How to write the pinyin of transparent glue?

History of adhesive tape:

Transparent adhesive, also known as polyvinylidene chloride.

1928 scotch tape Richard drew, St. Paul, Minnesota, USA

May 30 1928 filed an application in Britain and the United States. Drew has developed a light adhesive that can be pressed immediately. The first attempt was not sticky enough, so Drew was told, "Take this thing back to your Scottish boss and ask them to apply more adhesive!" However, during the Great Depression, people found hundreds of uses of this tape, from mending clothes to protecting broken eggs.

Why can adhesive tape stick things? Of course, it is because its surface is coated with a layer of glue. The earliest adhesives came from animals and plants. In the19th century, rubber was the main component of adhesives. In modern times, various polymers are widely used. Adhesives can stick to things because they form bonds between their own molecules and the molecules of the connected objects, which can firmly stick the molecules together. The composition of adhesive, according to different brands and types, has a variety of polymers.