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Modified rubber particle preparation method
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A technology for modifying rubber and rubber particles, applied in the field of preparation of modified rubber particles, can solve problems such as cracks, and achieve the effect of environmental friendliness and good UV resistance
Active Publication Date: 2017-09-08
HUNAN YOUGUAN SPORTS MATERIAL CO LTD
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Problems solved by technology
In addition, in practice, after a period of time, many plastic runways appear "cracks"
Method used
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Embodiment 1
[0009] Example 1: A modified rubber particle was prepared according to the following specific steps.
[0010] Step 1, take 100ml mass concentration and be 90% H 2 SO 4 In, drop 141g butyl titanate Ti (OC 4 h 9 ) 4 , under the condition of vigorous stirring, add 10.6g of ferricoxide Fe in turn 2 o 3 and 5g of zincoxide ZnO, vigorously stirred for 1h to obtain a clear solution A;
[0012] Step 3, transfer solution B to solution A, 55 o C water bath conditions, static reaction 24h, dropwise added saturated calciumhydroxide Ca(OH) 2 solution, adjusting the pH value of the solution to neutrality to obtain solution C;
[0013] Step 4, in solution C, add 1000mL water, 424g black waste rubber particles with a particle size of 1mm-3mm, 14g polyvinyl alcohol and 7g gelatin, stir for 6h, the soluti...
Embodiment 2
[0014] Example 2: A modified rubber particle was prepared according to the following specific steps.
[0015] Step 1, take 100ml mass concentration and be 90% H 2 SO 4 In, drop 141g butyl titanate Ti (OC 4 h 9 ) 4 , under the condition of vigorous stirring, add 21.2g of ferric oxide Fe in turn 2 o 3 and 10g of zinc oxide ZnO, vigorously stirred for 2h to obtain a clear solution A;
[0017] Step 3, transfer solution B to solution A, 75 o Under the condition of C water bath, let stand for 48h, add saturated calciumhydroxide Ca(OH) dropwise 2 solution, adjusting the pH value of the solution to neutrality to obtain solution C;
[0018] Step 4, in solution C, add 2000mL water, 1131g styrene-butadiene rubber particles with a particle size of 1mm-3mm, 28g polyvinyl alcohol and 14g gelatin, stir...
Embodiment 3
[0019] Example 3: A modified rubber particle was prepared according to the following specific steps.
[0020] Step 1, take 100ml mass concentration and be 90% H 2 SO 4 In, drop 141g butyl titanate Ti (OC 4 h 9 ) 4 , under the condition of vigorous stirring, add 15g of ferric oxide Fe 2 o 3 and 7.5g zinc oxide ZnO, vigorously stirred for 1.5h to obtain a clear solution A;
[0022] Step 3, transfer solution B to solution A, 65 o C water bath conditions, static reaction 36h, dropwise added saturated calcium hydroxide Ca(OH) 2 solution, adjusting the pH value of the solution to neutrality to obtain solution C;
[0023] Step 4. In solution C, add 1500mL water, 800g colored EPDM particles with a particle size of 1mm-3mm, 20g polyvinyl alcohol and 10g gelatin, stir for 8 hours, cool the solution n...
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Abstract
The invention discloses a modified rubber particle preparation method. The method is technically characterized by comprising the following steps: first, adding organic butyl titanate into a certain amount of a sulfuric acid solution, slowly adding iron sesquioxide and zincoxide with intense stirring, and performing intense stirring to obtain a clear solution A; then, adding polypropylene fibers, sodiumligninsulfonate and hydroxyethyl cellulose into a certain amount of water, and performing stirring to obtain a solution B; next, transferring the solution B into the solution A under a water bath condition, performing reaction for a certain period of time, and adding dropwise a saturated calciumhydroxide solution to regulate the pH value of a system to neutral to obtain a solution C; finally, adding water, rubber particles, polyvinyl alcohol and gelatin into the solution C, performing stirring, performing natural cooling to room temperature, performing filtering to obtain a filter cake, and performing drying in a drying oven to obtain modified rubber particles D. The rubber particles are environmentally friendly, and have multiple good functions of ultraviolet resistance, aging resistance, cracking resistance, weather resistance, sterilization, deodorization and the like.
Description
technical field [0001] The invention relates to the field of environment-friendly building materials, in particular to a method for preparing modified rubber particles. Background technique [0002] As an excellent building material, rubber granules have important applications in the field of plastic runways. Since 2014, the media has reported the phenomenon of "poisonous running tracks" on campuses in Beijing, Shanghai, Jiangsu and other places. The so-called "poisonous running tracks" refer to the presence of toxic ingredients in the plastic running tracks on campus playgrounds, which have caused students' allergies, dizziness, nausea, etc. As a result, it has caused serious harm to human health. The reason for this phenomenon is that there are some unqualified materials in the plastic runway, which emit toxic and harmful substances. In addition, in practice, after a period of time, many plastic tracks appear "cracks". [0003] As excellent photocatalysts, titanium oxid...
Claims
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Application Information
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