News

Choosing the right blowing agent for rubber applications is essential for ensuring optimal product performance. Users often ask: "What are the differences between OBSH and ADC blowing agents, and how do they impact my rubber formulations?" This article aims to dismantle common pain points faced by manufacturers, comparing the characteristics and performance of OBSH (Olefinic Blowing Agent) and

Chemical blowing agents (CBAs) are substances that enable the formation of gas within a polymer matrix, creating a cellular structure that enhances properties like insulation and lightweight characteristics in finished products.

PVC can turn yellow during extrusion when heat stabilization is insufficient, the melt experiences excessive shear, or the material remains in the extruder or die for too long. These conditions can accelerate thermal degradation and dehydrochlorination, releasing hydrogen chloride (HCl) and forming conjugated structures that discolor the polymer.

AC (azodicarbonamide) and OBSH (4,4′-oxybis(benzenesulfonyl hydrazide)) are chemical blowing agents used to create cellular structures in plastics, rubber, and other polymer products. AC generally offers higher gas yield and lower material cost, making it attractive for cost-sensitive, high-volume production.