base和alkali什么区别

高分子专业英文翻译
INTRODUCTION
Alkali metal salts of polyacrylic acids are water-soluble, multi-functional polyelectrolytes exhibiting a variety of solution properties useful in laundry and dishwash detergent compositions. These polyacrylates contain anywhere from 10 to upwards of 4000 repeating monomer units having the structural formula: -CHz'CH(COO )-. Historically, the use of sodium polyacrylates as thickeners and builders in synthetic detergents has been suggested (1) as early as in 1949. At about the same time, Edelson and Fuoss, (2,3) used sodium polyacrylates as model compounds in their basic studies illustrating the fundamental differences between such polyelectrolytes and simple electrolytes as sodium bromide. However, large scale commercial use of sodium polyacrylates in synthetic detergent compositions probably did not come into effect until almost two decades later, as is evident from recently published reviews (4,5) on patents
literature. In spite of this growing industrial use of polyacrylates in both commercial and institutional cleaner products, the published literature on the diverse functional benefits they confirm upon the end-use performance of a compounded detergent product is, at best, scanty (6-9). This paper describes a number of experimental studies carried out to identify the multi-functional benefits of these specialty detergent additives under simulated detergent-use conditions, and the likely role played by polyacrylates in basic detergency mechanisms. EXPERIMENTAL PROCEDURES
Materials
Polyacrylic acids used in this study were selected from the range of commercial (BF Goodrich Chemical) materials, whose analytical characteristics are shown in Table I. These were converted to their corresponding sodium salts by neutralization with sodium hydroxide to pH 10.5 andwere used without further purification. Polyacrylate concentrations given in this report are on dry polymer basis. Details on other materials and reagents are given under appropriate experimental procedures described below.
谷歌和软件翻译的就不要回答了,如果回答的好的话,我还会给加分的.

Subject:Inquiry about Alkali Resistant Primer-paint
Quick Dry Enamel base Grey Primer 1kg$.5kg$.20kg$.200kg$.
Enamel Thinner 1kg$.5kg$...20kg$...60kg$...200kg$...5000kg$.
Quick Dry Enamel Color Paint - Gloss Signal Red- Gloss Golden Yellow - Gloss Gold - Gloss Silver $.
这是什么?
DEAR SIR OR MADAM
WE ARE FAMOUS NAME IN THE FIELD OF INTERIER AND EXTERIER PAINT IN THE
KINGDOM OF SAUDI ARABIA.
WE HAVE OUR FACTORY AND ALSO SUPPLY THE PAINT CHEMICALS TO OTHER
PAINT FACTORIES.
SO WE NEED A PAINT CHEMICALS OF FULL RANGE TO IMPORT FROM CHINA.
SO IF YOU HAVE A FULL RANGE OF PAINT CHEMICAL FOR FACTORY SO WE
ARE INTRESTED TO IMPORT IT FROM CHINA.
SO FOR THIS YOU PLEASE SEND US YOUR COMPLETE RANGE OF YOUR
PRODUCTS FOR PAINT CHEMICALS.
AS LIKE SODIUM ,STREEN,PARMALITE,SETROSOL AND OTHER CHIMECALS
WHISH IS NEED FOR PAINT FACTORY.
SO YOU PLEASE SEND ME YOUR COMPLETE LIST OF YOUR FULL RANGE OF
PAINT CHEMICALS AND ITS PRICE LIST AND SPECEFICATION.
CAUSE WE USE ALOT OF CHEMICALS IN OUR FACTORY AND ALSO SUPPLY
TO OTHER FACTORIES SO THIS CAUSE WE NEED ALOT.
SO IM WAIT FOR YOUR SOON REPLY.
THANKS AND REGARDS

1.it's acid & alkali resistance
2.it's acid & alkali resistant
以上哪个是正确的,该句的意思是,它是抗酸碱的
3.It carries the characteristics of acid & alkali resistance
4.It carries the characteristics of acid & alkali resistant
以上哪个是正确的,该句意思是,它具备抗酸碱的特点
thank you