Background technology
In the middle of industrial enterprise, in the time relating to high temperature, need to carry out special treatment to corresponding device and equipment, in some high-temperature workshops, in order to prevent that equipment and device from going wrong under long-time withstand high temperatures, need to add one deck fabric and carry out high temperature resistant processing at device and device external, the fabric that is used for reaching this object need to possess good high-temperature resistant result, only possesses good high-temperature resistant result, after could effectively preventing from long-time high temperature, instrument occurs that surprisingly, the possibility of damage occurs for lowering apparatus and equipment.Coating covering is carried out in fabric top layer, normally promote the resistant to elevated temperatures a kind of effective means of fabric, but the composition situation of coating has very important effect to high-temperature resistant result.
Summary of the invention
The technical problem solving: the resistant to elevated temperatures effect of common hair terylene fabric is poor, the problem using under the environment of the withstand high temperatures of can not satisfying the demand.
Technical scheme: the invention discloses a kind of preparation method of resistant to elevated temperatures hair terylene fabric, comprise the following steps: (1) gets polyvinyl chloride is that 4~5 parts, low density polyethylene (LDPE) are that 2~4 parts, magnesium carbonate powder are that 2~3 parts, propyl alcohol are that 4~5 parts, phenolic resins are 4~7 parts; (2) will after polyvinyl chloride, low density polyethylene (LDPE), magnesium carbonate powder, propyl alcohol, phenolic resins heating, stir, preparation becomes the coating solution of mao terylene fabric, stand-by; (3) get a mao terylene fabric, wool weight is the 65wt%~70wt% of mao terylene fabric, and terylene weight is the 30wt%~35wt% of mao terylene fabric; (4) use scraper blade coating on the top layer up and down of hair terylene fabric liquid coating solution, the thickness of coating is 0.3mm~0.6mm; (5) scrape after coating layer, hair terylene fabric is heated to 2h at 70 ℃ after cooling drying.
Wherein, in the coating solution of preparation, polyvinyl chloride is preferably 5 parts.Wool weight is preferably the 65wt% of mao terylene fabric.The thickness of hair terylene fabric levels coating is preferably 0.6mm.Magnesium carbonate diameier is preferably 0.03mm~0.05mm.
Beneficial effect: the hair terylene fabric preparing by this method, the temperature that can tolerate reaches 160 ℃ to 180 ℃, and 20h to 30h is without performance variation in baking, has good high-temperature resistant result.
The specific embodiment
Embodiment 1
(1) getting polyvinyl chloride is that 4kg, low density polyethylene (LDPE) are that the magnesium carbonate powder that 2kg, diameter are 0.03mm is that 3kg, propyl alcohol are that 4kg, phenolic resins are 4kg; (2) will after polyvinyl chloride, low density polyethylene (LDPE), magnesium carbonate powder, propyl alcohol, phenolic resins heating, stir, preparation becomes the coating solution of mao terylene fabric, stand-by; (3) get a mao terylene fabric, wool weight is the 65wt% of mao terylene fabric, and terylene weight is the 35wt% of mao terylene fabric; (4) use scraper blade coating on the top layer up and down of hair terylene fabric liquid coating solution, the thickness of coating is 0.3mm; (5) scrape after coating layer, hair terylene fabric is heated to 2h at 70 ℃ after cooling drying.
Embodiment 2
(1) getting polyvinyl chloride is that 5kg, low density polyethylene (LDPE) are that the magnesium carbonate powder that 3kg, diameter are 0.04mm is that 2kg, propyl alcohol are that 4kg, phenolic resins are 6kg; (2) will after polyvinyl chloride, low density polyethylene (LDPE), magnesium carbonate powder, propyl alcohol, phenolic resins heating, stir, preparation becomes the coating solution of mao terylene fabric, stand-by; (3) get a mao terylene fabric, wool weight is the 67wt% of mao terylene fabric, and terylene weight is the 33wt% of mao terylene fabric; (4) use scraper blade coating on the top layer up and down of hair terylene fabric liquid coating solution, the thickness of coating is 0.4mm; (5) scrape after coating layer, hair terylene fabric is heated to 2h at 70 ℃ after cooling drying.
Embodiment 3
(1) getting polyvinyl chloride is that 4kg, low density polyethylene (LDPE) are that the magnesium carbonate powder that 4kg, diameter are 0.05mm is that 3kg, propyl alcohol are that 5kg, phenolic resins are 7kg; (2) will after polyvinyl chloride, low density polyethylene (LDPE), magnesium carbonate powder, propyl alcohol, phenolic resins heating, stir, preparation becomes the coating solution of mao terylene fabric, stand-by; (3) get a mao terylene fabric, wool weight is the 70wt% of mao terylene fabric, and terylene weight is the 30wt% of mao terylene fabric; (4) use scraper blade coating on the top layer up and down of hair terylene fabric liquid coating solution, the thickness of coating is 0.6mm; (5) scrape after coating layer, hair terylene fabric is heated to 2h at 70 ℃ after cooling drying.
Get the hair terylene fabric of embodiment 1, embodiment 2, embodiment 3, they are placed to 20h, 30h, 40h respectively in the baking oven of 160 ℃, 180 ℃, 200 ℃.The results are shown in following table.
? |
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
High temperature resistant situation |
After placing 20h at 160 ℃, hair terylene fabric is without performance variation |
After placing 30h at 180 ℃, hair terylene fabric is without performance variation |
After placing 40h at 200 ℃, hair terylene fabric has performance variation slightly, has the smell of burning to produce |
Resistant to elevated temperatures hair terylene fabric of the present invention has good high-temperature resistant result, can reach 160 ℃ to 180 ℃ by tolerable temperature, and the time that can tolerate can reach 30h, can be used as resistant to elevated temperatures fabric, for corresponding field.