A kind of environment-friendlyadhesive adhesive silicate adhesive
Technical field
The invention belongs to technical field of adhesive, be specifically related to a kind of tackiness agent, particularly relate to a kind of environmental protection silicate adhesive.
Background technology
Usual tackiness agent is divided into organic type cementing agent and inorganic type cementing agent, wherein typical organic type tackiness agent is as resol, high owing to itself there is cohesive strength, water-fast, heat-resisting, wear-resisting and good chemical stability, because organic adhesion agent has superior adhesiveproperties, thus in a lot of fields in be used widely, as being applied to timber, plastics industry, but it is higher that it also exists cost, the shortcomings such as solidification value is high and grow set time, also there is temperature tolerance difference in most of organic adhesion agent simultaneously, large and the high in cost of production shortcoming of toxicity, limit its range of application.But inorganic adhesive raw material sources are wide, cheap, manufacture and easy construction day. range of application is comparatively wide, is day by day subject to people's attention.Current existing inorganic adhesive mainly contains silicate and phosphoric acid salt two large system, wherein phosphate adhesive non-refractory, and sizing material fragility is large, be not suitable for plane adhesion, therefore the application of silicate adhesive is more extensive.Silicate adhesive has the features such as bonding strength is relatively large, temperature tolerance is relatively better, has been widely used in pottery, glass, wrapping material, material of construction, metal and the various material such as nonmetal; But traditional silicate adhesive still exists that bonding strength is low, poor water resistance and the shortcoming such as condition of cure is high.
Summary of the invention
For the problem of above-mentioned silicate cement mixture; the object of this invention is the environmental protection silicate adhesive providing a kind of excellent property; this tackiness agent has that bonding strength is higher, water tolerance is better, thermotolerance is splendid, solidification value is lower and the more excellent feature of corrosionproof protection effect to steel, has a good application prospect.
The present invention is achieved through the following technical solutions: a kind of environmental protection silicate adhesive, is characterized in that, its component is made up of following weight:
Described silicate is water glass, potassium silicate, lithium silicate, ammonium silicate, and its formula of is M
2o.nSiO
2, wherein the value of n is 1.5 ~ 4.
Described softening agent is dioctyl phthalate (DOP) and dimixo-octyl phthalate, wherein any one.
Described tackifier are Walocel MT 20.000PV.
Described water-resisting agent is epoxy resin or hydroxyl silicono acid esters, wherein any one.
Described sanitas is p-hydroxybenzoic acid or aethyl parabenum, wherein any one.
Environmental protection silicate adhesive provided by the invention obtains through the following steps: take a certain amount of water glass, under 50 DEG C of constant temperatures, add butyl acrylate, polyacrylamide and silane coupling agent while stirring, be warming up to 60 ~ 70 DEG C, stir after 2 ~ 3h, add tackifier afterwards again, softening agent, water-resisting agent, sanitas obtain water white tackiness agent.
The present invention is under the prerequisite of not adding any mineral filler; using gas chromatography as properties-correcting agent; the silicate adhesive made has that bonding strength is higher, water tolerance is better, thermotolerance is splendid, solidification value is lower and the more excellent feature of corrosionproof protection effect; this environment-friendly adhesive is not containing objectionable constituent such as formaldehyde simultaneously; cost is low, belongs to environmentally friendly tackiness agent.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1: a kind of environmental protection silicate adhesive, by following batching:
Embodiment 2: a kind of environmental protection silicate adhesive, by following batching:
Embodiment 3: a kind of environmental protection silicate adhesive, by following batching:
Environmental protection silicate prepared by above-described embodiment realizes in the steps below: by batching described above, take quantitative silicate, under 50 DEG C of constant temperatures, add butyl acrylate, polyacrylamide and silane coupling agent while stirring, be warming up to 60 ~ 70 DEG C, after stirring 2 ~ 3h, add correspondingly tackifier, softening agent, water-resisting agent, sanitas afterwards again and obtain water white tackiness agent.