Plasticizer
A plasticizer ( UK: plasticiser) is a substance that is added to a material to make it softer and more flexible, to increase its plasticity, to decrease its viscosity, and/or to decrease friction during its handling in manufacture.
Optimisation of plasticizers for gypsum applications - ZKG
Following their adoption in cementitious systems, superplasticizers based on polycarboxylate ethers are now increasingly being selected for gypsum applications. Binder-specific additive optimisation produces plasticizers with an enhanced water-reduction capability and simultaneously reduced setting times. In recent years, PCE-based plasticizers
Evaluation of properties of gypsum plaster-superplasticizer
Abstract The effect of SMF-based superplasticizer on the performance of β-hemihydrate plaster has been studied. A 0.6 wt% SMF content contributes 69% enhancement in the compressive strength of...
Plasticizers: Types, Uses, Classification, Selection & Regulation
Most commonly used phthalate plasticizers include: DEHP: Low molecular weight ortho-phthalate. Still the world’s most widely used PVC plasticizer DINP, DIDP: High molecular weight ortho-phthalates Aliphatic dibasic acid Esters – These include chemicals such as glutarates, adipates, azelates and sebacates.
Eastman Product List for General Purpose Plasticizers
Eastman TOTM plasticizer (Tris (2-Ethylhexyl) Trimellitate) is the ideal PVC plasticizer for use in applications where low volatility is of supreme importance, such as wire and cable insulation and interior automotive. It also has properties that are required for dishwasher gaskets and photograph storage.
- Does superplasticizer affect compressive strength of modified gypsum?
- A 0.6 wt% SMF content contributes 69% enhancement in the compressive strength of modified paste as compared to reference sample. The influence of superplasticizer on the hydration characteristics and morphology of the gypsum crystals have been studied by XRD, TGA, SEM and Electrical Conductivity techniques.
- How to increase flexural strength of gypsum plaster?
- The addition of 10% latex increased the flexural strength of the β-hemihydrate plaster from 8.9 MPa to 11.5 MPa. Another way for increasing the mechanical properties of gypsum plaster while retarding moisture penetration may consist in use of inorganic salts and reinforcement using synthetic or natural fibres.
- Does superplasticizer improve gypsum hydration?
- These studies showed that superplasticizer accelerates the rate of hydration and leads to the formation of a dense and well compacted texture of crystals, thereby imparting high strength and better water resistance to the gypsum matrix than the reference material. 1. Introduction
- Does superplasticizer add gypsum matrix?
- The reduction in water content and modification of β-calcium sulphate hemihydrate through superplasticizer addition which lead to a perceptible improvement in the strength of the plaster by intensification of gypsum matrix, contributed to this phenomenon. Fig. 6. Thermogravimetric curves of hydrated G1 and G6 samples. 3.6. X-ray diffraction studies
- Are Polycarboxylate ethers suitable for gypsum?
- Following their adoption in cementitious systems, superplasticizers based on polycarboxylate ethers are now increasingly being selected for gypsum applications. Binder-specific additive optimisation produces plasticizers with an enhanced water-reduction capability and simultaneously reduced setting times.
- Does styrene-butadiene polymer latex increase flexural strength of gypsum based?
- Avalos et. al. , modified the microstructure as well as the flexural behavior of gypsum based composite material using styrene-butadiene polymer latex. The addition of 10% latex increased the flexural strength of the β-hemihydrate plaster from 8.9 MPa to 11.5 MPa.
