Tie Layer Resins for Adhesion for Multilayer Co-Extrusion Barrier Packaging

• Morphology: Solid-State
• Application: Automobile, Construction
• Classification: Hot Melt
• Main Agent Composition: Thermoplastic Resin
• Characteristic: Weatherability
• Composition: Organic Material
• Model NO.: AD428
• Color: White
• Density: 0.92
• Melt Flow Index(190ºC/2.16kg): 2.1
• Melting Point: 116
• Vicat Softening Point: 105
• Transport Package: Pallet
• Specification: 1.5ton/pallet
• Trademark: Hunthumber
• Origin: Dalian, China
• HS Code: 3506919090
• Production Capacity: 3000mt/Year

Product Description

 

 

Product Description

Hunthumber™ AD428  resins are acid-anhydride-modified polyolefin resins. They are available in pellet form for use in the conventional extrusion and coextrusion equipment designed to process polyethylene (PE) resins. 

Hunthumber™ AD428 is a grade with a higher level of anhydride modification, primarily intended for use as a component in blends with other polyolefin resins. It is not suitable for extrusion in its pure form during typical extrusion or coextrusion processes.

 

Product Parameters

Composition	Ultra High% By Weight Maleic Anhydride Graft levels are defined as: Low< 0.2%; Medium 0.2-0.5%; High 0.5-1 .0%; Ultra high> 1.0%
Characteristics	Hunthumber™ AD428 resin exhibits physical properties similar to linear low-density polyethylene (LLDPE) with similar density and melt index. Use of this adhesive resin in coextruded PE/barrier structures offers improved thermal resistance over that of ethylene vinyl acetate-based adhesive resins.
Applications	Hunthumber™ AD428 resin adheres to a variety of materials. It is most often used to adhere to EVOH, polyamide, PE, and ethylene copolymers. Hunthumber™ AD428 resin can be utilized in the following co-extrusion processes: blown film cast film/sheet blow molding sheet and tubing

 

Properties	Test Method(s)	Typical Value	Unit
Density	ASTM D792      ISO 1183	0.92	g / cm³
Melt Flow Index(190ºC/2.16kg)	ASTM D1238    ISO 1133	2.1	g / 10min
Melting Point	ASTM D3418    ISO 3146	116	ºC
Vicat Softening Point	ASTM D1525    ISO 306	105	ºC
Adhesive Evaluation	The performance of any adhesive resin should be evaluated within the context of the application. The adhesive is designed to bond materials that would not ordinarily adhere to each other. In most cases, peel strength is used as a measure of performance. Although this is a convenient test, peel strength is affected not only by adhesion but also by factors such as peel angle, separation rate, temperature, and tensile and modulus properties of the materials, and often by the time elapsed since the formation of the bond. Post-treatment of the multi-layer structure, such as heat sealing, thermoforming, or orientation, can also affect peel strength.

 

Maximum Processing Temperature

260°C(500°F)

General Processing Information

In coextrusions with thermally sensitive resins such as EVOH or EVA, we suggest that the maximum melt temperature be limited to 235°C (455°F) to guard against overheating the EVOH or EVA. If adhesion results are adequate, we suggest evaluating even lower melt temperatures such as 210 - 220°C (410 - 428°F). For coextrusion with polyamides or other thermally stable resins, the melt temperature can be higher. We suggest a maximum melt temperature of 260°C (500°F). This should provide acceptable bond strengths and film quality under almost all coextrusion conditions. If adhesion results are adequate, melt temperatures can be lowered. While it is possible to extrude Hunthumber™ AD428 resins as high as 300°C (572°F), such high extrusion temperatures, particularly when coupled with long residence times, may result in some film imperfections. In certain streamlined extrusion operations, where residence times are short, it may be possible to use temperatures higher than 260°C (500°F). In the event of a brief interruption during the extrusion processing, it is essential to operate the screw at a low speed. Prior to extended shutdowns, it is necessary to thoroughly purge the Hunthumber™ AD428 resins from the extruder using polyethylene. During purging, the processing temperature should be maintained without change.

Storage Condition

Hunthumber™ AD428 resins should be stored under dry and cool conditions. Improper storage conditions may cause degradation and have consequences on physical properties of the product.

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Our Advantages

1. Top quality materials with competitive price;
2. Large capacity of stable materials supply;
3. Safety and fast shipment by express/air/sea;
4. Sample order acceptable;
5. Professional and great packing as customized;
6. Convenient payment terms by T/T, Credit Card and online order;
7. Reply inquiries in time