Black Nylon Pan Head Phillips Screws

PA66 plastic raw materials for translucent, white, or black crystalline polymerization polyamide resin, the English name for polyamide, PA for short. Commonly known as nylon (Nylon), it is a macromolecule repeating units in the main chain containing amide groups in the polymer of the general term. For the five engineering plastics in producing the largest, most varieties, the most widely used varieties.

It has plasticity. Density 1.15g/cm3, melting point 252℃. Brittle temperature -30℃. Thermal decomposition temperature greater than 350 ℃. Continuous heat resistance of 80-120 ℃, balanced water absorption rate of 2.5%. Resistant to acid, alkali, most inorganic salt solutions, halogenated alkanes, hydrocarbons, esters, ketones, and other corrosion, but easily tolerated in phenol, formic acid, and other polar solvents. It has excellent wear resistance, self-lubrication, and high mechanical strength. However, the water absorption is more significant, and thus, the dimensional stability is poorer.PA66 has the highest mechanical strength in the PA series and is the most widely used variety because of its high crystallinity, so its rigidity and heat resistance are higher.

Nylon is a joint engineering plastic widely used in machinery, automobiles, electrical appliances, textile equipment, chemical equipment, aviation, metallurgy, and other fields.

Become indispensable structural materials in various industries, its main features are as follows:

1. Excellent mechanical properties. Nylon has high mechanical strength and good toughness.

2. Good self-lubrication and friction resistance. Nylon has good self-lubrication and a small friction coefficient, which is a transmission part of its long service life.

3. Excellent heat resistance. Such as nylon 46 and other highly crystalline nylon, the heat distortion temperature is very high and can be used for an extended period at 150 ° C. PA66 after

After the glass fiber is reinforced, its heat distortion temperature reaches over 250 ℃.

4. Excellent electrical insulation properties. Nylon volume resistance is very high, has high breakdown voltage, and is an excellent electrical insulation material.

5. Excellent weather resistance.

6. Water absorption. Nylon water absorption and saturated water absorption can reach more than 3%. To a certain extent, it affects the dimensional stability of the parts.