CN101280076A - SBR diving material and preparation thereof - Google Patents
SBR diving material and preparation thereof Download PDFInfo
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- CN101280076A CN101280076A CNA2008100711652A CN200810071165A CN101280076A CN 101280076 A CN101280076 A CN 101280076A CN A2008100711652 A CNA2008100711652 A CN A2008100711652A CN 200810071165 A CN200810071165 A CN 200810071165A CN 101280076 A CN101280076 A CN 101280076A
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Abstract
An SBR diving material and the preparation method relate to a preparation method of diving materials; the method is characterized in that based on 100kg of synthetic rubber and on the original formula, 20 to 29kg of EPDM is added, followed by the procedures of internal mixing, open mixing, cooling, and open mixing again, film setting, cold pressing and foam molding. The material has the advantages that EPDM has superior anti-ozone and anti-erosion ability, and the chemical properties of EPDM enable good curing properties of EPDM and the lowest proportion among all the rubbers; besides, EPDM can absorb a plurality of fillers and oils and has little impact on the properties. Therefore, adding EPDM into the raw material can well improve the contractility, flexibility, anti-oxidation and corrosion-resistant capabilities of SBR.
Description
Technical field:
The present invention relates to the preparation method of diving material.
Background technology:
Tartan is widely used in physical fitness, aquatic sports, the activity of suing and labouring waterborne.Tradition SBR diving material main raw material is natural rubber and styrene-butadiene rubber(SBR), form the back after High Temperature High Pressure foams by proportioning with particular matter, shortcomings such as transfer elements such as domestic SBR ubiquity easy firing and dissoluble lead exceed standard, and the property received that contracts is big, and abilities such as elasticity, resistance to oxidation are not enough.Common elastomeric prescription is for being radix with synthetic rubber 100kg, allocate U.S. carclazyte 81～83kg by weight into, expanding material 70～74kg, tenderizer 53～55kg, reinforcing filler 26～26.3kg, processing aid 15～16kg, vulcanizing agent 2～2.5kg, activator 5.2～5.5kg, dispersion agent 3～4kg, whipping agent 6～6.5kg, frothing aid 6～6.5kg.
Synthetic rubber can be used styrene-butadiene rubber(SBR), natural rubber, expanding material is generally used light calcium carbonate, tenderizer general with how family's softening oil, reinforcing filler is generally used black smoke glue AMERIPOL1808, and processing aid is generally used white factice, and vulcanizing agent is generally used Sulfur, activator is generally with zinc oxide or zinc white, dispersion agent is generally used AFLUX-42, and whipping agent is generally used DPT, and frothing aid is generally used cellpaste-101.
With following example existing general making method is described: synthetic rubber (is comprised styrene-butadiene rubber(SBR), natural rubber) 100kg, U.S. carclazyte 82.6kg, light calcium carbonate (expanding material) 73.3kg, Sulfur (vulcanizing agent) 2.2kg, how family's softening oil (tenderizer) 54.4kg, black smoke glue AMERIPOL 1808 (reinforcing filler) 26.1kg, white factice (processing aid) 15.2kg, frothing aid cellpaste-101 6.5kg, whipping agent DPT 6.5kg, zinc oxide or zinc white (activator) 5.4kg, dispersant A FLUX-42 3kg puts into the Banbury mixer banburying successively, control Banbury mixer temperature is 118 ℃, mixes banburying 15min; Discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, closes about refining to 80 degree with mill once more, uses the forcing machine discharging; Thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T at last.Show that after testing the tensile strength of products obtained therefrom is 0.2MPa, elongation at break is that 262%, 200% stress is 0.1Mpa, and tear strength is 0.8Mpa, and apparent density is 145kg/m
3, percent thermal shrinkage (70 ℃, 24hr) be MD:3%, CD:5%, (23 ℃ is 35% 22hr) in compression set.
Above-mentioned several performance index are not ideal enough, influence transfer elements such as easy firing and dissoluble lead and exceed standard, and the property received that contracts is big, abilities such as elasticity, resistance to oxidation.
Summary of the invention:
The objective of the invention is to overcome above-mentioned defective, a kind of SBR diving material and preparation method thereof is provided.
Tartan prescription of the present invention is: with synthetic rubber 100kg is radix, allocate U.S. carclazyte 81～83kg by weight into, expanding material 70～74kg, tenderizer 53～55kg, reinforcing filler 26～26.3kg, processing aid 15～16kg, vulcanizing agent 2～2.5kg, activator 5.2～5.5kg, dispersion agent 3～4kg, whipping agent 6～6.5kg on the basis of frothing aid 6～6.5kg, adds terpolymer EP rubber EPDM20～29kg again.
Preparation method of the present invention is: with synthetic rubber 100kg is radix, allocate U.S. carclazyte 81～83kg by weight into, expanding material 70～74kg, tenderizer 53～55kg, reinforcing filler 26～26.3kg, processing aid 15～16kg, vulcanizing agent 2～2.5kg, activator 5.2～5.5kg, dispersion agent 3～4kg, whipping agent 6～6.5kg, on the basis of frothing aid 6～6.5kg, add terpolymer EP rubber EPDM20～29kg again, put into Banbury mixer banburying 15min, discharging is after refining 10min is opened in mill, park 12hr and cool off fully, close about refining to 80 degree with mill once more, order sheet with the forcing machine discharging and by required specification, thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T promptly plastic at last.
The invention has the advantages that: present method is at the requirements at the higher level to the SBR material such as above shortcoming and domestic sports goods, body-building and water activity articles for use etc., the condition of production and demand in conjunction with this material on the domestic market are analyzed and are investigated, develop under the precondition that guarantees its property and enlarge elastic range, increase the improvement SBR diving material of homogeneity and tear-resistant intensity, resistance to oxidation and the corrosion resistance of its density simultaneously.For obtaining this effect, we find that EPDM has superior anti-ozone and corrosion resistance, its chemical property makes it have good vulcanization characteristics, in all rubber, has minimum proportion, can absorb a large amount of filler and oily and little to properties influence, therefore in raw material, add the receipts that contract that EPDM can improve SBR preferably, elasticity, resistance to oxidation and corrosion resistance.
Embodiment:
Embodiment 1: synthetic rubber (is comprised styrene-butadiene rubber(SBR), natural rubber) 100kg, EPDM20g, U.S. carclazyte 82.6kg, light calcium carbonate (expanding material) 73.3kg, how family's softening oil (tenderizer) 54.4kg, Sulfur (vulcanizing agent) 2.2kg, black smoke glue AMERIPOL 1808 (not strong weighting agent) 26.1kg, white factice (processing aid) 15.2kg, frothing aid cellpaste-101 6.5kg, whipping agent DPT 6.5kg, zinc oxide or zinc white (activator) 5.4kg, dispersant A FLUX-42 3kg puts into the Banbury mixer banburying successively, and control Banbury mixer temperature is 118 ℃, mixes banburying 15min; Discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, closes about refining to 80 degree with mill once more, uses the forcing machine discharging; Thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T at last.Show that after testing the tensile strength of products obtained therefrom is 0.25MPa, elongation at break is that 300%, 200% stress is 0.15Mpa, and tear strength is 1Mpa, and apparent density is 168kg/m
3, percent thermal shrinkage (70 ℃, 24hr) be MD:2.4%, CD:4.2%, (23 ℃ is 24% 22hr) in compression set.
Embodiment 2: synthetic rubber (is comprised styrene-butadiene rubber(SBR), natural rubber) 100kg, EPDM25g, U.S. carclazyte 82.6kg, light calcium carbonate (expanding material) 73.3kg, Sulfur (vulcanizing agent) 2.2kg, how family's softening oil (tenderizer) 54.4kg, black smoke glue AMERIPOL 1808 (reinforcing filler) 26.1kg, white factice (processing aid) 15.2kg, frothing aid cellpaste-101 6.5kg, whipping agent DPT 6.5kg, zinc oxide or zinc white (activator) 5.4kg, dispersant A FLUX-42 3kg puts into the Banbury mixer banburying successively, and control Banbury mixer temperature is 118 ℃, mixes banburying 15min; Discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, closes about refining to 80 degree with mill once more, uses the forcing machine discharging; Thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T at last.Show that after testing the tensile strength of products obtained therefrom is 0.27MPa, elongation at break is that 340%, 200% stress is 0.18Mpa, and tear strength is 1.15Mpa, and apparent density is 180kg/m
3, percent thermal shrinkage (70 ℃, 24hr) be MD:1.96%, CD:4.0%, (23 ℃ is 21% 22hr) in compression set.
Embodiment 3: synthetic rubber (is comprised styrene-butadiene rubber(SBR), natural rubber) 100kg, EPDM26g, U.S. carclazyte 82.6kg, light calcium carbonate (expanding material) 73.3kg, Sulfur (vulcanizing agent) 2.2kg, how family's softening oil (tenderizer) 54.4kg, black smoke glue AMERIPOL 1808 (reinforcing filler) 26.1kg, white factice (processing aid) 15.2kg, frothing aid cellpaste-101 6.5kg, whipping agent DPT 6.5kg, zinc oxide or zinc white (activator) 5.4kg, dispersant A FLUX-42 3kg puts into the Banbury mixer banburying successively, and control Banbury mixer temperature is 118 ℃, mixes banburying 15min; Discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, closes about refining to 80 degree with mill once more, uses the forcing machine discharging; Thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T at last.Show that after testing the tensile strength of products obtained therefrom is 0.3MPa, elongation at break is that 365%, 200% stress is 0.2Mpa, and tear strength is 1.2Mpa, and apparent density is 184kg/m
3, percent thermal shrinkage (70 ℃, 24hr) be MD:1.83%, CD:3.9%, (23 ℃ is 20% 22hr) in compression set.
Embodiment 4: synthetic rubber (is comprised styrene-butadiene rubber(SBR), natural rubber) 100kg, EPDM28g, U.S. carclazyte 82.6kg, light calcium carbonate (expanding material) 73.3kg, Sulfur (vulcanizing agent) 2.2kg, how family's softening oil (tenderizer) 54.4kg, black smoke glue AMERIPOL 1808 (reinforcing filler) 26.1kg, white factice (processing aid) 15.2kg, frothing aid cellpaste-101 6.5kg, whipping agent DPT 6.5kg, zinc oxide or zinc white (activator) 5.4kg, dispersant A FLUX-42 3kg puts into the Banbury mixer banburying successively, and control Banbury mixer temperature is 118 ℃, mixes banburying 15min; Discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, closes about refining to 80 degree with mill once more, uses the forcing machine discharging; Thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T at last.The tensile strength of products obtained therefrom is 0.26MPa, and elongation at break is that 337%, 200% stress is 0.17Mpa, and tear strength is 1.1Mpa, and apparent density is 179kg/m
3, percent thermal shrinkage (70 ℃, 24hr) be MD:2.03%, CD:4.1%, (23 ℃ is 22% 22hr) in compression set.
Embodiment 5: synthetic rubber (is comprised styrene-butadiene rubber(SBR), natural rubber) 100kg, EPDM29g, U.S. carclazyte 82.6kg, light calcium carbonate (expanding material) 73.3kg, Sulfur (vulcanizing agent) 2.2kg, how family's softening oil (tenderizer) 54.4kg, black smoke glue AMERIPOL 1808 (reinforcing filler) 26.1kg, white factice (processing aid) 15.2kg, frothing aid cellpaste-101 6.5kg, whipping agent DPT 6.5kg, zinc oxide or zinc white (activator) 5.4kg, dispersant A FLUX-42 3kg puts into the Banbury mixer banburying successively, and control Banbury mixer temperature is 118 ℃, mixes banburying 15min; Discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, closes about refining to 80 degree with mill once more, uses the forcing machine discharging; Thereafter use the 2000T oil press, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T at last.The tensile strength of products obtained therefrom is 0.25MPa, and elongation at break is that 328%, 200% stress is 0.16Mpa, and tear strength is 1.08Mpa, and apparent density is 170kg/m
3, percent thermal shrinkage (70 ℃, 24hr) be MD:2.1%, CD:4.24%, (23 ℃ is 22.5% 22hr) in compression set.
After we add EPDM as can be seen in the data of above-mentioned example, the tensile strength of product, elongation at break, stress, tear strength, density, percent thermal shrinkage, compression set rate all improve significantly, superiority is the most obvious when added EPDM in the 100kg synthetic rubber is in 25kg～28kg scope, proves that after tested 26kg is the optimal selection of scheme.We can reach a conclusion by the Changing Pattern of test data, and EPDM can improve shrinkability, rebound resilience, the oxidation resistance of traditional SBR really, and behind the product beta test, through customers' responsiveness, density is even, and it is compound to be beneficial to cutting, and corrosion resistance is strong.
Claims (6)
1, a kind of SBR diving material comprises that synthetic rubber 100kg is a radix, allocates U.S. carclazyte 81～83kg by weight into, expanding material 70～74kg, tenderizer 53～55kg, reinforcing filler 26～26.3kg, processing aid 15～16kg, vulcanizing agent 2～2.5kg, activator 5.2～5.5kg, dispersion agent 3～4kg, whipping agent 6～6.5kg, frothing aid 6～6.5kg is characterized in that adding terpolymer EP rubber EPDM20～29kg again.
2, a kind of SBR diving material according to claim 1 is characterized in that the terpolymer EP rubber EPDM that adds again is 25～28kg.
3, a kind of SBR diving material according to claim 1 is characterized in that the terpolymer EP rubber EPDM that adds again is 26kg.
4, a kind of SBR diving material preparation method, comprise that synthetic rubber 100kg is a radix, allocate U.S. carclazyte 81～83kg by weight into, expanding material 70～74kg, tenderizer 53～55kg, reinforcing filler 26～26.3kg, processing aid 15～16kg, vulcanizing agent 2～2.5kg, activator 5.2～5.5kg, dispersion agent 3～4kg, whipping agent 6～6.5kg, frothing aid 6～6.5kg, it is characterized in that adding again terpolymer EP rubber EPDM20～29kg, put into Banbury mixer banburying 15min, discharging is parked 12hr and is cooled off fully after refining 10min is opened in mill, close about refining to 80 degree with mill once more, order sheet with the forcing machine discharging and by required specification, use the 2000T oil press thereafter, air pressure is that 5 kilograms * 30min colds pressing; Use the oil press second time of foaming 30min of two sections 600T promptly plastic at last.
5, a kind of SBR diving material preparation method according to claim 4 is characterized in that the terpolymer EP rubber EPDM that adds again is 25～28kg.
6, a kind of SBR diving material preparation method according to claim 4 is characterized in that the terpolymer EP rubber EPDM that adds again is 26kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100711652A CN101280076A (en) | 2008-06-04 | 2008-06-04 | SBR diving material and preparation thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100711652A CN101280076A (en) | 2008-06-04 | 2008-06-04 | SBR diving material and preparation thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002174A (en) * | 2010-11-17 | 2011-04-06 | 至和(福建）科技有限公司 | Styrene butadiene rubber (SBR) sponge composite material and preparation method thereof |
| CN102093610A (en) * | 2010-12-23 | 2011-06-15 | 南阳天一密封股份有限公司 | Shock absorbing sealing element of explosion-proof motor |
| CN105504409A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Rubber material used as heat-resistant and ozone-resistant styrene-butadiene rubber inflating valve and preparation method of rubber material |
-
2008
- 2008-06-04 CN CNA2008100711652A patent/CN101280076A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002174A (en) * | 2010-11-17 | 2011-04-06 | 至和(福建）科技有限公司 | Styrene butadiene rubber (SBR) sponge composite material and preparation method thereof |
| CN102093610A (en) * | 2010-12-23 | 2011-06-15 | 南阳天一密封股份有限公司 | Shock absorbing sealing element of explosion-proof motor |
| CN105504409A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Rubber material used as heat-resistant and ozone-resistant styrene-butadiene rubber inflating valve and preparation method of rubber material |
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Open date: 20081008 |