Introduction to emulsion polymer formula optimization design method

چهارشنبه 9 آبان 1397
13:08
xinli chemical

Introduction to formula optimization design method

There are many methods for optimizing the formulation of adhesives. Commonly used are single factor optimization method, multi-factor optimization method, orthogonal design, linear programming and improved simplex method.

(1) Single factor optimization method In the adhesive system of several components, (n-1) factors are fixed, and the level of one factor is gradually changed. The optimal level of the factor is evaluated according to the objective function, and the system is sequentially determined. The optimal level of each factor is finally combined with the optimal level of each factor into the best formula. Obviously, such a formulation is not the optimal formulation for the adhesive system. The single factor optimization method is the most basic method, but the actual problem is more complicated, and it should be preferred according to the sensitivity of factors to the influence of the objective function. Among the commonly used single factor optimization methods, there is a golden section method suitable for the extremum problem, namely the o.618 method and the fraction method, and the dichotomy method suitable for selecting the qualifying point problem.

(2) Multi-factor rotation optimization method The essence is to take one factor at a time, and select it according to the 0.618 method, and proceed in order to achieve the selection of various factors. From the second round, each time the single factor is preferred, only one test can be compared. The number of trials in this method is also high.

(3) Orthogonal test method This method is a multi-factor preferred method, which is characterized by selecting several levels of the same level for each factor, and scheduling a batch of tests according to the principle of uniform matching. Then, the test results are statistically processed to analyze the optimal horizontal matching scheme. The analysis of labor has a simple visual analysis method and an analysis of variance with reliability judgment. Currently, the orthogonal test method is the most used in the formulation design of adhesives.

(4) Improved simplex method The linear programming essence is the linear optimization problem, and the improved simplex method can solve the general linear programming problem. The extremum of the objective function is found when the objective function is a known linear form of the arguments and the elements satisfy a set of linear constraints (equations or inequalities). This method is one of the basic methods in the optimization method. Its advantage is that the calculation amount is smaller than the simplex method, the application is wide, and it is convenient for computer calculation.


برچسب ها: adhesives , formulation ,
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This will assist you to find out what you require

پنجشنبه 28 تير 1397
5:36
xinli chemical

Know the Right Ways to Pick Body Piercing JewelryBody piercing jewelry can of different types. Not all body piercing jewelry is created equal. There are several kinds of body jewelry for each and every piercing. Knowing where to find out the quality jewelry and the right terms for it as well as the diverse materials used in manufacturing the jewelry is quite significant. All of which will allow you to tailor the piercings without even breaking your bank. First and foremost, you need to know about the right terms for jewelry like barbell or curved barbell, acrylic emulsion tongue ring, straight barbell, naval ring. Apart from these, there are expander tapers and fake expanders, tongue piercing jewelry, crystal body jewelry, body piercing madoona monreo, nose screws, labrets, septums, nose bones, spirals, talons, claws, spirals, pinchers, eyelets, twists, etc.If you know about any particular type of body piercing jewelry that you want to buy, you can feel much more confident about buying the right items.

This will assist you to find out what you require and feel much more confident about purchasing it. Second, you need to be familiar with all the basic kind of jewelry i.e. plugs, barbells, captive ball rings, circular, curved, spiral and straight. Next, you need to decide what will work best with your piercing. Most jewelry can be worn in different piercings. For instance labrets and nose screws can be worn in the ear, and tongue piercing jewelry can be worn on the tongue. However, the surface piercings must only be used in the surface bars. Whether you are looking for ferido crystal body jewelry, tongue piercing jewelry, or eyebrow micro banana, or fake expanders or expander tapers or any other, you should certainly make sure that the jewelry has proper wearable.

For example, the ring diameter is measured on inside. On the other hand, the barbell length is measured between the balls. You must also inspect your own jewelry thereby making sure that the finish is smooth. Select the millimeter size or the proper gauge. Purchase the internal threads if you can pay for them, especially if your piercing gets aggravated quite easily. The internally threaded jewelry is of best quality than that of the externally threaded jewelry. The internal threads are all hollow ended and the screw parts are on ends. You must be wary of purchasing from the cheap mail stores or from any non specialty stores. Moreover, the piercing studies generally charge two to five minutes the amount that you can well expect to pay from body jewelry retailers. Organics, glass, niobium and titanium are generally more expensive than that of steel as they are of higher quality and are often better for your own piercing. On the other hand, acrylic, plastic and Lucite jewelry is also cheap and must not be worn for the extended periods.


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Isobornyl methacrylate is a very useful special monomer

يکشنبه 19 فروردين 1397
7:48
xinli chemical

Isobornyl methacrylate [IBO(M)A] is a very useful special monomer. The product has a unique bridged ring structure giving it special physicochemical properties: low viscosity, high boiling point, low surface tension (low shrinkage), high glass transition temperature, low chroma, high refractive index, good hydrophobicity, and many Resins, solvents, and pigments have good compatibility. Low toxicity, non-flammable.

Widely used in Europe, America, and Japan, China has been vigorously promoting its use in recent years. Its special features are: increasing the hardness of the film-forming substance while maintaining and increasing its elasticity, and can improve the polymer's luster, vividness, adhesion, leveling, friction, aging and corrosion resistance.

(1) Used for radiation curing paints, inks, adhesives,emulsion, used as reactive diluents.
(2) Participate in the synthesis of high-quality acrylic resins, polyester resins, polyurethane resins, oligomers, alkyd resins, and the like.
(3) Used in the manufacture of various waterproofing emulsion, coatings, powder coatings, inks, adhesives, etc., and in painting, printing, limousine, motorcycle, computer, mobile phone, home appliances, instrumentation, optical discs, optical fiber, furniture, Floor, glass jewelry, metal cover, engineering plastics, flexible plastic film, plastic film, inkjet, pressure sensitive adhesive, sealant and other aspects are widely used.


برچسب ها: waterproofing emulsion ,
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Three main type of chemical paint

دوشنبه 13 فروردين 1397
7:16
xinli chemical

Polyurethane Coatings (PU)

Its advantages: 1: Fullness, hardness, transparency, have a better performance. 2, stable performance, product stability. 3: It can cooperate with other paints to make different performances. It is a kind of paint with excellent overall performance. The application is also the most extensive.

Its disadvantages: 1: poorer than NC lacquer. 2: Fullness, hardness worse than PE paint.

Common process: 1, PU bottom, PU surface: the most common process. 2: PE bottom, PU surface: showing high fullness, strong anti-sag, suitable for high-end furniture production. 3: PU bottom, NC surface: There is a good fullness and quick construction. 4: UV bottom, PU surface: The most promising process, high efficiency, excellent product quality. 5: PU bottom, W side: There is a certain degree of fullness, there is a strong environmental protection.

UV Curing Coating (UV)

Its advantages: 1: It is one of the most environmentally friendly paints. 2: The solid content is extremely high. 3: Good hardness and high transparency. 4: Excellent yellowing resistance. 5: The activation period, high efficiency, low coating cost (normally half of the conventional coating cost) is dozens of times the conventional coating efficiency.

Its disadvantages: 1: requires a large investment in equipment. L2: There must be a sufficient supply of goods to meet its production needs. Continuous production can reflect its efficiency and cost control. 3: The effect of the roller coating topcoat is slightly worse than that of the PU topcoat product. 4: The roller coating product requires the coated part to be flat.

Common process: 1: UV bottom, UV surface. 2: UV bottom, PU surface (the most widely used).

Water-based adhesive paint (W)

Its advantages: 1: It is one of the most environmentally friendly paints. 2: The construction is extremely convenient. 3: Fast drying time and high construction efficiency. 4: The activation period is longer. 5: After the film is dry, there is no odor.

Its shortcomings: 1: The paint film is relatively thin, fullness is not enough. 2: Hardness is not high.

Common process: 1: water-based, water-based surface. 2: PU bottom, water surface. ,

Paint Product Appearance Standard Appearance/Visual Inspection

Uniform color, no color difference, no sleek and masculine spray paint surface smooth, no rough feeling of hand touch, uniform particle size, uniform gloss, no contact marks when pressed with the wrapper, smooth surface, even and full spraying, no flow Hanging, wrinkled, bubbling, shrinkage, delamination, fog, white, no oil, scratches, no tearing paper, no breakage, no pollution, edge paint line must be neat, color separation to be Clear, clean, no need to spray the site must be clean and stain-free, all grades should be sprayed and meet the requirements of color, gloss and other aspects.


برچسب ها: Water-based adhesive , paint ,
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The industry ushered in a new round of rapid development

چهارشنبه 8 فروردين 1397
7:56
xinli chemical

Overcapacity This is a malformed business model. However, when backward production capacity is eliminated and supply and demand reach a new balance, overcapacity is over

and the industry ushered in a new round of rapid development. Overcapacity is due to the low threshold and homogeneity of the paint industry, but excess capacity is not a

deadlock. Under the guidance of huge market demand, breaking the bottleneck of production capacity has greater significance for brand enterprises. However, paint companies

can try to change some of the original operating model, so that companies "back to life."

A change: Colors and styles are the salient features of all fashion products, but also the most eye-catching and moving. A well-known acrylic paint brand took the lead in

launching the "color and shape" revolution. The process also has a strong sense of design - the original porcelain, glass and other different design elements in the

acrylic paint, so that the acrylic paint product is more full of color tension and expressive, change the color of the customary wood color, bold and bold Color, very

explosive. This is very tempting for young people who advocate fashion.

Second change: In the concept of many people, paint is generally made of bamboo and wood, but at the moment of continuous innovation and constant trial of new things, the

material of the paint has gradually become diversified. A few days ago, in the market to visit and found that there are many material alternatives and powerful coatings on

the market. For example, the natural environment-friendly and durable chaff outdoor coatings, acoustic damp-proof cork coatings, and even luxurious leather coatings.

Three changes: The paint industry has always relied on traditional production processes. Because most companies lack the ability to reform and innovate, the coatings

industry has experienced high costs, low efficiency, high costs, poor quality, and long lead times. Coating companies should combine the development trend of the industry,

draw on the advanced technologies of developed countries, formulate practical development plans, give full play to the advantages of products and processes, realize the

economical, practical and efficient energy-saving of coatings, and innovate coating on the basis of traditional technologies. development of.

Four changes: to measure whether an enterprise is advanced, whether it has market competitiveness, and whether it can continuously lead the competitors according to the

important indicators that the technology leader can create high-quality products and technologies. With the rapid development of the coating market in China, the

application and R&D of core production technologies have become the focus of attention in the industry, and the innovation of coating products has also begun to change

from decorative to functional. After experiencing a number of style appeals and material disputes, the Chinese paint market has truly returned to the “functional theory”

.

Five changes: The logistics problem of paint companies is flawed. It is an indisputable fact that hinders the development of the industry. However, it does not mean that

hard injuries can only develop into stencils and linger. For the collision process in the logistics process, the extrusion can easily cause scratches, wear, or even

deformation of the coating. Coating companies can innovate. In addition, the product's transportation channels should be opened up, or the establishment of supporting

logistics solutions, or joint third-party logistics companies.

Six changes: The slow efficiency of acrylic paint companies in dealing with customer after-sales problems is a major problem that plagues the industry, and it is of utmost

importance to establish a quick after-sales service mechanism for enterprises. Coating companies should be good at using modern information technology to make after-sales

services more convenient. For example, by building a company's repression system, customers' orders or feedback information can be promptly transferred and processed in a

timely manner. Wechat QR code scanning can interact with consumers at the fastest speed. Custom coating companies must pay full attention to after-sales service and brand

their products to bring more value-added services to customers.Learn more about at http://www.acrylicemulsion.net/
برچسب ها: acrylicemulsion , paint ,
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How to solve the problem of solidification of acrylic waterproofing emulsionn

چهارشنبه 1 فروردين 1397
5:54
xinli chemical

How to solve the problem of solidification of acrylic waterproofing emulsion
Because acrylic waterproofing emulsion has a certain bearing capacity, is not easy to damage, and can make the structure more complete, especially suitable for the solidification of concrete, we analyze the solidification problem for you from a professional point of view.
No matter what kind of curing agent, it is only used to cure the main agent and auxiliary materials. It can be quickly dried to increase the adhesion and hardness of the paint surface, and improve the chemical stability and corrosion emulsion stance of the construction surface. However, there will be a certain gap in the proportion of various curing agents. If the proportion is inappropriate, it will cause the curing agent to cure. How to solve it?
If the main material is added with curing agent and there is no solution after curing, it can only be scrapped. Ingredients need special attention, how much with the number of distribution, in order to ensure the performance of the curing agent, if the long-term curing agent opened and found to be cured, it can not be used, can only be lost.
acrylic waterproofing emulsion has a good compatibility, soluble in alcohol, ester, ketone solvents, its use is very wide, mainly used in it? We can refer to the following:
1, high-grade ink or solvent ink grinding emulsion, can be used alone or in combination with acrylic waterproofing emulsion;
2, gravure printing decorative paper, fireproof paper, plastic film and other ink;
3, as a solvent ink grinding emulsion;
4, used as acrylic waterproofing emulsion polymerization support emulsion;
5, for the production of water-based gloss oil;
6, cigarette package Varnish, increase gloss.
In addition, our acrylic waterproofing emulsions are also used in printing, adhesives and other industries


برچسب ها: waterproofing emulsion ,
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