-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Professor Wang Shiqing from the College of Polymer Science and Polymer Engineering at the University of Akron in the United States has made important progress in sustainable bioplastics
.
? Professor Wang Shiqing and his team have been committed to researching the transformation of brittle polymers into tough and flexible polymers
.
The team recently developed a new type of polylactic acid (PLA) cup
.
This kind of cup has good transparency, good toughness, and does not shrink when filled with boiling water
.
? "Now, plastics have become an important part of our daily lives.
Since most plastics cannot be recycled, they will accumulate in landfills," said Professor Wang Shiqing.
"But some promising biodegradable materials, such as PLA, because of its fragility, is usually difficult to replace high-molecular-weight polymers using fossil fuels as raw materials, but this new type of PLA cup that has just been developed overcomes this difficulty
.
"? Professor, Department of Chemical Engineering and Materials Science, Michigan State University Famous plastic scientist Dr.
Ramani Narayan commented on the latest results of Professor Wang Shiqing’s team: “PLA is the world’s most important 100% bio-based and fully compostable polymer, but it has poor toughness and lower heat distortion temperature.
140°F (60°C) will be softened and structurally damaged, which makes it unusable in many hot food packaging and disposable containers
.
However, Professor Wang's research still maintains stable performance at this temperature
.
This result may become PLA An important breakthrough in the market
.
” In order to explain how this PLA cup improves flexibility and heat resistance, Professor Wang Shiqing used cooked pasta as an analogy
.
If the molten PLA is magnified one million times, each chain molecule looks like a pile of spaghetti, several meters in length
.
To make PLA tough, the key is not to destroy the interwoven structure of "spaghetti" during the crystallization process
.
? Professor Wang Shiqing calls this interwoven structure a "chain network"
.
During operation, the experimental team needs to limit the PLA crystals to the nanometer level while keeping this chain-like network from being damaged.
.
This structure can ensure that the PLA beverage cup is transparent, strong and heat-resistant in terms of physical properties
.
? This kind of transparent cup can hold hot tea and coffee, and can replace most plastic beverage cups on the market
.
Professor
Wang Shiqing said: "Our new research results may bring about a double growth of the PLA packaging market .
" (This article is compiled from phys.
org)
.
? Professor Wang Shiqing and his team have been committed to researching the transformation of brittle polymers into tough and flexible polymers
.
The team recently developed a new type of polylactic acid (PLA) cup
.
This kind of cup has good transparency, good toughness, and does not shrink when filled with boiling water
.
? "Now, plastics have become an important part of our daily lives.
Since most plastics cannot be recycled, they will accumulate in landfills," said Professor Wang Shiqing.
"But some promising biodegradable materials, such as PLA, because of its fragility, is usually difficult to replace high-molecular-weight polymers using fossil fuels as raw materials, but this new type of PLA cup that has just been developed overcomes this difficulty
.
"? Professor, Department of Chemical Engineering and Materials Science, Michigan State University Famous plastic scientist Dr.
Ramani Narayan commented on the latest results of Professor Wang Shiqing’s team: “PLA is the world’s most important 100% bio-based and fully compostable polymer, but it has poor toughness and lower heat distortion temperature.
140°F (60°C) will be softened and structurally damaged, which makes it unusable in many hot food packaging and disposable containers
.
However, Professor Wang's research still maintains stable performance at this temperature
.
This result may become PLA An important breakthrough in the market
.
” In order to explain how this PLA cup improves flexibility and heat resistance, Professor Wang Shiqing used cooked pasta as an analogy
.
If the molten PLA is magnified one million times, each chain molecule looks like a pile of spaghetti, several meters in length
.
To make PLA tough, the key is not to destroy the interwoven structure of "spaghetti" during the crystallization process
.
? Professor Wang Shiqing calls this interwoven structure a "chain network"
.
During operation, the experimental team needs to limit the PLA crystals to the nanometer level while keeping this chain-like network from being damaged.
.
This structure can ensure that the PLA beverage cup is transparent, strong and heat-resistant in terms of physical properties
.
? This kind of transparent cup can hold hot tea and coffee, and can replace most plastic beverage cups on the market
.
Professor
Wang Shiqing said: "Our new research results may bring about a double growth of the PLA packaging market .
" (This article is compiled from phys.
org)
