Compatibilizer/chain extender for degradable materials

Model No.: BP-5

lntroduction:

BP-5 is a highly efficient chain extender for biodegradable plastics. With an extremely low addition amount of 0.2%-0.5%, the melt index of biodegradable materials can be effectively reduced.

Chain extenders are typically used to increase the molecular weight of a polymer by reacting with the polymer's functional groups. This can lead to improved mechanical properties, such as increased strength and toughness, as well as improved processability.

In the case of degradable materials, such as biodegradable plastics, chain extenders like BP-5 can help to improve their properties and make them more suitable for a wider range of applications. For example, by improving the tensile strength of a degradable material, it may be possible to use it in applications where it needs to withstand more stress or strain, such as packaging materials or agricultural films.

It's also worth noting that the use of chain extenders like BP-5 in degradable materials may help to improve their overall sustainability by allowing them to be used in a wider range of applications and potentially reducing waste.

INQUIRY

Description
Characteristic
Applications
Q& A
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Description

BP-5 is a chain extender for degradable materials, which can expand the length of molecular chains and improve the tensile strength of materials.

Characterisitic

BP-5 is a chain extender and nucleating agent for degradable polyester materials, which can accelerate the cooling and molding speed of materials.

Characteristics	Value	Unit	Test Method
Appearance	Powder
Color	White
True Density	2.1-2.4	g/cm3	ASTM D792
Bulk Density	0.7-1.1	g/cm3	ASTM D792
Polar oxygen group content	2.3-2.7	wt%	COACE Method[1]
Loss on drying	≤0.3	%	105℃,10min

Applications

BP-5 Improve the viscosity of polyester materials, improve the tensile strength of films and sheets, and resist puncture

Typical application:

Formula type	PBAT filling			PBAT+PLA filling		PBS filling
Formula type	1#	2#	3#	4#	5#	6#	7#
PBAT	70%	70%	70%	60%	60%	⸺	⸺
PLA	⸺	⸺	⸺	10%	10%	⸺	⸺
PBS	⸺	⸺	⸺	⸺	⸺	70.0%	70.0%
BP-5	⸺	0.3%	0.5%	⸺	0.5%	⸺	0.5%
calcium carbonate	30.0%	30.0%	30.0%	30.0%	30.0%	30.0%	30.0%

Performance list	PBAT filling			PBAT+PLA filling		PBS filling
Performance list	1#	2#	3#	4#	5#	6#	7#
Tensile strength Mpa	13.7	14.7	15.7	12.5	14.5	28.3	32.8
Nominal strain at break%	400.0	237.0	206.0	393.0	382.0	36.8	32.6
Melt index（190℃/2.16kg）	2.63	1.30	0.90	3.50	2.69	9.14	1.32
Notched Impact StrengthJ/m	⸺	⸺	⸺	⸺	⸺	81	88

It can be seen from the above table that BP-5 is an efficient biodegradable plastic chain extender. At a very low addition amount of 0.2%-0.5%, the melt index of biodegradable materials can be effectively reduced, and it can be seen that it has a significant chain extension effect on biodegradable plastics.

Recommended dosage

0.2-0.5%, which can be increased or decreased in moderation according to the actual application, taking into account the cost.

Packaging and Storage

20KG kraft paper bag lined with plastic bag, as non-dangerous goods, avoid sunlight and rain.