Regenerant for regenerated rubber and preparation method of regenerant
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A technology of reclaimed rubber and rejuvenating agent
Active Publication Date: 2014-12-10
CHINA RUBBER RESOURCE REGENERATION QINGDAO
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[0006] In order to solve the problems in the prior art that it is not easy to feed the regeneration aid, the mixing of the regeneration aid and the rubber powder is uneven, and the ease of use of the softener is different from the excellent regeneration effect. The present invention provides a regeneration agent for regenerated rubber. It contains all regeneration aids, and integrates activator, auxiliary softener and other auxiliary agents through the main softener. The regeneration agent of the present invention is easy to weigh, transport and feed at room temperature, and is mixed with rubber powder more uniform
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Embodiment 1
[0032] Heat 30 parts by weight of gutter oil, 20 parts by weight of naphthenic oil and 20 parts by weight of soybean oil to 70°C with a rotation speed of 100 rpm; after stirring evenly, add 30 parts by weight of coal tar, stir for 9 minutes, and rotate at a speed of 80 rpm / min, the temperature reaches 70°C; then add 3 parts by weight of activator 450, 15 parts by weight of Coumaron resin, 10 parts by weight of phenolic resin and 10 parts by weight of pottery clay, heat and stir for 8min to make the phases compatible; stir After uniformity, cool and stand for 1.5 hours to obtain a regenerant for regenerated rubber (named Z-1).
Embodiment 2
[0034] Heat 50 parts by weight of soybean oil and 10 parts by weight of linseed oil to 100°C at a speed of 120 rpm; after stirring evenly, add 40 parts by weight of aromatic oil, stir and heat to 80°C at a speed of 180 rpm, and stir for 8 minutes Then add activator 450 of 2 mass parts, the R1 resin of 8 mass parts, the epoxy resin of 2 mass parts, the carbon black of 10 mass parts, the high styrene resin of 5 mass parts, heat and stir 7min, make each phase content; after stirring evenly, cool and stand for 1 hour to obtain a regenerant for reclaimed rubber (named Z-2).
Embodiment 3
[0036] Heat 50 parts by weight of oleic acid, 30 parts by weight of naphthenic oil, and 5 parts by weight of natural powdered phenol to 60°C at a speed of 160 rpm; after stirring evenly, add 15 parts by weight of petroleum sludge, stir and heat to 80°C, Rotating speed 180 revs / min, stir 5min; Then add the R1 resin of the activator 480 of 1 mass part, 14 mass parts, the epoxy resin of 4 mass parts, the carbon black of 5 mass parts, the high styrene resin of 6 mass parts, Heat and stir for 8 minutes to make the phases compatible; after stirring evenly, cool and stand for 1.2 hours to prepare a regenerant for regenerated rubber (named Z-3).
[0037] In the actual regenerated rubber production, various auxiliary agents and regenerants in the present invention have rotational viscosities as shown in the table below:
[0038] Table 1 Comparison of rotational viscosities of additives
[0039]
[0040] It can be seen from Table 1 that the rejuvenating agent prepared by the present...
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Abstract
The invention provides a regenerant for regenerated rubber and a preparation method of the regenerant. The regenerant for the regenerated rubber comprises an activator, a softener, a tackifier and a fortifier which are uniformly mixed, wherein the softener comprises a main softener and an auxiliary softener, the viscosity of the main softener is 20-40mPa.s and the main softener accounts for 24-70% by mass of the whole system. The regenerant for the regenerated rubber has the advantages that (1) various regenerating auxiliaries are fused together by virtue of processes of heating, stirring and the like, and materials are convenient and simple to input; (2) the regenerating auxiliaries are not heated again, so that the regenerant is safe to operate; (3) the solid regenerating auxiliaries are not crushed and stirred, so that materials are easy to input; (4) the defect that conventional activator and softener are sticky and adverse to automatically weigh, convey and uniform spray is overcome; (5) main and auxiliary softeners are matched in use, so that the regenerant is convenient to use and excellent in regenerating effect; and (6) the regenerant is low in viscosity, single in character, flowable at normal temperature and easy to store, package and convey.
Description
technical field [0001] The invention relates to a regeneration agent suitable for the production of recycled rubber and a preparation method thereof, which belongs to the field of waste rubber recycling and reuse. Background technique [0002] In 2013, China's annual output of waste rubber regeneration reached more than 3 million tons. At present, domestic recycled rubber production equipment is mainly dynamic tanks and continuous plasticizers, and the recycled additives used include activators, softeners and other powdery, granular or blocky additives. [0003] In the production process of the dynamic tank, the activator and softener need to be heated until softened and then weighed and fed, or put into plastic packaging with a fixed quality, and other additives are weighed and put directly into it. There is basically no problem in the feeding of additives; but other High temperature, high pressure, high pollution, and discontinuous production process are the factors that ...
Claims
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Application Information
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