Pipe orifice hole sealing material and preparation method thereof, and sealing method
A technology of sealing materials and holes, which is applied in the field of materials, can solve problems such as difficulty in demolition, weakening of stress, loss of sealing effect, etc., and achieve the effect of simplifying construction operations and reducing volume
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preparation example Construction
[0069] In this embodiment, optionally, the preparation method of component A includes:
[0070] Add polymer polyol, cell opening aid, water, flame retardant, and catalyst into the mixing equipment and mix evenly to obtain the first mixture;
[0071] Add the first mix to a pressurized vessel with liquid carbon dioxide and mix to obtain the A component.
[0072] During specific implementation, polymer polyols, cell opening aids, water, flame retardants, and catalysts are added to the mixing equipment and stirred at a stirring speed of 400 to 800 R / min to obtain the first mixed material, and then the first mixed material Add it into a pressurized container filled with liquid carbon dioxide, pressurize the pressurized container, and keep the pressure in the pressurized container at 4-6 MPa to obtain component A. Another convenience, the specific method to realize the thorough mixing of component A, also includes: when it is necessary to spray component A, at the outlet of the pre...
preparation example 1
[0079] Preparation example 1 (feeding is carried out by specific quality)
[0080] With hydroxyl value 33mgKOH / g, number average molecular weight is the polyoxypropylene triol 60g of 4800, stearoxy dimethyl silane 2g, water 1g, three (2-chloropropyl) phosphate 25g, stannous octoate 3g Add it into the mixing equipment, stir at a stirring speed of 600R / min, make it mix evenly, and obtain the first mixed material;
[0081] Add the obtained first mixed material into a pressurized container containing 9 g of liquid carbon dioxide, continue to pressurize to 5 MPa, and mix to obtain A component No. 1.
preparation example 2
[0082] Preparation example 2 (feeding is carried out by weight percentage)
[0083] Polyether polyol 330N (manufacturer: Shandong Dongda Yi Nuowei) 66.3%, cell opening additive Y1900 (manufacturer: Korea SKC Company) 1%, water (self-made), flame retardant dmmp (manufacturer Qingdao Lianmei Chemical) 20%, catalyst A33 (manufacturer: Xindian Chemical Materials (Shanghai) Co., Ltd.) 1.5%, stannous octoate (manufacturer: Xindian Chemical Materials (Shanghai) Co., Ltd.) 0.2%, add in the mixing equipment, with 400R / min Stir at a stirring speed to make it evenly mixed to obtain the first mixed material;
[0084] Add the obtained first mixture into a pressurized container filled with 10% liquid carbon dioxide (manufacturer: Langfang Liming Gas Co., Ltd.), continue to pressurize to 4MPa, and mix to obtain A component No. 2.
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