Optical Brightener OB

产品概述Overview

产品介绍Product Introduction

OB（C.I. 荧光增白剂 184，CAS 7128-64-5）为噻吩双苯并噁唑类荧光增白剂，是通用塑料行业的标准通用型增白剂。它吸收 340–380 nm 近紫外光，发射 420–450 nm 蓝相荧光，光学抵消基体黄相，呈现明亮洁净的白。耐热约 350 °C，性价比优异，是聚烯烃与通用树脂体系的首选。

OB (C.I. Fluorescent Brightener 184, CAS 7128-64-5) is a thiophene-based bis-benzoxazole optical brightener — the industry-standard, general-purpose whitening agent for commodity plastics. It absorbs near-ultraviolet light (340–380 nm) and re-emits blue fluorescence (420–450 nm), optically cancelling the yellow cast of the base resin for a bright, clean white. With heat stability of approximately 350 °C and an excellent price/performance ratio, OB is the first choice for polyolefins and general-purpose resin systems.

技术参数Specifications

技术数据Technical Data

OB 技术参数速览OB Technical Snapshot

化学类型Chemical Type	噻吩双苯并噁唑Thiophene bis-benzoxazole
C.I. No. / CAS No.	C.I. 184 · CAS 7128-64-5
荧光Fluorescence	蓝相 · 420–450 nmBlue · 420–450 nm
耐热性Heat Stability	约 350 °C~350 °C
建议添加量Typical Dosage	0.01% – 0.10%（100–1000 ppm）0.01% – 0.10% (100–1000 ppm)
主要应用Main Applications	PP、PE、PVC、ABS、PSPP, PE, PVC, ABS, PS
包装Packaging	25 kg 纸板桶25 kg fiber drum
合规Compliance	ISO 9001 · REACH · RoHS

性价比之选

Cost-Effective Excellence

通用型最佳性价比，综合性能均衡。

The best value among general-purpose brighteners.

蓝相稳定

Stable Blue Shade

批次间色相一致。

Consistent fluorescence hue batch after batch.

易分散

Easy Dispersion

在聚烯烃与通用树脂中分散良好。

Disperses well in polyolefins and commodity resins.

广泛相容

Broad Compatibility

兼容多数稳定剂与抗氧剂体系。

Compatible with most stabilizer and antioxidant systems.

应用Applications

典型应用领域Typical End Uses

PP / PE — 薄膜、片材与注塑件 — film, sheet & molded parts

PVC — 型材、管材与板材 — profiles, pipes & sheets

ABS — 家电与汽车外壳 — appliance & automotive housings

PS / HIPS — 通用制品 — general products

Masterbatch — 白色母粒与改性料 — white masterbatch & compound

注：建议在真实配方（含稳定剂、钛白、填料）中打板验证色相与迁移表现。Note: we recommend lab trials in your actual formulation (stabilizers, TiO₂, fillers) to verify shade and migration.