Ten Typical Wear-resistant Plastics

August 08, 2024

What is wear-resistant plastic

Wear-resistant plastics belong to a kind of polymer materials, can withstand long-term wear and friction without significant wear, usually used in mechanical parts and equipment that need to withstand high wear and high friction.

Currently the best wear resistance or special engineering plastics PI PAI PEEK material, in addition to PEEK in recent years due to the gradual reduction in price, the other two materials are expensive and difficult to use on a wide scale. Secondly, wear-resistant performance is better engineering plastics nylon pa12, pa11, pa46, Pa66, POM , etc., followed by PE PET , etc.

The most widely used is the series of engineering plastics pa66 and pom nylon and POM are commonly used wear-resistant engineering plastics, POM rigidity is good, good toughness of nylon for the product of the conditions of their own strengths, it's hard to say which one is more wear-resistant. However, from the temperature performance of nylon use a wider range, especially through the modification of the nylon performance to enhance the significant product extension Shen model more than just nylon 66 wear modification model there are hundreds of kinds of more. We design products to choose materials from the actual working conditions demand: product structure, temperature, load, speed, environment, life and so on to find the right material program. Specific choice of nylon or POM more reference to the modified factory's recommendations, so that the product has more performance and cost advantages.

Nylon compound modification by adding wear-resistant agent commonly used way, which add molybdenum disulfide and iron fluoride is more molybdenum disulfide is an important solid lubricant known as the "king of high-level solid lubricants", with a metallic luster, touch with a slippery feeling, insoluble in water, the product has a dispersibility of good, the advantages of non-bonding is particularly suitable for high-temperature and high-pressure work.

PTFE, also known as teflon is commonly known as "Plastic King", is a tetrafluoroethylene as a monomer polymerization of polymers, heat resistance, cold resistance is excellent, can be used for a long period of time in -180 ~ 260 º C. This material has acid and alkali resistance, and can be used for a long period of time. This material is characterized by resistance to acids, alkalis and organic solvents, and is virtually insoluble in all solvents. At the same time, PTFE is characterized by high temperature resistance and it has an extremely low coefficient of friction.

The most wear-resistant PAI plastic

PAI plastic belongs to high-performance plastics, with high mechanical strength, heat resistance and chemical stability, wear-resistant performance is other common wear-resistant plastics can not be compared. In high friction, high load and high temperature environment, PAI plastic can maintain good wear resistance and performance stability, is currently one of the most wear-resistant plastic materials on the market.

Advantages and disadvantages of PAI plastic

1. Advantages: high mechanical strength, excellent heat resistance, good chemical stability, excellent abrasion resistance, good insulation properties, easy processing, molding.

2. Disadvantages: high price, brittle, less flexible.

PAI application areas

PAI plastics are widely used in aerospace, aviation engines, automotive manufacturing, electronics, medical equipment and other fields, such as bearings, gears, pumps, valves, seals and other components and parts that need to withstand high wear and high strength.

PAI plastic is the most wear-resistant plastic material on the market today, with high mechanical strength, excellent heat resistance, good chemical stability, excellent wear resistance, easy to process, molding, etc., but the price is high, brittle and less flexible. It is widely used in aerospace, automotive, electronics, medical equipment and other fields that need to withstand high wear and high strength parts and components.

The following are PTFE, UHMWPE, PEEK, PI, POM, POK, PA66, PA46, PPS , LCP ten typical wear-resistant plastics, made the main performance comparison table:

Material	Temperature range (℃)	Chemical resistance	Friction coefficient	Mechanical strength	Typical Applications
PTFE	-200 to +260	Very good	Extremely low	General	Seals, wire and cable insulation, non-stick coatings, chemical piping
UHMWPE	-200 to +80	Good	Relatively low	Medium	Bearings, sliders, food processing equipment, pipe fibers military equipment
PEEK	-40 to +340	Excellent	Low	High	Aerospace components, chemical equipment, electronic components, biomedical implants, etc.
PI	-200 to +350	Excellent	Medium	High	Electronic Insulation Materials, spacecraft components, high-temperature seals, etc.
POM	-40 to +150	Good	Medium	High	Automotive parts, household appliances, industrial machinery gears, etc.
POK	-30 to +190	Good	Medium	High	Automotive fuel systems, transmission parts, pneumatic tools, etc.
PA66	-40 to +240	Good	Medium	High	Automotive parts, electrical insulation parts, gears and bearings, etc.
PA46	-40 to +280	Good	Medium	High	Gears and bearings for high-temperature environments, automotive engine peripheral parts, etc., connectors
PPS	-40 to +250	Excellent	Medium	High	Automotive parts, chemical equipment, fluid handling systems, etc.
LCP	-40 to +300	Excellent	Medium	High	Electronic packaging materials, high-frequency connectors, automotive sensors, etc.

Author:

Ms. Tina

E-mail:

sales@honyplastic.com

Phone/WhatsApp:

+8618680371609