A kind of admixture microcapsule based on microwave controlled release and preparation method thereof

Abstract

The present invention relates to the field of admixtures for building materials, in particular to an admixture microcapsule based on microwave controlled release and a preparation method thereof; Vinyl fluoride fiber; the capsule core is an admixture that requires controlled release; the packaging material is a heat-sensitive phase change material; the PDVF material in the disclosed method has high strength, acid and alkali resistance, and is suitable for use in building materials; the most important The most important thing is that the PDVF material can realize the microwave response, so that the active and controlled release of the admixture in the concrete can be realized, which effectively solves the problem of performance loss caused by the early release of the admixture.

Description

technical field

[0001] The invention relates to the field of admixtures for building materials, in particular to an admixture microcapsule based on microwave controlled release and its preparation method and application. Background technique

[0002] Concrete is one of the most widely used building materials in modern engineering construction, and admixtures play an increasingly important role in concrete. Appropriate addition of different admixtures can bring different performance improvements to concrete: water reducing agent can adjust the work performance of fresh concrete to benefit the later strength; early strength agent can promote hydration and improve the early strength of concrete; retarder or accelerator The setting time of cement can be adjusted; the air-entraining agent or rust inhibitor is beneficial to the durability of concrete, etc. From the beginning of mixing the raw materials to the hardening and maturity of concrete, different admixtures need to work i...

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