NBR rubber plate with high laser engraving efficiency and preparation method thereof

Abstract

The invention discloses an NBR rubber plate with high laser engraving efficiency. The NBR rubber plate is prepared from the following components in percentage by weight: 43 to 51 percent of nitrile rubber, 37.5 to 45.5 percent of a reinforcing filler, 0.5 to 2.0 percent of an anti-aging agent, 1.5 to 4.5 percent of a plasticizer, 2.5 to 6.5 percent of other compounding agents and 2.0 to 5.0 percent of a vulcanization accelerator. A sulfur system is adopted in the product, and the product has the advantages of being high in vulcanization speed, good in elasticity, low in compression set, small in power needed by laser engraving, high in speed, clear in engraved pattern, low in ashing degree of an engraved face, little in smoke in the engraving process, small in smell and the like.

Description

technical field [0001] The invention relates to rubber, in particular to an NBR rubber sheet with high laser engraving efficiency and a preparation method thereof. Background technique [0002] Rubber offset printing plates, rubber seals and rubber stamps can be manufactured using the laser engraving method. Using laser ablation technology, through laser irradiation, commonly used light sources include excimer lasers with 193, 248 or 308nm lasers, Nd-YAG lasers with a wavelength of 1.06um, and CO with a wavelength of 10.6um. 2 laser. In the process of laser irradiating the polymer, the absorbed radiation energy is converted into heat energy, and the local heat generation causes the polymer chain to crack and further generate low-molecular substances to be ablated, forming the desired pattern. [0003] Compared with the traditional molded rubber sheet technology, laser engraved rubber sheet has several advantages: traditional molded rubber sheet, the molding process is cumb...

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Problems solved by technology

[0003] Compared with the traditional molded rubber sheet technology, laser engraved rubber sheet has several advantages: traditional molded rubber sheet, the molding process is cumbersome, and the etching process requires the use of corrosive chemicals, which not only brings safety problems, and pollute the environment

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