Production method of anti-ozone high-performance natural rubber
A technology of natural rubber and production method, which is applied in the production of ozone-resistant high-performance natural rubber and the field of natural rubber production, which can solve the problems of easy mold growth, intermingling, and thermal damage of non-glue substances in molecular chains, so as to maintain ozone resistance and The effect of high performance, low production cost and simple production process
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Embodiment 1
[0027] Take 1000Kg of fresh PRIM600 natural rubber latex with a dry rubber content of 28% and an ammonia content of 0.008% in the mixing tank, add protease and clear water that meets the standard to adjust the dry rubber content to 24%, and use 2% formic acid after calculation Dosage, add acid to the coagulation tank through parallel flow, the latex is mixed for 10 minutes to flocculate, and matured for 15 hours to form a coagulation without white water. The clot is thinned and dehydrated, washed, pressed into tablets (wherein: the thickness of the film is 7-9mm, and the nitrogen content is 0.20%), dried for 5 days (at a temperature of 60°C), granulated, and dried to obtain an ozone-resistant high-performance natural rubber product. Determine the quality index and performance of dry glue.
[0028] Quality index and performance: impurity content is 0.015%, plastic initial value P0 is 50, plastic retention rate PRI is 90%, ash content is 0.2%, nitrogen content is 0.20%, Mooney v...
Embodiment 2
[0030] Take 1000Kg of fresh PR107 natural rubber latex with a dry rubber content of 32% and an ammonia content of 0.006% in the mixing tank, add protease and clear water that meets the standard to adjust the dry rubber content to 24%, and use 2% formic acid after calculation Dosage, add acid to the coagulation tank through parallel flow, the latex is mixed for 8 minutes to flocculate, and matured for 15 hours to form a coagulation without white water. The clot was thinned and dehydrated, washed, pressed into tablets (wherein: film thickness 8-9mm, nitrogen content 0.25%), dried for 6 days (temperature 55°C), granulated, and dried to obtain high-performance natural rubber products. Quality indicators and properties of dry glue.
[0031] Quality index and performance: impurity content is 0.015%, plastic initial value P0 is 50, plastic retention rate PRI is 90%, nitrogen content is 0.25%, ash content is 0.18%, Mooney viscosity is 82 units; vulcanization time of pure rubber formul...
Embodiment 3
[0033] Take 1000Kg of fresh Reyan 7-33-97 natural rubber latex with a dry rubber content of 30% and an ammonia content of 0.005% in the mixing tank, add protease and clear water that meets the standard to adjust the dry rubber content to 22%. Concentration is the dosage of formic acid of 2%, add acid to coagulation tank through parallel flow, latex mixes 8 minutes to appear flocculation, aging 15 hours forms the coagulation without white water. The clot is subjected to thinning and dehydration, washing, granulation, tabletting (among them: film thickness 7-9mm, nitrogen content 0.18%), hanging sheet drying for 9 days (temperature 65°C), granulation, and drying to obtain high-performance natural rubber Products, determine the quality index and performance of dry glue.
[0034] Quality indicators and performance: impurity content is 0.013%, plastic initial value P0 is 50, plastic retention rate PRI is 92%, nitrogen content is 0.18%, ash content is 0.16%, Mooney viscosity is 80 u...
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