CN104861207A - Heat resisting organosilicone composite material and preparation method thereof - Google Patents

Heat resisting organosilicone composite material and preparation method thereof Download PDF

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CN104861207A
CN104861207A CN201510246332.2A CN201510246332A CN104861207A CN 104861207 A CN104861207 A CN 104861207A CN 201510246332 A CN201510246332 A CN 201510246332A CN 104861207 A CN104861207 A CN 104861207A
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water glass
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organosilicone
composite material
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谈成访
王少鹍
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Suzhou University
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Suzhou University
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Abstract

The invention discloses a heat resisting organosilicone composite material. The heat resisting organosilicone composite material is composed of raw materials of, by weight part, 0.7-2 parts of lauryl mercaptan, 6-7 parts of sodium metaaluminate, 1-2 parts of thirteen fluorine octyl triethoxy silane, 70-100 parts of water glass, 1-2.4 parts of acrylic acid rosin, 13-20 parts of alkali cellulose, 1-2 parts of benzotriazole, 20-30 parts of titanium dioxide, 0.7-1 part of polyoxyethylene ether, 3-4 parts of dioctyl sebacate, 4-10 parts of styrene, 0.1-0.3 part of chitosan, 4-6 parts of perchloro-ethylene resin, 0.1-0.2 part of lithium carbonate and 30-40 parts of dimethyl carbonate. A preparation method of the heat resisting organosilicone composite material includes: firstly mixing the styrene, the acrylic acid rosin and the alkali cellulose to proceed a cross-linking reaction, obtaining a cross-linking product with good consistency, and then using the alkali cellulose to modify the water glass, wherein the added thirteen fluorine octyl triethoxy silane can reduce surface energy, and improves system stability, and finally mixing with the processed titanium dioxide and adding to a silicalock system formed from the water glass so as to form an effective combination. By using the preparation method of the heat resisting organosilicone composite material, an obtained finished product has good mechanical strength, is heat resistant, waterproof, and corrosion resistant, can be used on the fields of coating, rubber products and the like.

Description

A kind of high-temperature resistant silicone matrix material and preparation method thereof
Technical field
The present invention relates generally to field of compound material, particularly relates to a kind of high-temperature resistant silicone matrix material and preparation method thereof.
Background technology
Due to the structure of organosilicon uniqueness, have both the performance of inorganic materials and organic materials, there is surface tension low, temperature coefficient of viscosity is little, compressibility is high, gas permeability height waits essential property, and there is high-low temperature resistant, electric insulation, resistance to oxidation stability, weathering resistance, difficult combustion, hydrophobic, corrosion-resistant, the excellent specific properties such as nonpoisonous and tasteless and physiological inertia, be widely used in aerospace, electric, building, transport, chemical industry, weaving, food, light industry, the industries such as medical treatment, wherein organosilicon is mainly used in sealing, bonding, lubrication, coating, surfactivity, the demoulding, froth breaking, press down bubble, waterproof, moistureproof, inertia filling etc.Along with the sustainable growth of organosilicon quantity and kind, Application Areas is constantly widened, and forms the staple product system that new chemical materials circle is taken the course of its own, and many kinds are that other chemical cannot substitute and requisite; The basic structural unit of organosilicon product is made up of silicon-oxygen chain link, and side chain is then connected by the various organic group of Siliciumatom and other.Therefore, both containing " organic group " in the structure of organosilicon product, again containing " inorganic structure ", this special composition and molecular structure make it integrate the function of organic characteristic and inorganics.Compared with other macromolecular materials, the most outstanding properties of organosilicon product is: temperature-resistance characteristic, organosilicon product with silicon-oxygen (Si-O) key for backbone structure, the bond energy of C-C key is 82.6 kilocalories/mol, the bond energy of Si-O key is 121 kilocalories/mol in organosilicon, so the thermostability of organosilicon product is high, under high temperature, the chemical bond of (or radiation irradiation) molecule does not rupture, does not decompose.Organosilicon not only can be high temperature resistant, and low temperature resistant, can use in a very wide temperature range.No matter be chemical property or physical and mechanical properties, variation with temperature is all very little.The main chain of organosilicon product is-Si-O-, without double bond exist, therefore not easily by UV-light and ozone decompose.Organosilicon has than the better thermostability of other macromolecular materials and resistance to irradiation and weather-proof ability.Work-ing life in organosilicon under physical environment can reach decades.Organosilicon product all has good electrical insulation capability, its dielectric loss, proof voltage, resistance to electric arc, Inverter fed motor, volume resistivity and surface resistivity etc. all come out at the top in insulating material, and their electric property is very little by the impact of temperature and frequency.Therefore, they are a kind of stable electrically insulating materials, are widely used in electronics, electrical industry.Organosilicon is except having excellent thermotolerance, and also have excellent water repellency, this is that electric installation uses the guarantee with high reliability under hygrometric state condition.Biological active organic silicon is a kind of nutrient substance of needed by human.Organosilicon forms tissue and participates in metabolic important element.In the middle of each cell being stored in human body, as the support of cell construction, help other important substance as magnesium, phosphorus, the absorptions such as calcium simultaneously.Human body constantly can only obtain organosilicon by food.If keep 5 years, within 10 years, be even the young degree of 30 years, the organosilicon taking in organosilicon 20-30 milligram every day is particularly important.Organosilyl main chain is very submissive, and its intermolecular reactive force is much more weak than hydrocarbon polymer, and therefore, low than the hydrocarbon viscosity of same molecular weight, surface tension is weak, and surface energy is little, and film forming ability is strong.This low surface tension and low surface energy are that its obtains the major cause of many-sided application: every excellent properties such as hydrophobic, froth breaking, foam stabilization, antiseized, lubrication, glazing.Because organosilicon has the performance of these excellences above-mentioned, therefore its range of application widely.It not only uses as the special material of aviation, sophisticated technology, military technique department, and for each department of national economy, its range of application diffuses into: building, electric, weaving, automobile, machinery, leather papermaking, chemical industry light industry, metal and paint, medicine are medical.Organosilicon material, by the difference of its form, can be divided into: silane coupling agent (organosilicon chemistry reagent), silicone oil (silicone grease, silicon emulsion, Silicon surfactant), high-temperature silicon disulfide rubber, liquid silastic, silicone resin, mixture etc.
Wherein the application of silane coupling agent roughly can be summarized as three aspects: 1, for the surface treatment of glass fibre, the bond properties of glass fibre and resin can be improved, greatly improve the intensity of glass fibre reinforced composion, electrically, the performance such as water resistant, anti-weather, even if when hygrometric state, it is to the raising of matrix material machinery performance, and effect is also very remarkable.At present, in glass fibre, use silane coupling agent quite general, the silane coupling agent for this one side accounts for 50% of its total amount consumed, wherein uses more kind is vinyl silanes, aminosilane, methacryloxypropyl silane etc.2, for Inorganic Fillers Filled plastics.Surface treatment can be carried out to filler in advance, also can directly add in resin.The dispersiveness of filler in resin and bounding force can be improved, improve processing performance and improve the performances such as the machinery of filled plastics (comprising rubber), electricity and weather.3, as the tackifier of sealing agent, caking agent and coating, the performances such as their bonding strength, water-fast, weather can be improved.Difficult problem that cannot be bonding since silane coupling agent often can solve some material.
Summary of the invention
The object of the invention is just to provide a kind of high-temperature resistant silicone matrix material and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of high-temperature resistant silicone matrix material, it is made up of the raw material of following weight parts:
Lauryl mercaptan 0.7-2, sodium metaaluminate 6-7, ten trifluoro octyltri-ethoxysilane 1-2, water glass 70-100, acrylic acid rosin 1-2.4, soda cellulose 13-20, benzotriazole 1-2, titanium dioxide 20-30, Soxylat A 25-7 0.7-1, dioctyl sebacate 3-4, vinylbenzene 4-10, chitosan 0.1-0.3, supervinyi chloride resin 4-6, Quilonum Retard 0.1-0.2, methylcarbonate 30-40.
A kind of high-temperature resistant silicone matrix material, the modulus of described water glass is 2-3.
A preparation method for high-temperature resistant silicone matrix material, comprises the following steps:
(1) join in methylcarbonate by lauryl mercaptan, stir, add the 70-80% of above-mentioned soda cellulose weight, raised temperature is 60-70 DEG C, adds vinylbenzene, acrylic acid rosin, insulation reaction 2-3 hour;
(2) remaining soda cellulose is joined in its weight 10-15 times deionized water, add Soxylat A 25-7, the 16-20% of above-mentioned water glass weight, ten trifluoro octyltri-ethoxysilane are added after stirring, raised temperature is 60-65 DEG C, 1000-1600 rev/min of dispersed with stirring 7-10 minute, obtains modified water glass;
(3) joined by sodium metaaluminate in 10-15 times of deionized water, add titanium dioxide, Quilonum Retard, stir, raised temperature is 90-100 DEG C, is heated with stirring to water and does, wear into fine powder;
(4) mixed with remaining water glass by modified water glass, add the sulfuric acid that concentration is 30-35%, adjustment PH is 6-6.5, add the material obtained in step (1), 100-200 rev/min of dispersed with stirring 20-30 minute, adds the material obtained in step (3), and raised temperature is 100-130 DEG C, insulated and stirred 5-10 minute, cooling, adds each raw material of residue, stirs, spraying dry, to obtain final product.
Advantage of the present invention is:
First vinylbenzene, acrylic acid rosin, soda cellulose mixing are carried out crosslinking reaction by the present invention, obtain the good cross-linking products of consistency, then use soda cellulose modified water glass, wherein adding ten trifluoro octyltri-ethoxysilane can reduce surface energy, improves system stability; Titanium dioxide after last and surface treatment is mixed to join in the silica gel system that water glass formed, and can form effective combination, the finished product obtained has good physical strength, high temperature resistant, water-fast, erosion resistance, can be used in the field such as coating, rubber item.
Embodiment
Embodiment 1:
A kind of high-temperature resistant silicone matrix material, it is made up of the raw material of following weight parts:
Lauryl mercaptan 0.8, sodium metaaluminate 7, ten trifluoro octyltri-ethoxysilane 1, modulus are water glass 87, acrylic acid rosin 2, soda cellulose 17, benzotriazole 2, titanium dioxide 30, Soxylat A 25-7 0.9, dioctyl sebacate 3, vinylbenzene 8, chitosan 0.3, supervinyi chloride resin 4, Quilonum Retard 0.1, the methylcarbonate 40 of 2.
A preparation method for high-temperature resistant silicone matrix material, comprises the following steps:
(1) join in methylcarbonate by lauryl mercaptan, stir, add 70% of above-mentioned soda cellulose weight, raised temperature is 70 DEG C, adds vinylbenzene, acrylic acid rosin, insulation reaction 2 hours;
(2) remaining soda cellulose is joined in its weight 15 times of deionized waters, add Soxylat A 25-7, add 20%, ten trifluoro octyltri-ethoxysilane of above-mentioned water glass weight after stirring, raised temperature is 65 DEG C, 1600 revs/min of dispersed with stirring 10 minutes, obtain modified water glass;
(3) joined by sodium metaaluminate in 15 times of deionized waters, add titanium dioxide, Quilonum Retard, stir, raised temperature is 100 DEG C, is heated with stirring to water and does, wear into fine powder;
(4) modified water glass is mixed with remaining water glass, add the sulfuric acid that concentration is 35%, regulate PH to be 6.5, add the material obtained in step (1), 200 revs/min of dispersed with stirring 30 minutes, add the material obtained in step (3), raised temperature is 130 DEG C, insulated and stirred 10 minutes, cooling, adds each raw material of residue, stirs, spraying dry, to obtain final product.
Embodiment 2:
A kind of high-temperature resistant silicone matrix material, it is made up of the raw material of following weight parts:
Lauryl mercaptan 1.2, sodium metaaluminate 7, ten trifluoro octyltri-ethoxysilane 1.3, modulus are water glass 93, acrylic acid rosin 2, soda cellulose 18.5, benzotriazole 1.6, titanium dioxide 30, Soxylat A 25-7 0.9, dioctyl sebacate 3, vinylbenzene 8.6, chitosan 0.23, supervinyi chloride resin 4, Quilonum Retard 0.1, the methylcarbonate 37 of 2.
A preparation method for high-temperature resistant silicone matrix material, comprises the following steps:
(1) join in methylcarbonate by lauryl mercaptan, stir, add 70% of above-mentioned soda cellulose weight, raised temperature is 70 DEG C, adds vinylbenzene, acrylic acid rosin, insulation reaction 2 hours;
(2) remaining soda cellulose is joined in its weight 15 times of deionized waters, add Soxylat A 25-7, add 20%, ten trifluoro octyltri-ethoxysilane of above-mentioned water glass weight after stirring, raised temperature is 68 DEG C, 1600 revs/min of dispersed with stirring 10 minutes, obtain modified water glass;
(3) joined by sodium metaaluminate in 15 times of deionized waters, add titanium dioxide, Quilonum Retard, stir, raised temperature is 100 DEG C, is heated with stirring to water and does, wear into fine powder;
(4) modified water glass is mixed with remaining water glass, add the sulfuric acid that concentration is 35%, regulate PH to be 6.5, add the material obtained in step (1), 200 revs/min of dispersed with stirring 30 minutes, add the material obtained in step (3), raised temperature is 120 DEG C, insulated and stirred 6 minutes, cooling, adds each raw material of residue, stirs, spraying dry, to obtain final product.

Claims (3)

1. a high-temperature resistant silicone matrix material, is characterized in that what it was made up of the raw material of following weight parts:
Lauryl mercaptan 0.7-2, sodium metaaluminate 6-7, ten trifluoro octyltri-ethoxysilane 1-2, water glass 70-100, acrylic acid rosin 1-2.4, soda cellulose 13-20, benzotriazole 1-2, titanium dioxide 20-30, Soxylat A 25-7 0.7-1, dioctyl sebacate 3-4, vinylbenzene 4-10, chitosan 0.1-0.3, supervinyi chloride resin 4-6, Quilonum Retard 0.1-0.2, methylcarbonate 30-40.
2. a kind of high-temperature resistant silicone matrix material according to claim 1, is characterized in that the modulus of described water glass is 2-3.
3. a preparation method for high-temperature resistant silicone matrix material as claimed in claim 1, is characterized in that comprising the following steps:
(1) join in methylcarbonate by lauryl mercaptan, stir, add the 70-80% of above-mentioned soda cellulose weight, raised temperature is 60-70 DEG C, adds vinylbenzene, acrylic acid rosin, insulation reaction 2-3 hour;
(2) remaining soda cellulose is joined in its weight 10-15 times deionized water, add Soxylat A 25-7, the 16-20% of above-mentioned water glass weight, ten trifluoro octyltri-ethoxysilane are added after stirring, raised temperature is 60-65 DEG C, 1000-1600 rev/min of dispersed with stirring 7-10 minute, obtains modified water glass;
(3) joined by sodium metaaluminate in 10-15 times of deionized water, add titanium dioxide, Quilonum Retard, stir, raised temperature is 90-100 DEG C, is heated with stirring to water and does, wear into fine powder;
(4) mixed with remaining water glass by modified water glass, add the sulfuric acid that concentration is 30-35%, adjustment PH is 6-6.5, add the material obtained in step (1), 100-200 rev/min of dispersed with stirring 20-30 minute, adds the material obtained in step (3), and raised temperature is 100-130 DEG C, insulated and stirred 5-10 minute, cooling, adds each raw material of residue, stirs, spraying dry, to obtain final product.
CN201510246332.2A 2015-05-14 2015-05-14 Heat resisting organosilicone composite material and preparation method thereof Pending CN104861207A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105524427A (en) * 2016-01-28 2016-04-27 广西大学 Cable sheath with high corrosion resistance and weather resistance

Citations (4)

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Publication number Priority date Publication date Assignee Title
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1354206A (en) * 2000-11-16 2002-06-19 武进市小河新达电信设备厂 High-temp. resistant antioxidation coating for graphite electrode
JP2004269737A (en) * 2003-03-10 2004-09-30 National Institute Of Advanced Industrial & Technology Coating material
CN101066918A (en) * 2006-12-22 2007-11-07 中国林业科学研究院林产化学工业研究所 Process of preparing double functional group acrylate based on acrylic rosin
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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105524427A (en) * 2016-01-28 2016-04-27 广西大学 Cable sheath with high corrosion resistance and weather resistance

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