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耐热输送带的生产原料有哪几种?

来源:http://www.huafengxiangsu.com 时间:2021-01-21 13:26:16 浏览次数:
(1)EPDM胶料,EPDM胶料是耐高温输送带中更常用的一种材料。其加工性能、物理机械性能都很好,而且价格也是几种材料中比较便宜的。但从上面的表格中可以看出,它的耐高温性能是所有材料中更差的,经不起180℃的长期考验。
(1) EPDM compound, EPDM compound is the most commonly used material in high temperature conveyor belt. Its processing performance, physical and mechanical properties are very good, and the price is cheaper in several materials. However, it can be seen from the above table that its high temperature resistance is the worst of all materials, and it can not withstand the long-term test of 180 ℃.
此外,EPDM与其他材料的粘附性较差,给制造输送带中间带夹层带来了一定的困难。耐热输送带的原料,胶带广泛用于矿产品运输、加工制造等各种传动设备中,具有耐弯曲、耐老化、耐高温、寿命长等优点。
In addition, the adhesion between EPDM and other materials is poor, which brings some difficulties to the manufacture of intermediate belt interlayer. As the raw material of heat-resistant conveyor belt, the belt is widely used in mineral products transportation, processing and manufacturing and other transmission equipment. It has the advantages of bending resistance, aging resistance, high temperature resistance and long service life.
(2)丙烯酸酯橡胶也是一种常用的耐高温橡胶材料,其耐高温性能优于三元乙丙橡胶,长期在180℃的高温下使用,性能良好,是耐油、耐化学品的优良载体。但是丙烯酸酯橡胶的生产工艺比较复杂。使用TCY系统,硫化速度过快,易烧焦,不宜作大型输送带;采用油酸盐硫化,硫化物性较差,必须进行二段硫化,影响生产效率。
(2) Acrylic rubber is also a common high temperature resistant rubber material, its high temperature resistance is better than EPDM, long-term use at 180 ℃ high temperature, good performance, is an excellent carrier of oil resistance and chemical resistance. But the production process of acrylic rubber is complex. If tcy system is used, the vulcanization speed is too fast and easy to scorch, so it is not suitable for large conveyor belt; if oleate is used for vulcanization, the sulfide property is poor, so the second stage vulcanization must be carried out, which affects the production efficiency.
山东输送带批发
(3)乙华平橡胶是一种新型橡胶材料,其聚合单体为乙烯醋酸乙酯(EVA),与丙烯酸酯橡胶在耐介质、耐高温性能上十分接近。它的市场价格与国产丙烯酸酯橡胶相当,且加工工艺性能好,可大量充填,粘着性好。因而是一种理想的丙烯酸橡胶的替代品,在输送带的应用中也具有良好的前景。
(3) EVA is a new type of rubber material. Its monomer is Eva, which is very close to acrylate rubber in medium resistance and high temperature resistance. Its market price is similar to that of domestic acrylic rubber, and its processing performance is good. It can be filled in large quantities and has good adhesion. Therefore, it is an ideal substitute for acrylic rubber and has a good prospect in the application of conveyor belt.
(4)氟橡胶具有非常优异的耐高温、耐介质、阻燃等物理机械性能。通常使用的温度可以达到220℃,是其中更好的一种。但氟橡胶价格昂贵,不易大量充填,胶粘性能较差,需要二段硫化,工艺复杂。因此,在没有特殊要求的情况下,它很少用于输送带。
(4) Fluororubber has excellent physical and mechanical properties such as high temperature resistance, medium resistance and flame retardancy. Generally, the temperature can reach 220 ℃, which is the best one. However, fluororubber is expensive, difficult to fill in a large amount, poor adhesive properties, need two-stage vulcanization, and the process is complex. Therefore, in the absence of special requirements, it is rarely used for conveyor belt.
(5)联炭三元乙丙橡胶一种炭黑化包覆三元乙丙橡胶,即在合成三元乙丙橡胶时,将20%~30%的炭黑加入其中,使其分子均匀地包覆在橡胶分子表面。由于其独特的合成方法和结构,该EPDM材料的耐高温性能比普通EPDM材料有更好的表现。从上面的表格可以看出,它在180℃的温度下仍能保持良好的性能,而且价格低廉,物理机械性能优良。其另一大特点是胶体为分散颗粒状,用于捏炼生产,分散速度快,能提高生产效率。不利之处是已有炭黑填充,因此不能再大量地填充炭黑,粘附性也较差。
(5) Ethylene propylene diene monomer (EPDM) is a kind of carbon black coated EPDM. In the synthesis of EPDM, 20% ~ 30% carbon black is added to make its molecules uniformly coated on the surface of rubber molecules. Due to its unique synthesis method and structure, the high temperature resistance of the EPDM material is better than that of ordinary EPDM material. It can be seen from the above table that it can still maintain good performance at 180 ℃, and has low price and excellent physical and mechanical properties. The other characteristic is that the colloid is dispersed granular, which can be used in kneading production with high dispersion speed and high production efficiency. The disadvantage is that the carbon black has been filled, so it can not be filled with a large amount of carbon black, and the adhesion is poor.
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