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A Will Bing Dundun's ice clothes turn yellow? What new chemical materials are hidden in the Beijing Winter Olympics

Company News > A Will Bing Dundun's ice clothes turn yellow? What new chemical materials are hidden in the Beijing Winter Olympics

To say what is the most popular in this year's Beijing Winter Olympics, it must be the mascots Bing Dun Dun and Xue Rong Rong. The naive panda Bing Dun Dun in a space suit and the lantern image Xue Rong with distinctive Chinese cultural characteristics merged into a veritable top-notch at the Winter Olympics. The majority of netizens strongly urged the country to implement one "dun" for each family as soon as possible, and "one for each family". melt"!

What kind of miraculous material created such miraculous products as Bingdundun and Xuerongrong? According to the official flagship store of Olympic Tmall, Bingdun and Xue Rongrong are mainly made of a combination of environmentally friendly PVC, PC, ABS and acrylic polymer materials, with fine workmanship and realistic images. All of these materials have the nature of recycling and environmental protection, which is in line with the Beijing Winter Olympics Organizing Committee's concept of "green, shared, open, and clean".

Many netizens said that the silicone shell of Bing Dun Dun is easy to turn yellow, that is because the polymer material will inevitably be affected by oxygen and light during the production and use process, resulting in yellowing, fading and other aging phenomena. Transparent materials have high light transmittance, so the phenomenon of aging and yellowing will be more obvious. Despite this, it did not affect the netizens' love for Bing Dun Dun, and some netizens even said: "Like a transparent mobile phone case, it is normal to oxidize and turn yellow, and you can add a few more shells with different patterns for Bing Dun Dun to replace. Wear it." "Isn't the wealth code here, you can replace the pier shell: frosted shell, diamond-encrusted shell, gold powder shell... mobile phone shells must have piers!"

"Sustainability, Towards the Future" is a major initiative of this year's Beijing Winter Olympics. The concept of green Winter Olympics and the Winter Olympics of science and technology not only makes people look forward to this feast of ice and snow, but also makes people curious, except for the mascot Bing Dundun And the material of Xuerongrong, what novel chemical materials will appear in this year's Winter Olympics? Which industries and brands can take advantage of this sports event to soar and achieve a new leap?

1. Carbon Fiber Torch

The "flying" shape of the 2022 Beijing Winter Olympics torch swirls and rises like a fluttering ribbon, and finally appears as a flying flame, taking into account both artistic sense and stability, and full of beautiful meaning. Its material pioneered the use of "carbon fiber". The weight of carbon fiber is only about 1/4 of that of steel, but its strength is 7-9 times that of steel. The overall feeling of "Feiyang" is light and firm, and it can avoid the embarrassing situation of freezing hands in winter with metal materials. The torch shell is not only resistant to fire and high temperature, but also resistant to 10-level wind and heavy rain, which is very suitable for use in extremely cold weather. According to the torch design technicians, the use of carbon fiber and resin composite materials to make the Olympic torch is the world's first black tow processed from petroleum products. machine, weaving it into the coat of the torch.

The Beijing Winter Olympics adheres to the concept of "green Olympics", and uses clean and environmentally friendly hydrogen fuel in the choice of torch fuel. The characteristics of hydrogen fuel ensure that the torch can be used in extremely cold weather, but when hydrogen is used as fuel, the combustion temperature will be higher than 800 ℃. In order to be able to use carbon fiber composite materials for the shell of the torch, after many efforts, it took more than three months to successfully solve the application bottleneck of carbon fiber composite materials under extreme conditions. Huang Xiangyu, deputy general manager of Sinopec Shanghai Petrochemical Company, mentioned in an interview that the fire of the torch is burned from the inside, and ordinary composite materials cannot be burned in the fire. A company in Shanghai has developed a refractory resin. After repeated The test analysis and process adjustment have met the requirements of both temperature resistance and fire resistance, and finally realized the normal use of the torch shell in a hydrogen fuel environment higher than 800 ℃, and cracked the torch shell in the high temperature preparation process of 1000 ℃. Bubble, cracking and other problems.

Carbon fiber: Carbon fiber is a high-strength, high-modulus, high-performance fiber material with a carbon content of more than 90%. As a strategic new material with excellent performance, the fiber density is less than 1/4 of steel, but the strength is 7-9 times that of steel. It is now widely used in aerospace, new energy, transportation, sports and leisure and other fields.

2. Speed skating competition suit

Short track speed skating, as an official event at the Winter Olympics, has always attracted attention, and the speed skating competition suits also reflect the technological content everywhere. The speed skating competition suit will choose a rubber material that is dozens of times stronger than ordinary fibers in the thigh, which can minimize physical exertion; a synthetic fiber will be used in the right crotch, which can effectively reduce friction; To reduce air resistance, a cellular-style polyurethane material is used on the hands and feet of the speed skating suit to maximize the athlete's performance.

Polyurethane: Polyurethane refers to the polymer resin formed by the condensation polymerization of basic chemical isocyanate and polyol, and has become an indispensable material in life. The industrial chain of polyurethane materials is long. The upstream raw materials are isocyanates and polyols. Among them, isocyanates are mainly MDI, TDI and PAPI. Polyols can be divided into polyether polyols and polyester polyols. The middle reaches are primary resin products such as plastics, elastomers, adhesives, coatings, fibers, etc. These primary products can then be further processed and utilized in all aspects of life such as shoe sole industry, construction industry, furniture industry, home appliance industry, etc. The specific application forms include wall insulation Materials (rigid foam), sofa fillers (soft foam), spandex (chemical fiber), plastic track (elastomer), adhesives, coatings, etc., these constitute the terminal downstream of the polyurethane industry chain.

Analysis of relevant industries shows that the current polyurethane industry presents an overall trend of upstream oligopoly and downstream structural differentiation. The production of upstream raw materials, especially the production of isocyanates, has high technical and financial barriers, and the industry concentration is relatively high; the development of downstream industries is structurally differentiated, and CASE products (including coatings, sealants, adhesives and elastomers) and Spandex consumption has maintained a steady growth, but foamed plastics, pulp, sole solution products have entered a relatively bottleneck period.

The production and sales of polyurethane in my country has been in a state of continuous growth. In 2019, my country's polyurethane production reached 13.66 million tons, accounting for about 45% of the global total, and the consumption of polyurethane products reached 11.85 million tons. Despite the impact of the epidemic in 2020, Wanhua Chemical still has a net profit of 10.04 billion yuan, and completed a net profit of 6.57 billion yuan in the first quarter of 2021, a year-on-year increase of nearly 300% in the first quarter of 2020. It can be seen that in the polyurethane industry, the head effect is very serious. Due to the barriers of capital and technology, the entry threshold of the industry has been raised, and it has become extremely difficult for emerging companies to enter the market.

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A Will Bing Dundun's ice clothes turn yellow? What new chemical materials are hidden in the Beijing Winter Olympics

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