Owens Corning Chopped Strand Fiberglass for BMC

Owens Corning Chopped Strand Fiberglass for BMC

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Loading Port:: China Main Port

Payment Terms:: TT or LC

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1.Brief Introduction

Chopped Strands for BMC are compatible with unsaturated polyester, epoxy resin and phenolic resins.
The end-use applications include transportation, building & construction, electronic & electrical, mechanical, and light industry.

2.Product Features
Extremely low resin demand, delivering low viscosity to BMC paste
High impact strength; High LOI rate
High strand stiffness; Compatible with rubber

3.Product Specifications

Property	Fibre diameter	Moisture Content	Size Content	Chop
	（%）	（%）	（%）	（%）
Mathods	IS01888	ISO3344	ISO1887
3mm	±10	≤3.0	0.1±0.05	98
6mm
9mm
12mm

Special specification can be produce according to customer requirements.

Fiber Glass Chopped Strands For BMC

4.FAQ

Packaging：
Each bag can be taken （15-25kgs）。 Could also take a big container bag.
Storage：
Unless otherwise specified, It should be stored in a dry, cool and rain-proof area. It is recommended that the room temperature and humidity should be always maintained at 15℃～35℃ and 35%～65% respectively.

Q: How does the fiber dispersion affect the surface finish of chopped strand composites?: The distribution and orientation of individual fibers within a composite material is known as fiber dispersion. In chopped strand composites, the fibers are distributed randomly and oriented in various directions. The level of fiber dispersion greatly affects the surface finish of the final composite product. When the fibers are evenly distributed and oriented, resulting in good dispersion, the surface finish of the chopped strand composite is smoother and more uniform. This is because the fibers effectively fill the resin matrix, creating a homogeneous structure. The smooth surface finish is desirable in applications where aesthetics or smoothness are important, such as in automotive or consumer products. Conversely, poor fiber dispersion leads to uneven distribution and orientation of fibers in the composite. This can create areas with high fiber concentration and other areas with low fiber concentration. As a result, the surface finish of the chopped strand composite becomes rougher and more irregular. The presence of fiber clusters or voids can also cause surface defects like pitting or waviness. In addition to impacting the surface finish, fiber dispersion also affects the mechanical properties of the composite. Well-dispersed fibers provide better reinforcement, resulting in improved strength, stiffness, and impact resistance. Conversely, poor fiber dispersion can lead to weaker areas with reduced mechanical performance. To achieve the desired surface finish in chopped strand composites, it is crucial to ensure proper fiber dispersion during the manufacturing process. Techniques such as mechanical mixing, spray-up, or injection molding can be used to enhance fiber dispersion and promote a smooth and uniform surface finish.

Q: What are the dimensional stability properties of fiberglass chopped strand?: Fiberglass chopped strand exhibits excellent dimensional stability properties. This is due to the combination of the inherent rigidity and strength of glass fibers and the resin matrix that holds them together. The tightly bound and evenly distributed chopped strands create a reinforcing network that resists deformation and maintains its shape even under various environmental conditions and mechanical stresses. One of the key dimensional stability properties of fiberglass chopped strand is its low coefficient of thermal expansion. This means that it expands and contracts very little with changes in temperature, minimizing the risk of warping or distortion. This property makes fiberglass chopped strand suitable for applications where dimensional accuracy is critical, such as in automotive parts, boat hulls, and construction materials. Additionally, fiberglass chopped strand has a high resistance to moisture absorption and humidity, which helps to prevent swelling or shrinking that could affect its dimensions. This resistance to moisture also makes fiberglass chopped strand suitable for outdoor and wet environments, where other materials may deteriorate or lose their dimensional stability. Furthermore, fiberglass chopped strand has excellent resistance to chemical and solvent attacks, which helps to maintain its dimensional stability in corrosive environments. This property is especially important in industrial settings where exposure to chemicals or harsh substances can cause dimensional changes in other materials. Overall, the dimensional stability properties of fiberglass chopped strand make it a reliable and durable material for a wide range of applications. Its ability to maintain its shape and dimensions under various conditions ensures long-lasting performance and structural integrity.

Q: How is the fiber distribution in fiberglass chopped strand ensured?: The fiber distribution in fiberglass chopped strand is ensured through a combination of manufacturing techniques and quality control measures. During the production process, the glass fibers are chopped into predetermined lengths and then mixed with a binding agent. This mixture is then spread evenly onto a conveyor belt or a rotating drum, where it is further processed. One of the key steps in ensuring fiber distribution is the use of a mechanical device, such as a comb or a rake, which aligns and separates the fibers as they are being spread. This helps to prevent clumping and promotes an even dispersion of the fibers. In addition to mechanical devices, manufacturers also employ various techniques to monitor and control the fiber distribution. For example, sensors and cameras may be used to inspect the fiber mat and detect any irregularities or areas of poor distribution. This allows for adjustments to be made in real-time to ensure consistent and uniform fiber distribution. Furthermore, quality control measures are implemented throughout the production process. Random samples of the fiberglass chopped strand are regularly taken and tested for fiber distribution. These samples are analyzed using techniques such as microscopy or image analysis to measure the length and alignment of the fibers. By combining these manufacturing techniques and quality control measures, the fiber distribution in fiberglass chopped strand is carefully controlled and ensured to meet the desired specifications. This helps to maintain the structural integrity and performance of fiberglass products in various applications, such as in the construction, automotive, and aerospace industries.

Q: What are the different surface treatments available for fiberglass chopped strand?: There are several surface treatments available for fiberglass chopped strand to enhance its performance and compatibility with various materials. Some of the common surface treatments include: 1. Silane treatment: Silane is a widely used surface treatment for fiberglass chopped strand. It involves the application of a silane coupling agent onto the surface of the strands. Silane helps in improving the adhesion between the fiberglass and the matrix material, resulting in enhanced mechanical properties and durability of the composite. 2. Sizing treatment: Sizing is another surface treatment method where a protective coating is applied to the fiberglass strands. Sizing agents typically consist of a combination of lubricants, binders, and other additives. This treatment helps to protect the fibers during processing and handling, and also improves their wettability and compatibility with different resin systems. 3. Plasma treatment: Plasma treatment involves exposing the fiberglass chopped strand to a high-energy plasma gas. This treatment modifies the surface of the fibers by cleaning and activating them, resulting in improved adhesion and wetting characteristics. Plasma treatment is often used to enhance the performance of fiberglass in demanding applications. 4. Chemical treatment: Various chemical treatments can be applied to the surface of fiberglass chopped strand to modify its properties. For example, acid treatment can increase the surface roughness and remove impurities, while alkali treatment can improve the fiber's resistance to moisture and alkali degradation. 5. Coating treatment: Coating treatments involve applying a thin layer of coating onto the surface of the fiberglass strands. These coatings can be made of various materials such as polymers, metals, or ceramics. Coating treatments are often used to provide additional protection against abrasion, UV degradation, or chemical attack, and can also improve the compatibility of the fiber with specific resin systems. Overall, the choice of surface treatment for fiberglass chopped strand depends on the specific requirements of the application and the desired properties of the final composite material. The selection of the appropriate treatment plays a crucial role in optimizing the performance and durability of the composite.

Q: How is the fatigue resistance of fiberglass chopped strand composites tested?: The fatigue resistance of fiberglass chopped strand composites is typically tested using cyclic loading tests. These tests involve subjecting the composite material to repeated loading and unloading cycles to simulate real-world fatigue conditions. The number of cycles and the applied load levels can vary depending on the specific application and requirements. The performance of the composite is evaluated based on its ability to withstand the cyclic loading without significant degradation in mechanical properties or structural integrity.

Q: Can fiberglass chopped strand be used in the production of sporting goods?: Yes, fiberglass chopped strand can be used in the production of sporting goods. Fiberglass chopped strand is a versatile material that offers several benefits for the manufacturing of sporting goods. It is lightweight, strong, and has excellent tensile strength, making it ideal for applications that require durability and high performance. In sporting goods production, fiberglass chopped strand is commonly used in the construction of various components such as hockey sticks, tennis rackets, golf clubs, and bicycle frames. Its high strength-to-weight ratio allows for the creation of lightweight yet robust products, enhancing the performance of athletes. Fiberglass chopped strand is also resistant to corrosion, which is beneficial for sporting goods that are exposed to moisture or outdoor elements. Furthermore, fiberglass chopped strand can be easily molded into different shapes and sizes, allowing for the production of complex designs and custom-made sporting goods. Its flexibility and ability to bond well with different resins make it an ideal material for creating composite structures that are strong and durable. Overall, fiberglass chopped strand is a suitable material for the production of sporting goods due to its lightweight, strength, durability, corrosion resistance, and versatility in manufacturing processes.

Q: What are the typical creep properties of fiberglass chopped strand composites?: The typical creep properties of fiberglass chopped strand composites refer to the material's tendency to deform and relax under a constant load or stress over an extended period of time. Fiberglass chopped strand composites exhibit relatively low creep compared to other materials such as metals or polymers. This is due to the reinforcing properties of the fiberglass strands, which provide strength and stiffness to the composite. Creep in fiberglass chopped strand composites is influenced by various factors, including temperature, humidity, and the applied load. At higher temperatures, the creep rate tends to increase as the matrix material softens, allowing for more deformation. Similarly, high humidity levels can accelerate creep as moisture can weaken the matrix and reduce the overall strength of the composite. The applied load or stress level also affects the creep behavior of fiberglass chopped strand composites. Higher loads typically lead to higher creep rates, as the material experiences greater deformation under the sustained stress. However, the reinforcing nature of the fiberglass strands helps mitigate creep by distributing the load and preventing localized deformations. Overall, fiberglass chopped strand composites exhibit relatively low creep properties, making them suitable for applications that require dimensional stability and resistance to prolonged stress. However, it is important to consider the specific environmental conditions and load requirements to ensure the material's performance meets the desired expectations.

Q: How does the fiber orientation impact the properties of chopped strand composites?: The fiber orientation in chopped strand composites has a significant impact on their properties. Chopped strand composites are typically made by randomly dispersing short fibers in a matrix material. The orientation of these fibers can greatly affect the mechanical properties, such as strength, stiffness, and impact resistance, as well as the overall performance of the composite material. In a chopped strand composite, the fiber orientation determines the load-bearing capability of the material. Fibers aligned in the direction of the applied load will bear most of the stress, leading to improved strength and stiffness in that direction. On the other hand, fibers oriented perpendicular to the load will have limited load-bearing capacity, resulting in weaker properties in that direction. Moreover, the fiber orientation also influences the anisotropic behavior of the composite. Anisotropic materials have different properties in different directions, and the degree of anisotropy is determined by the fiber orientation. For instance, if the fibers are randomly oriented, the composite will exhibit more isotropic behavior, meaning the properties will be relatively similar in all directions. However, if the fibers are aligned, the composite will be more anisotropic, with properties varying significantly based on the direction of loading. The impact resistance of chopped strand composites is also affected by the fiber orientation. Fibers oriented in the direction of impact can effectively absorb and distribute the energy, resulting in improved impact resistance. On the contrary, fibers oriented perpendicular to the impact direction may not be as effective in absorbing the energy, making the composite more susceptible to damage. In summary, the fiber orientation plays a crucial role in determining the properties of chopped strand composites. By controlling the alignment of the fibers, manufacturers can tailor the composites to meet specific application requirements, optimizing strength, stiffness, impact resistance, and anisotropy to enhance the overall performance of the material.

Q: Can fiberglass chopped strand be used in the production of electrical insulators?: Yes, fiberglass chopped strand can be used in the production of electrical insulators. It is commonly used as a reinforcing material in composite materials, including those used in electrical insulation applications.

Q: How does the density of chopped strand composites compare to other materials?: The density of chopped strand composites is typically lower than that of many other materials. Chopped strand composites are made by reinforcing a matrix material, such as resin, with short strands of fibers, usually glass or carbon. These fibers are randomly oriented and provide strength and stiffness to the composite structure. Compared to materials like metals, chopped strand composites have a lower density. Metals, such as steel or aluminum, have a higher density due to their atomic structure. This higher density can result in heavier components, which may not be desirable in certain applications where weight reduction is important. On the other hand, chopped strand composites have a density similar to or slightly higher than some polymers. Polymers are lightweight materials, and when reinforced with fibers, they can achieve higher strength and stiffness than their unreinforced counterparts. However, the addition of fibers increases the density of the composite. Overall, the density of chopped strand composites falls in the middle range when compared to other materials. It provides a balance between lightweight characteristics and mechanical properties, making it a suitable choice for various applications where weight reduction, strength, and stiffness are important factors.

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