1. Overview

Polyurethane prepolymer is a reactive intermediate with carbamate group in its skeleton, which is obtained by the reaction of polyisocyanate and polyol. It is widely used in many fields, such as polyurethane adhesive, coating, elastomer, foam and fiber.

The Puranate series hydrophilic prepolymer of jiahua chemistry is a reactive liquid blocked by polyurethane prepolymer - isocyanate, which has strong hydrophilicity. The prepolymer can be mixed with water to produce products with different properties, such as foam, gel, glue, etc., by controlling the amount of water added without adding catalyst or additional heating.

2. Hydrophilic Mechanism

3. Product technical indicators

Puranate series prepolymer of MDI system

Puranate series prepolymer of TDI system

4. Product characteristics and application

Hydrophilicity: excellent hydrophilicity can endow products with affinity surface, and can be used in medical foam, cosmetic cotton and other related fields.

Water absorption: It can absorb 20 times the water of its own weight, and can keep the water from losing within a certain period of time. It is often used for gardening.

Sustained release: easy to load hydrophilic functional additive materials, which can be used for facial masks, odor slow release gel, etc.