, loads blank in the mould of foaming, foams, add at 205 DEG C
Hot 12min, foaming.
Product relative density 0.04, absorptivity 10mg/cm3；Linear shrinkage ratio 1.5%, hot strength 0.6MPa；Percentage elongation
200%, under 85 DEG C of high temperature, 24h is unchanged, and at-50 DEG C, 22h is unchanged.
Embodiment 4:
LDPE100 part is weighed according to parts by weight proportioning；Toluene di-isocyanate(TDI) 48 parts；Tribasic lead sulfate 4.5 parts；Polyethers
Trihydroxylic alcohol 46 parts；DCP1.6 part；Triethylene diamine 0.45 part；AC foaming agent 35 parts；Polyoxyalkylene 4.5 parts；EVA50
Part；Diethyl ethylene diamine is 0.9 part；Polyether triol 0.4 part；Dibutyl tin laurate is 0.5 part；20 parts of zinc oxide；
Stannous octoate 0.6 part；Stearic acid 7 parts.
First by LDPE at the mixing 7min of plasticator, plasticating temperature 125 DEG C, treat LDPE plasticizing in flakes, add toluene diisocynate
Ester, tribasic lead sulfate, polyether-tribasic alcohol and foaming agent are cooled to 95 DEG C of mixing 11min, add surplus stock, at 100 DEG C
Under mixing 9min.
It is molded into blank, the material after mixing is loaded mould, is warming up to 165 DEG C, under pressure 0.75MPa, mold 17min,
After being cooled to 35 DEG C, take out blank；Foaming, loads blank in the mould of foaming, foams, add at 215 DEG C
Hot 14min, foaming.
Product relative density 0.035, absorptivity 12mg/cm3；Linear shrinkage ratio 1.2%, hot strength 0.7MPa；Percentage elongation
220%, under 88 DEG C of high temperature, 24h is unchanged, and at-50 DEG C, 23h is unchanged.
Embodiment 5:
LDPE100 part is weighed according to parts by weight proportioning；Toluene di-isocyanate(TDI) 45 parts；Tribasic lead sulfate 4 parts；Polyethers three
Unit's alcohol 45 parts；DCP1.5 part；Triethylene diamine 0.4 part；AC foaming agent 30 parts；Polyoxyalkylene 4 parts；EVA45 part；Two
Ehtylethanolamine is 0.8 part；Polyether triol 0.3 part；Dibutyl tin laurate is 0.4 part；15 parts of zinc oxide；Octanoic acid is sub-
0.5 part of tin；Stearic acid 5 parts.
First by LDPE at the mixing 6min of plasticator, plasticating temperature 120 DEG C, treat LDPE plasticizing in flakes, add toluene diisocynate
Ester, tribasic lead sulfate, polyether-tribasic alcohol and foaming agent are cooled to 90 DEG C of mixing 10min, add surplus stock, at 95 DEG C
Mixing 8min.
It is molded into blank, the material after mixing is loaded mould, is warming up to 160 DEG C, under pressure 0.7MPa, mold 16min,
After being cooled to 30 DEG C, take out blank；Foaming, loads blank in the mould of foaming, foams, add at 210 DEG C
Hot 13min, foaming.
Product relative density 0.03, absorptivity 5mg/cm3；Linear shrinkage ratio 1%, hot strength 0.8MPa；Percentage elongation 250%,
Under 90 DEG C of high temperature, 24h is unchanged, and at-50 DEG C, 24h is unchanged.
Composition all components in above example all can be commercially available.
Above-described embodiment is only intended to be illustrated present disclosure rather than limit, and therefore wants in the right with the present invention
Ask any change in the implication and scope that book is suitable, be all considered as being included within the scope of the claims.
Claims (4)
1. a life vest, it is characterised in that the raw materials by weight portion proportioning of described life vest is as follows: LDPE100 part；Toluene di-isocyanate(TDI) 40-50 part；Tribasic lead sulfate 3-5 part；Polyether-tribasic alcohol 40-50 part；DCP1.2-1.8 part；Triethylene diamine 0.3-0.5 part；Fluoro trichloromethane or AC foaming agent 20-40 part；Polyoxyalkylene 3-5 part；EVA35-55 part；Diethyl ethylene diamine is 0.6-1 part；Crosslinking agent N-aminoethyl ethanolamine or polyether triol 0.1-0.5 part；Dibutyl tin laurate is 0.2-0.6 part；Zinc oxide 5-25 part；Stannous octoate 0.2-0.8 part；Stearic acid 2-8 part.
A kind of life vest the most according to claim 1, it is characterised in that described life vest raw materials by weight portion proportioning is as follows: LDPE100 part；Toluene di-isocyanate(TDI) 42-48 part；Tribasic lead sulfate 3.5-4.5 part；Polyether-tribasic alcohol 44-46 part；DCP1.4-1.6 part；Triethylene diamine 0.35-0.45 part；Fluoro trichloromethane or AC foaming agent 25-35 part；Polyoxyalkylene 3.5-4.5 part；EVA40-50 part；Diethyl ethylene diamine is 0.7-0.9 part；Crosslinking agent N-aminoethyl ethanolamine or polyether triol 0.2-0.4 part；Dibutyl tin laurate is 0.3-0.5 part；Zinc oxide 10-20 part；Stannous octoate 0.4-0.6 part；Stearic acid 3-7 part.
A kind of life vest the most according to claim 1, it is characterised in that the raw materials by weight portion proportioning of described life vest is as follows: LDPE100 part；Toluene di-isocyanate(TDI) 45 parts；Tribasic lead sulfate 4 parts；Polyether-tribasic alcohol 45 parts；DCP1.5 part；Triethylene diamine 0.4 part；Fluoro trichloromethane or AC foaming agent 30 parts；Polyoxyalkylene 4 parts；EVA45 part；Diethyl ethylene diamine is 0.8 part；Crosslinking agent N-aminoethyl ethanolamine or polyether triol 0.3 part；Dibutyl tin laurate is 0.4 part；15 parts of zinc oxide；Stannous octoate 0.5 part；Stearic acid 5 parts.
4. the preparation method of life vest described in a claim 1, it is characterised in that comprise the steps:
The first step: weigh LDPE, toluene di-isocyanate(TDI), tribasic lead sulfate, polyether-tribasic alcohol, DCP, triethylene diamine, fluoro trichloromethane or AC foaming agent, polyoxyalkylene, EVA, diethyl ethylene diamine, crosslinking agent N-aminoethyl ethanolamine or polyether triol, dibutyl tin laurate, zinc oxide, stannous octoate and stearic acid according to parts by weight proportioning；
Second step: first by LDPE at the mixing 4-8min of plasticator, plasticating temperature 110-130 DEG C, treat LDPE plasticizing in flakes, add toluene di-isocyanate(TDI), tribasic lead sulfate, polyether-tribasic alcohol and foaming agent and be cooled to 80-100 DEG C of mixing 8-12min, add surplus stock, mixing 6-10min at 80-110 DEG C；
3rd step: be molded into blank, loads mould the material after mixing, is warming up to 150-170 DEG C, molds 14-18min under pressure 0.6-0.8MPa, after being cooled to 20-40 DEG C, takes out blank；
4th step: foaming, loads blank in the mould of foaming, foams at 200-220 DEG C, heat 10-15min, foaming.
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| CN105820426A (en) * | 2016-05-20 | 2016-08-03 | 太仓善融信息服务有限公司 | Hard foamed plastic swimming ring |
| CN106519381A (en) * | 2016-11-02 | 2017-03-22 | 天津毅兴彩科技有限公司 | A plastic life jacket used for ships and a preparing method thereof |
| CN114149554B (en) * | 2021-11-30 | 2023-07-14 | 山东一诺威新材料有限公司 | Polyurethane composition for life-saving equipment and preparation method thereof |
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| CN104194119A (en) | 2014-12-10 |
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