Flame-retardant ceramic composite material and preparation method thereof
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A composite material and ceramic technology, applied in the polymer field, can solve the problems of shedding, brittle mica tapes, and high production costs, and achieve the effects of good flexibility and elasticity, isolation from external flames, and low production costs.
Active Publication Date: 2014-02-26
SHANGHAI KETER POLYMER MATERIAL
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Problems solved by technology
[0003] However, magnesia mineral refractory insulated cables have the following disadvantages in manufacturing and application: first, the equipment cost is high, and magnesia mineral refractory insulated cables require special production and processing equipment, which is expensive and the equipment cost is high; second, the production cost High, because the outer sheath of the magnesia mineral refractory insulated cable is all copper, the price of copper is high, making the production cost higher, and it is limited to a certain extent in terms of practical application; Laying, installation and use are inconvenient, because copper sheathed magnesium oxide mineral fire-resistant insulated cables have special requirements in the process of production, processing, transportation, line laying, installation and use, such as the production and processing of magnesium oxide mineral fire-resistant insulated cables cannot be compared with polymer materials Such convenient processing, cumbersome and complicated laying and installation, high cost of raw materials, it is difficult to popularize and apply on a large scale, especially in civil buildings, etc., until now it has not been widely and universally used
[0004] In the production process, the fire-resistant cable wrapped with mica tape needs to be wound in multiple layers. Due to the limitation of process conditions, lap joint defects often occur at the lap joints. The fire-resistant effect is reduced, and the circuit is short-circuited, making it difficult to ensure the safety and smoothness of power and communication in case of fire.
Mica tape is not well sealed, and the material often contains fluorine, which does not meet the requirements of some halogen-free cables
Method used
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preparation example Construction
[0074] There are two preparation methods for the flame-retardant ceramic composite material of this embodiment, and the first preparation method includes the following steps:
[0075] ① 100 parts of the polyolefin, 0-100 parts of silicone rubber, 1-100 parts of silicon dioxide, 0-30 parts of silicone oil, 0.00001-10 parts of platinum complex and / or platinum compound calculated as platinum, coupling agent 0-10 parts, 0-10 parts of antioxidant, 1-100 parts of flame retardant are kneaded in a kneader;
[0076] ② Vacuumize the kneader, keep the vacuum at -0.1~-0.04Mpa, and keep the temperature at 100~200°C;
[0077] ③Put 1-250 parts of vitrified powder into the kneader to make vitrified powder mixed with kneaded polyolefin, silicone rubber, silicon dioxide, silicone oil, platinum complex and / or platinum compound, coupling agent, antioxidant The agent and flame retardant are mixed evenly to form a group of ceramic rubber;
[0078] ④ move the lumpy ceramic rubber out of the kneade...
Embodiment 1
[0102]Get 100 parts of polyethylene, 20 parts of silicon dioxide, 1 part of methyl silicone oil, 0.01 part of 1000ppm isopropanol solution of chloroplatinic acid, 0.1 part of KH560 coupling agent, 20 parts of red phosphorus, and 20 parts of aluminum oxide, According to the first preparation method of the above-mentioned flame-retardant ceramic composite material, the flame-retardant ceramic composite material is prepared. When the flame-retardant ceramic composite material is vulcanized and formed, 1 part of 2,5-dimethyl-2,5-bis (tert-butylperoxy)hexane.
Embodiment 2
[0104] Take 100 parts of ethylene-vinyl acetate copolymer (EVA), 100 parts of silicon dioxide, 30 parts of hydroxyl silicone oil, 10 parts of 1000ppm isopropanol solution of chloroplatinic acid, 0.1 part of A171 coupling agent, 100 parts of red phosphorus, 150 parts of silicon dioxide, according to the first preparation method of the above-mentioned flame-retardant ceramic composite material, the flame-retardant ceramic composite material is prepared. When the flame-retardant ceramic composite material is vulcanized and formed, 2 parts of 2,4-dichloroperoxide Benzoyl oxide (commonly known as double ~ two four).
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Abstract
The invention discloses a flame-retardant ceramic composite material which comprises the following components in parts by weight: 100 parts of polyolefin, 0-100 parts of silicone rubber, 1-100 parts of silica, 0-30 parts of silicone oil, 0.00001-10 parts of platinum complex or platinum compound calculated based on platinum, 0-10 parts of coupling agent, 0-100 parts of flame retardant, 1-250 parts of porcelain powder, 0-10 parts of antioxidant, and 0.01-10 parts of vulcanizing agent. The materials are mixed in a kneading machine, the materials are added into the kneading machine through vacuumizing and then uniformly mixed so as to obtain bulk ceramic rubber, and after being cooled, the cooled rubber is subjected to open milling by adding the vulcanizing agent so as to obtain the flame-retardant ceramic composite material. The flame-retardant ceramic composite material disclosed by the invention is easy to process and low in production cost, and can be ablated into a ceramic shell so as to protect a burnt object from being damaged. Because a platinum complex or a platinum compound is added in the flame-retardant ceramic composite material disclosed by the invention, the sintering temperature of the flame-retardant ceramic composite material can be reduced, the reaction speed of preparation can be increased, the production efficiency is improved, and the production cost is lowered.
Description
technical field [0001] The invention relates to a polymer, in particular to a polymer with fire-resistant function. Background technique [0002] At present, most fire-resistant and flame-retardant cables use magnesium oxide mineral insulation or mica tape winding to achieve fire-resistant functions. [0003] However, magnesia mineral refractory insulated cables have the following disadvantages in manufacturing and application: first, the equipment cost is high, and magnesia mineral refractory insulated cables require special production and processing equipment, which is expensive and the equipment cost is high; second, the production cost High, because the outer sheath of the magnesia mineral refractory insulated cable is all copper, the price of copper is high, making the production cost higher, and it is limited to a certain extent in terms of practical application; Laying, installation and use are inconvenient, because copper sheathed magnesium oxide mineral fire-resis...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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