CN1760278A - Wax-for preventing rubber - Google Patents
Wax-for preventing rubber Download PDFInfo
- Publication number
- CN1760278A CN1760278A CN 200410080803 CN200410080803A CN1760278A CN 1760278 A CN1760278 A CN 1760278A CN 200410080803 CN200410080803 CN 200410080803 CN 200410080803 A CN200410080803 A CN 200410080803A CN 1760278 A CN1760278 A CN 1760278A
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- Prior art keywords
- wax
- paraffin
- rubber
- preventing rubber
- dosage
- 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.)
- Granted
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 71
- 239000005060 rubber Substances 0.000 title claims abstract description 71
- 239000001993 wax Substances 0.000 claims abstract description 75
- 239000012188 paraffin wax Substances 0.000 claims abstract description 66
- 239000004200 microcrystalline wax Substances 0.000 claims abstract description 47
- 235000019808 microcrystalline wax Nutrition 0.000 claims abstract description 47
- 229920000573 polyethylene Polymers 0.000 claims abstract description 41
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims abstract description 24
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229960001826 dimethylphthalate Drugs 0.000 claims abstract description 12
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims description 45
- 239000004698 Polyethylene Substances 0.000 claims description 40
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 24
- 239000003112 inhibitor Substances 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 21
- 238000007254 oxidation reaction Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 9
- 239000010779 crude oil Substances 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 abstract description 10
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 2
- 230000003064 anti-oxidating effect Effects 0.000 abstract 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 abstract 1
- 239000000047 product Substances 0.000 description 12
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000003223 protective agent Substances 0.000 description 6
- 238000012216 screening Methods 0.000 description 6
- 238000010257 thawing Methods 0.000 description 6
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000004203 carnauba wax Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- JXTHNDFMNIQAHM-UHFFFAOYSA-N dichloroacetic acid Chemical compound OC(=O)C(Cl)Cl JXTHNDFMNIQAHM-UHFFFAOYSA-N 0.000 description 3
- 229960005215 dichloroacetic acid Drugs 0.000 description 3
- 229920001038 ethylene copolymer Polymers 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 235000019271 petrolatum Nutrition 0.000 description 3
- 239000012169 petroleum derived wax Substances 0.000 description 3
- 235000019381 petroleum wax Nutrition 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 244000286663 Ficus elastica Species 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 235000013869 carnauba wax Nutrition 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000006187 pill Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-AAKVHIHISA-N 2,3-bis[[(z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (z)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(O)CCCCCC)COC(=O)CCCCCCC\C=C/CC(O)CCCCCC ZEMPKEQAKRGZGQ-AAKVHIHISA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical class OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010009866 Cold sweat Diseases 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 239000012166 beeswax Substances 0.000 description 1
- 229940092738 beeswax Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 229920006228 ethylene acrylate copolymer Polymers 0.000 description 1
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 1
- 239000005043 ethylene-methyl acrylate Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229940056211 paraffin Drugs 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 150000003097 polyterpenes Chemical class 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
A protecting wax for rubber is proportionally prepared through mixing the paraffin wax with 40-70 deg.C for smelting point with microcrystalline wax with 70-90 deg.C for smelting point, and adding polyethene wax and the antioxidizing agent chosen from N-isopropyl-N-phenylbenzodiamine, dimethyl phthalate and 2,6-di-tert-butyl p-cresol. It can prevent ageing and cracking of rubber.
Description
Technical field
The present invention relates to rubber industry, specifically, is a kind of Wax-for preventing rubber.
Background technology
China's rubber industry development at present is swift and violent, but rubber item is in processing, storage and use, be subjected to ' invasion and attack ' of airborne oxygen and ozone, be subjected to the comprehensive action of physical factors such as light, heat, radiation, mechanical force and other chemical factor simultaneously, a series of catabiosis such as the result can make rubber item produce to be clamminess, hardening embrittlement or be full of cracks have had a strong impact on the application of rubber item in the tire industry.At present China's radial output increases year by year, and to take the method caching of air storage, static ozone ageing before dispatching from the factory be a very serious problem more, and it is improper to solve, and then tire is promptly aging before dispatching from the factory, so must take corresponding safeguard procedures.
The protection of rubber item is divided into chemical protection and physical protection.Mostly chemical protection is to add the compound of aniline structure in rubber item.The phenyl amines protective agent has certain toxicity, and must be under dynamic situation the competence exertion protective effect, when static state, chemical antiager is very slow to the migration on surface, can't play the purpose that prevents ozone ageing.Physical protection is to add a certain proportion of protection wax in rubber item, form on the surface one deck continuously, protective membrane uniformly, can prolong work-ing life of rubber in static state, the Reinforced Rubber antioxidant property suppresses the generation of catabiosis effectively.
Other relevant patent is as follows by retrieval:
1 Chinese patent (application number 91111953) rubber protecting agent, a kind of rubber protecting agent is characterized in that, it is by the hydrogenation Microcrystalline Wax, industrial paraffin, new LDPE (film grade), purification ceresine and oxidation inhibitor are formed.
2 Chinese patents (application number 01106005) Wax-for preventing rubber, a kind of Wax-for preventing rubber is characterized in that, it is by low melt point paraffin, inspissated wax, Microcrystalline Wax and polyethylene are formed.
3 Chinese patents (application number 93103399) rubber product protective agent, a kind of Wax-for preventing rubber is characterized in that, it is made up of brazil wax, dispersion agent, emulsifying agent, tinting material, permeate agent, thinner.
4US5296125 Wax-for preventing rubber: paraffin, Microcrystalline Wax.The isoparaffin content of carbon 30-60 is the 16-30% of alkane total amount.
5US4877465 Wax-for preventing rubber: paraffin, Microcrystalline Wax.Content in the isoparaffin should reach 75% at least, and wherein the normal paraffin content of carbon 21-26 is 5-25%, and the normal paraffin content of carbon 36-51 is 20-45%.
6US5242091 air curing cartridge sealing agent: paraffin, Microcrystalline Wax, high viscosity polyisobutene, high viscosity polybutene.
7J05125823 ceramic tile caulking joint hot melt adhesive: natural carnauba wax, paraffin, Microcrystalline Wax, polyethylene wax, Poly Propylene Wax, ammonification wax
8J05025460 decorates and to use mildew resistant sealant: thermoplastic resin: A. polymkeric substance (a. crystalline acrylic resin or/and through sour modification, b. segmented copolymer, c. ethene-(methyl) acrylate copolymer).B. carboxylic compound: rosin ester.C. natural wax (as paraffin, Microcrystalline Wax, polyethylene wax, Poly Propylene Wax, synthetic wax is as amino wax, ester type waxes, polyester wax for carnauba wax, petroleum wax)
9US5063271 is used for the hot melt wax composition of paper etc.: paraffin wax fully refined, the heavy middle distillate wax of recrystallization, Microcrystalline Wax, EVA multipolymer, polypropylene.
10US4772650 sealant composition: the content of wax, polystyrene, rosin and ethylene copolymer.(a) wax is fusing point 44-72 ℃ paraffin, and fusing point is lower than 85 ℃ Microcrystalline Wax; (b) polystyrene, poly alpha methylstyrene, Vinyl toluene/α-Jia Jibenyixigongjuwu; (c) rosin or derivatives thereof; (d) ethylene-acrylic acid copolymer, ethylene-vinyl acetate copolymer or ethylene-acrylate copolymer
11US4684554 container internal layer sealing: consist of the cardboard wax coating, polystyrene resin and ethylene copolymer.Wax is paraffin, Microcrystalline Wax; The polystyrene or derivatives thereof, the rosin or derivatives thereof.Ethylene copolymer is an ethylene-acrylic acid copolymer, ethylene-vinyl acetate copolymer, ethylene-methyl acrylate multipolymer or ethene-vinyl acetate-methacrylic ester terpolymer.
The surrogate of 12US3284279 wax: crystalline polyethylene, unformed Atactic Polypropylene, the petroleum wax of paraffin distillate.Poly number-average molecular weight is 2,000-40, and 000, polyacrylic number-average molecular weight is 2,000-100,000, paraffin melting point is 120-200F.Be used to roll or apply the high-density fiber thin slice, parchment, glassine, or regenerated cellulose.
13CA-776181 is used for the plastics composite of milk preparation container and similar article: petroleum wax contains paraffin and Microcrystalline Wax, solid polyethylene, isotactic polypropylene, solid polyterpene resin.
14DE1250255 is used for the Wax composition of coating or conceived paperboard: fusing point is at the paraffin of 120-180F, and fusing point is at the Microcrystalline Wax of 160-180F, and molecular weight is at the polyolefine of 1500-25000, molecular weight 800-2,000 petrolatum or styrene polymer or multipolymer
15 Chinese patents (application number 88102331) traditional Chinese medicine pill packing wax shell is formed, a kind ofly form by paraffin, beeswax, ceresine, Vaseline, low molecular polyethylene, be used to pack the wax shell of traditional Chinese medicine pill, it is characterized in that: adopting the manual wax method of hanging when carrying out the honeyed bolus packing, the wax shell is by 60-80% paraffin, and 1-10%EVA resin (or EEA resin), 0-6% polyvinyl resin, 15-20% rosin, 3-5% Viscotrol C and 0-5% low molecular polyethylene are formed.
Technology wax and its production and application in 16 Chinese patents (application number 91104019), a kind of craft candle composition is characterized in that said composition comprises (in parts by weight) component title, weight content: paraffin, 2000～3000 parts; Polyethylene wax, 1～5 part; The plastics end, 0.1～10 part; Stearic acid, 0.5～25 part; Pigment, consumption is decided as required.
17 Chinese patents (application number 92108156) dampproof agent for paper products, a kind of dampproof agent for paper products is characterized in that: with low molecular polyethylene and paraffin is main raw material, and sodium hydroxide, stearic acid, rosin, water are mixed the body of heating and stirring into.
18 Chinese patents (application number 95110282) are produced the processing method of series high melting point paraffin, the present invention relates to a kind of processing method of producing series high melting point paraffin, are that the method by upgrading realizes.The present invention is to be raw material with No. 54, No. 56, No. 58 hydrogenation food-grade paraffin wax, with the high-pressure polyethylene is host, with polypropylene, ethene and vinyl acetate copolymer is that assistant agent is made composite additive, after heating up, stirring, under temperature constant state, mix through static mixer, be cooled to below 100 ℃, can produce 66-109 ℃ series high melting point paraffin product.
Chinese patent (application number 91111953) rubber protecting agent, a kind of rubber protecting agent is characterized in that, it is by the hydrogenation Microcrystalline Wax, industrial paraffin, new LDPE (film grade), purification ceresine and oxidation inhibitor are formed.Used oxidation inhibitor is 2,6 two-Butylated Hydroxytoluenes.
Chinese patent (application number 01106005) Wax-for preventing rubber, a kind of Wax-for preventing rubber is characterized in that, it is by low melt point paraffin, inspissated wax, Microcrystalline Wax and polyethylene wax are formed.Structure alkane content is between 35-70%, wherein carbon number accounts for the 0.5-3% of alkane total amount less than 27 the alkane of structure, carbon number between 27-35% structure alkane account for the 2-10% of alkane total amount, the structure alkane of carbon number between 36-45% accounts for the 5-25% of alkane total amount, and carbon number accounts for the 20-45% of alkane total amount greater than 45 the alkane of structure.
US5296125 Wax-for preventing rubber: paraffin, Microcrystalline Wax.The isoparaffin content of carbon 30-60 is the 16-30% of alkane total amount.
US4877465 Wax-for preventing rubber: paraffin, Microcrystalline Wax.Content in the normal paraffin should reach 75% at least; wherein the normal paraffin content of carbon 21-26 is 5-25%, and that to be 20-45% be used to protect the elastomerics that contains two keys with auxiliary protection to avoid the infringement of ozone, weather, daylight in paraffin to the normal paraffin content of carbon 36-51 is early well known.This is because most of rubber molecule structures all are undersaturated, destroys original molecular structure with airborne active atomic generation chemical reaction easily.After adding protection wax in the rubber, under the condition of high temperature in sulfidation, wax all is dissolved in the sizing material, but after the cross-linked rubber cooling, has just formed supersaturation wax solution.Owing to exist concentration gradient between cross-linked rubber inside and surface, the wax molecule continuously to surface transport, forms one deck physical protection film at rubber surface.The characteristics of this tunic are to exist minimum thickness on the one hand, to guarantee that rubber surface is had enough protective capacities; Can not surpass a certain thickness again on the other hand, to prevent the rubber surface dirt.And have the airtight structure of homogeneous, have certain elasticity, the surface that is adhered to rubber item is not peelable.
Paraffin is during as rubber antioxidant, its move to cere that the rubber surface bloom forms crystallize into loose, that have hole, with the less fragility cere of sticking power of rubber, this cere comes off from rubber surface easily in the form of sheets, thereby ozone penetrates the two keys of this cere and rubber molecule easily and reacts and the ageing of rubber phenomenon takes place.Contain higher isoparaffin of more relative molecular mass and the naphthenic hydrocarbon that has long side chain in the Microcrystalline Wax molecule, its fusing point height, good toughness, crystallization is tiny, fine and close, viscosity is big, when therefore using Microcrystalline Wax as rubber antioxidant, its speed of moving to rubber surface is slower, and the cere good toughness of formation, densification, tack is good and difficult drop-off.But because of the Microcrystalline Wax travelling speed slower, so form the time of cere long, cere is thinner.If paraffin mixes (being that normal paraffin and isoparaffin are mixed in proportion) by a certain percentage with Microcrystalline Wax, the crystallization meeting forms unbodied, fine and close, thicker cere, can effectively prevent penetrating of ozone, thereby reaches the purpose of favorable protection ozone.
Summary of the invention
The object of the present invention is to provide a kind of high performance Wax-for preventing rubber; it can be applied in natural rubber and the synthetic rubber; and can form the fine and close cere of one deck at rubber surface rapidly; can be in the wide temperature range permanent protection effect that plays prevents that effectively rubber item is influenced by atmospheric ambient factors and aging cracking takes place.
The present invention relates to a kind of Wax-for preventing rubber, it is characterized in that it is to be mixed with the crystallite wax phase by the paraffin that extracts in the crude oil of Kelamayi, Xinjiang to add polyethylene wax and oxidation inhibitor again and make.Isoparaffin content reaches between the 40-70% in the Wax-for preventing rubber described in the invention.Wherein carbon number accounts for the 10-20% of alkane total amount at the isoparaffin content of 27-35, and carbon number accounts for the 10-30% of alkane total amount at the isoparaffin content of 36-45, and carbon number accounts for the 25-50% of alkane total amount greater than 45 isoparaffin content.
Basic comprising of the present invention:
Mainly form by the paraffin and the Microcrystalline Wax that extract in the crude oil of Kelamayi, Xinjiang;
A adds polyethylene wax
B adds oxidation inhibitor
The difference of the present invention and prior art:
Isoparaffin content reaches between the 40-70% in the Wax-for preventing rubber described in the invention.Wherein carbon number accounts for the 10-20% of alkane total amount at the isoparaffin content of 27-35, and carbon number accounts for the 10-30% of alkane total amount at the isoparaffin content of 36-45, and carbon number accounts for the 25-50% of alkane total amount greater than 45 isoparaffin content.
The oxidation inhibitor that adds in the Wax-for preventing rubber described in the invention is N-sec.-propyl-N-phenyl phenylenediamine, dimethyl phthalate, 2,6-ditertbutylparacresol.
Characteristics of the present invention:
Wax-for preventing rubber provided by the invention, it is to be mixed with the crystallite wax phase by the paraffin that extracts in the crude oil of Kelamayi, Xinjiang to add polyethylene wax and oxidation inhibitor again and make.Good anti-flex crack and anti-ozone ageing performance are arranged, and especially anti-flex crack performance is better than the high-grade rubber protection wax of Compaynie Francaise des Petroles.
Described paraffin, fusing point are 40-70 ℃.
Described Microcrystalline Wax, fusing point are 70-90 ℃.
In the described preventing rubber Wax composition, add polyethylene wax, molecular weight can be between 1000-20000.
In the described preventing rubber Wax composition, add N-sec.-propyl-N-phenyl phenylenediamine, dimethyl phthalate, 2,6-ditertbutylparacresol.
The dosage of described paraffin is 20-70%, and preferred addition is 30-50%.
The dosage of described Microcrystalline Wax is 30-80%, and preferred addition is 40-60%.
The dosage of described polyethylene wax is 0-20%, and preferred addition is 5-10%.
The dosage of described this basic phenylenediamine of N-propyl group-N-is 0-15%, and preferred addition is 0.5-10%.
The dosage of described dimethyl phthalate is 0-15%, and preferred addition is 0.5-12%.
Dosage described 2, the 6-ditertbutylparacresol is 0-20%, and preferred addition is 0.5-15%.
Described isoparaffin content reaches between the 40-70%.
The isoparaffin content of described carbon number little 27 accounts for the 1-3.5% of alkane total amount.
Described carbon number accounts for the 10-20% of alkane total amount at the isoparaffin content of 27-35.
Described carbon number accounts for the 10-30% of alkane total amount at the isoparaffin content of 36-45.
Described carbon number accounts for the 25-50% of alkane total amount greater than 45 isoparaffin content.
Wax-for preventing rubber of the present invention is to be mixed with the crystallite wax phase by the paraffin that extracts in the crude oil of Kelamayi, Xinjiang to add polyethylene wax and oxidation inhibitor again and make.Wherein paraffin accounts for 20-60%, and Microcrystalline Wax accounts for 40-80%, and polyethylene wax accounts for 5-10%, and oxidation inhibitor accounts for 1-10%.
Used paraffin is 52-60 paraffin, and oleaginousness is less than 1.5%.
Used Microcrystalline Wax is the 70-80 Microcrystalline Wax, and oleaginousness is less than 3.5%.
Used polyethylene wax molecular weight is between the 1000-20000.
The index of the Wax-for preventing rubber that the present invention makes is as follows:
Melt drop temperature, ℃ 60～68
Oleaginousness, % 0.5-3.5
Kinematic viscosity (25 ℃), mm
2/ s 5～7
Ash content, % is not more than 0.1
The main crystallite of microscopic examination
Refractive index 1.428-1.45
The preparation method of product of the present invention:
By proportioning weighing paraffin, Microcrystalline Wax, polyethylene wax and oxidation inhibitor.Load weighted polyethylene wax and Microcrystalline Wax are joined in the reactor, slowly be heated to 130-140 ℃, start agitator after the thawing, stirred 15-25 minute, add industrial paraffin then, mixed 20-30 minute, add oxidation inhibitor at last, stirred 40-50 minute.Through filter, impurity screening, cooling forming is promptly made product of the present invention again.
Embodiment
Embodiment 1
Paraffin (No. 56) 22%
Microcrystalline Wax (No. 70) 69%
Polyethylene wax 5%
N-propyl group-N-phenyl phenylenediamine 1%
Dimethyl phthalate 0.5%
2, the 6-ditertbutylparacresol 0.5%
Press embodiment 1 proportioning weighing paraffin, Microcrystalline Wax, polyethylene wax and oxidation inhibitor.Polyethylene wax with load weighted 5% and 69% 70
#Microcrystalline Wax joins in the reactor, slowly is heated to 130-145 ℃, starts agitator after the thawing, stirs 15-25 minute, add then 22% 56
#Paraffin mixed 20-30 minute, add at last N-propyl group-N-phenyl phenylenediamine of 1%, 0.5% dimethyl phthalate 0.5% and 0.5% 2,6-ditertbutylparacresol 0.5%, stirred 40-60 minute.Through filter, impurity screening, cooling forming is promptly made product of the present invention again.
Embodiment 2
Paraffin (No. 54) 25%
Microcrystalline Wax (No. 75) 68%
Polyethylene wax 6.5%
2, the 6-ditertbutylparacresol 0.5%
Press embodiment 2 proportioning weighing paraffin, Microcrystalline Wax, polyethylene wax and oxidation inhibitor.Polyethylene wax with load weighted 6.5% and 68% 75
#Microcrystalline Wax joins in the reactor, slowly is heated to 130-150 ℃, starts agitator after the thawing, stirs 20-25 minute, add then 25% 54
#Paraffin mixed 20-30 minute, add at last 0.5% 2,6-ditertbutylparacresol 0.5%, stirred 40-50 minute.Through filter, impurity screening, cooling forming is promptly made product of the present invention again.
Embodiment 3
Paraffin (No. 58) 31%
Microcrystalline Wax (No. 75) 60%
Polyethylene wax 8.5%
Dimethyl phthalate 0.5%
Press embodiment 3 proportioning weighing paraffin, Microcrystalline Wax, polyethylene wax and oxidation inhibitor.Polyethylene wax with load weighted 7% and 60% 75
#Microcrystalline Wax joins in the reactor, slowly is heated to 130-140 ℃, starts agitator after the thawing, stirs 15-25 minute, add then 31% 58
#Paraffin mixed 20-35 minute, added 0.5% dimethyl phthalate at last, stirred 40-55 minute.Through filter, impurity screening, cooling forming is promptly made product of the present invention again.
Embodiment 4
Paraffin (No. 60) 31%
Microcrystalline Wax (No. 75) 68%
Polyethylene wax 8%
N-propyl group-N-phenyl phenylenediamine 0.5%
2, the 6-ditertbutylparacresol 0.5%
Press example 4 proportioning weighing paraffin, Microcrystalline Wax, polyethylene wax and oxidation inhibitor.With 75 of load weighted 8% polyethylene wax and 68%
#Microcrystalline Wax joins in the reactor, slowly is heated to 130-140 ℃, starts agitator after the thawing, stirs 15-25 minute, add then 31% 60
#Paraffin mixed 20-30 minute, add at last 0.5%N-propyl group-N-phenyl phenylenediamine 0.5% and 0.5% 2, the 6-ditertbutylparacresol, stirred 50-60 minute.Through filter, impurity screening, cooling forming is promptly made product of the present invention again.
Embodiment 5
Paraffin (No. 52) 38%
Microcrystalline Wax (No. 80) 50%
Polyethylene wax 9%
N-propyl group-N-phenyl phenylenediamine 0.5%
Dimethyl phthalate 0.5%
2, the 6-ditertbutylparacresol 1%
Press example 5 proportioning weighing paraffin, Microcrystalline Wax, polyethylene wax and oxidation inhibitor.With 80 of load weighted 9% polyethylene wax and 50%
#Microcrystalline Wax joins in the reactor, slowly is heated to 140-150 ℃, starts agitator after the thawing, stirs 15-25 minute, add then 38% 52
#Paraffin mixed 20-30 minute, add at last N-propyl group-N-phenyl phenylenediamine of 0.5%, 0.5% dimethyl phthalate 0.5% and 1% 2,6-ditertbutylparacresol 1%, stirred 40-50 minute.Through filter, impurity screening, cooling forming is promptly made product of the present invention again.
Product of the present invention can be verified by the test colloid is carried out every comparison test the physicals influence and the protection effect thereof of rubber item:
Table 2 test colloid flavoring (by weight)
| Natural rubber | 70 |
| Cis-1,4-polybutadiene rubber | 30 |
| Zinc oxide | 5 |
| Lipid acid | 1 |
| Titanium dioxide | 5 |
| Sulfur | 1.5 |
| Accelerant CZ | 1 |
| Altax | 1 |
| Antioxidant 264 | 0 |
| White carbon black T-S3 | 20 |
| Lime carbonate | 65 |
| Spindle oil | 3 |
| Polyoxyethylene glycol | 0.5 |
| Protection wax | 2 |
| Add up to | 205 |
The contrast of table 3 test colloid physicals
| Project | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Certain rubber plant's wax | B-10 (France) |
| Hardness | Shao A | 46 | 49 | 52 | 50 | 51 | 50 | 49 |
| Tensile strength at yield | MPa | 9.3 | 9.3 | 9.6 | 10.1 | 9.8 | 7.3 | 7.9 |
| Elongation | ％ | 800 | 748 | 744 | 768 | 772 | 796 | 768 |
| Tension set | ％ | 44 | 40 | 38 | 40 | 40 | 44 | 42 |
As can be seen from Table 3, use embodiment 1,2,3,4, the colloid of 5, five kinds of Wax-for preventing rubbers and use the gel phase ratio of other wax class, their every physical indexs all show better performance.
Anti-flex crack of table 4 and anti-ozone ageing test
| Numbering | Flex crack (subduing number of times) | Ozone ageing (breach time min) |
| Embodiment 1 | 70000 | 45 |
| Embodiment 2 | 75000 | 120 |
| Embodiment 3 | 60000 | 90 |
| Embodiment 4 | 45000 | 90 |
| Embodiment 5 | 55000 | 60 |
| B-10 (France) | 45000 | 40 |
| Certain rubber plant's wax | 40000 | 60 |
As can be seen from Table 4, use embodiment 1,2,3,4, the anti-flex crack of 5 five kinds of Wax-for preventing rubbers and anti-ozone ageing performance are better than other wax class.
Claims (8)
1, a kind of Wax-for preventing rubber is characterized in that: by the fusing point that extracts in the crude oil of Kelamayi, Xinjiang is that 40～70 ℃ of paraffin are that 70～90 ℃ of crystallite wax phases mix with fusing point, adds polyethylene wax and oxidation inhibitor again and makes;
The polyethylene wax that is added, molecular weight is between 1000～20000;
The oxidation inhibitor that is added is N-sec.-propyl-N-phenyl phenylenediamine, dimethyl phthalate, 2,6 ditertiary butyl p cresol, and addition is 0-20%;
The dosage of paraffin is 20-70%;
The dosage of Microcrystalline Wax is 30-80%;
The dosage of polyethylene wax is 0-20%.
2 according to the described Wax-for preventing rubber of claim 1, it is characterized in that, used paraffin, Microcrystalline Wax extract from the crude oil of Kelamayi, Xinjiang.
3 according to the described Wax-for preventing rubber of claim 1, it is characterized in that: the dosage of paraffin is 20-70%, and preferred addition is 30-50%.
4 according to the described Wax-for preventing rubber of claim 1, it is characterized in that: the dosage of Microcrystalline Wax is 30-80%, and preferred addition is 40-60%.
5 according to the described Wax-for preventing rubber of claim 4, it is characterized in that: the dosage of polyethylene wax is 0-20%, and preferred addition is 5-10%.
6 according to the described Wax-for preventing rubber of claim 1, it is characterized in that: the dosage of oxidation inhibitor N-sec.-propyl-N-phenyl phenylenediamine is 0-15%, and preferred addition is 0.5-10%.The dosage of oxidation inhibitor dimethyl phthalate is 0-15%, and preferred addition is 0.5-12%, and the dosage of oxidation inhibitor 2,6 ditertiary butyl p cresol is 0-20%, and preferred addition is 0.5-15%.
7 according to the described Wax-for preventing rubber of claim 1, and it is characterized in that: isoparaffin content reaches between the 40-70% in this Wax-for preventing rubber.
8 according to the described Wax-for preventing rubber of claim 1, it is characterized in that: carbon number accounts for the 1-3.5% of alkane total amount less than 27 isoparaffin content, carbon number accounts for the 10-20% of alkane total amount at the isoparaffin content of 27-35, carbon number accounts for the 10-30% of alkane total amount at the isoparaffin content of 36-45, and carbon number accounts for the 25-50% of alkane total amount greater than 45 isoparaffin content.
Priority Applications (1)
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| CNB2004100808039A CN1331946C (en) | 2004-10-12 | 2004-10-12 | Wax-for preventing rubber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100808039A CN1331946C (en) | 2004-10-12 | 2004-10-12 | Wax-for preventing rubber |
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| CN1331946C CN1331946C (en) | 2007-08-15 |
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