Platic modifier about B2 specification introduce

Model No.: B2

lntroduction:

This is a low odor PP compatibilizer, which meets the requirements of automobile manufacturers for the odor of automobile materials to a certain extent.

B2 is prepared by reactive grafting of maleic anhydride onto polypropylene. Due to the introduction of a strongly polar side group maleanhydride) in the main chain of polypropylene, Therefore, maleic anhydride grafted polypropylene can be a bridge to improve the adhesion and compatibility of polar and nonpolar materials. In the application of PP + glass fiber modification, it can react with the glass fiber after surface treatment, improve the compatibility of the PP and glass fiber, so as to improve the tensile strength and impact strength of polypropylene. When PP compatibilizer is added in the production of filled polypropylene, the compatibility of filler and polypropylene and the dispersion of filler can be greatly improved. This is a low odor PP compatibilizer, which meets the requirements of automobile manufacturers for the odor of automobile materials to a certain extent.

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Description
Characteristic
Applications
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Description

B2 is prepared by reactive grafting of maleic anhydride onto polypropylene.

B2 is a maleic anhydride grafted polypropylene (PP) copolymer, which is commonly used as a coupling agent and compatibilizer in polymer blends containing PP and other polymers such as polyethylene (PE), polystyrene (PS), and ethylene-propylene-diene monomer (EPDM).

The preparation of B2 involves the reactive grafting of maleic anhydride (MAH) onto the polypropylene backbone. This is typically achieved through a melt grafting process, where PP and MAH are melt-blended in the presence of a free radical initiator. The maleic anhydride groups react with the PP backbone to form a grafted copolymer, which has both PP and MAH segments along the polymer chain.

The maleic anhydride functionality on B2 can then react with functional groups on the surface of other polymers in a blend, such as PE or PS, to create a stronger bond between the polymers. This improved compatibility can lead to improved mechanical properties and processing characteristics of the blend.

Characterisitic

Product models	B2
Melting index	80-120
Grafting rate	Medium
density	0.92g/cm³
performance	This produce is propene polymer with functionalized maleic anhydride,which is especially suitable for the reinforcing and compatibilizing of PP mineral fiber and glass fiber

NOTE: The above data are typical test values and should not be interpreted as a specification low < 0.4wt %, medium 0.4-0.8 wt%, high > 0.8wt%

1.Comparison parameters of different applications

Table1:Typical Data of Reinforcing of PP Glass Fiber

Performance	Unit	PP+30%GF	PP+30%GF+5%B2
Tensile strength	MPa	45	80
Flexural strength	MPa	70	120
Lzod notched impact strength (23℃)	J/m	60	110

Table2:Typical Data of Reinforcing of PP Mineral Fiber

Performance	Unit	PP+TD20%	PP+TD20%+5%B2
Tensile strength	MPa	28	33
Flexural strength	MPa	50	60
Lzod notched impact strength (23℃)	J/m	50	40

Note:The data above are all experimental typical values, only for reference .

Suggested dose: 3-10%，the dosemay be increased or decreased properly according to the toughness requirements and by taking the cost into consideration.

Packaging, storage and transportation: 20kg kraft bag with internal plastic bag. This product shall be treated as non-hazardous article and be stored or transported under dry conditions, and sunlight and rain shall be avoided.

Applications

1.Be used as the PP interface modifier for glass fiber reinforcing and mineral filling to increase the tensile strenth and bending strength.

2.Be used as PA/PP or PA/PE alloy compatibilizer.

Product features: Low odor

3 It can be used as a compatibilizer between inorganic reinforcing materials (glass fiber) and filling materials (calcium carbonate, talc, etc.) and PP;

4 Can be used as a compatibilizer for PP / nylon alloy:

5. Can be used as wood-plastic compatibilizer;

6. It can be used to improve the adhesion of PP to polar materials (metal, nylon, etc.).