Silk latex quilt and preparation method thereof
A silk and latex technology, applied in the field of silk latex quilts, can solve problems such as waste of resources, inability to apply machine washing, and inability to effectively use silk slag, and achieve the effect of improving mechanical properties
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preparation example
[0031] Mix and wash the silk and silk leftovers according to the weight ratio of 1:1. Get 100g of silk raw material, drop into 150mL of .5wt.% sodium carbonate aqueous solution, stir at 110°C for 25min, filter to remove insolubles, put the filtrate into 1.55L of 40wt.% calcium chloride:ethanol=1:2 In the mixed solution of volume ratio, it was processed at 50° C. for 60 minutes overtime, and filtered to obtain the fibroin filtrate from which sericin was removed.
[0032] Concentrate the fibroin filtrate under reduced pressure until the fibroin content is 7.5wt.%, then use hydrochloric acid to adjust the pH of the system to 7.5, add 32g of alkaline protease, stir at 55°C for 120min, put in excess activated carbon, and stir again , filtered after standing to obtain silk hydrolyzate.
Embodiment 1
[0034] 100kg of natural latex concentrate (solid content ≥ 60%), 15kg of silk hydrolyzate prepared in Example 1, 0.2kg of OP-10, 1kg of sulfur, and 1.2kg of vulcanization accelerator M are dropped into the mixing kettle, mixed evenly, and then dropped into The amount of anti-aging agent, pigment and inorganic filler is appropriate, and the mixed material liquid is cast into a flat cuboid mold, sent to an oven for vulcanization at 120°C for 8 minutes, and the latex silk quilt is obtained after demoulding.
Embodiment 2
[0036] Add water to the redispersible natural latex powder to prepare natural latex liquid with a solid content of 75wt.%. Take 100kg and mix it with 20kg of the silk hydrolyzate prepared in Example 1. When mixing, add 0.2kg of Span-60.2kg, 1.2kg of sulfur, and two Add 1.1kg of zinc ethyl dithiocarbamate, and then put in appropriate amount of anti-aging agent, pigment and antibacterial agent, and mix well to form the impregnation solution.
[0037] Soak the cotton cloth in the aforementioned soaking liquid, stack 5 layers of soaked cotton cloth, heat-press at 80°C for 20s, cut the edge, send it to a flat vulcanizer, and heat-press at 95°C for 30 minutes to obtain a latex silk quilt.
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