Two-component stucco materials and their uses
A two-component, stucco technology, applied in the direction of cement production, other chemical processes, chemical instruments and methods, etc., can solve the problems of stucco volume reduction, composite pin performance degradation, etc.
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Embodiment 1
[0129] Example 1 (contrast)
[0130] First, a resin component (A) of two-component stucco material is provided: 34.5 g of acrylate resin and 44.2 g of quartz sand, 18.5 g of aluminate cement and 2.8 g of hydrophobic gas phase Silicon is homogenized into a non-bubble-free porous material under the dissolved. The composition of the acrylate resin mixture is given in Table 1 below. The resin component (a) obtained in this manner is introduced into the tub.
[0131] Table 1: Composition of acrylate resin mixtures
[0132] Mass percentage Carbamate methacrylate reactive diluent 97.31 Accelerator 2.30 Jiaer catechol 0.27 4-tert-butyl coat 0.09 Tempol 0.03
[0133] As the cured agent component (B) of the two-component stucco material, aqueous petrophylated benzoyl suspension having 35 weight percent solids is used, including 64% by weight of quartz powder form, 1% by weight of gas phase 2 Silicon oxide and 35% by weight peroxide. The shaped benzoyl...
Embodiment 2 to 14
[0138] The stucco material was prepared in the same manner as shown in Example 1. The each of the 5 volume percent aluminate cement was exchanged. Therefore, the volume of the resin material is maintained constant. The calculation of the formulation is based on the alumina density of 4g / cm. 3 . All alumina used are commercial products.
[0139] The polymerized shrinkage was determined for a stucco material obtained by mixed resin components (a) and the curing agent component (B). In some stucco materials, the gelling time is strongly shortened by adding transition type alumina so that shrinkage measurement cannot be performed. In this case, the gelling time is extended by adding a higher share of the polymerization agent.
[0140] The crystal phase of the alumina used and the ordering source and the shrinkage of the stucco material prepared using alumina are given in Table 2.
[0141] Table 2: Alumina
[0142] Example Alumina Crystal phase supplier Shrink reduction ...
Embodiment 15 to 19
[0157] The stucco material was prepared in the same manner as shown in Example 1, wherein each of the respective volume of aluminate cement in the resin component (A) is used for transition type alumina Al Alumina Al 2 O 3 -Kno exchange. Therefore, the volume of the resin material is maintained constant. The polymerized shrinkage ratio was measured by a stucco material obtained by mixing resin components (a) and the curing agent component (B) in SpeedMixer. The results obtained were given in Table 4 below.
[0158] Table 4
[0159]
[0160] The results shown in Table 4 show that the polymer shrinkage ratio is significantly reduced from about 1 volume percentage of transition type alumina from a stucco material. In the case of a higher volume share from about 10%, the test material can be processed.
[0161] It is obvious from DSC measurement from the stucco material according to Example 16 that the addition of transition type alumina does not affect the reaction enthalpy, and do...
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