Typical recipe description
One, universal color mother
In the early 80 s, Hong Kong Canon company launched the "universal masterbatch" this color masterbatch for dedicated masterbatch, scope of application is wide, especially can be used for a variety of engineering plastics coloring.
The main difference between a general color and a special color parent is:
Common carrier of the masterbatch can apply a variety of color of the resin, the carrier can use low molecular polyethylene wax, EVA, K resin, metal soap, can also be the above two or three kinds of carrier distribution. Maximize pigment content (as high as 60% - 60%, dedicated masterbatch was 20% - 30%), so the masterbatch dosage as small as possible, in order to avoid and incompatibility of colored resin.
General purpose color granules are used only 1% of injection molding products. Due to its low usage, the injection molding products contain less resin content, and of course its impact on plastic products is negligible.
The detailed production process is briefly described as follows: in order to better apply the polarity and non-polar resin, a small number of EVA is usually added.
Black and white female formula
A, choose the four recipes of TiO2
Formula one
TiO2 ba01-01, 400G (40%)
Dede powder (barium white) B302 300 g (30%)
Whitening agent KSN 0.2 G (0.02%)
YA - stearate Ⅱ 30 g - 200 (3%)
Calcium stearate 9.8 G (0.98%)
LLDPE2433 tianjin MI = 33 100G (10%)
LDPEQ400 (2F4B MI = 4) 160G (16%)
* ratio of 3%
Macromolecular BBS color/colour parent/colour powder WeChat group, please add group manager: 18666186648
Formula two
(1) titanium powder ba01-01, 690G 69%
(2) phthalein Blue ICI. - 6
0.6 G 0.06%
(3) fluorescence whitening agent KSN 0.6 G 0.06%
(4) stearyl calcium 10G 1%
(5) stearic acid YA - Ⅱ 30 g - 200-3%
(6) 20PE Q400 268.8 G / 1000G 26.88%
* blown film with 4%
Formula three
(1) titanium dioxide, 200 grams, 70%
(2) fluorescence whitening agent KSN 0.2 G 0.02%
(3) light agent EBS
25 g 2.5%
(4) LLDPE 2433 150 g 15%
(5) LDPE Q400 124.8 G / 1Kg 12.48%
* 4% blown film
Formula of four
TiO2 62.7%
LDPE f7b (1) 18.4%
LLDPE (7042) 4.6%
PE wax 12%
A 2.3 percent oleate
* double screw
145 ℃ 160 ℃ 170 ℃, 180 ℃, 190 ℃ 200 ℃ 195 ℃
Demand: 63% of TiO2 content is equal to about 7.5
Dispersion, opening, heat sealing, printing
B, general white female
PEwax 22% (dairy mountain)
TiO2 64% (climb 101)
Zinc stearate
C.B. cadmium red and other 2%
A small amount of white oil, stirring and then entering three rollers
The ratio of 1:100
ABS no problem PP laundry (MI = 35) with stripes (white)
The reason: PEwax is so many that it often causes the first to melt and produce the stripes. After change: PEwax is reduced to 15%, no problem with PP. Choose LLDPE is good, shear force is bigger, easy disperse.
C, black color formula
1) C.B. Cabot N234 45 percent
2) Pewax Beijing chemical university is 12%
3) the LLDPE MI = 20 to 43%
Three, white coating mother grain
The main reference of the white coating is mainly for the coating of the composite film, such as instant noodles.
Titanium dioxide (r-type) d50%-70%;
Low molecular weight, 2%-5%.
Polyethylene (1C7A) 20% to 30%;
Proper amount of coupling agent;
CaCO3 5%;
Other right amount.
Four, fill the mother's grain
The reference formula for filling the mother's grains is as follows:
LDPE 10 titanate coupling agent TTS 1
LLDPE 10 low molecular weight polyethylene wax 4
HDPE 5 stearic acid 2
CaCO3 75
According to the user's requirement, the number of mother grain is two to thirty
Five, the cooling mother grain
Cooling masterbatch is mainly used in polypropylene spinning in the past, when the use of polypropylene resin molecular weight, high viscosity, higher spinning temperature as high as 300 or more to get the normal production, so easy to decompose additives, pigments and other manufacturer (there are special spinning of high melt index polypropylene resin).
The so-called cooling masterbatch, is to reduce the molecular weight of polypropylene functional masterbatch, generally it can decrease the temperature of polypropylene spinning 30-50 ℃. Improved spinning process.
The auxiliary agent used for cooling mother is peroxide. It's usually triggered by A. It's the second tert-butyl peroxide (DTBP). It's a microyellow transparent liquid. The boiling point of 110 ℃. Ignition point 182 ℃. Decomposition temperature: 193 ℃ (half-life 1 min) 126 ℃ (half-life 10 h).
The cooling mother grain reference formula is as follows:
PP resin (MI = 3) 100 antioxidants 0.3
DTBP 3 dispersant 1
The cooling mother grain is added between 0.5% and 5% in spinning
The key to producing hypothermia is to squeeze out temperature control so that the peroxide is not decomposed.
At present, the mother is mainly used to enlarge the application range of polypropylene, such as polypropylene large thin wall products (such as washing machine bucket), to improve its current performance.
Six, flame retardant mother grain
With the rapid development of plastic products, plastic in construction, transportation, electronics, electrical, coal mine is finding wider and wider application, so the flame retardant problem has drawn attention of the society.
There are several kinds of fire retardants in plastic:
Inorganic flame retardant, aluminum hydroxide, magnesium hydroxide, antimony trioxide, etc.
(2) organic flame retardants, bromine biphenyl ether (DBDPO) is a kind of high bromine content of additive flame retardant, application is very wide, can be used for PE/PP/PS/PETABS etc., the disadvantage is that poor weather resistance. In addition, there's BDDP/hexabromodiphenyl ether;
Other flame retardants, chlorinated paraffin, red phosphorus, etc.
The flame retardant option should pay attention to the following matters:
The use of different flame retardants to play synergy;
The flame retardants and other additives in the mother's grains do not react to the chemical reactions, and they are compatible with the resin.
The thermal stability is excellent.
Reference formula for flame-retardant mothers:
Carrier resin (HDPE) 100
Fire retardant (decabromodiphenyl ether) 40
Auxiliary antioxidant (DLTP) 0.2
Combined flame retardant (antimony trioxide) 40
Dispersant (low molecular weight polyethylene wax) 1
Main antioxidant (1010) 0.1
Lubricant (stearic acid) 1
Night light
Luminous pigment is, in fact, a kind of super long afterglow luminescent powder, it after natural light, light, ultraviolet light, such as to store energy, and have strong luminescence brightness, is a new type of light-emitting materials.
The luminescent material can continuously after irradiation light disappear for a period of time in the form of visible light release of stored energy, it is a kind of rare earth aluminate, its application value is far higher than the traditional zinc sulfide luminous powder.
Compared with the traditional zinc sulfide luminescent powder, the main features are:
The duration of the afterglow will absorb ordinary visible light (such as light, natural light) 10-30min, which will be able to reach the saturated state with no light source for more than 12h.
Start with high brightness.
It is non-toxic, harmless, pollution-free and contains no radioactive elements.
The performance is stable and the circulation life is more than 10 years.
Here are some things to watch for in the use of night light:
The usage is usually 10% to 20%, and the larger the amount, the brighter the brightness and the duration.
Strong hardness, avoid direct contact with the equipment, avoid wear equipment, and lead to lower luminance intensity.
If you want to add color, choose carefully to avoid reducing the intensity of the glow.
Luminous pigment is mainly used for luminous signs, such as light-emitting PE band, can be widely used in factories, hotels, restaurants, ships, trains, underground parking lot, highway traffic, etc., logo or made into all kinds of emergency safety sign, easy to use and safe and reliable.
8, marbled mother grain
Marbling masterbatch produce the principle of marbled pattern is that of the matrix resin and shading resin is significant difference between the two incompatible and melting point, viscosity of resin, when processing caused by uneven dispersion and the processing flow of trace stripe and corrugated, such as the decorative pattern of marble. Plain marble pattern mother grain has black, white, coffee tricolor, and colorization colorization and the color of the mother grain is big, ability form clear marble grain.
The marble furniture that sells on the market pattern masterbatch points with two kinds of PP and ABS, according to the analysis of the composition is as follows: nylon or polyester, PP masterbatch carrier for both the melting point is 220-230 ℃; ABS with masterbatch carrier polyester, melting point is 257 ℃. Its products are mainly used as decorative materials to make it feel like marble.
Two ways of stretching the mother's grain
The bread, candy, cold drinks, ice cream on the market, such as packaging, pearl film mostly, but its not used in production of masterbatch, pearl powder, but natural calcium carbonate containing high dry evenly distributed in polypropylene (PP), the ratio of its use for masterbatch, PP = 1:7.
Extrusion process of calcium carbonate particles were distributed evenly, and in the process of two-way stretch, the formation of tiny holes, make the film become opaque milk white, and therefore by 0.906 g/cm3 density reduced to 0.650 g/cm3, the special white opaque film, due to its relatively rough surface is PP with good printing performance.
BOPP production process is as follows:
When the BOPP bead is used, be aware that the calcium carbonate is easy to absorb, so it should be pre-dried when used.
Ten, the fiber spends some paint
The fiber is actually a pigment that is cut to a certain length from a colored fibre, which is mainly viscose or polyacrylonitrile fibre.
They are no melting point, and decomposition temperature greater than 300 ℃, thus can not melt in the plastic molding, don't break down to form a uniform fibrous colored flowers dotted.
Spend fiber pigment production process roughly, viscose first or polyacrylonitrile fiber with high temperature resistant dyes dyeing processing, then cut off, adding dispersant, a quick fibre take fiber. In the end, the pigment mother granule is made by the method of the production of the color matrix.
Spend fiber pigment is mainly used for decoration materials, toys, television, telephone cabinet, etc., the decorative pattern of surface rendering subtle color fibrous, compared with the traditional pigment having a unique style.
