Summary of the invention
The present invention has overcome that rim strip softness that existing carbon black causes descends and problem such as the dust of worker's Working environment is big, and a kind of new tire flap sizing material is provided.This sizing material has added 60 purpose rubber powders in prescription; Removed carbon black; And add tackifier and flowing agent etc., and make it under the prerequisite that does not reduce original rerum natura, can not only keep the pliability of rim strip finished product for a long time; Improved the handling property of rim strip finished product, and production cost obtains reduction to a certain degree.The more important thing is the sanitary condition of production scene is greatly improved.
Technical scheme of the present invention is: a kind of tire flap sizing material; It is characterized in that; Its component and weight part thereof are tree elastomer 10~20, styrene-butadiene rubber(SBR) 10~30, shoddy 40~70, rubber powder (60 order) 9~12, light calcium carbonate 3~5, zinc oxide 2~3, Triple Pressed Stearic Acid 1.0~1.5, sulphur 1.0~1.5, anti-aging agent 1.0~2.0, promotor 0.5~0.8, tenderizer 3~5, tackifier 1~2, flow dispersion agent 0.5~1.0.
Said anti-aging agent is anti-aging agent RD, 4010NA or 4020 etc.; Said promotor is rubber accelerator M, DM, CZ, SP-C, TMTD, PZ etc.; Said tenderizer be molecular weight 300-600 hydro carbons or arene (like machine oil, paraffin oils, aromatic hydrocarbon oil, etc.); Said tackifier are octyl group phenolic tackifying resins (203-resin), p tert butylphenol formaldehyde resin or tertiary butyl phenol aldehyde tackifying resin; Said flow dispersion agent is conventional rubber flow dispersion agent HM-24 etc.
Said rubber powder is the Powdered elastomeric materials of 60 purposes for handling the granularity that obtains by junked tire through grinding and processing.The mixture of said shoddy for forming through pulverizing, regeneration (desulfurization) and refining by junked tire.
Preparing method: use rubber internal mixer; Order of addition(of ingredients) is: tree elastomer, styrene-butadiene rubber(SBR), shoddy and rubber powder drop into Banbury mixer and pressed bolt 2~3 minutes; Add light calcium carbonate, zinc oxide, Triple Pressed Stearic Acid, anti-aging agent, tackifier and flow dispersion agent then and pressed bolt 3~5 minutes; Add tenderizer then, discharge, extrude down sheet and form master batch; Master batch adds sulphur, promotor mixing at last, and following sheet is cooled to the making that room temperature is accomplished rim strip glue.
The invention has the beneficial effects as follows:
1, because rubber powder itself is a kind of sooty glue that contains; It can not only play sooty reinforcement, filling effect, and add-on can not cause the finished product changes in hardness bigger when strengthening; Thereby the pliability that has kept finished product, the while has also increased the stability of finished product hardness.
2, use 60 order rubber powders that the sanitary condition of the production scene of mixing process is greatly improved, everywhere unlike the carbon black that equally can find in the past to fly, the also bad cleaning of health of equipment simultaneously.Also guaranteeing that in varying degrees worker's Working environment improves, and has avoided the occupational illness because of using carbon black to cause.
3, because the price of 60 order rubber powders almost is about half of carbon black price; And the usage quantity of rubber powder be the carbon black usage quantity 1-2 doubly between; The consumption of other material of being adjusted in the prescription is fewer again, therefore makes whole formulation cost obtain decline to a certain degree.
Embodiment
Embodiment 1 (use rubber powder)
Proportioning (kilogram): tree elastomer 12, styrene-butadiene rubber(SBR) 16, shoddy 65, rubber powder (60 order) 12, light calcium carbonate 5, zinc oxide 2.5, Triple Pressed Stearic Acid 1.2, sulphur 1.2, anti-aging agent RD 1.4, promotor (rubber accelerator M) 0.6, tenderizer (aromatic hydrocarbon oil) 4, tackifier (203-resin) 1.5, flow dispersion agent (China steps chemical industry HM-24) 0.5.
Preparing method: use rubber internal mixer; Order of addition(of ingredients) is: tree elastomer, styrene-butadiene rubber(SBR), shoddy and rubber powder drop into Banbury mixer and pressed bolt 2.5 minutes; Add light calcium carbonate, zinc oxide, Triple Pressed Stearic Acid, anti-aging agent, tackifier and flow dispersion agent then and pressed bolt 4 minutes; Add tenderizer then, discharge, extrude down sheet and form master batch; Master batch adds sulphur, promotor mixing at last, and following sheet is cooled to the making that room temperature is accomplished rim strip glue.
Embodiment 2 (use carbon black)
Proportioning (kilogram): tree elastomer 12, styrene-butadiene rubber(SBR) 16, shoddy 65, carbon black 6, light calcium carbonate 5, zinc oxide 2.5, Triple Pressed Stearic Acid 1.1, sulphur 1.2, anti-aging agent RD 1.3, promotor (rubber accelerator M) 0.55, tenderizer (aromatic hydrocarbon oil) 2.5.
Preparing method: use rubber internal mixer; Order of addition(of ingredients) is: tree elastomer, styrene-butadiene rubber(SBR), shoddy and rubber powder drop into Banbury mixer and pressed bolt 2.5 minutes; Add light calcium carbonate, zinc oxide, Triple Pressed Stearic Acid and anti-aging agent then and pressed bolt 4 minutes; Add tenderizer then, discharge, extrude down sheet and form master batch; Master batch adds sulphur, promotor mixing at last, and following sheet is cooled to the making that room temperature is accomplished rim strip glue.
The finished product rim strip preserve separately of embodiment 1 and embodiment 2 16 hours with deposit 3 months experimental result shown in table 1 and table 2.
Park 16 hours experimental result behind the table 1 rim strip finished product
The experimental result of table 2 rim strip products storage after three months
Be not difficult to find out from the experimental data of table 1 and table 2, use all very approaching of carbon black and the rim strip finished product each item physical index that uses two different ingredients of 60 order rubber powders to produce.Above experimental data has also shown the finished product physical index of parking after three months and also has been to use the more stable of rubber powder, and performance the most significantly is exactly a Shao Er hardness, and the finished product Shao Er hardness that the prescription of use rubber powder is produced has kept relative stablizing.Simultaneously because the price of 60 order rubber powders almost is about half of carbon black price; Again because the amount ratio sooty consumption of rubber powder increases to some extent in prescription; Descend in that (unit price of embodiment 1 is 7.26 yuan/kilogram more than 0.15 yuan through the cost per kilogram of adjusting whole prescription; The unit price of embodiment 2 is 7.48 yuan/kilogram), the cost keeping of embodiment 1 and embodiment 2 respectively like table 3, shown in 4.
Table 3 embodiment 1 cost keeping table
Table 4 embodiment 2 cost keeping tables
Embodiment 3 (use rubber powder)
Proportioning (kilogram): tree elastomer 18, styrene-butadiene rubber(SBR) 22, shoddy 70, rubber powder (60 order) 12, light calcium carbonate 5, zinc oxide 2.8, Triple Pressed Stearic Acid 1.5, sulphur 1.5, anti-aging agent (antioxidant 4010NA) 1.4, promotor (rubber accelerator DM) 0.7, tenderizer (aromatic hydrocarbon oil) 4, tackifier (p tert butylphenol formaldehyde resin) 1.8, flow dispersion agent (China steps chemical industry HM-24) 0.7.
Preparing method: use rubber internal mixer; Order of addition(of ingredients) is: tree elastomer, styrene-butadiene rubber(SBR), shoddy and rubber powder drop into Banbury mixer and pressed bolt 3 minutes; Add light calcium carbonate, zinc oxide, Triple Pressed Stearic Acid, anti-aging agent, tackifier and flow dispersion agent then and pressed bolt 5 minutes; Add tenderizer then, discharge, extrude down sheet and form master batch; Master batch adds sulphur, promotor mixing at last, and following sheet is cooled to the making that room temperature is accomplished rim strip glue.
Embodiment 4 (use rubber powder)
Proportioning (kilogram): tree elastomer 10, styrene-butadiene rubber(SBR) 15, shoddy 40, rubber powder (60 order) 10, light calcium carbonate 4, zinc oxide 2, Triple Pressed Stearic Acid 1.0, sulphur 1.2, anti-aging agent (anti-aging agent 4020) 1.2, promotor (rubber accelerator DM) 0.5, tenderizer (aromatic hydrocarbon oil) 3.2, tackifier (tertiary butyl phenol aldehyde tackifying resin) 1.2, flow dispersion agent 0.6 (China steps chemical industry HM-24).
Preparing method: use rubber internal mixer; Order of addition(of ingredients) is: tree elastomer, styrene-butadiene rubber(SBR), shoddy and rubber powder drop into Banbury mixer and pressed bolt 2 minutes; Add light calcium carbonate, zinc oxide, Triple Pressed Stearic Acid, anti-aging agent, tackifier and flow dispersion agent then and pressed bolt 3 minutes; Add tenderizer then, discharge, extrude down sheet and form master batch; Master batch adds sulphur, promotor mixing at last, and following sheet is cooled to the making that room temperature is accomplished rim strip glue.