Product parameters

Tanyun PVB Types and Specifications:

Tanyun production of a variety of polyvinyl butyral resin PVB its physical specifications shown in the following table.

Specifications TB-03, TB-05, TB-06 is a low viscosity products;

Specifications TB-08, TB-12, TB-14 belonging to medium viscosity products;

Specifications TB-17, TB-20, TB-17T, TB-18T is a high viscosity of the product;

The specifications PVB has good compatibility with each other, and therefore can be used in combination.

(Note): 1. viscosity measurement, is 10 wt% PVB 95% ethanol solution at 20oC, use the Brook field viscometer measured.

2. For customer service, Tianyuan also be in accordance with customer needs special specifications PVB.

Tanyun modified PVB types and specifications

Tanyun modified PVB resin produced mainly for its Tg points of the increase, physical specifications are shown below.

TB-17T, TB-18T other specifications have excellent heat resistance, it can be applied to the printed circuit board adhesive.

TB-05T is suitable for printing inks and paint products.

TF-1 is mainly used for the preparation of a variety of high temperature, high strength adhesives, inks paints, enamels, and advanced coatings.

Also be used in the manufacture of high-strength diamond wheel, all kinds of plastic sheet and the like. Widely used in brake adhesive film, cigarette packaging film is advanced, aviation advanced adhesives and new composite materials.

The specifications PVB has good compatibility with each other, and therefore can be mixed with ordinary PVB use.

(Note) 1, TB-17T viscosity measurements, is 5wt% PVB in toluene / ethanol = 1/1 solution was 20oC, use the Brook field viscometer measured.

2, TB-05T viscosity measurements, is 10wt% PVB in toluene / ethanol = 1/1 solution was 20oC, use the Brook field viscometer measured.

The characteristics of Tanyun PVB

● General characteristics

Polyvinyl butyral (PVB) resin is the appearance of white spherical powder or multi-particle porosity, specific gravity of 1: 1; however, the packing density is only 0.20 ~ 0.35g / ml.

● Thermal Properties

Polyvinyl butyral (PVB) resin has a glass transition temperature (Tg) by a low degree of 50oC, 90oC until high degree of polymerization of between.

● Mechanical Properties

Polyvinyl butyral (PVB) film-forming resin is preferably, but after the film had very good tear strength, abrasion resistance, elasticity, flexibility, gloss and other properties; in particular, applied to the intermediate safety glass film, the glass has strong resistance to impact and penetration resistance to the currently still can not replaced by other materials.

● Chemical Properties

Polyvinyl butyral (PVB) resin film has good water resistance, alkali resistance and oil resistance (for aliphatic, minerals, animal and plant oils are resistant, but not resistant to castor oil) . Due within PVB containing high hydroxyl, good pigment dispersion, it is widely used in printing inks and coatings. In addition to its chemical structure contains both hydrophobic acetal group with vinyl acetate and a hydrophilic hydroxyl groups, so the PVB and glass, metal, plastic, leather and wood, etc. have good cohesiveness.

● Chemical Reaction

Any secondary alcohol reacts with chemicals, also with PVB will react, so in many cases the application of PVB, often with a thermosetting resin and used to play bridge with the hydroxyl of the PVB hardening effect, in order to achieve resistance chemicals, solvent and water and other characteristics. Of course, depending on the different proportion of PVB and mixed with thermosetting resin species may deploy different properties (such as hardness, toughness, impact resistance, etc ...) of the coating film.

● Safety Properties

PVB pure non-toxic and harmless to human body, with ethyl acetate or alcohols can be used as a solvent, the PVB is widely used in European and American countries for food containers and plastic packaging printing inks.

● Safety Properties

PVB as long as no direct contact with water, can be stored for two years without affecting its quality; PVB should be stored in a cool dry place and avoid direct sunlight, when PVB storage to avoid stress.

● SOlubility

PVB is dissolved in an alcohol solvents, ketones, esters and the like, the solubility in solvents of various types depending on their functional groups PVB composition changes, solubility table refer to the PVB solvent. In general, alcohol solvents are soluble only methanol Godin aldehyde product relatively insoluble; Ding aldehyde higher by more easily dissolved in ketone solvents and ester solvents; PVB are easily dissolved in ether (Cellosolve) solvents ; of PVB only partially soluble in toluene, xylene and the like aromatic solvents; not dissolved in a hydrocarbon of PVB (of hydrocarbon) solvent.

● PVB solution viscosity characteristics

Great species affect the viscosity of the solution by solvent PVB formulation and a solvent; in general, the higher the alcohol when the terms of the solvent, the molecular weight of the alcohol, the higher the viscosity of the solution PVB; xylene, toluene and other aromatic and hydrocarbon solvents (of hydrocarbon) can be a solvent diluent to lower the viscosity of the PVB solution; PVB on chemical composition on viscosity are summarized below, in the same solvent, at the same respective functional group content, the higher, the higher the degree of polymerization by solution viscosity; at the same solvent, the same degree of polymerization, the lower the higher the vinyl acetate butyrate aldehyde or by solution viscosity.

● PVB dissolution method

When using a mixed solvent, which is the first step of dissolving into aromatic solvent (e.g., xylene, toluene, etc.) or ester solvents (e.g. n-butyl acetate, ethyl acetate, etc.) are slowly stirred into PVB, PVB be dispersion, swelling and then adding an alcohol solvent (such as n-butanol, ethanol, etc.), then you can be shortened by heating the dissolution time; use this dissolution method, can be formed to avoid slug PVB (due after the formation of lumps dissolve PVB time will increase several times), which can accelerate the dissolution rate. And alcohol solvents are generally aromatic ratio 60/40 ~ 40/60 (weight ratio), the deployment of a lower viscosity PVB solution.

● Processing Properties

Although the PVB resin is a thermoplastic plastic, but not before adding a plasticizer almost no workability, a plasticizer is added once its workability is very easy. PVB with phosphoric acid lipids such as TBP, TCP; phthalates such as DOP, DBP, BBP. General purpose coatings and adhesives, by adding a plasticizer to alter the characteristics of the resin in order to meet the application requirements.

● Compatibility

PVB is compatible with several resins such as phenolic resins, epoxy resins, alkyd resins and melamine resins. Acetal higher degree of PVB and alkyd resins can be partially compatible; general PVB and low molecular weight epoxy resins are compatible, high molecular weight epoxy resins need to choose a high degree of acetalization of PVB to mutual capacitance.

PVB Applications

● Additive/Rheology Agent

Applicable standard：TB-06、TB-08

● Wash Primer/Etch Primer/Shop Primer

Applicable standard：TB-05、TB-06、TB-08、TB-05T

● Automotive Repair/Retouch Lacquer

Applicable standard：TB-03、TB-05、TB-06

● Blake-lining Binder

Applicable standard: TB-17T、TF-1

● Can Coating/Stoving Enamels/Foil

Applicable standard: TB-03、TB-05、TB-08

● Candle Coating

Applicable standard: TB-08

● Cardboard Packaging Impregnation

Applicable standard: TB-03、TB-05、TB-08

● Printing Inks

Applicable standard: TB-03

● Sublimation Ink

Applicable standard: TB-03、TB-05、TB-08、TB-17

● Flow Agent in Powder Coatings

Applicable standard: TB-03、TB-05、TB-08

● Sizing agent，alcoholic

Applicable standard: TB-08、TB-17

● Implosion Protection

Applicable standard: TB-03、TB-05、TB-06

● Leather Coatings

Applicable standard: TB-03、TB-05、TB-08

● Paper Lacquer

Applicable standard: TB-03、TB-05、TB-08

● Surface Finishes/Glossy Protection Paints

Applicable standard: TB-03、TB-05

● Printed Circuit Board Adhesive

Applicable standard: TB-17T、TB-18T

● Binder for Nonwoven Cloth

Applicable standard: TB-03、TB-05、TB-08

● Wood Coatings

Applicable standard: TB-03、TB-05、TB-08

● Wire enamels

Applicable standard: TF-1

Customization

We are able to develop custom-made products according to the clients'requests

● We have 4 R&D bases (Shanghai, Hangzhou, Suzhou, Yingkou), hundreds of synthesis leading experts and PhDs in chemistry.

● We own experienced R&D capability and rich experience in production, and provides you with a variety of organic chemicals, medical intermediates research, development, production, etc. on behalf of a range of high quality customized service.

● We have developed over 20 kinds of custom chemicals for the customers, and 3 kind products, such as copper chromite dehydrogenation catalyst, have already consigned a usage in batch with customer sign-off. 2 invention patents have been applied. 6 kinds of customized products, such as efficient curing agent, have been applied in pilot trials and pilot production by customers.

● More than 10 kinds of chemicals have been in R&D, such as nano-waterproof materials, oil additives and fine chemical intermediates.

Contact us

E-mail:ty@tanyunchem.com

Tel: +86-755-26406100

Fax: +86-755-26407171

Headquarters : No. 75,Xinhu Street,Xishi District, Yingkou,Liaoning, China 11500

Shenzhen Office : Room 18D,Floor 18，No. 111 Taizi Road, Shekou, Nanshan District, Shenzhen, Guangdong, China 518100