Modification method of modified asphalt SBS

A modified asphalt, modified technology, applied in building components, building insulation materials, construction, etc.

Pending Publication Date: 2021-06-04
徐州鑫满诚建材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a modification method of modified asphalt SBS and its application method, whic

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  • Modification method of modified asphalt SBS

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] see figure 1 : a modification method of modified asphalt SBS, is characterized in that: comprise the following steps,

[0025] Step (A), preparing raw materials, performing proportioning, and preparing SBS;

[0026] Step (B), cooling and molding the prepared SBS;

[0027] In step (C), the SBS molded in step (B) is heated and melted to be...

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Abstract

The invention discloses a modification method of modified asphalt SBS. The method comprises the following steps: mixing a polybutadiene monomer and a polystyrene monomer, dissolving, and fully stirring and mixing, wherein a polystyrene section forms a micro-area to be dispersed in a rubber phase and has a physical cross-linking effect on polybutadiene so as to provide a cross-linking point effect and a particle reinforcing effect, a polystyrene phase is highly ordered under an equilibrium condition, the form of the polystyrene phase is changed along with the increase of the doping amount of polystyrene, after an SBS modifier is added into asphalt, part of oil in the asphalt is adsorbed by the modifier and enters a modifier network, and the oil capable of entering the modifier network in the asphalt is limited, so that the modifier only can be swelled but cannot be dissolved in the asphalt, the swelled modifier is uniformly distributed in the asphalt in the form of independent particles, the properties of the asphalt are changed, and some properties of the modifier are also changed. According to the invention, the problem that the optimal SBS blending amount needs to be obtained through comparison of experiments and actual inspection is solved.

Description

technical field [0001] The invention relates to the technical field of food preservation, in particular to a method for modifying modified asphalt SBS. Background technique [0002] The properties of SBS modified asphalt are closely related to the physical and chemical properties of SBS. SBS is a tough and highly elastic material when it is lower than the glass transition temperature Tg2 corresponding to the polystyrene component, and at a higher temperature, it becomes a fluid state close to a linear polymer, so it has the elasticity of rubber , and thermoplastic resin. As a kind of thermoplastic elastomer, SBS is easy to blend with asphalt after heating and melting, and can restore its elastomeric properties after cooling, forming a network structure in asphalt, thereby changing the mechanical properties of asphalt, so that it has excellent performance in the temperature range of road use. Fairly high mechanical strength and elasticity. This characteristic of being in a...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02
CPCC08L95/00C08L53/02
Inventor 封钦辉
Owner 徐州鑫满诚建材科技有限公司
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