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1. The properties and application of modified PET

PET is the most cost-effective answer when we intend to consider the materials, which combine the stiffness, high temperature performance, better dimension stability and high gloss. It has the reinforced polyethylene terephthalate (PET) for optimum performance and easy processing, which can produce high performance parts according to the traditional forming methods:
1) The deformation temperature is 20 ?C higher than modified PBT, and it can be processed in a wide range of temperature;
2) PET components can maintain the performance and size because of its low water absorption rate. That makes it to replace the die cast metal and thermosetting plastic, PA in the key requirements of stiffness, the critical tolerances and decoration parts. PET, with its excellent flowability, allows it to be used in lower injection pressure than other resins filled with complex, thin-walled mold. This is a particularly important advantages for micro parts;
3) Flame retardant  series can be widely used in electrical components industry. They also have the highest t UL flame temperature index among the thermoplastic polyester except the excellent electrical performance
4) PET is the green environmental protection material, recyclable and degradation.

2. PET Replace PBT
PET may replace PBT because it has a close molecular structure and related properties with PBT. Compared with PBT, PET has advantage:


1)lower cost
2)Higher mechanical properties
3)Higher thermal resistance
4)Lower shrinkage

3. Common application of modified PET
Application of modified PET in the automotive industry
Application of modified PET in the Electrical and electronic industry
Application of modified PET in the Consumer goods



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后挡风玻璃雨刮器臂 线圈骨架
电机外壳 制动助力器及阀体 点火线圈

反射镜电机壳体 汽车天窗框
汽车电器接插件 汽车转向盘角度感应器壳体

反射镜电机壳体 汽车天窗框


电子电器连接器 电器外壳

电熨斗底板 散热器风扇
节能灯具灯头基座 直发器外壳 烤面包机外壳,烤箱把手


4. What is the main application field of 4 modified PET? What is the demand characteristics of the material?

1. Automotive industry
1) Application: Decoration loop of car lamp. Front crossbeam of sunroof, brake / clutch system, air conditioning vents, sensor, motor shell, connectors, ignition coil, tube wiring harness
2) The demand characteristics:
.Water resistance, alkali, acid, oil, excellent machinability, and mold tolerance
.Excellent dimensional stability.
.Excellent low temperature performance.
.Strength and toughness, no floating fiber surface
.Good flowability and low shrinkage
2. Electrical and electronic industry
1) Application: The coil frame, connector, cable socket, adapter and electrical housing
2) The demand characteristics:
.Excellent heat resistance.
.High strength and modulus.
.High heat resistant, facilitate welding operation
.Constant electrical properties in broad temperature and frequency range
.Excellent dimensional stability.
.Keep well in the wet environment.
3. Consumer goods
1) Application: electric iron, hair straightener, energy saving lamp, switch, radiator fan
2) The demand characteristics:
.Excellent flame retardant, UL94 V0 level
.High heat resistant, facilitate welding operation
.Excellent mechanical properties, especially with high rigidity and hardness
.Heat resistance, yellowing resistance, thermal deformation temperature can reach 220 ℃
.Good gloss in surface, free injection
.Good thermal stability,  low swelling and shrinkage
.Constant electrical properties in broad temperature and frequency range
.The excellent dimensional stability, maintain excellent physical properties in the humid environment

5. What is the injection processing conditions of modified PET?



Typical Values

Drying Temp


Drying Time



Molding Temp


Mould Temp


Injection Speed

Moderate to high


6. What is non-woven fabric? What is it used for?

Non-woven fabric was not formed by weaving or spinning, we simply arrange short textile fibers, or filament fibers directly or randomly to form a fiber network structure, and use mechanical, thermal or chemical methods to stick the fibers together. By using polymer pellets, short fibers or filament fibers and treat them through a variety of methods and consolidation technologies ,the new fiber products was flat structured, soft and breathable.
It is simply like this:  it is not formed by wovening or knitting fibers together, but bond fibers together directly through the physical method, so when you get your fusible interlining on your clothes,you will not find thread ends on it. Non-woven fabric breakthroughed the traditional principles of spinning, and has adventages as short process, high production speed, high output, low cost, wide usage, multi-sources of raw materials and so on.
The main usages of non-woven fabric: 
(1) Medical and healthy using: surgical gowns, protective clothing, disinfection pack cloth, masks, diapers, women’s sanitary napkins, etc.
(2) Family decorative using: Wall coverings, tablecloth, bed sheets, bedspread, etc.
(3) With the fitted using: lining, fusible interlining, flakes, stereotypes cotton, various synthetic leather base cloth, etc.
(4)Industrial using: filter materials, insulation materials, cement sack, geotextile fabric, coated fabrics, etc.
(5)Agricultural using: crop protection cloth, seedling cloth, irrigation cloth, heat preservation curtain, etc.
(6)Other using: Space cotton, thermal insulation materials, acoustic insulating material,oil sorbent mat, cigarette filters, tea bags, etc.


7. The characteristics definition and usage classification of non-woven fabric
Durability, one-off. Insulation, electrical conductivity. Softness, stiffness. Fine,dilatability.
Isotropic, anisotropy. Filterability, breathable and waterproof. Elastic property, Stiffness
Light, loose, warm. Thin as onion skin, thick like a carpet. Waterproof and breathable.
Ironing, sewing, molding fomation. Flame-retardant, antistatic. Water permeable, waterproof, wearable, napping property.
Fold resistance, high elasticity, high moisture, waterproof.
Medical and health care: surgical gowns, caps, hood, gypsum absorbent cotton, women’s sanitary napkins, baby diapers, wet f ace towels, sanitary underpants, dust cover.


8. Melt blown nonwoven process

Hills公司对纳米熔喷纤维作过很深的研究,据称已可达到产业化的阶段。其它一些企业例如Nonwoven Technologies(NTI)公司也开发了可生产的纳米熔喷纤维的工艺、技术,并已取得了专利。


9. Support Service/FAQ

1)Spinning uneven 
2)Mesh clogging
3) Crystal pot
4) Hydrostatic pressure is not enough

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