Adhesives for interior decoration
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When choosing home decoration, you must buy high-quality adhesive to eliminate home-clothes pollution
First, the classification of adhesive
Adhesives are mainly used for board bonding, wall pretreatment, wallpaper pasting, ceramic tiles, various floorings, carpet laying and bonding in the process of building decoration. There are many kinds of adhesives. Currently, the largest amount of adhesives used in the market of architectural decoration mainly include white latex, water-soluble polyvinyl alcohol construction adhesive (108 glue, 801 glue), rubber adhesive (neoprene rubber adhesive, SBS glue, all-purpose adhesive), polyurethane adhesive (PU glue) and so on. According to the solvent used and the appearance of different forms are divided into: water-based adhesives, solvent-based adhesives, and other adhesives; of which water-based adhesives mainly white latex and water-soluble polyvinyl alcohol construction adhesives, solvent-based adhesives are mainly rubber adhesives, Polyurethane adhesive.
Adhesives are materials that form a thin film between two solid surfaces and bind tightly together. There are many kinds of adhesives and there are many classification methods. Commonly used are:
1, according to chemical composition: can be divided into organic adhesives and inorganic adhesives. Organic adhesives are divided into synthetic adhesives and natural adhesives. Synthetic adhesives are resin type, rubber type, composite type, etc.; natural adhesives are animal, plant, mineral, natural rubber and other adhesives. Inorganic adhesives include chemical compounds such as phosphates, silicates, sulfates, borates, and many others.
2, according to the shape classification: can be divided into liquid adhesives and solid adhesives. There are solution type, emulsion type, paste, film, tape, powder, rubber particles, glue sticks and so on.
3, according to use classification: can be divided into structural adhesives, non-structural adhesives and special adhesives (such as high temperature, ultra-low temperature, conductive, thermal conductivity, magnetic, sealing, water glue, etc.) three categories.
4, according to the application methods: There are room temperature curing, thermosetting, hot melt, pressure sensitive, rewetting and other adhesives.
Second, buy adhesive notes
1, try to go to a certain amount of building materials supermarkets to buy adhesives, general large building materials supermarkets have a strict purchase system.
2. Brand-name products of famous enterprises should be used. These companies have a good quality management system and quality assurance.
3, should not use rough packaging, container shape is skewed, the use of instructions and other text printed fuzzy products.
4. Check the date of production indicated on the adhesive outer package. The quality of the adhesive after the storage period may decline.
5, if you open the barrel to see, the colloidal adhesive should be uniform, no stratification, no precipitation, open the container without pungent pungent odor.
6, pay attention to the use of product description and selection requirements are consistent.
Third, according to the standard (GB18580 (80-88) - 2001), the relevant material requirements for hazardous substances are:
Interior wall paint standard:
Hazardous volatiles VOC≤200g/L
Free formaldehyde≤0.1g/kg
Soluble lead ≤ 90mg/kg
Soluble chromium≤60mg/kg
Soluble cadmium≤75mg/kg
Soluble mercury ≤60mg/kg
Polyester paint standard:
Hazardous volatiles VOC (bright) ≤600g/L
Hazardous volatiles VOC (matt, semi-dumb) ≤ 700g/L
Benzene ≤ 0.5%
Toluene + xylene≤40%
Free TDL ≤ 0.7%
Soluble lead ≤ 90mg/kg
Soluble chromium≤60mg/kg
Soluble cadmium≤75mg/kg
Soluble mercury ≤ 60mg/kg In addition, according to the National "Construction of Indoor Pollution Control Standards for Civil Construction Projects", the standards for new house room enthalpy are <100BQ/m3, old houses are <200BQ/m3, formaldehyde ≤ 0.08mg/m3, benzene ≤ 0.09 Mg/m3, ammonia ≤ 0.2mg/m3, TVOC ≤ 0.5mg/m3, exceeding this limit will cause harm to the human body.
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