Biodegradable PBD / S-PBD

Shape and types

Biodegradable PBD / S-PBD
S-VD80	S-CPBD

Specification and comparison
	Natural Coconut Drain	Natural Rice Straw Drain	S-CPBD
Shape
Properties	● Vertical drain - Made by arranging 4 strings of coconut rope equally into 2 layers of jute filter and combining each rope with others lengthwise - Width 90mm (±15mm), Thickness 9mm (±1.5mm) ● Horizontal drain - Mat made of two layers of jute filters and five layers of coconut skins - Width 350mm, Thickness 50mm ● Low drain efficiency and poor material properties ● Difficult to control the time for decomposition	● 4 strings of rice straw of which average diameter is 7.8mm are used as a core of the drain and covered with jute filter, so the entire width is 90mm ● Made by plaiting 5 strings of rice straw of which the average diameter is 7.8mm, a circular-type drain is also available ● Low drain efficiency and poor material properties ● Difficult to control the time for decomposition	● Conventional vertical drain shape available - Width 100± 5mm, Thickness 4.0 ± 0.5mm ● Depending on which mold is used, different types of drain can be produced – cylindrical type, uneven type, harmonica-shaped type, double-core type, etc. ● Able to control the decomposition time with controlling the amount of biodegradable materials ● High drain efficiency and excellent material properties

● The board drain will be decomposed after concluding its task to preserve the ground environment.

< Decomposition of degradable PBD >

● It is able to control the amount of degradable materials due to its high efficiency for mixed use with conventional PP.
● Turns pollution sources into solids in order to keep the sources from spreading or eliminate them.

● Cheaper than other natural materials like rice straw, cocoa, or jute
● It is able to control the amount of degradable materials due to its high efficiency for mixed use with conventional PP, so price adjustment is available.
● The property of the material is superior to conventional natural drain, and it shows high efficiency for water drain against high earth pressure.
● Applicable both for vertical and horizontal drain
● It can be used to clean the ground with its natural zeolite.
● Lightweight, flexible, and easy for use in construction. It can be constructed with conventional PBD gears.