Bahan-bahan tambahanAkselerator : H

Bahan-bahan tambahan
Akselerator : Hingga tahun 1900-an, vulkanisasi karet masih merupakan proses yang lambat, sehingga lebih banyak sulfur yang digunakan daripada jumlah optimumnya. Waktu curing beberapa jam, oleh karena itu dibutuhkan bahan yang mampu mempercepat proses vulkanisasi. Kalsium, magnesium atau seng oksida (akselerator anorganik) dapat mempercepat proses vulkanisasi. Industri karet mengalami perubahan besar ketika diperkenalkan akselerator organik untuk vulkanisasi. Diantaranya ialah senyawa-senyawa yang mengandung sulfur seperti tiourea, tiofenol, merkaptan, ditiokarbamat, tiuram disulfida ditambah akselerator nonsulfur seperti urea. Selain dengan cara mengawali pembentukan radikal bebas atau dengan mengikat proton, beberapa akselerator dapat bekerja dengan bantuan panas. Beberapa akselerator memerlukan aktivator dalam kerjanya.

Hasil (Inggris) 1:

Additional materialsAccelerator: up to the 1900s, vulcanization of rubber is still a slow process, so that more sulfur is used rather than the number of optimumnya. The curing time is several hours, therefore it takes material that is able to accelerate the process of vulcanization. Calcium, magnesium or zinc oxide (inorganic accelerators) can accelerate the process of vulcanization. Rubber industry experienced a major change when it was introduced for organic vulcanization accelerators. Among them is the compounds containing sulfur as tiourea, tiofenol, ditiokarbamat, tiuram, mercaptan disulfide nonsulfur accelerators such as urea plus. Other than by way of initiating the formation of free radicals or binding with proton accelerators, can work with the help of heat. Some accelerator require the activator in the works.

Hasil (Inggris) 2:

Additional materials
Accelerators: Until the 1900s, the vulcanization of rubber is still a slow process, so that more sulfur is used rather than the optimum amount. Curing time of several hours, therefore it is necessary materials capable of accelerating the vulcanization process. Calcium, magnesium or zinc oxide (inorganic accelerator) to accelerate the vulcanization process. The rubber industry underwent major changes when introduced organic vulcanization accelerator. Among them are compounds containing sulfur such as thiourea, tiofenol, mercaptans, dithiocarbamates, thiuram disulfide accelerator plus nonsulfur such as urea. In addition to the way initiate free radical formation or by binding protons, some accelerators can work with the aid of heat. Some accelerators require activators in its work.