Biodegradable Compostable Plastic
Like natural materials such as paper, cotton, and wood, Bionolle™ is stable in normal conditions but decomposes into water and carbon dioxide. Bionolle™ biodegrades in compost, activated sludge, soil, rivers, and oceans. When Bionolle™ is incinerated, the heat of combustion and the generation of carbon dioxide are about one half and two thirds of conventional polyolefins respectively. Conventional plastics remain in nature permanently at various stages and have caused many environmental issues. Additionally, separation and processing of plastics is costly and time consuming. We believe biodegradable plastic Bionolle™ is an effective tool in combating these global challenges.
Please Visit Our Bionolle Starcla™ Page
Bionolle Starcla is a fully compostable hybrid of Bionolle™, PolyLactic Acid(PLA), and Starch.
Bionolle is a thermoplastic aliphatic polyester polymerized from glycols and aliphatic dicarboxylic acids. The main molecular structure of this compostable and biodegradable resin is shown below:
H-[-0-(CH2)4-0- (CO- (CH2) m-CO-)-] N-OH
m=2: Bionolle™ 1000 series; m=2, 4: Bionolle™ 3000 series. Grades of Bionolle™ 1000 series are poly butylene succinate (PBS) and grades of Bionolle™ 3000 series are polybutylene succinate adipate (PBSA).
Bionolle can cover a wide range of applications due to its range of properties. Low MFR (melt flow rate) grades can produce sheets, films, and bottles, while high MFR grades can be used for lamination extrusion, injection molding, and fiber extrusion. Grades containing long chain branches show high melt strength and are suitable for foamed products. The Bionolle™ 1000 series (PBS) shows high modulus and slow biodegradability while the Bionolle™ 3000 series (PBSA) shows low modulus and fast biodegradability. By blending the proper materials, rigidity and biodegradation speed can be controlled. Bionolle™ shows good resistance to water, aliphatic hydrocarbons, castrol oil, mineral oil, turpentine oil, salad oil, etc. However, Bionolle™ undergoes hydrolysis under acid and base conditions. Products made of Bionolle™ will show low oxygen permeability but high permeability to steam and alcoholic vapor. A small amount of oligomer remains in Bionolle™ and it could move to products' surface. For applications which plate-out causes problems, we produce purified grades which have # on the first character of the grade names (e.g., #1001 and #3001). By a purification process, the amount of oligomer in purified grades is about one-third of that in general grades.
|Heat of combustion||KJ/g||23.6||23.9||43.9||46.0|
|H.D.T. (at 0.45 MPa)||97||69||145||110||88|
|Degree of crystallinty||%||35∼45||20∼35||56||69||49|
|Melting point (Tm)||114∼115||93∼95||164||130||108|
|Glass transition temperature||-32||-45||+5||-120||-120|
|MFR (190℃, 2.16kg)||g/10min.||1.5||25||4.5||1.4||25||4 (230℃)||2||2|
|Tensile yield strength||MPa||32||34||39||19||19||31||27||12|
|Tensile break strength||MPa||57||21||35||47||34||44||39||35|
Conventional forming equipment for polyolefins or with minor modification can be used for Bionolle™. The recommended processing temperatures are 160 - 230℃. Table 2 shows ranges of MFR, grades and applicable processing methods. Table 2 - MFR @ 190℃/2.16kg.
|MFR||1000 seris||3000 seris||Applicable processing methods|
|1∼3||1001MD||3001MD||Blown film, mono-filament, blow molding, sheet, flat yarn|
|2∼9||1903MD||-||Foamed sheet, extrusion coating, uses for additive|
|20∼34||1020MD||3020MD||Injection molding, staple fiber|
Bionolle has not only received the Japanese Bioplastic Association (JBPA) "GreenPla" label, but also has obtained the "OK Compost" label by AIB-Vincotte (AVI), and the DIN CERTCO certifications. This polymer is fully compostable.
(1) Bionolle™ has not been approved for use in medical, cosmetic or food contact applications. Please be sure to contact our sales person in advance in case of using Bionolle™ for those applications. (2) Rates of biodegradation vary largely by the surrounding environment and Bionolle™ may undergo hydrolysis by moisture in the air. Consequently, the mechanical properties will be deteriorated. Customers and users are requested to make their own independent determination that the products are suitable for the intended use.