Rayon is a natural-based material that is made from the cellulose of wood pulp or cotton. This natural base gives it many of the characteristics—low cost, diversity, and comfort—that have led to its popularity and success. Today, rayon is considered to be one of the most versatile and ...
How Is Scuba Fabric Made? The base material of neoprene is chloroprene, which is a colorless monomer. This substance can be made in two different ways; in one process, the base compounds used to make chloroprene are reacted with butadiene, which is derived from petroleum oil. In the other...
Angora wool is primarily used as an apparel material. First popularized as a sweater fabric, this type of wool is also used to make pea coats, suit jackets, scarves, gloves, and a variety of other apparel items. More rarely, Angora wool may also be used to make small throw blankets or...
While the basics of papermaking process has changed very little over the centuries, woodfibre only became the main raw material for mass paper production in the mid-19th century. The key advantage of using woodfibre is that it is a natural renewable resource. Other advantages of using wood ...
Frisbees have been made out of a thermoplastic material called polyethylene since the early 1950s. Polyethylene is the largest volume polymer consumed in the world. This material is derived from ethylene, a colorless, flammable gas. This gas is subjected to elevated temperatures and pressures in ...
The raw plant material is placed in a large vessel filled with water and literally beaten to a pulp to make a thick suspension of fibers called half-stuff. This is formed into sheets of paper using a very basic frame made of two parts: a metal mesh called a mold that sits inside a ...
moving conveyor with sides to create slabstock, or it is injected into a mold. Slabstock is then further modified to the shape of the end product, such as a chair cushion, and molded foam is typically used for automotive or other commercial upholstery or for shock-absorbing packaging material...
Tumbled stones are made in a machine known as a rock tumbler. The most commonly used rock tumbler is a rotary machine that turns a barrel containing the stones, along with abrasive grit, and water, for days and weeks at a time. As the rocks tumble in the barrel, the grains of abrasive...
D) All amenities made accessible to the rich and the poor alike. 外刊来源 标题:When it comes to housing, is bigger really better? 来源:Salon 媒体简介:《Salon》是一家美国在线新闻和文化杂志,成立于1995年。它在数字领域提供...
Throughout the dozens of countries in which the raw material of chocolate (a fruit called cacao) is cultivated, there are dozens more ways in which the fruit, its juice, and the transformed cacao beans have been consumed over the years. Now there's even achocolate sweetened with cacao sugar...