Grouting material and preparation method thereof
A grouting material and raw material technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problem of uncontrollable curing time at room temperature, poor fluidity, mechanical properties (tensile strength and bonding performance (low tear strength). and other problems, to achieve the effect of good bonding performance and process performance, good fluidity, and adjustable curing time
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Embodiment 1
[0020] Example 1: 100 g of hydroxyl-terminated polybutadiene (the hydroxyl group is 0.45*10 -4 mol / g), glycerin 4.5g, filler 30g, catalyst 0.1g and curing agent 17g.
Embodiment 2
[0021] Embodiment 2: 100g of hydroxyl-terminated polybutadiene (the hydroxyl group is 0.45*10 -4 mol / g), glycerin 3g, filler 30g, catalyst 0.3g and curing agent 11.6g.
Embodiment 3
[0022] Embodiment 3: 100g of hydroxyl-terminated polybutadiene (the hydroxyl group is 0.45*10 -4 mol / g), glycerin 6g, filler 30g, catalyst 0.5g and curing agent 24.8g.
[0023] The corresponding relationship between the dosage of the catalyst and the complete curing time is: 0.1 part, the curing time is 7 days, 20~25 ℃; 0.3 part, the curing time is 4 days, 20~25 ℃; 0.5 part, the curing time is 2 days, 20~25 25°C.
[0024] The concrete preparation method of above-mentioned grouting material is as follows:
[0025] (1) Raw material preparation
[0026] a) The raw materials of each component are inspected before use, and the raw materials are required to have a certificate of conformity and be used within the validity period of the verification;
[0027] b) The filler must be sieved through a 120-mesh copper screen before use, and the zinc oxide is evenly sieved without agglomeration; remove impurities;
[0028] c) Put the sieved filler into the oven for drying, and dry it fo...
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