Formula and preparation method of liquid silicone rubber

Abstract

The invention discloses a formula and preparation method of liquid silicone rubber, and belongs to the technical field of preparation of the liquid silicone rubber. The liquid silicone rubber is prepared from the following raw materials: 20%-50% of silica, 45%-75% of oligosiloxane, 1%-10% of polymethyl hydrosiloxane, 2%-10% of a vulcanizing agent, 0.1%-5% of a chain extender, and 1%-15% of an anti-sticking agent. According to the formula and preparation method of the liquid silicone rubber, the fluidity of a rubber material can be better through the vulcanizing agent; a reaction can be accelerated with the increase of the temperature through the chain extender; a solution can be prevented from sticking to the inside of a device due to too high consistency through the anti-sticking agent; a reciprocating driving mechanism works to drive a stirring rod to rotate, so that the stirring rod drives a stirring cleaning assembly to clean the inner wall of the device while the solution is stirred, thereby enabling the solution to react completely to avoid being stuck to the device due to too high consistency; the preparation efficiency is improved.

Description

Technical field [0001] The invention relates to the technical field of liquid silica gel preparation, in particular to a liquid silica gel rubber formula and a preparation method thereof. Background technique [0002] Liquid silica gel is relative to solid high temperature vulcanized silicone rubber. It is a liquid rubber, which has the characteristics of good fluidity, fast vulcanization, safer and more environmentally friendly, and can fully meet the requirements of food grade. According to the functional groups contained in the molecular structure (ie Connection point) position, liquid rubbers with functional groups are often divided into two categories: one is telechelic liquid rubber with functional groups at both ends of the molecular structure; the other is the random distribution of active functional groups in the main chain , That is, those with functional groups in the molecular structure are called non-teleclaw liquid rubber. Liquid silicone rubber can be used for trad...

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Problems solved by technology

The preparation method of the formula of the crab-flavored mushroom liquid strain culture medium comprises the following steps: medium configuration, adjustment, sterilization, inoculation and cultivation, due to the adoption of the above-mentioned technical scheme, after the present invention is used as the culture medium of the crab-flavored mushroom liquid strain, crab Mushroom mycelium grows fast, has strong vitality, high mycelium content, good germination rate of bacteria after inoculation, short fermentation cycle, and high yield. Although this patent can improve the yield, there are still defects. When preparing raw materials The slow reaction time may lead to incomplete reaction and too high viscosity, sticking to the inner wall of the device is not suitable for removal

[0004] The authorized announcement number after retrieval is CN101844952B, which discloses a humic acid liquid fertilizer formula and production method, which relates to the field of agricultural fertilizers, and is characterized in that humic acid ≥ 8%, iron 0.2-1%, manganese 0.6-1%, 0.3-1% zinc, 0.2-1% copper, 0.5-1% boron, 0.2-1% molybdenum, any combination of two or more than 2% mixed with water, after fully stirring, place it for 1-2 hours, Subpackaging is the product, which can not only balance soil fertility, activate soil nutrients, promote full absorption of nutrients, regulate crop growth, increase yield, but also improve crop quality and fertilizer utilization rate; compared with similar products, it has good fertilizer efficiency , the preparation process is simple, the raw materials are easy to obtain, and the preparation cost is low. Although the preparation cost of this patent is low, there are still defects. The slow natural reaction time during the preparation of raw materials may lead to incomplete reaction. The viscosity is too high and sticks to the inner wall of the device. should not be cleared

[0005] The existing liquid silicone rubber is prepared by allowing the raw materials to react naturally, which may cause the liquid to be too thick due to incomplete reaction, making the product unqualified and easy to stick to the inner wall of the device and difficult to clean. To solve the above problems, we propose A kind of liquid silicone rubber formula and preparation method thereof

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