Silicate inorganic aqueous binder

A water-based adhesive and silicate technology, which is applied in the direction of inorganic adhesives, non-polymer adhesive additives, adhesives, etc., can solve the problems of harmful gas emissions, high price, poor water resistance, etc., and achieve improved water resistance , Optimize the effect of water resistance

Inactive Publication Date: 2014-09-03
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
The disadvantage of this is that a considerable amount of precipitated coagulation (that is, the coagulation produced in the water-based emulsified polymer) will be produced in the adhesive, which will make the stability and storage of the adhesive unsatisfactory, and at the same time lose its non-combustible performance and prevent fires. Emissions of harmful gases occur when
[0006] Sodium fluorosilicate or calcium fluoride can be used as a water-resistant enhancer in existing patents, and its efficacy is also described in relevant 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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  • Silicate inorganic aqueous binder
  • Silicate inorganic aqueous binder
  • Silicate inorganic aqueous binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Get liquid sodium silicate 37g (SiO 2 / Na 2 The molar ratio of O is 3.20), liquid potassium silicate 9g (SiO 2 / K 2 The molar ratio of O is 3.22), liquid lithium silicate 7g (SiO 2 / Li 2 The molar ratio of O is 5.1) and 2.5 g of deionized water added for improving the intercommunication between silicates, 6 g of silica sol (30% content of SiO 2 , average particle size 10nm). Put these substances into a mixer with a scraper and stir for more than 30 minutes to achieve uniform stirring. Slowly add 6.5 grams of 10% phosphoric acid aqueous solution with a powder-liquid funnel within 60 minutes, stir while adding, and then add 2 grams of ore The material fibers were stirred for 30 minutes to fully disperse to obtain an inorganic water-based adhesive. The mineral fiber used in this example is Lapinus702K2-Roxull000 (Lapinus Fibers, Netherlands).

Embodiment 2

[0056] Manufactured according to the preparation method of Example 1, the phosphoric acid aqueous solution in the acid hardening process is replaced by the formic acid water solvent diluted by 10%, and the other is unchanged, and the inorganic water-based adhesive is obtained.

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

[0058] Table 3 other embodiments and comparative examples

[0059]

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

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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 environment-friendly inorganic water-based adhesive with non-toxic and non-combustible properties. Background technique [0002] Generally speaking, adhesives made from inorganic silicates are water-based and environmentally friendly. The adhesive has a cost advantage due to low raw materials used, but has disadvantages such as poor water resistance and weak flexibility. For a long time, the application range of the adhesive is limited to cement composition, mortar, ceramics and other fields. [0003] In the field of industrial adhesives, adhesives made by diluting and modifying petrochemical resins and water into emulsified forms have always occupied a dominant position. However, in the manufacturing process of the above-mentioned petrochemical resin binder, in order to promote the evaporation of the solvent, it needs to be heated under relati...

Claims

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Application Information

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Patent Type & Authority Patents(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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