Oil-filled rubber refers to a mixture of a certain amount of mineral oil filled in rubber, including natural rubber and synthetic rubber. The oil-filled oil can be carried out in natural or synthetic latex, or in dry glue. The former is called wet-filled oil, and the latter is called dry-filled oil. (1) Oil filling purpose…
Trans isomer rubber is an isomer of cis 1.4-polyisoprene. It is well known that natural rubber is cis-isoprene rubber, and natural trans-isoprene rubber (also known as Gutapo or gutta percha) is derived from woody eucommia bark or herbaceous dandelion milk, which is obtained by refining. In addition, isoprene in the C5fraction obtained after petroleum cracking…
Prior to 1964, the international classification of natural rubber grades was based on the appearance evaluation. At that time, natural rubber was divided into 8 varieties with a total of 35 grades. In the early 1960s, the world’s synthetic rubber developed rapidly and began to exceed natural rubber in annual production. In order to cope…
Rubber is an organic polymer material with a molecular weight of several hundred thousand. It is divided into four aspects from other industrial materials: one can maintain high elasticity in a wide temperature range (-50~150 °C; the second is low modulus of elasticity, 3 orders of magnitude lower than ordinary materials, the third is The…
Trans isomer rubber is currently used for a wide range of applications, but there are two main aspects. 1 It has the dual characteristics of rubber and plastic (that is, it is crystalline at room temperature, inelastic, and when the temperature rises to 60 ,, the crystal softens and can be operated on the rubber…