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Silicate inorganic aqueous binder

A water-based adhesive, silicate technology, applied in inorganic adhesives, non-polymer adhesive additives, adhesives, etc., can solve the problems of high price, waste, poor use effect, etc., to optimize water resistance , the effect of improving water resistance

Inactive Publication Date: 2013-10-02
苏州绿科环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only requires high investment in production equipment, but also causes environmental pollution, and cannot fundamentally solve the problem, so it is difficult to implement mass production
[0005] At present, the problems existing in the patented products of inorganic adhesives are: (1) The drying and hardening of the adhesive is slow, and the initial water resistance is poor
(3) Most petrochemical adhesives are two-component and two-component. The two-component adhesive mixed in the actual on-site operation should be used up as soon as possible due to the short time of hardening, which will not only cause waste, but also be discarded. It is also troublesome to deal with
[0006] Sodium fluorosilicate or calcium fluoride can be used as a water-resistant enhancer in existing patents, and its efficacy is also described in related literature, but this substance is not easy to dissolve in silicate mixtures, and its use effect is not good And the price is relatively high, it is not suitable for mass production at this level

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Take 37g of liquid sodium silicate (SiO 2 / Na 2 The molar ratio of O is 3.20), liquid potassium silicate 9g: SiO 2 / K 2 O molar ratio 3.22), liquid lithium silicate 7g (SiO 2 / Li 2 The molar ratio of O 5.1) and 2.5g of deionized water added to improve the interoperability between silicates, 6g of silica sol (30% content of SiO 2 , The average particle size is 10nm). Put these substances into a stirrer with a spatula and stir for more than 30 minutes to achieve uniform mixing. Add 6.5 grams of 10% phosphoric acid aqueous solution in a powder-liquid funnel slowly within 60 minutes, stir while adding, and then add 2 g of ore The material fibers are stirred for 30 minutes and then fully dispersed to obtain an inorganic water-based adhesive. The mineral fiber used in this example is Lapinus702K2-Roxu11000 (Lapinus Fiber Company, The Netherlands).

Embodiment 2

[0056] Manufactured according to the manufacturing method of Example 1, the phosphoric acid aqueous solution in the acid hardening process was replaced by formic acid water solvent diluted by 10%, and the others remained unchanged to prepare an inorganic water-based adhesive.

[0057] Other examples and comparative examples are shown in Table 3.

[0058] Table 3 Other Examples and Comparative Examples

[0059]

[0060] As shown in Table 3, inorganic water-based adhesives using inorganic surfactants will not affect antibacterial, anti-mildew and other functions. The functional mineral raw materials used and the structure that is hardened by hydration reaction improve (ensure) the water resistance of the adhesive. The adhesive of the invention has heat resistance stability, which is different from the existing water-based adhesives.

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Abstract

The invention discloses a silicate inorganic aqueous binder. The silicate inorganic aqueous binder is obtained by mixing 32-42 mass parts of liquid sodium silicate, 5-13 mass parts of liquid potassium silicate, 5-7 mass parts of silica sol, 2-3 mass parts of deionized water, 5-9 mass parts of liquid lithium silicate, and 5-8 mass parts of an inorganic acid. The inorganic acid is a phosphoric acid solution having the content of 10% or a formic acid solution having the content of 10%. The silicate inorganic aqueous binder is environmentally friendly, non-combustible and non-toxic. The silicate inorganic aqueous binder has optimized and improved water resistance, stability and endurance.

Description

Technical field [0001] The invention relates to a silicate-based inorganic water-based adhesive, in particular to a silicate-based environmentally-friendly inorganic water-based adhesive with non-toxic and non-flammable properties. Background technique [0002] Generally speaking, the adhesive made from inorganic silicate is water-based and environmentally friendly. The adhesive has a cost advantage due to low raw materials, but has weaknesses such as poor water resistance and weak flexibility. For a long time, the scope of application of the adhesive has been limited to cement composition, mortar, ceramics and other fields. [0003] In the field of industrial adhesives, adhesives made by diluting petrochemical resins and water into an emulsified form have always been dominant. However, in the production process of the above-mentioned petrochemical resin adhesive, in order to promote the evaporation of the solvent, it needs to be heated at a relatively high temperature, which lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/02C09J11/04
Inventor 申澈浩潘玉堂
Owner 苏州绿科环保新材料有限公司
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