How many degrees should be used for DuPont TPEE injection molding

How to receive an order for injection molding, it is not so easy for the factory to have a steady stream of capacity output. Each injection molding order item is composed of a series of factors, such as: process, material, technical requirements, drawing details, unit price, delivery time, and business area.

Therefore, if you want to get injection molding orders, there are mainly these ways: 1. Widely get acquainted with industry procurement network resources 2. Participate in offline procurement and supply docking activities 3. Look for purchase orders on industry-related platforms or **, such as: 168, Haizhi**, Made-in-China, Gasgoo Auto Network, etc.

PEE (thermoplastic polyester elastomer) is a block copolymer of polyester hard segments and soft segments containing polyether.

Which can be the crystallization of the soft segment of polyester polyether instead of the amorphous polyester hard segment is added.

The formation of microcrystalline forms that functions as physical cross-linking points. 13. The elasticity of TPEE rubber and the strength of engineering plastics; 43 soft segments give it elasticity and make it like rubber; The hard section gives it machinability, 88 it resembles plastic; Compared with rubber, it has better processing properties and longer service life; 09Compared with engineering materials, it also has the characteristics of high strength, 36

and better flexibility and dynamic mechanical properties. Talk in detail.

The shrinkage of TPEE is generally , and the density is about.

It can be processed by various thermoplastic processing processes, such as extrusion, injection, blow molding, rotational molding, and melt casting molding.

1. Extrusion molding.

TPEE can be extruded into sheets, tubes, rods, wire wrappers, etc. A general gradient screw with a length-diameter ratio of 24:1 and a compression ratio of (:1) can be used.

2. Injection molding.

Injection molding technology can be processed into products of various shapes and sizes. The reciprocating screw type injection machine is preferentially used because it can obtain a melt with uniform temperature, the groove depth is gradual, the compression ratio is recommended, and the screw length-diameter ratio (18-24): 1; The injection pressure is 80-120MPa, and slow to medium speed injection is used.

3. Blow molding.

Blow molding requires resins with high melt viscosity and melt strength. The chemical chain expansion technology of polymer extrusion is applied to block special segments into the TPEE molecular chain to prepare high-viscosity TPEE that can meet the requirements of blow molding large special parts (such as engine air intake ducts).

4. Other molding processes.

TPEE is also suitable for processes such as rotational molding and melt casting molding. For example, balls and small pneumatic tubeless tires are processed by the rotary molding process. Melt casting has the advantages of low processing cost and good dimensional stability of the product.

Wash the barrel thoroughly. Clean the barrel with washing material such as PP, and then set the temperature required for TPEE processing. The temperature resistance of each grade of TPEE is different, and the injection temperature is recommended to ask ** quotient generally in 180 230

Good dryness is guaranteed. It is recommended to dry for 90 hours for 3 hours.

The injection temperature is 200-220 degrees, the mold temperature is 30-40 degrees, and the drying temperature is 80 degrees, 2-3 hours.

Thermoplastic polyester elastomer TPEE must be dried continuously for 3-5 hours in a blast oven at 100-110 degrees Celsius before molding and processing, and processed while hot.

Injection molding: the barrel temperature is 10-15 degrees Celsius higher than the melting point of the product, and the injection temperature is 190-220 degrees Celsius. The injection pressure is 60-80MPa, the mold temperature is 20-50 degrees Celsius, and the injection speed is

Medium to low speeds.

TPEE, an elastomer belonging to the polyester class, has the characteristics of high elasticity, wear resistance, excellent recovery, etc., and is widely used in automobiles, silent gears, etc.

Molding process. Before production, it needs to be dried at a temperature of 90 degrees for at least 2 hours, and its fluidity is very slow, so the temperature during molding generally reaches more than 230, and the molding temperature needs to be adjusted according to the size of the product and the design of the glue mouth, and the temperature that TPEE can withstand can reach 280, so its temperature adjustable range is quite wide!

TPEE, also known as Haicui, generally has the process of injection molding and extrusion!

The TPEE injection molding process is relatively uncomplicated, but it depends on what products you make?

Hello, Guanghui Tuoye plastic raw material Xiao Deng gave you the answer: different brands of TPEE production temperature is not the same, because there is no specific model, so this side can only give you an approximate temperature, between 189 and 231 °C, if you need a more accurate temperature, you can give me a specific model, I hope the above answer can help you, hope to adopt.

**The merchant reminds you that the shrinkage rate of injection molded TPEE material hardness of 90 degrees is generally.

5556 is DuPont's TPEE, and the Shore hardness is 55D, and the degree you are talking about may be A. It should be at 110 degrees.

I have this model here. There are also models of the same class.

TPE heat-resistant temperature 60 100

1. Ordinary TPE material 90 degrees, TPV 130 degrees, TPEE 150 degrees. TPE material can withstand high and low temperature (-50-100), excellent fluidity, oil resistance, excellent flexibility, excellent environmental protection, to meet the needs of customers for high weather resistance. Application Cases:

Tire bumpers, handles, steering wheels, dust covers, etc.

2. TPE (Thermoplastic Elastomer) is used as the abbreviation of all thermoplastic elastomers, which is broadly speaking, such as TPU, TPEE, TPV, TPO, etc. In a narrow sense, TPE is a styrene-based thermoplastic elastomer. It is a material blended and modified by SEBS (Styrene-ethylene-butylene-styrene block copolymer) as the base material.

It has the thermoplasticity of plastic and the elasticity of rubber. The appearance of TPE is natural, translucent or transparent round or cylindrical particles, and the surface is a subsurface effect. The density is generally in grams of cubic centimeters.

Temperature resistance 90 degrees Celsius for ordinary TPE materials, 130 degrees Celsius for TPV, 150 degrees Celsius for TPEE (operating temperature).

If the temperature required for material processing is generally about 180 degrees, and the molding temperature of some high molecular weight should reach about 280 degrees.

The best processing temperature of TPE material in the barrel of injection molding machine, I have seen 270-280 degrees, the material will not decompose.

TPE is a blended and modified polymer plastic. There is no fixed melting point. There is no certain standard for how high the temperature is resistant. Because TPE itself has many grades with different hardness and physical properties.

My understanding is that to evaluate the high temperature resistance of TPE, you can evaluate how many hours the TPE material can withstand at the test temperature without softening deformation, which may not have an experimental test method, but at least it should not make the product lose its performance. These require a TPE technical engineer to communicate with the customer and make a general assessment.

【Professional TPEE】

TPEE has a high temperature resistance of 150 degrees, and there are well-known companies such as DuPont and South Korea's SK and DMS.

TPEE has excellent heat resistance and maintains good performance when the temperature rises. Strong abrasion resistance. Low temperature resistance -35-50 180 Aging resistance is stronger than TPU, TPR TPE.

TPEE is basically weightless at 110 140 continuous heating for 10h, heated at 160 and 180 for 10h respectively, and the weight loss is only and, so the use temperature of TPEE is very high, the short-term use temperature is higher, and it can adapt to the baking temperature (150 160) on the automobile production line, and it has little loss of mechanical properties at high and low temperatures. Good resistance to chemicals, oils, solvents and weather. Excellent bending performance.

High tear strength and high friction resistance. Low long-term compression set. Point is particularly advantageous in the application of silent gears (hardness range:

28d-72d) 。The higher the hardness, the better the heat resistance; High impact strength and good low-temperature flexibility. Good creep, impact and fatigue resistance.

It can have both: high mechanical strength, high hardness while maintaining high elasticity and high aging resistance.

**Business reminds you that there are many TPEE resistant to high temperatures of 150 degrees.

A lot of tpee materials are made, you can check out our thanks!