Shanghai Daoqin Plastics Co., Ltd.

PBT engineering plastics is crystallization type thermoplastic polyester, tool has good chemical stability property and machine strong/high degree. as is important filament use engineering plastics, due to PBT filament tool has good elastic property, therefore PBT基础 resin by widely used in filament, filament, carpet filament and other day active field/area.

（一）PBT基础 resin in filament field/area application

currently PBT in filament field/area main/primary separation is elastic force filament and Monofilament, its in Monofilament also separation is filament and false filament. filament main/primary has high grade paint 刷, 牙刷, 油画笔, 化妆笔, carpet filament and other.

a. paint 刷 in material 毛发越 越 less, market demand 越 越 large lower, 因PBT tool has excellent elastic property and flexible is types comparison substitute/replace product, most is use PA, PP and PET, is PA price relatively high, PET, PP filament relatively hard, 因而限 made use, in PBT resin industrial production rear, PBT filament 代替猪鬃, very fast to use.

b. 牙刷 filament PBT filament due to elastic property good, resistant 倒伏, easy color, easy abrasion and other excellent features, is high 档牙刷毛 首 material selection material, 随 人们生 active water improve/increase, for 口腔保健越 越 heavy 视, PBT soft/flexible demand 会越 越 more.

c. 油画笔 油画笔 generally using/adopting material coarse made formed, in market demand 越 越 large lower, tool has excellent elastic property and flexible PBT刷 filament is types comparison substitute/replace product.

d. 化妆笔 笔刷毛 generally using/adopting material made formed, material soft/flexible separation 叉不伤害肌肤, price relatively 贵. 随 动 material 毛发越 越 less, market demand 越 越 large lower, tool has excellent elastic property and flexible PBT刷 filament very fast to use.

e. carpet filament use PBT刷 filament made formed carpet soft/flexible, color color 鲜艳, resistant use, wet, elastic property good, wear resistant, to large 消费者 青睐.

（二） various filament comparison

PP刷 filament: tool has resistant acid alkali features, high temperature resistance elastic property is very good, long time as easy deformation difficult 于恢复, therefore suitable for industrial remove and in for relatively coarse 犷 部 parts, ring 卫车 扫 刷.

PA610（PA66, PA6） nylon series filament: resistant abrasion loss property can relatively good, tool has high temperature resistance resistant acid alkali and other features, price high. suitable for remove and in 毛刷部 parts, ratio 如吸尘 device 滚刷, 毛刷辊, 毛刷平台 and other.

PA612 or PA1010: elastic property most good, cost most high, wear resistance and 610, impact resistant, anti-aging and other property can non good, most combined used for industrial equipment and and other anti parts.

PE filament （ polyethylene (PE) filament ）: is type filament in relatively soft/flexible filament, high temperature resistance, used for automotive 清洁刷 upper, add upper process, for automotive coatings 面 保护.

猪鬃: 常 used for 洗浴刷 or heavy material parts light, device, 宝石, and other surface 处理, suitable hard alloy light abrasion;

PBT high elastic filament: elastic property relatively PA刷 filament need good, wear resistance relatively good, PBT property can relatively soft, most suitable for fine parts 清洗 污, ratio automotive surface 清洗, 空调风 tube/pipe and other.

（三）PBT in filament field/area development trend

随 生 active water improve/increase, for 口腔保健越 越 heavy 视, for 化妆刷 quality 越 越挑剔, PBT soft/flexible demand 也会越 越 more. price 方面, 随 PBT price 回落, its filament product and nylon versus ratio property can 接近, elastic property more is color, 显现出突出 property ratio advantages.

（四） Bluestar in PBT基础 resin

Bluestar in PBT基础 resin field/area tool has 20 more year 耕耘历 history, is inner relatively from 事PBT基础 resin production R&D has large type enterprise, in 南通星辰 engineering plastics 基, has 亚洲第一 sleeve/set method PBT resin production plant/unit.

Bluestar has 并掌握刷 filament grade PBT基础 resin production process, polyester product tool has molecular weight distribution narrow, oligomer content low, 端羧基 content low and other features, long product quality to filament good 评.