I can't easily think of other materials that act like that!
2006-07-24 09:02:17 · 6 answers · asked by disintegrationisthebestalbumever 2 in Science & Mathematics ➔ Engineering
Paper fibers are super compressed and very porus. When moist, the fiber's internal structure is overloaded and saturated with the water, and it becomes weak and fragile. Unlike the first answerer stated, It is not held together with glue. 2-ply or thicker paper is squeezed together between rollers. A very good and analytical question, as well as questioner :). You are also very obsrvant. When it is dry again, it loses it's saturation and is ready to hold more weight. I hope that I was able to help you out!
2006-07-24 10:01:39 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Paper is indeed made from individual wood fibers that interlock during pressing and drying. When paper is re-wetted, the fibers swell and the interlocking of the fibers is lessened, thus making it easier to tear. Re-drying the paper will restore the interlocking of the fibers, although not to the extent of their original bond.
2006-07-24 10:13:32 · answer #2 · answered by Jeffrey S 6 · 0⤊ 0⤋
Paper fibers are held together by glue. When the glue gets wet it loses it's adhesion properties to the paper fibers. When the paper dries the glue dries as well and the bond in reinforced.
2006-07-24 09:06:10 · answer #3 · answered by cirestan 6 · 0⤊ 1⤋
water is used in the making of paper, so you could say that water is a solvent of paper..
Try this- Take a newspaper sheet and try to tear it from side to side, then try top to bottom. It will tear in a straight line one way because of the way it is made.
2006-07-24 09:07:25 · answer #4 · answered by wildbill05733 6 · 0⤊ 0⤋
Wood, cotton, wool are among many materials that weaken when wet.
2006-07-24 12:10:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋
u need hobbies :)
2006-07-24 09:10:11 · answer #6 · answered by efdwef bghihlh 1 · 0⤊ 0⤋