Preparation method of silica gel baking pad with good oleophobicity

Abstract

The invention discloses a preparation method of a silica gel baking pad with good oleophobicity, and relates to the technical field of food silica gel. The method comprises the following steps: (1) mixing vinyl silicone oil, hydrogen-containing silicone oil, rosin resin graft modified hydrogen-containing silicone oil, an inhibitor, a catalyst, modified nano silicon dioxide and a silane coupling agent to prepare liquid silica gel; (2) allowing the liquid silica gel obtained in the step (1) to stand, and performing treatment on the liquid silica gel after standing by adopting ultrasonic waves toobtain pretreated liquid silica gel; and (3) injecting the pretreated liquid silica gel obtained in the step (2) into a mold, performing drying until the liquid silica gel in the mold forms a semi-solidified state, and putting the semi-solidified silica gel in a plasma reaction chamber. The method provided by the invention can prepare the silica gel baking pad with excellent performance by rationally proportioning the raw materials of the silica gel baking pad, and the silica gel baking pad prepared by the method has oleophobicity.

Description

technical field [0001] The invention belongs to the technical field of food silica gel, and in particular relates to a preparation method of a silica gel baking mat with good oleophobicity. Background technique [0002] In traditional food cooking and baking operations, ordinary paper or aluminum foil is usually used as the bottom of the steamed or baked food, or the food is directly cooked and baked on the baking tray without using any bottom. In the process of baking food, due to the long time, the food and the paper will be tightly and firmly bonded together, so it is troublesome to remove, even if the paper bonded to the surface of the food is peeled off, there will be some food skin , not only affect the appearance of food, but also cause great waste, the latter will leave residues such as oil stains on the baking tray seriously, and it is not easy to clean. In order to solve the above problems, people have applied food-grade silica gel to make baking mats instead of t...

AI Technical Summary

Problems solved by technology

[0002] In traditional food cooking and baking operations, ordinary paper or aluminum foil is usually used as the bottom of the steamed or baked food, or the food is directly cooked and baked on the baking tray without using any bottom. In the process of baking food, due to the long time, the food and the paper will be tightly and firmly bonded together, so it is troublesome to remove, even if the paper bonded to the surface of the food is peeled off, there will be some food skin , not only affects the appearance of the food, but also causes great waste. The latter will leave serious oil stains and other residues on the baking tray when it is baked on a baking tray, which is not easy to clean

In order to solve the above problems, people have applied food-grade silica gel to make baking mats instead of traditional bottoms. However, the existing silicone baking mats are generally oleophobic. After working for a long time, the oil stains in the food during the baking process will penetrate into the silica gel. The performance of the silicone baking mat is gradually reduced due to the inside of the baking mat, and the service life is shortened

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