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Blend two phase structure in a row

by:CSSSLD     2021-01-23
Wen injection tooling/VIP
blend two phase is two consecutive components in the blend of two phase as the continuous phase. Two continuous phase size according to its content, and mainly can be divided into continuous phase and continuous phase. According to the continuous state of continuous phase, two phase continuous structure can be divided into layered two successive structure and fibrous structure.


blend of layered continuous structure blend of layered structure refers to the consecutive continuous phase in laminar dispersed in the continuous phase. Layered structure according to the specific needs can be designed to continuous phase or lamellar spacing distribution from the main surface of the bedded enrichment in the continuous phase. Which the former is mainly suitable for plastic block blending modification, which is very suitable for plastic antistatic blend modification of lamp flame retardant blending modification and wear resistance, hardness, anti-aging and other blending modification. For these blending modification, blend of layered structure than the same component island structure modified by many.

interpenetrating network structure. Interpenetrating network structure is made up of two or more than two each other through crosslinking network formed by micro phase separation structure. Crosslinking of interpenetrating networks can be chemical crosslinking, can also be a logistics crosslinking.

blend of layered structure in a row. Layered structure belongs to the two phase structure in a row, two phase stratified flow and each other to interface separately in a row, belongs to the multi-layer flow. According to the fluid mechanics theory, the different two types of fluid viscosity, always according to the regular exercise of soft bread, namely low viscosity fluid to automatic coating fluid of high viscosity, so need the energy of the small, namely the principle of minimum energy. And laminar blend of two phase is viscoelastic, soft package hard rules. To make two phase formation is normal laminar flow, the dispersed phase was enshrouded, the viscosity of dispersed phase must be greater than the viscosity of continuous phase and continuous phase that it doesn't be coated. The viscosity of dispersed phase is greater than the continuous phase, not broken melt under shear is dispersed droplets, and easily under the action of shear force, elongated and orientation, scattered cambium-like layer.

blend fibrous structure in a row. This structure is to point to two phase in the continuous time continuous phase with fibrous form a continuous phase of two-phase structure continuously, continuous structure of fibrous structure blend modification of plastics machinery and processing modification such as the favor.

in situ composite material is a kind of thermoplastic resin and cause the liquid crystal polymer blend. In situ composites is TLCP as strengthening agent, through in the thermoplastic polymer matrix in situ formation of micro fiber distribution, achieve the enhancement purpose to the matrix mechanics performance. For small TLCP micro fiber diameter and length is big, so the length to diameter ratio is very high, so the enhancement effect is significant.

in TP and TLCP blend of TLCP micro fiber distribution is not existing in front of the blend processing. But in the process of blend extrusion or injection formed in situ. In the in situ composites, because of TLCP with unique rheological behavior, its molecular structure of rigid easily along the stretching direction of flow and the external force orientation, orientation and form microcrystalline micro fiber dispersed phase. When the blend melt cooling, due to the orientation of TLCP fiber slow relaxation, thus be solidified in the products. Liquid crystal micro fiber has higher than GF length to diameter ratio, so that the mechanical properties of in situ composites is very excellent.
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