Polyethylenimine (PEI) or poly is a polymer with repeating unit composed of the amine group and two carbon aliphatic CH2CH2 spacer. Linear polyethyleneimines contain all secondary amines, in contrast to branched PEIs which contain primary, secondary and tertiary amino groups. Totally branched, dendrimeric forms were also reported. PEI is produced on industrial scale and finds many applications usually derived from its polycationic character.
 

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Xi'an SENYI  New Material Technology Co., Ltd New Material Technology Co., Ltd, is a large manufacturer of fine chemical ,and cosmetic materials that integrates R&D, production and sales together. Besides, The Company was established in 2021.Our company located in the beautiful spring city Xi'an , whose factory located in both Xi'an  industrial zone and lab in  Shannxi  city.
 Our company is a modern high-tech chemical enterprise with Research & Development, production and sales.Our company has strong technical strength, advanced equipment, strict quality management system and high-quality after-sales service,  All for the customers' satisfaction, all for the long-term healthy development of the enterprise.There are several series including Disinfection Product , food grade additives, industrial grade and fertilizer grade products.We can provide all kinds of materials needed in the world, please tell me if you need it, we use scientific and technological equipment for production.
Over the years ,With all the efforts of everyone, the turnover becomes bigger and bigger; Customers spreads from Asia to Europe, America and Australia, Tiger of Thailand, Novas of UK,  Poland and so on .Adhere to the "going out" strategy, let our chemical industry go to the world.


Our  factory

Our advantages
High quality with competitive price.
1. Standard bp/usp/ep/enterprise standard.
2. All purity>99%.
3. We are manufacturer and can provide high quality products with factory price.
Fast and safe delivery.
1. Parcel can be sent out in 24 hours after payment tracking number available.
2. Secure and discreet  shipment verious transportation methods for your choice.
3. Customs pass rate >99%.
4. We have our own agent/remailer/distributor who can help us ship our products very fast and safe, and we have stock in there for transferring.
We have clients throughout the world.
1. Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their desire.
2. Market feedback and goods feedback will be appreciated , meeting customers' requirement is our responsibility.
3. High quality, competitive price, fast delivery, first-class service gain the trust and praise from the customers.
 

Prompt shipment after the receipt of your order confirmation.
25kg/drum or 1kg/aluminum foil bag or as customer's requirement
Transit could be DHL,UPS,TNT,EMS,Fedex,and so on.
It usually takes 3-15 days to arrive.
For mass orders, it will be delivered by air or sea.

FAQ:
Q1 : Can I get some free sample for test
A1 : Yes, free sample could be provided, and you only need to pay the shipping cost.
Q2: What is the MOQ
A2: It depends on different products. Usually the MOQ is 1kg.
Q3: How about delivery lead time  
A3: Delivery lead time: About 3-5 days after payment confirmed.( Chinese holiday not included)
Q4: Is there a discount  
A4: Different quantity has different discount.
Q5: How do you treat quality complaint  
A5: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Any inquiry, pls contact me freely.