A kind of molded laser holographic recording material and its preparation method

Abstract

The invention discloses a molded laser holographic recording material and a preparation method thereof, wherein the molded laser holographic recording material includes imaging resin and irradiation grafted modified polytetrafluoroethylene micropowder for composite modification of the imaging resin ; The mass ratio of the radiation-grafted modified polytetrafluoroethylene micropowder to the imaging resin is 1 / 20-1 / 200. By improving the microcosmic composition and structure of the key materials, the present invention can effectively solve the problem that the resin used in the existing molding laser holographic information recording layer is prone to defects such as sticking plate, drop point or even defect in the molding process compared with the prior art , to obtain a molded laser holographic recording material with good internal uniformity and high stability.

Description

Technical field [0001] The invention belongs to the field of laser holographic information recording materials, and more specifically, relates to a molded laser holographic recording material and a preparation method thereof. The molded laser holographic recording material is composed of an imaging resin and radiation grafted modified polytetrafluoroethylene powder , Is a composite material especially suitable for molded laser holographic recording. Background technique [0002] Counterfeit and shoddy products not only harm the interests of merchants and consumers, affect the social and economic order, but also bring huge losses to national taxation. Anti-counterfeiting technology has become one of the effective means to combat counterfeit and shoddy products. Among the existing anti-counterfeiting technologies, the laser holographic embossing technology is widely used due to its advantages such as not easy to copy, diverse identification methods, and non-reusable. The technolog...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a molded laser holographic recording material and a preparation method thereof, wherein the key material microscopic composition and structure (especially surface treatment of polytetrafluoroethylene, etc.) ) is improved, compared with the prior art, it can effectively solve the problem that the resin used in the existing molded laser holographic information recording layer is prone to defects such as sticking plate, dropping points or even defects during the molding process. The present invention adopts irradiation graft modification The PTFE micropowder is composited with the imaging resin, and at the same time, the polymer is grafted on the surface of the PTFE micropowder by electron beam irradiation and the grafting rate is controlled, which can improve the compatibility of the PTFE micropowder and the imaging resin, and obtain A molded laser holographic recording material with good internal uniformity and high stability; and, the present invention controls the composition of the imaging resin and the irradiation grafted modified polytetrafluoroethylene micropowder in the composite material for the molded laser holographic recording. Ratio, so that the molded laser holographic recording material has good wear resistance and anti-sticking performance, which can greatly improve the efficiency of molding processing

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