Summary of the invention
The lightweight modified rubber that the purpose of this invention is to provide a kind of lightweight, the comfortableization prescription and the complete processing thereof of big bottom material that foam.
The present invention adopt cis-butadiene cement, butylbenzene micelle, solution polymerized butadiene styrene rubber, nitrile rubber, silicon-dioxide, coupling agent, zinc oxide, rosin, promoting agent, Triple Pressed Stearic Acid, protective agent, Microcrystalline Wax, anti-acid regurgitation agent by prepare burden first, banburying is rolled into material piece first through mill after mediating; Material piece leaves standstill the back and drops into mill first; The batching sulphur (bridging agent), promotor, whipping agent, the coloring agent mixing that add the secondary prescription again are refined into the sizing material sheet; Leave standstill again, stamping-out, sulfuration is shaped into the lightweight modified rubber big bottom material that foams.
Composition of raw materials of the present invention (weight ratio) is:
1, fill a prescription first:
Cis-butadiene cement 23-61%
Butylbenzene micelle 9-16%
Solution polymerized butadiene styrene rubber 5-12%
Nitrile rubber 2-6%
Silica 1 5-30%
Coupling agent (two [3-triethoxyl silane propyl group] tetrasulfide) 1.5-3%
Zinc oxide 2.5-3.5%
Rosin 0.9-2%
Promoting agent (polyoxyethylene glycol) 1.5-2.5%
Triple Pressed Stearic Acid 0.3-0.4%
Protective agent (N-sec.-propyl-N '-diphenyl-para-phenylene diamine) 0.5-0.6%
Microcrystalline Wax 0.3-0.4%
Anti-acid regurgitation agent 0.5-0.6%
2, secondary prescription
Formulated rubber material 94-96% first
Sulphur 0.8-1.2%
Promotor (dibenzyl dithio amino-acid zinc) 0.5-0.9%
Whipping agent (Cellmic C 121) 2.4-3.3%
Coloring agent 0.3-0.6%
Complete processing of the present invention is:
1, batching first: by prescription first get cis-butadiene cement, butylbenzene micelle, solution polymerized butadiene styrene rubber, nitrile rubber, silicon-dioxide, coupling agent, zinc oxide, rosin, promoting agent, Triple Pressed Stearic Acid, protective agent, Microcrystalline Wax, anti-acid regurgitation agent prepare burden first, mixing evenly, process formulated rubber material first.
2, feed intake, banburying: throw into the formulated rubber material first for preparing in the Banbury mixer,, rise the ventilative 20-40 of weight stirring second then with the mixing 6-10 of the pressure of weight 1 ± 0.2Mpa minute; Behind the powder on the cleaning weight, depress the weight banburying again 4-6 minute, open dustproof door cleaning powder; Rising weight all mixes with sizing material by all powder; Depress the weight banburying again 2-3 minute, and rose weight cleaning stirring, depress weight banburying discharging after 2-3 minute again.
3, discharging, open refining: the sizing material that mixer mixing is good drops in the mill and rolls; The slit of adjustment mill is 10 ± 2mm; Prolong to press and beat triangle Bao Sanci, the slit of adjusting mill again be 0.5-1mm draw thin once, mixing the back, to adjust the mill slit be slice behind the 10mm.
4, slice, leave standstill: go out into the material piece first of about specification 400*400*10mm through film-discharging machine (being provided with antisticking device, refrigerating unit), material piece first cooled off, left standstill 24 hours.
5, second batch, refining: material piece is thrown into and is opened refining in the mill first, until the roller that touch and encase mill, presses the secondary prescription again and adds sulphur, promotor, whipping agent, coloring agent, and mixing drawing approaches until fully evenly, processes the sizing material sheet.
6, slice, leave standstill: through film-discharging machine the sizing material sheet is gone out into the thickness of certain regulation, leaves standstill cooling 2 hours after the slice.
7, stamping-out, sulfuration: sizing material sheet stamping-out is good, put into mould matched moulds sulfur foam.Die temperature is at 145-155 ℃, die pressure 120-130 kilogram, curing time 4-7 minute.
8, cooling, arrangement: from mould, take out the good sizing material sheet of sulfur foam, set level naturally cooling, repair deflashing.
9, leave standstill, finalize the design: the sizing material sheet of will cool off, putting in order left standstill 12 hours, got into 90-100 ℃ baking oven again, carried out typing in 35-45 minute, the lightweight modified rubber of promptly producing lightweight, the comfortableization big bottom material that foams.
Main physical performance of the present invention (the gained data detect in national footwear inspection center):
1, hardness: 60-75 C type hardness tester
2, proportion: 0.5-0.9g/cm
3
3, wear-resisting: 80-150mm
3DIN is wear-resisting
4, folding: 50000-70000 time
5, pulling force: 40-75kg/cm
2
6, elongation: 350%-600%
7, tear strength: 28-40kg/cm
8, cold-resistant :-30 ℃ do not rupture
The present invention has light specific gravity, material is economized, and the shoemaking dress is light; Elasticity and snappiness are good, comfort; Raw material is comparatively simple, the characteristics that are easy to reclaim.
Below in conjunction with embodiment the present invention is further specified.
Embodiment
A kind of embodiment of the present invention is: by prescription (weight ratio) first get cis-butadiene cement 54%, butylbenzene micelle 12%, solution polymerized butadiene styrene rubber 6%, nitrile rubber 3%, silica 1 7%, coupling agent (two [3-triethoxyl silane propyl group] tetrasulfide) 1.5%, zinc oxide 2.5%, promoting agent (polyoxyethylene glycol) 1.5%, rosin 0.9%, Triple Pressed Stearic Acid 0.3%, protective agent (N-sec.-propyl-N '-diphenyl-para-phenylene diamine) 0.5%, Microcrystalline Wax 0.3%, anti-acid regurgitation agent 0.5% prepare burden first, mixing evenly, process formulated rubber material first.Throw into the formulated rubber material first for preparing in the Banbury mixer, with the pressure of weight 1 ± 0.2Mpa mixing 6 minutes, rose the weight stirring then ventilative 20 seconds; Behind the powder on the cleaning weight, depress the weight banburying again 4 minutes, open dustproof door cleaning powder; Rise weight and all mix, depressed the weight banburying again 2 minutes, rise weight cleaning stirring with sizing material by all powder; Depress weight banburying discharging after 2 minutes again, open water coolant in the whole banburying process, maintain the temperature at below 130 ℃.Roll in 18 cun mills of sizing material input that mixer mixing is good; The slit of adjustment mill is 10 ± 2mm; Prolong to press and beat triangle Bao Sanci; The slit of adjusting mill again is that 0.5-1mm draws that thin once mixing adjustment mill slit, back is slice behind the 10mm, and whole process mill temperature-stable is at 40 ℃.Go out into the material piece first of about specification 400*400*10mm through film-discharging machine (being provided with antisticking device, refrigerating unit), material piece is first cooled off, left standstill 24 hours.Material piece is thrown into and is opened refining in the mill first; Until the roller that touch and encase mill; Add sulphur 0.8%, promotor (dibenzyl dithio amino-acid zinc) 0.5%, whipping agent (Cellmic C 121) 2.4%, coloring agent 0.3% (by formulated rubber material 96% first) by secondary prescription (weight ratio) again; Mixing drawing approaches until fully evenly, processes the sizing material sheet.Through film-discharging machine the sizing material sheet is gone out into the thickness of certain regulation, leave standstill cooling 2 hours after the slice.Sizing material sheet stamping-out is good, put into mould matched moulds sulfur foam.Die temperature is at 145 ℃, die pressure 120 kg, curing time 4 minutes.From mould, take out the good sizing material sheet of sulfur foam, set level naturally cooling, repair deflashing.Cooling, the sizing material sheet put were left standstill 12 hours, get into 95 ℃ baking oven again, carry out finalizing the design in 40 minutes, the lightweight modified rubber of promptly producing lightweight, the comfortableization big bottom material that foams.