Introduction to NORYL PPO:
Polyphenylene ether (PPO), also known as polyphenylene ether b in Chinese, is one of the five general-purpose engineering plastics in the world. It has the advantages of high rigidity, high heat resistance, flame retardant, high strength and excellent electrical properties. In addition, PPO also has the advantages of wear resistance, non-toxicity and pollution resistance. The dielectric constant and dielectric loss of PPO are one of the smallest varieties among engineering plastics, and they are hardly affected by temperature and humidity. It can be used in the fields of low, medium and high frequency electric fields (the smaller the dielectric constant, the better the insulation). The load deformation temperature of PPO can reach above 190°C, and the desalination temperature is -170°C. (PPO or PPE) is also called polyphenylene oxide, and its chemical name is poly 2,6-dimethyl-1,4-phenylene ether. It is a linear polymer made of 2,6-dimethylphenol through oxygen and oxidative condensation reaction under the action of a catalyst.
NORYL PPO WCA901 Properties:
Flame retardant, good flexibility, good processability, halogen-free.
NORYL PPO WCA901 Application:
Application of wire and cable.
NORYL PPO Material Properties:
1. Good overall performance, can be used in 120-degree steam, good electrical insulation, low water absorption, but tends to stress cracking. Modified polyphenylene ether eliminates stress cracking.
2. It has outstanding electrical insulation, excellent water resistance, and good dimensional stability. Its dielectric properties rank first among plastics.
3. It has high heat resistance, the glass transition temperature is 211 degrees, the melting point is 268 degrees, and it has a tendency to decompose when heated to 330 degrees. The higher the content of PPO, the better the heat resistance, and the heat distortion temperature can reach 190 degrees. .
4. Good flame retardancy, self-extinguishing, moderate flammability when mixed with HIPS. Lightweight, non-toxic and can be used in food and pharmaceutical industries. The light resistance is poor, and it will change color when used in the sun for a long time.
NORYL PPO Formability:
1. Non-crystalline material with low moisture absorption.
2. The fluidity is poor, similar to Newtonian fluid, the viscosity is sensitive to temperature, and the thickness of the product is generally above 0.8 mm. It is easily decomposed and produces corrosive gas when decomposed. The molding temperature should be strictly controlled, the mold should be heated, and the gating system should have small resistance to material flow.
3. The water absorption rate of polyphenylene ether is very low, about 0.06%, but a small amount of moisture will cause silver threads and other roughness on the surface of the product. It is best to dry it, and the temperature should not be higher than 150 degrees, otherwise the color will change. .
4. The molding temperature of polyphenylene ether is 280-330 degrees, and the molding temperature of modified polyphenylene ether is 260-285 degrees.
NORYL PPO USES:
Pure PPO material has the disadvantages of poor melt fluidity and high price. The products sold in the market are all improved products with excellent comprehensive performance. They are widely used in:
Electronic and electrical: It can meet the requirements of excellent electrical insulation under the conditions of humidity, load and high temperature. It is used to prepare TV product tuning chips, coil cores, microwave insulation parts, shielding sleeves, high-frequency printed circuit boards, and various High-voltage electronic components, TV sets, computers, fax machines, copier casings, etc.
Automotive industry: suitable for instrument panels, window frames, shock absorbers, pump filters, etc.
Mechanical industry: used as gears, bearings, pump impellers, blower impellers, etc.
Chemical industry: used to make corrosion-resistant parts such as pipelines, valves, filters and submersible pumps.
The following are the physical properties of Saudi-SABIC plastic NORYL PPE/PS WCA901
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