Pharmaceutical PVC/PE composite hard sheet is a material specifically used in the field of pharmaceutical packaging. It is made by compounding polyvinyl chloride (PVC) and polyethylene (PE), and has the characteristics of rigid support, good sealing performance and barrier properties. It is often used in blister packaging of pharmaceuticals (such as tablets and capsules) or packaging of some medical devices. It can effectively protect the contents from contamination, moisture and oxidation, ensuring the stability of pharmaceuticals or devices within the shelf life.With detailed characteristics and applications as follows:

Core Characteristics

1) Rigidity and Formability: The PVC layer provides good rigidity and stiffness, allowing it to be thermoformed into specific shapes (such as blisters, trays) to structurally support internal drugs or devices, preventing damage from extrusion during transportation and storage.

2) Sealability and Barrier Properties: The PE layer has excellent heat-sealing performance. When combined with materials like aluminum foil, it forms a tight seal, effectively blocking moisture, oxygen, dust, and microorganisms. This prevents drugs from getting damp, oxidizing, or being contaminated, extending their shelf life.

3) Safety: Complies with pharmaceutical-grade material standards, undergoing rigorous purity testing (e.g., controlling heavy metals and harmful additive residues). It ensures no migration of substances when in direct contact with drugs, avoiding impact on drug stability.

4) Sterilization Compatibility: Can withstand common pharmaceutical sterilization methods (such as ethylene oxide sterilization, radiation sterilization) while maintaining structural and performance stability after sterilization, meeting sterile packaging requirements.

Main Application Scenarios

1) Pharmaceutical Blister Packaging: One of the most common packaging forms for tablets and capsules. The hard sheet is thermoformed into individual "blisters," each holding a single dose of medication, then heat-sealed with aluminum foil to form sealed units. The rigidity of the PVC layer prevents blister deformation, protecting the drug's shape; the PE layer enhances sealability with aluminum foil, blocking external moisture and oxygen to ensure drug stability within its validity period.

2) Medical Device Packaging: Suitable for packaging small sterile medical devices, such as syringes, suture needles, sterile cotton balls, and infusion connectors. After sterilization, the composite hard sheet is combined with other sterile packaging materials (e.g., dialysis paper) to form sealed packaging. It prevents contamination during storage and transportation, features easy-tear design for convenient access by medical staff, and meets sterility testing standards for medical packaging.

3) Drug inner trays and partitioned packaging: In bottled or boxed medicines, it can be used as an inner tray. The formed grooves fix the position of the medicines to prevent them from shaking and colliding inside the bottle (especially suitable for fragile sugar-coated tablets and irregularly shaped tablets). It can also be used for partitioned packaging of multi-dose medicines to achieve independent protection for single doses.

Differences from Ordinary Composite Hard Sheets

The key distinction between pharmaceutical-grade PVC/PE composite hard sheets and ordinary industrial or food-grade counterparts lies in higher safety standards: They must pass national or international pharmaceutical packaging material certifications (e.g., China's pharmaceutical packaging registration certificate, USP, EP standards). Strict controls are imposed on the types and contents of additives (such as plasticizers, stabilizers) in the material to ensure chemical stability, preventing reactions with drugs or release of harmful substances that could affect drug quality.

In summary, this material is a critical packaging solution in pharmaceuticals, balancing protective performance, sealability, and safety, directly related to the storage stability and usage safety of drugs and medical devices.

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In addition to the above content, here is more information about pharmaceutical PVC/PE composite hard sheets:

1) Performance characteristics:

 Barrier properties: The PVC layer can effectively block water vapor, oxygen and light, protect the stability of the contents, and prevent medicines and other substances from deteriorating due to external environmental influences.

 Heat-sealing performance: The PE layer is easy to heat-seal with various sealing materials, which can achieve a good sealing effect, ensure the tightness of the package, and maintain the stability of the internal medicines.

 Mechanical strength: It has a rigid structure, is not easy to deform or break during transportation and storage, and can play a good protective role for medicines and the like.

Transparency: It usually has a certain degree of transparency, which can clearly show the contents and facilitate the observation of the state of medicines.

2) Relevant standards:

According to the standard YBB00202005-2015, it is required to conduct performance tests such as tensile strength, impact resistance, heating shrinkage rate, and heat-sealing strength. For example, the tensile strength requires that the average value in the longitudinal and transverse directions shall not be less than 40MPa; the heat-sealing strength shall not be less than 6.0N/15mm, etc., to ensure that it meets the requirements of pharmaceutical packaging.

3) Product specifications:

The thickness generally includes specifications such as 100/40 microns, and can also be customized; the width is usually 50-1650mm; the inner diameter is generally 76mm; the colors include transparent, colored, transparent blue, etc., and the surface is required to be bright, clean and glossy.

4) Market situation:

China is one of the world's largest producers and consumers of PVC/PE composite hard sheets. The market size is expected to reach about 18 billion yuan in 2025. The packaging industry is its largest application field, accounting for about 40% in 2025, the agricultural field is expected to account for about 30%, and the construction field is expected to rise to about 15%.

5) Advantage comparison:

Compared with glass ampoules, pharmaceutical PVC/PE composite hard sheets have the advantages of good toughness, no breakage, good sealing, safe transportation, and convenient use. Moreover, the cost is only half of that of glass ampoules, and they have great advantages in the packaging of small-dose liquid medicines and other fields.

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