文章信息/Info

Title:

Thixotropy of Material and Exploitation of Thixotropic Material

作者:

劉通; 張增志; 吳浩平; 武斌

1. 中國礦業(yè)大學(xué)（北京）生態(tài)功能材料研究所，北京， 100083

Author(s):

 Liu Tong;  Zhang Zengzhi;  Wu Haoping;  Wu Bin

Research Institute of Ecological and Functional Material, China University of Mining & Technology, Beijing 100083 China

關(guān)鍵詞:

觸變; 正觸變; 負觸變; 觸變材料

Keywords:

thixotropy; positive thixotropy; negative thixotropy; thixotropic material

DOI:

10.7502/j.issn.1674-3962.2018.10.04

文獻標志碼:

A

摘要:

觸變性是分散體系流變學(xué)中一種特殊的現(xiàn)象，是指在攪動或其它機械力作用下，這些體系的粘度或切力隨時間發(fā)生變化的一種流變現(xiàn)象。研究開發(fā)觸變性材料，使其在“緊急”外力作用下，通過材料在結(jié)構(gòu)性能上的短時“響應(yīng)”變化，在緊急制動、減緩沖擊、緩降逃生、防彈衣、泥漿固井等需要“瞬變響應(yīng)”的工程場合加以應(yīng)用，具有十分重要的意義。本文對自然界和工程中的觸變性物質(zhì)進行了綜合分析，從正觸變及負觸變兩方面介紹了觸變材料的研究現(xiàn)狀，分析了觸變材料的應(yīng)用領(lǐng)域和應(yīng)用前景。

Abstract:

Thixotropy is a kind of special phenomenon in dispersion system rheology, that refers to a rheological phenomenon, in which the viscosity or shear force of these systems changes with time under agitation or other mechanical forces. Under the action of “emergency” external force, through short-term “response” changes in structural properties, it is of great significance to research and develop thixotropic materials to be applied in engineering applications, that require “transient response” such as emergency braking, shock mitigation, slow-moving escape, body armor, and mud cementing, etc. In this paper, the thixotropic substances in nature and engineering are analyzed. The research status of thixotropic materials is introduced from positive thixotropy and negative thixotropy. At the same time, the application fields and application prospects of thixotropic materials are analyzed.