Building A One-Stop Cooperative Procurement Base For Rubber Products
Origin of rubber and composition of rubber sheet
May 20,2020
According to the literature, these balls have excellent elasticity and have led visiting Spaniards to believe that these balls are possessed by evil spirits. Rubber is also used as a strap to tie wooden handles to stone or metal utensils, and as a filler for handles.
Maya uses rubber to make shoes. Although the Central American natives did not formally vulcanize rubber as modern people did, they were able to use organic matter to approximate effects, such as mixing unprocessed emulsions into the sap of different varieties or the sap of some vines.
Some indigenous people in Brazil use rubber to make waterproof fabrics. There was a rumor that the Portuguese had brought these clothes back to their motherland, which frightened their countrymen and resulted in being tried for witchcraft.
After the rubber was introduced to the UK, it was found that the material was very effective in wiping off the marks left by the pencil. So nowadays the English rubber rubber is also used to describe the eraser. Interestingly, today's Americans are used to eraser erasers, but rubber is used to describe condoms.
Natural rubber origin three leaf rubber tree supply the most commercial rubber. It secretes a lot of sap rich in rubber emulsion when it is hurt. In addition, fig trees and some plants of the family Euphorbiaceae can also supply rubber.
Germany tested to obtain rubber from these plants during the Second World War because the rubber supply was blocked, but later changed to produce artificial rubber. The beginning of the rubber tree was good at South America, but through artificial transplantation, now Southeast Asia also has a lot of rubber trees.
In fact, Asia has become the most important source of rubber. Rubber made of silver chrysanthemum glue can be cut sensitive. Although more than half of rubber is now artificial, natural rubber is still very important in some fields, such as automotive and military industries.
Label
Previous Page
Related Hot Spots
How to choose the sealing strip suitable for construction machinery
Oxygen generator silicone tube: a key role in the medical field
The importance of extruded silicone tube in the field of construction and railway
Contact Us
Contact E-mail:
jiexingcyl@chinajiexing.cn
Contact Phone:
+8618632957356
Address:
Changzhuang Development Zone, East of Weixian County, Hebei Province
Contact E-mail
Changzhuang Industrial Zone, Changzhuang Town, Wei County, Xingtai City, Hebei Province
