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With China Plastic Machinery
With China Plastic Machinery
Filling material refers to an inert pigment added to a pigment or colorant to reduce the price or to add paint. Inert pigments that can obtain the desired characteristics or enhance the performance after being added are classified as additives.
Filling material is also called filler or wadding. One of the clothing accessories. The material filled between the fabric (material) and the lining of the clothing as a core. Commonly used are cotton wadding, silk floss, camel hair, down, acrylic cotton, polyester hollow cotton, etc., to enhance the warmth and insulation function of winter clothing, and sometimes as a process to enhance the effect of clothing (such as the three-dimensional effect of the pattern of patch embroidery). Using shaped cotton, camel hair, flannel as filler or combining fabric, filler and lining into one can simplify the production process and meet the characteristics of large-scale production of ready-made clothes.
In the industrial production of cement and other building supplies, there are many types of fillers. Crushed natural acid-resistant materials, such as neutral feldspar, quartz hornblende, quartzite, dense feldspar, diabase, powdered quartz, ceramic powder, etc., or artificial stone materials, such as cast rock, etc., can be used as acid-resistant fillers for water glass type acid-resistant cement. According to the type of filler used, it can be divided into quartz acid-resistant cement, diabase acid-resistant cement, etc. The requirements for fillers are strong acid resistance, acid resistance should be greater than 93%, and good adsorption capacity for water glass. When used as an acid-resistant lining, it has strong adhesion to other materials, and the fineness requires that the 0.08mm square hole sieve residue does not exceed 15%, and the 900 holes/cm sieve residue does not exceed 1%. However, the fineness should not be too fine, otherwise the amount of water glass should be increased accordingly, causing shrinkage to increase and corrosion resistance to decrease.
Common specifications of fillers are: S-type, L-type, square, V-type, and round. EPE filler is a new type of environmentally friendly foam material with high-strength buffering and earthquake resistance. It is flexible, light, and elastic. It can absorb and disperse external impact force by bending to achieve the buffering effect, overcoming the shortcomings of ordinary foam rubber, such as fragility, deformation, and poor resilience.
EPE material, also known as pearl cotton, is a buffering packaging material. Packaging fillers need to have good impact resistance and invariance of buffering effect, etc., in order to be widely used in high-end furniture, household appliances, instruments and meters, craft gifts, wood products, glass ceramics, building waterproofing, carpet interlayer, sound insulation, travel bags, precision parts, etc.
Fillers are often made of (EPE pearl cotton), and other materials (such as EPS) can also be used. Jushang EPE filler is widely used for space filling. Because of its unique shape, it can effectively play a buffering role. Filler EPE material is lighter than other packaging materials and padding materials, has good material elasticity, can be reused continuously, and can reduce freight costs. It can be bulked or bagged (small packages) as needed, reducing the trouble of using fillers. At the same time, EPE fillers have a series of excellent use characteristics such as heat preservation, moisture resistance, heat insulation, sound insulation, anti-friction, anti-aging, and corrosion resistance. The pink EPE raw material with antistatic agent has significant antistatic properties. EPE is also a recyclable environmentally friendly material.
Colloidal calcium carbonate is a new type of filler, the main feature of which is fine particles and a large surface area. Compared with natural calcium carbonate and light calcium carbonate, colloidal calcium carbonate has the advantages of large oil absorption, high transparency, good brightness and good stability, so it has been widely used in printing inks. In practical applications, colloidal calcium carbonate is divided into general colloidal calcium carbonate and transparent colloidal calcium carbonate. The latter has finer particles and has greater oil absorption and transparency. Colloidal calcium carbonate is currently a commonly used filler in resin-based printing inks.
Aluminum hydroxide is a typical amphoteric compound that is insoluble in water but can be dissolved in acid and alkali solutions. Aluminum hydroxide was once widely used in oil-based inks. It not only plays the role of a filler, but also a good thickener. Aluminum hydroxide has good dispersibility and strong elongation, but it is also very easy to cause the gelation of ink. At present, it has been gradually replaced by colloidal calcium carbonate.
Barium sulfate has a large relative density. Using it in ink can improve the rheological properties of some relatively light pigments. However, excessive use will affect the printability of the ink.
The binder for manufacturing superhard resin abrasives (tools) is composed of a binder (resin powder) and various fillers. Because the resin itself is brittle and has low mechanical strength, it cannot be used alone to make abrasives. Fillers must be added to improve its original performance. In other words, adding fillers can improve the thermal conductivity of the abrasive, improve the hygroscopicity of the abrasive, improve the grinding performance of the abrasive, and adjust the hardness and strength of the abrasive. Therefore, adding fillers to the binder is essential.
There are many types of fillers and various technical conditions. Here we only introduce several commonly used fillers: copper powder, aluminum powder, iron powder, tin powder, iron oxide, chromium oxide, ferrous oxide, zinc oxide, magnesium oxide, calcium oxide, aluminum oxide, calcium carbonate (lightweight), cryolite, polytetrafluoroethylene, graphite, cerium dioxide, molybdenum disulfide, copper oxide, silicon carbide (micropowder), aluminum oxide (micropowder), manganese dioxide, etc. The technical conditions are shown in the table below.
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