Editor’s Note: Although stainless steel water bottles are far more environmentally friendly than Tritan water bottles and are more beneficial to health, Tritan bottles are accepted by some people because the Tritan bottles are slightly cheaper. To know more about stainless steel water bottles, please read the article: 316 and 304 Stainless Steel: a Far More ECO Friendly Water Bottle Material. To know more about comparison of various reusable water bottle materials, please read the article: Reusable Water Bottle: Facts and Benefits.
Plastic water bottles are one of the more common types of bottles in life. Everyone is familiar with them. The safety of plastic bottles has always been questioned by people. So although plastic bottles can be seen everywhere, many people are afraid to use plastic materials. The bottle, whether it is a PC plastic bottle or a pp plastic bottle; Until the appearance of the Tritan material, the plastic bottle is truly accepted by people!
The advantages of Tritan material are many, such as its durability. Tritan material has the impact strength comparable to PC material, toughness, durability, and the transparency of Tritan material is not inferior to glass, with crystal-like luster. It is also resistant to dirt and is not prone to odor; of course, the biggest advantage of Tritan material is its safety. Compared with PC and pp materials, Tritan material does not contain Bisphenol-A and Bisphenol-S and any Bisphenol substances. It is completely safe to use, so if someone asks something like: Is it safe to use Tritan bottle? We can definitely answer: yes, it is very safe whether it is hot water or cold water.
Tritan’s full name: Tritan Copolyester, a new generation of copolyester developed by Eastman.
Due to people’s pursuit of quality of life and health, the market’s environmental requirements for plastic raw materials are also increasing. For example, PC will produce BPA (bisphenol-A) after hydrolysis. Recent studies have shown that humans (including animals) such as long-term intake of trace amounts of BPA are highly likely to have adverse effects on the reproductive system and undermine the gender balance, so some countries have restricted or disabled PCs. In the face of environmental pressures, manufacturers are looking for materials that can replace PCs. In this market context, Eastman has developed a new generation of copolyester Tritan.
Application
Since the early days of household goods and the application of small household appliances, more fields have been developed around 2014, including applications such as baby products, medical, cosmetics, outdoor, and some applications are under development.
Safety
Tritan is approved by the Food and Drug Administration (FCN) No. 729 for the design of materials for baby products in Europe and America.
According to the National Standard of the People’s Republic of China GB-4806.6–2016, which was implemented on April 19, 2017, it was approved as a plastic resin for food contact, dimethyl terephthalate and 1,4-cyclohexanedimethanol. Polymer of 2,2,4,4-tetramethyl-1,3cyclobutanediol, approved for use in environments up to 100℃.
Advantage
1). BPA free
Tritan has no BPA in the polymerization process and does not release BPA during use, meeting environmental requirements and the FDA.
2). Clear and transparent
Light transmittance >90%, haze <1%, crystal-like luster.
3). Excellent impact strength
There is no gap impact, and the notched impact strength is between 650-980J/m due to the grade, which is comparable to the impact strength of PC.
4). Excellent resistance to hydrolysis and hydrolysis
Tritan is resistant to corrosion by detergents, detergents, hydrocarbon solvents, oils, perfumes, etc.; it is resistant to hydrolysis in hot, humid environments.
5). High temperature resistance
The low pressure heat distortion temperature (HDT @ 0.455MPa) is between 94 °C and 109 °C depending on the grade.
6). Good mobility
The test conditions are 2.16 kgf pressure and 280 ° C melt temperature. The melt index (MI) is between 15.3 and 29.5 depending on the grade.
7). Easy molding processing
Tritan’s grades can be processed by various methods such as injection molding, extrusion, extrusion (EBM), and injection blow molding (ISBM). In general, molds that can be produced normally using PCs can be produced with Tritan? without modification, and the production cycle times are very close.
8). Easy secondary processing
The secondary processing methods that Tritan can be applied to include: UV glue bonding, ultrasonic welding, surface printing, surface vacuum plating, etc.
9). Small residual stress of the product
After injection molding, the residual stress of the product is smaller than that of PC, and no subsequent annealing is required. Tritan manufactures products that are more durable due to less chance of cracking due to residual stress during use.
Of course, there is no perfect thing in the world. Tritan material also has a small disadvantage, that is, its temperature resistance, the temperature resistance of Tritan material is -10~96 °C, and the temperature is too high, which may cause the deformation of the bottle of Tritan material. There is no way, this is the characteristics of the material, just like the glass material bottle has a strong thermal conductivity and fragile, but in addition, the Tritan material has no other disadvantages, so we should pay attention to When using a Tritan bottle, be sure to pay attention to the temperature of the water. Do not overheat the water.
KingStar is a manufacturer specializing in the production of stainless steel water bottles. Our main products are stainless steel water bottles, travel mugs and coffee mugs. All bottle lid material of the insulated stainless steel water bottles is also using Tritan material as much as possible.
