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Analysis of the advantages and disadvantages of adding glass fiber to modified engineering plastic PC

Time:2023-12-18     Views:314     Source:PRIME UNION PLASTIC

PC+GF modified plastic is a common reinforced engineering plastic that mixes polycarbonate (PC) and glass fiber reinforcement (glass fiber). Compared with PC pure raw materials, PC+glass fiber has many advantages. advantages, but there are also corresponding disadvantages.

PC+GF

PC, its all name is polycarbonate, is also a relatively commonly used plastic. It is a strong thermoplastic resin synthesized from bisphenol A and diphenyl carbonate through transesterification and polycondensation reactions. PC has high transparency, high strength, high impact strength, low molding shrinkage, good dimensional stability, fatigue resistance, good performance, good thickness resistance, excellent electrical properties, odorless, meets environmental protection and odor requirements, etc.

Glass fiber reinforced PC adds a certain proportion of glass fiber to improve its fatigue strength, tensile strength, flexural strength, elastic modulus and other mechanical properties, significantly improve its stress cracking, and can greatly improve its heat resistance. , the corresponding molding shrinkage will also decrease. It should be noted that the glass content is more suitable in the range of 10% to 40%. If too much glass fiber is added, the performance of the material will also be reduced. In addition, glass fiber reinforced polycarbonate improves the strength, rigidity and dimensional stability of polycarbonate. PC plus glass fiber composite materials are widely used in the engineering field, especially in applications requiring high strength, high stiffness and heat resistance. It is often used in automotive parts, electronic and electrical equipment, industrial equipment, and other applications where large forces or temperatures are required.

In addition, in addition to PC glass fiber reinforced materials, the products we often use also include glass fiber reinforced PC/ABS alloys. Glass fiber is widely used in engineering plastics. As the name suggests, active reinforced PC/ABS alloy improves the mechanical properties of PC/ABS by adding a certain proportion of glass fiber. Such as tensile properties, bending properties, and the corresponding molding shrinkage rate are not reduced, so that the material will not stress crack.We can summarize the advantages of glass fiber-added materials:

1. High strength: PC+glass fiber has high strength and stiffness and can withstand high stress and impact loads.

2. Good heat resistance: PC+glass fiber can withstand high temperatures and will not deform even at high temperatures.

3. Corrosion resistance: PC+glass fiber has good corrosion resistance against some chemical substances.

4. Good electrical insulation: PC+glass fiber can still maintain good insulation performance in high temperature and humid environments.

5. Easy to form: Since glass fiber enhances the stiffness and strength of PC, PC+glass fiber is easier to form than PC and can be used for various complex-shaped parts and components.

What are the disadvantages of adding too much glass fiber? We summarized the following points:

1. As mechanical skills increase, the brittleness of PC/ABS alloy materials also increases.

2. After adding glass fiber, the core viscosity of PC/ABS increases, the fluidity becomes worse, and the injection pressure is much higher than that without adding glass fiber.

3. The injection molding temperature needs to be 10 to 30 degrees higher than that of PC/ABS without glass fiber.

4. Floating fibers are produced on the surface of the product

5. The material will become easily absorbent.

The properties of PC plus glass fiber composite materials can be adjusted according to factors such as the content and length of added glass fiber, the orientation of the fibers, and the preparation process. Therefore, in specific applications, it is necessary to select appropriate PC plus glass fiber composite materials according to needs. It is recommended that when selecting materials, you call Mattel Plastics and a professional plastics engineer will recommend a suitable modified formula for you.

QINGDAO PRIME TRADE CO., LTD is a company with more than 20 years of experience specializing in the agency of international brand engineering plastic granules. Its main agents are: CHIMEI ABS,  HANWHA TOTALEnergies PP, SABIC PPO, Except for PC special materials. We also have our own modification processing factory, Qingdao primetech Plastic Co., Ltd., with a professional technical team to provide you with fast and professional services to meet the needs of customers at different levels.


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