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Meco Bags Co., Ltd
Add:No. 8, Jinxing Road (M.), Qianku Town, Cangnan County, Wenzhou City, Zhejiang Province, China
Tel:+86-577-59867987
Fax:+86-577-59867997
Phone:+86-15858783512
E-mail:sales@mecobags.com

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The Characteristic Performance Of Pvc Plastic Bag

Meco Bags Co.,Ltd | Updated: Oct 19, 2017

The characteristic performance of pvc plastic bag

PVC (polyvinyl chloride) chemical and physical properties Rigid PVC is one of the most widely used plastic materials. PVC material is a non-crystalline material. PVC materials in the actual use of often added stabilizers, lubricants, auxiliary processing agents, colorants, impact agents and other additives.

PVC material with non-flammability, high strength, weather resistance and excellent geometric stability. PVC has a strong resistance to oxidants, reducing agents and strong acids. However, it can be concentrated oxide acid such as concentrated sulfuric acid, concentrated nitric acid corrosion and does not apply with aromatic hydrocarbons, chlorinated hydrocarbons in contact with the occasion.

PVC melting temperature during processing is a very important process parameters, if this parameter will lead to improper decomposition of the material. PVC flow characteristics are quite poor, the process range is very narrow. In particular, large molecular weight PVC materials are more difficult to process (this material is usually added to the lubricant to improve the flow characteristics), so are usually used are small molecular weight PVC material. PVC shrinkage is quite low, generally 0.2 to 0.6%.

Injection molding process conditions

Melting temperature: 185 to 205 ° C Mold temperature: 20 to 50 ° C

Injection pressure: up to 1500bar Holding pressure: up to 1000bar Injection speed: In order to avoid material degradation, generally use a considerable injection speed.

Runners and gates: All conventional gates are available. If smaller parts are machined, it is advisable to use needle tip gates or submersible gates; for thicker parts, it is best to use fan-shaped gates. The minimum diameter of the needle tip or submersible gate shall be 1 mm; the thickness of the fan gate shall not be less than 1 mm.

Typical use of water supply pipes, household pipes, housing wall panels, commercial machine shell, electronic products packaging, medical equipment, food packaging.

Meco Bags Co., Ltd
Add:No. 8, Jinxing Road (M.), Qianku Town, Cangnan County, Wenzhou City, Zhejiang Province, China
Tel:+86-577-59867987
Fax:+86-577-59867997
Ph:+86-15858783512
E-mail:
sales@mecobag.com
Web:www.mecobag.com