Shandong Longsheng Masterbatch Co., Ltd
TEL: +8618053491991
Categories
Contact Us

Add:No.127, Yanzaohang Village, Xuyuanzi Township, Qingyun County, Dezhou city, Shandong Province

Fax:+86-531-88257710

Mob:+8618053491991

Email:twinklesheng@gmail.com

Web:www.masterbatch-ls.com

News
Home > News > Content
In-depth Study On The Black Parent Grain
Nov 06, 2018

Plastics can not be processed without filling the master material, but filling the master material is a double-edged sword, the amount of which is very particular.
In the case of black master materials, if too much is added, the cost of plastic products will increase, and the color of the products will be destroyed; The amount of addition is too small, the anti-aging aid and the black base of carbon black can not be fully integrated, so the amount of black base material is an important technology.
In the process of forming plastic products, black mother grains are used by almost everyone. They are used for dyeing, anti-aging, conductive products, etc.. Many problems in use often trouble us. The small editor will be common concerns of some issues discussed, hoping to bring you a harvest.
1. What is the composition of the black parent grain?
The materials that make up the black parent grains are: A. carbon black; B. Carbon black carriers; C. Carbon black moisturiser; D. Carbon black dispersants; E. Other processing Auxiliaries.
2. In what ways does the black granule have outstanding performance?
In the area of plastic products dyeing, only 0.6 % -0.8 % of the black mother particles, will be extremely black, and no more black. According to experimental data, products used outdoors in Xinjiang, such as those that need to rely on black parent grains to prevent aging, only need to use high-quality black parent grains(rather than back materials as carriers, white oil moistening, calcium carbonate dispersion, etc.). The carbon black content in the product reaches 2-2 .5 %, that is, there are 5-6(weight) of carbon black 40 % of the parent grains per 100 kg of raw materials, which far exceeds any anti-aging product. The product life can reach more than 10 years. That's why drip irrigation products, water supplies, communication cable products are all black. In addition, carbon black has a special contribution to the increase in the strength of products and the enhancement of conductivity.
3. How to judge the quality of the black granule from its appearance?
Good quality of black matte lustre and soft and hard moderate. Excessive oil is too bright, indicating that too much oil is placed, and the lustre is dim to indicate that the carrier is too much calcium carbonate or calcium carbonate. The good quality of the black female particles with teeth bite, soft with brittle. Too soft indicates that there are too many organic dispersants, soft and loose indications that the carbon black concentration is low and contains more calcium carbonate, too brittle indicates that the carbon black content is too high, or the carrier is a feedback.
4. How does the use of black master material after the surface of the product have a small hemp surface?
If the hemp surface is a protruding small tip, it shows that the ability of the product processing equipment to disperse the parent material is limited, and the carbon black agglomeration particles in the parent material can not be cut evenly. The lower concentration of the black parent particles should be used. Or the mother grain has too much calcium carbonate and too much white oil, and the single screw and double screw machine are squeezed out under high pressure to form small blocks that can not be dispersed. If the hemp surface is concave, it is caused by the volatilisation of small molecules in the parent material, it is clear that there is more oil.
5. Can black master material containing calcium carbonate be used?
Let's look at it together. First of all, if the calcium carbonate fineness of 1000 orders in the black master material, the content is within 10 %, for products without outdoor exposure requirements, it is a good choice and the price is low. The appearance of the product is good, the carbon black dispersion in the processing is uniform, the blackness is not affected, and the impact on the product strength is small. If the calcium carbonate fineness is less than 1000 mesh, the luster may appear dim, the surface is rough, and the product strength decreases. If the amount of calcium carbonate of 1000 items exceeds 10 %, the surface of the product is not light and gray, the blackness is not enough, and the strength of the product decreases. Second, in any product that has anti-aging requirements for outdoor use, containing calcium carbonate is not good, depending on the product's life choice. Finally, the use of such black parent particles requires equipment that is willing to use high shear capacity.

  • Contact Us

    Add:No.127, Yanzaohang Village, Xuyuanzi Township, Qingyun County, Dezhou city, Shandong Province

    Fax:+86-531-88257710

    Mob:+8618053491991

    Email:twinklesheng@gmail.com

    Web:www.masterbatch-ls.com

  • Categories
  • Copyright © Shandong Longsheng Masterbatch Co.,Ltd All Rights Reserved. QR Code