CN1239110A - Process for modifying butadiene-styrene rubber with aliphatic polycarbonate - Google Patents
Process for modifying butadiene-styrene rubber with aliphatic polycarbonate Download PDFInfo
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- CN1239110A CN1239110A CN 99116255 CN99116255A CN1239110A CN 1239110 A CN1239110 A CN 1239110A CN 99116255 CN99116255 CN 99116255 CN 99116255 A CN99116255 A CN 99116255A CN 1239110 A CN1239110 A CN 1239110A
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- aliphatic polycarbonate
- modifying
- styrene
- agent
- peroxide
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- 125000001931 aliphatic group Chemical group 0.000 title claims abstract description 18
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 18
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 14
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 230000001737 promoting effect Effects 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 3
- 229960002447 thiram Drugs 0.000 claims description 3
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 claims description 2
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 claims description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims description 2
- LSEGDMYKXHVBGV-UHFFFAOYSA-N 1-butylperoxybutane;1,1,3-trimethylcyclohexane Chemical group CC1CCCC(C)(C)C1.CCCCOOCCCC LSEGDMYKXHVBGV-UHFFFAOYSA-N 0.000 claims description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 2
- JFISFZKKYWLPPP-UHFFFAOYSA-N 4-sulfanyl-3h-1,3-benzothiazole-2-thione Chemical compound C1=CC=C2SC(S)=NC2=C1S JFISFZKKYWLPPP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- 150000008065 acid anhydrides Chemical class 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- UPIWXMRIPODGLE-UHFFFAOYSA-N butyl benzenecarboperoxoate Chemical group CCCCOOC(=O)C1=CC=CC=C1 UPIWXMRIPODGLE-UHFFFAOYSA-N 0.000 claims description 2
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical group C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- KMNUDJAXRXUZQS-UHFFFAOYSA-L zinc;n-ethyl-n-phenylcarbamodithioate Chemical compound [Zn+2].CCN(C([S-])=S)C1=CC=CC=C1.CCN(C([S-])=S)C1=CC=CC=C1 KMNUDJAXRXUZQS-UHFFFAOYSA-L 0.000 claims description 2
- 150000002978 peroxides Chemical class 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 239000000806 elastomer Substances 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 229920005990 polystyrene resin Polymers 0.000 abstract 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002174 Styrene-butadiene Substances 0.000 description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical group [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
A process for modifying butadiene-styrene rubber is disclosed, which features use of aliphatic polycarbonate instead of original polystyrene resin. The modified elastomer features high mechanical performance, high tension strength increased by more than 3 times, high ageing resistance to hot air, simple process and use of CO2 in atmosphere to relax environmental pollution.
Description
The invention belongs to the styrene-butadiene rubber(SBR) modification.
General pure styrene-butadiene rubber(SBR) mechanical property is relatively poor, and effectively reinforcing filler is a carbon black, because color is darker, has limited the purposes of goods.Generally can add silicon-dioxide, potter's clay etc. in order to make light goods, but reinforcing effect is little, adding too much silicon-dioxide and potter's clay can influence physical properties of articles again.Once the someone adopted other polymkeric substance and styrene-butadiene rubber(SBR) and used its reinforcement, for example use staple fiber reinforcement SBR (D.K.Setua, " K.G.K. ", 1984, Vol37), the tensile strength of paralled system improves, but undesirable, and hardness is big, elongation low (30%); With PE modified SBR (Zhu Yujun etc., " specialty elastomer goods ", 1985, Vol6), the paralled system tensile strength improves, but gained and big with the elastomerics tension set, elongation at break is lower, and the processing temperature height, complex process.Adopt high styrene resin modification SBR (assorted Gottlob Walz etc. in addition, " also using of rubber and plastics and synthetic resins ", petroleum industry press, 1976) gained mechanics of elastic bodies performance still can, but also with elastomerics hardness height, tension set is big, and processing temperature is also higher, and high styrene resin costs an arm and a leg, and cost can't reach a standard.
The objective of the invention is to adopt cheap modifying butadiene-styrene rubber with aliphatic polycarbonate.This aliphatic polycarbonate system is synthetic by carbon dioxide copolymerization.Use aliphatic polycarbonate can also improve elastomeric physical and mechanical properties and heat aging property.
The present invention realizes by following step: add 1～100 part of aliphatic polycarbonate in 100 parts of (weight) styrene-butadiene rubber(SBR), 0.2～50 part of main linking agent, 0.1～50 part of promotor, 0.1～20 part of 0.1～80 part of auxiliary crosslinking agent and promoting agent were 90 ℃～200 ℃ following press vulcanizations 2～200 minutes.Used aliphatic polycarbonate molecular weight is 2000～300000, molecular chain contains the saturated resin of terminal hydroxy group, used main linking agent is sulphur or superoxide, as benzoyl peroxide, the tertiary butyl benzoyl peroxide, dicumyl peroxide, di-tert-butyl peroxide, 1,1-tertiary butyl peroxide-3,3,5 trimethyl-cyclohexanes etc., used promotor is sulfenamide, thiurams, dialkyl dithiocarbamate class, thiazoles and guanidine acclerators, as N cyclohexyl 2 benzothiazole sulfenamide (CZ), dibenzothiazyl disulfide (DM), dimercapto benzothiazole (M), tetramethyl-thiuram disulfide (TMTD), zinc-ethylphenyl dithiocarbamate (PX), vulkacit D (D) etc.Used auxiliary crosslinking agent is acid anhydrides or isocyanates, as Succinic anhydried, and MALEIC ANHYDRIDE, Tetra Hydro Phthalic Anhydride, hexahydrophthalic anhydride, triallyl isocyanates etc., used promoting agent are metal oxide and lipid acid, as zinc oxide and stearic acid.Characteristics of the invention process are directly aliphatic polycarbonate to be added in the styrene-butadiene rubber(SBR), and the course of processing is carried out at normal temperatures, does not need special processing units.Elastomerics forms cross-linked network under linking agent and physical entanglement effect.Crosslinking coagent then by with hydroxyl reaction, further improve the structure of cross-linked network, thereby improve elastomeric mechanical property and resistance toheat.
Styrene-butadiene rubber(SBR) method of modifying provided by the invention not only provides the modified styrene butadiene rubber with excellent heat resisting and mechanical property, and this method of modifying complete processing is simple, the aliphatic polycarbonate that is adopted is synthetic by carbon dioxide copolymerization, and improvement back product cost is close with pure styrene-butadiene rubber(SBR).The widespread use of this aliphatic polycarbonate not only can be opened up new resources, alleviates the short situation of industrial chemicals, and for the content of controlling carbonic acid gas in the atmosphere, alleviates global Greenhouse effect, and preserving the ecological environment is significant.
Embodiment 1
Restrain styrene-butadiene rubber(SBR) (styrene content 23.5%) with 100 and restrain with zinc oxide 3, stearic acid 1 gram, accelerant CZ 1.2 grams, sulphur 1.8 restrains, and puts into the mould press vulcanization, pressure 15MPa, 150 ℃ of temperature, 30 minutes time after mixing with double roll mill.Gained modified elastomer tensile strength 2.2MPa, elongation at break 780%, hardness 40 degree (Shao A).Embodiment 2
100 gram styrene-butadiene rubber(SBR) (styrene content 23.5%) and aliphatic polycarbonate (molecular weight 80000) 10 grams are mixed with double roll mill, 40 ℃～50 ℃ of mixing temperatures, add zinc oxide 3 grams then at 5 minutes time, stearic acid 1 gram, accelerant CZ 1.2 grams, sulphur 1.8 grams, MALEIC ANHYDRIDE 4 grams, put into the mould press vulcanization behind the thorough mixing, pressure 15MPa, 150 ℃ of temperature, 30 minutes time.Gained modified elastomer tensile strength 9.3MPa, elongation at break 1321%, hardness 27 degree (Shao A).Embodiment 3
100 gram styrene-butadiene rubber(SBR) (styrene content 23.5%) and aliphatic polycarbonate (molecular weight 80000) 20 grams are mixed with double roll mill, 40 ℃～50 ℃ of mixing temperatures, add zinc oxide 3 grams then at 5 minutes time, stearic acid 1 gram, accelerant CZ 1.2 grams, sulphur 1.8 grams, MALEIC ANHYDRIDE 4 grams, put into the mould press vulcanization behind the thorough mixing, pressure 15MPa, 150 ℃ of temperature, 30 minutes time.Gained modified elastomer tensile strength 6.5MPa, elongation at break 1432%, hardness 26 degree (Shao A).Embodiment 4
100 gram styrene-butadiene rubber(SBR) (styrene content 23.5%) and aliphatic polycarbonate (molecular weight 80000) 30 grams are mixed with double roll mill, 40 ℃～50 ℃ of mixing temperatures, add zinc oxide 3 grams then at 5 minutes time, stearic acid 1 gram, accelerant CZ 1.2 grams, sulphur 1.8 grams, MALEIC ANHYDRIDE 4 grams, put into the mould press vulcanization behind the thorough mixing, pressure 15MPa, 150 ℃ of temperature, 30 minutes time.Gained modified elastomer tensile strength 6.0MPa, elongation at break 1347%, hardness 25 degree (Shao A).
Claims (6)
1, a kind of method with modifying butadiene-styrene rubber with aliphatic polycarbonate, in styrene-butadiene rubber(SBR), add and become owner of linking agent, promotor, promoting agent, 90 ℃～200 ℃ following press vulcanizations 2～200 minutes, it is characterized in that adding aliphatic polycarbonate in the prescription, peroxide cross-linking agent and acid anhydrides or isocyanates auxiliary crosslinking agent, the concrete prescription composition of representing with weight comprises:
Styrene-butadiene rubber(SBR) 100
Aliphatic polycarbonate 1-100
Main linking agent 0.2-50
Promotor 0.1-50
Auxiliary crosslinking agent 0.1-80
Promoting agent 0.1-20
2,, it is characterized in that described aliphatic polycarbonate is that molecular weight is the saturated resin that 2000～300000 molecular chain contains terminal hydroxy group according to the method for modifying described in the claim 1.
3,, it is characterized in that described main linking agent is a sulphur, benzoyl peroxide, tertiary butyl benzoyl peroxide according to the method for modifying described in the claim 1, dicumyl peroxide, di-tert-butyl peroxide, 1,1-tertiary butyl peroxide-3,3,5 trimethyl-cyclohexanes.
4,, it is characterized in that described promotor is N cyclohexyl 2 benzothiazole sulfenamide, dibenzothiazyl disulfide according to the method for modifying described in the claim 1, the dimercapto benzothiazole, tetramethyl-thiuram disulfide, zinc-ethylphenyl dithiocarbamate, vulkacit D.
5, according to the method for modifying described in the claim 1, it is characterized in that described auxiliary crosslinking agent is a Succinic anhydried, or MALEIC ANHYDRIDE, or Tetra Hydro Phthalic Anhydride, or hexahydrophthalic anhydride, triallyl isocyanate.
6,, it is characterized in that described promoting agent is zinc oxide and stearic acid according to the method for modifying described in the claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116255 CN1239110A (en) | 1999-06-28 | 1999-06-28 | Process for modifying butadiene-styrene rubber with aliphatic polycarbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116255 CN1239110A (en) | 1999-06-28 | 1999-06-28 | Process for modifying butadiene-styrene rubber with aliphatic polycarbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1239110A true CN1239110A (en) | 1999-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99116255 Pending CN1239110A (en) | 1999-06-28 | 1999-06-28 | Process for modifying butadiene-styrene rubber with aliphatic polycarbonate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1239110A (en) |
-
1999
- 1999-06-28 CN CN 99116255 patent/CN1239110A/en active Pending
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