What Is The Diaper Material

The birth of each baby will bring a lot of joy to the family. Babies are important members of the family, so every article of daily use selected for the baby must be strictly screened. The baby's diapers also need to be strictly screened. There are many types of diapers on the market now. If they are not selected properly, they will cause great harm to the baby's small farts. So, what is the diaper material?

What is the diaper material

The diaper is the daily necessities commonly used by infants, and is the general name of paper diapers, paper diapers and pull pants. The dry diaper can keep the baby sleeping all night. It is commonly known as "diaper" because of its strong water absorption.

Among them, super absorbent resin (SAP for short) is an excellent material for making baby diapers, which is made of starch and acrylate as the main raw materials; The outstanding feature is that the water absorption and storage capacity are amazing

Basic introduction

Super absorbent resin (SAP for short) is an excellent material for making baby diapers. It is made of starch and acrylate as the main raw materials. The outstanding feature of "diaper" is that the water absorption and storage capacity are amazing. It absorbs physiological saline 40~60 times of its own weight and purified water 50~100 times of its own weight. Therefore, children do not need to worry about wetting their pants when urinating. The urine will be completely "drunk" by them, commonly known as "wet urine".

Origin of diapers

In 1961, Soviet cosmonaut Gagarin felt urgent when he was about to enter the launch capsule, so he had to come down and urinate along the tubes of his spacesuit; In the same year, American astronaut Shepard, who was unable to launch in his spaceship, also suffered from urgency of urination. The commander ordered him to urinate in his spacesuit.

In the 1980s, Tang Xinyuan, the "father of space suits", a Chinese, improved the space suit to solve the problem of urination of astronauts. He added polymer absorbers and invented a paper diaper that can absorb 1400ml of water. Urine is no longer a problem for astronauts. The technology was later converted to civilian use, which is now the "diaper" used by thousands of households.

Super absorbent resin

Superabsorbent resin is a newly developed functional polymer material with strong hydrophilic groups and a certain degree of crosslinking. The water absorption capacity of previously used adsorption materials, such as paper, cotton and hemp, is only 15-40 times of its own weight (referring to deionized water, the same below), and the water retention capacity is also quite poor. In the mid-1970s, the Research Center of the United States Department of Agriculture first developed a super absorbent resin. Since then, various types of super absorbent resins have emerged. These resins are insoluble in water and organic solvents. They can absorb hundreds to thousands of times of their own weight of water, and have strong water retention. Even pressurized water will not be squeezed out, which has attracted the attention of countries around the world. The industrial production capacity of super absorbent resin continues to expand, and it is widely used in medical and health care, building materials, environmental protection, agriculture, forestry and food industries.

characteristic

1. High water absorption: It can absorb hundreds or thousands of times of its own weight.

2. High water absorption rate: Each gram of super absorbent resin can absorb hundreds of grams of non-ionic water in 30 seconds.

3. High water retention: water is not easy to be squeezed out of the gel after water absorption under external pressure.

4. High expansion: the volume of super absorbent resin gel after water absorption will expand hundreds of times.

5. Ammonia absorption: low cross-linked polyacrylate type super absorbent resin contains carboxyl anions in its molecular structure, which can be absorbed when encountering ammonia and has obvious deodorization effect.