A kind of water-soluble rubber and plastic recycled plastic softener and its preparation method and application

Abstract

The invention discloses a water soluble rubber and plastic regeneration plasticizing softening agent, and a preparation method and applications thereof in the field of regenerated rubber. The preparation method comprises following steps: (1) emulsifier alkyl sodium sulfonate and water are prepared into a solution A at a certain ratio; (2) rubber auxiliary agent rosin and resin are delivered into a reactor at a certain ratio for mixing, and a mixed solution B is obtained via fusion at 110 to 140 DEG C, the mixed solution B is cooled to 95 DEG C, and the temperature is maintained; (3) the solution A obtained in step (1) is added into the mixed solution B dropwise at a constant speed, and an obtained mixture is stirred at 90 to 95 DEG C until stable emulsion states are reached so as to obtain the water soluble rubber and plastic regeneration plasticizing softening agent. The preparation method is simple; operation is convenient; and industrial application prospect is promising. The water soluble rubber and plastic regeneration plasticizing softening agent is capable of realizing standard production of waste rubber and plastic regeneration plasticizing softening agent products; controllability of secondary pollution in rubber regeneration and plasticizing process is improved; product cost is reduced; and the quality of regenerated rubber is increased.

Description

technical field [0001] The invention belongs to the field of development and utilization of waste resources, and in particular relates to a preparation method and application of a water-soluble rubber and plastic regenerated plastic softener. Background technique [0002] my country is a big country in the world for the recycling of waste rubber. Its annual production of reclaimed rubber and the use of reclaimed rubber ranks first in the world. At present, there are two main methods of producing reclaimed rubber: one is the traditional high temperature and high pressure dynamic desulfurization method; the other is It is the normal-pressure high-temperature twin-screw plasticizing desulfurization method that has just been promoted. Both of these processes require the use of recycled plastic softeners. [0003] The currently used recycled plastic softeners are mainly made of coal tar (liquid at room temperature, solid at room temperature), pine tar, aromatic oil, tall oil, blen...

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Problems solved by technology

[0004] The process of dynamic desulfurization is to put rubber powder, softened and plasticized coal tar, pine tar, aromatic oil, tall oil, blended aromatic oil, odorless pine tar desulfurization tank, etc. into the desulfurization tank, and then, under high temperature and high pressure conditions Desulfurization will cause two problems: (1) the quality and proportion of various raw materials used as softening plasticizers are not easy to control, which will not only affect the desulfurization effect, but also cause environmental pollution; (2) due to the added The concentration of various additives is very high, which will cause the concentration of these additives to be distributed unevenly throughout the desulfurization tank. In some places, the concentration is high, resulting in waste of additives. The local concentration is low, which affects the desulfurization effect