Preface
Heat-resisting high polymer is to point to the high polymer stuff that has stability of good high temperature, apply extensively at the domain such as aerospace, the sources of energy, electron, building materials. In modern industry and domain of science and technology, high polymer material is a kind of indispensable material. As the development of science and technology, people is higher and higher to the requirement of high polymer material, and high temperature stability is one of main character that high polymer material must have. Material of heat-resisting high polymer has good property performance below high temperature environment, can wait like stability of high temperature intensity, tall hear resistance, tall oxidation, low creep and better processability. Accordingly, material of heat-resisting high polymer is the mainstream material of demand of application of contented future high temperature.
Fiber of fragrant black silk ribbon
Fragrant black silk ribbon 1313 it is a kind of thread that has special function, the earliest by research and development of American Du Bang company. Exterior of this kind of fiber and common chemical fibber are similar, but have a lot of unique character however. The most outstanding characteristic is his high temperature resistant the gender is very outstanding, can be used for a long time below the high temperature of 220 ℃ and do not produce ageing. Below the temperature that controls in 250 ℃ , its dimension stability is very good, hot shrinkage is only 1% . The limiting oxygen index of 1313 is more than fragrant black silk ribbon 28% , belong to flame retardant fiber, do not support combustion, good from extinguish function. Just begin to decompose in 370 ℃ above, 400 ℃ left and right sides begins carbonization. Accordingly, fragrant black silk ribbon 1313 be taken at defending by wide application, the domain such as fire prevention car, aviation and automobile industry, in order to satisfy the requirement of pair of high-powered, tall wear and high temperature stability.
Phenyl silicon balata
Photograph of phenyl silicon balata is methylic to showing some vinyl silicon balata, of phenyl silicon balata be able to bear or endure lukewarm performance is more superior, its are able to bear or endure lukewarm limits can expand - 70 ℃ - 350 ℃ , short-term job temperature can be amounted to more - 110 ℃ - 400 ℃ , still have be able to bear or endure ablation and anti-radiant character. Accordingly, it is applied extensively at the domain such as deep refrigeration of electric equipment of electric power, electron, car, industry, aerospace, engine. Phenyl content is in of 5%-15% call balata of low phenyl silicon; Phenyl content is in the balata of silicon of the phenyl in calling of 15%-25% ; And phenyl content is in of 30% above call balata of tall phenyl silicon. As phenyl content rise, molecular tigidity increases, anti-radiant and flame retardant function also rises accordingly. But, balata of silicon of medium, tall phenyl machines difficulty, physical machinery performance is poorer, consequently its are produced and use the restriction with get certain.
Boracic silicon balata
Boracic silicon balata is synthetic rubber of a kind of special type, its silicon oxygen advocate carbon is contained in catenary catenary of 10 boracic alkyl paragraph. It can fall in the high temperature that is as high as 410 ℃ short-term use, long-term scope of application is in commonly - 40 ℃ arrive between 350 ℃ , have as similar as silicon balata other character. Boracic silicon balata can resemble general silicon balata undertaking treatment and vulcanization euqally, commonly used the product that needs to be used below high temperature at making sealed spare parts and insulating material wait.
Get together acyl inferior amine
Get together acyl inferior amine is material of a kind of high polymer, advocate acyl is contained in catenary inferior amine structure, its element structure includes the main construction unit such as fragrant annulus and heterocycle. Get together acyl inferior amine is had highest flame retardant grade (UL-94) , good electric insulation property, mechanical function, chemical stability, ageing resistance can, be able to bear or endure the characteristic such as irradiation function and loss of low interpose report. In the meantime, these character are in very wide temperature range (- 269 ℃ - 400 ℃ ) inside won't produce marked change. Accordingly, get together acyl inferior amine is applied extensively at the domain such as microelectronics technology, aerospace, car, medical treatment, chemical industry.
Get together silicon nitrogen alkyl
Get together polymer of silicon nitrogen alkyl is a kind of element advocate contain in catenary duplicate the material of inorganic high polymer with Si-N, as a result of the characteristic of its chemistry structure, fall in high temperature condition but translate into pottery and porcelain of 2 oxidation silicon. Get together consequently silicon nitrogen alkyl is in high temperature resistant the respect has fundamental application value. Get together included angle of key of nitrogen of silicon of colophony of silicon nitrogen alkyl is small, the element bolts tension is amounted to, consequently molecular catenary becomes link not easily, happen not easily in process of molecular polymerization reaction time bite, the deputy reaction such as recomposition, thermal stability is good, replace through changing silicon atom or azotic atom base can design those who have specific property to get together colophony of silicon nitrogen alkyl, high temperature resistant quality (1800°C) hardness of outstanding, paint film is tall, ultrathin varnish, low viscosity; To the adherent force with superior material of bottom of great majority type.
Summary
Material of heat-resisting high polymer has good below high temperature environment property performance, include stability of high temperature intensity, tall hear resistance, tall oxidation, low creep and better processability to be able to wait. Material of these heat-resisting high polymer are having very big application perspective, and be in ceaseless innovation development, for future demand of high temperature application provides understanding definitely plan.
Origin: RIO data says