Product Introduction

Polypropylene fibers are produced by thermally extruding 100% polypropylene resin pellets through a continuous manufacturing process. Their performance metrics meet or exceed those of comparable imported products. Our company, in collaboration with Tsinghua University, has developed a specialized organic fiber—modified polypropylene (PP) fiber—for use in mortars. Through a unique production process and surface treatment, these fibers feature a distinctive three-leaf (Y-shaped) cross-section, delivering excellent mechanical properties. When incorporated into mortar, they achieve a uniform, random three-dimensional distribution, exhibit exceptionally high dispersibility, and demonstrate strong bond strength with the mortar matrix. As a result, they effectively inhibit, reduce, and delay microcracking caused by various factors, including creep, plastic shrinkage, drying shrinkage, chemical shrinkage, temperature differentials, and applied loads, thereby significantly enhancing the crack resistance and impermeability of mortar-based products. This leads to improved overall integrity, flexibility, continuity, and durability of the mortar.

Product features, applications, and specifications

Polypropylene fibers are characterized by a small diameter, large specific surface area, excellent dispersibility in cement-based materials, resistance to chemical corrosion by acids, alkalis, and salts, a relatively high melting point, and non-toxicity.

It can be widely used to enhance the impermeability and crack resistance of mortars, ordinary concrete, and high-performance concrete, while also significantly improving concrete’s freeze-thaw durability, fire resistance, impact resistance, wear resistance, and workability. Its primary mechanism involves modifying the physical properties of concrete, and it exhibits excellent compatibility with cement, coarse and fine aggregates, and other admixtures.

Length: Manufactured to customer specifications.

Packaging: Standard packaging is 1.0 kg per small pack; custom packaging is available upon request.

Performance Metrics

Dosage and Construction Method

I. Incorporation of Polypropylene Fibers into Concrete  
Recommended dosage and application length: The recommended application length is 6–19 mm, with a dosage of 1.0 kg per cubic meter of concrete. Concrete mix proportions may remain unchanged; the dosage can be adjusted based on project requirements.
Instructions for use: Add the fiber simultaneously with aggregates such as sand and gravel. Extend the dry-mixing time by 60 seconds and the water-mixing time by 30 seconds.
Slump Adjustment: Do not increase the water content to raise the slump.
Molding and Curing: Fiber-reinforced concrete has no special requirements during molding, but thorough vibration is essential to ensure adequate compaction. As for curing, there are no specific requirements for fiber-reinforced concrete; standard curing procedures for ordinary concrete may be followed. However, the inclusion of fibers should not lead to any relaxation of early-age curing practices.
II. Incorporation of Polypropylene Fibers into Mortar  
Recommended dosage and application length: The recommended application length is 5–9 mm, with a dosage of 1 kg per cubic meter of mortar. The dosage may be adjusted according to project requirements.
Instructions for use: When using, first add a portion of the sand and cement to the mixer, then add the fibers, ensuring that the fibers are evenly dispersed throughout the cement and sand. Next, add the remaining cement and sand. Extend the dry-mixing time by 60 seconds and the wet-mixing time by 30 seconds.

Application Scenarios

Putty powder

Building Materials and Architectural Coatings

Mortar

1. Technical and production strength

-Equipped with advanced production equipment, adopting German production technology, and establishing a complete and strict quality inspection process, the quality of its "Mingwang" brand cellulose products far exceeds industry standards.

-The company is promoting the construction of a new factory area, continuously expanding production scale and service capabilities, and further improving market supply and service efficiency.

2. Scale and team configuration

-The factory covers an area of 80000 square meters, with fixed assets of 80 million yuan and a strong hardware foundation.

-There are currently 150 employees, including 30 middle and senior technical personnel, who focus on technical investment and professional talent team building, providing technical support for product research and development and production.

3. Core products and production capacity

-Main products: Hydroxypropyl Methyl Cellulose (HPMC), Hydroxyethyl Cellulose (HEC), Carboxymethyl Cellulose (CMC), Polyanionic Cellulose (PAC), Carboxymethyl Starch (CMS), Printing Paste, etc

-Annual production capacity quantification index: 50000 tons of cellulose, with a competitive advantage in production capacity among domestic enterprises in the same category.

4. Application areas and market layout

-The product is widely used in various fields such as chemical engineering, building materials, architectural coatings, petroleum drilling, textile printing and dyeing, mineral processing and papermaking, and is suitable for the material formula needs of multiple industries.

-The sales network covers all cities in China and multiple international countries, and the product quality and market reputation have always maintained a leading level in the industry.