Polymer alloy and preparation thereof
A technology of polymer and alloy materials, which is applied in the field of polymer alloy and its preparation, can solve the problems of PC/PET alloy toughness, gas barrier property, solvent resistance and poor processing performance, and achieve widening application range, gas barrier property and Improved solvent resistance and improved processability
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[0026] The preparation method of the polymer alloy material provided by the present invention includes the use of PC, PET, inorganic additives in contact with the intercalating agent, as well as selectively containing lubricants and antioxidants to make polycarbonate and polyethylene terephthalate Mixing at a melting temperature, the inorganic additives are one or more of layered silicates, nano inorganic oxides, hydroxides, carbonates and sulfates; the intercalation agent includes a reactive intercalation Agent.
[0027] Based on 100 parts by weight of PC, the amount of PET is 30-70 parts by weight; the amount of inorganic additives in contact with the intercalant is 4-30 parts by weight; the amount of lubricant is 0-3 parts by weight , Preferably 0.5-2 parts by weight; the amount of antioxidant added is 0-3 parts by weight, preferably 0.5-2 parts by weight.
[0028] Preferably, the method of mixing PC, PET, inorganic additives that have been in contact with the intercalation age...
Embodiment 1
[0039] This example is used to illustrate the preparation of the PC / PET alloy of the present invention.
[0040] (1) Treatment of montmorillonite.
[0041] Reactive intercalant CH 3 -C 4 H 8 -C 2 H 2 -NH-C 4 H 8 -C 2 H 2 NH 3 Cl is made into ethanol solution with a mass fraction of 20%. Put montmorillonite (Zhejiang Fenghong, NANNOLIN DK4) into the solution, use 1.5 g of intercalant per 100 g of montmorillonite, stir and mix at high speed for 3 hours at 70°C. After solid-liquid separation, it was washed 3 times with ethanol (100 ml of ethanol per 100 g of solid product), separated at 100 revolutions / centre for 20 minutes, vacuum dried at 80°C for 2 hours, and then used. Then make the above product and non-reactive intercalant CH 3 (CH 2 ) 17 N(CH 3 ) 3 Cl effect. Firstly, the intercalation agent was prepared into an ethanol solution with a mass fraction of 20%, and 1 g intercalation agent was added for every 100 g of the above product, stirred at high speed to form a suspension,...
Embodiment 2
[0047] This example is used to illustrate the preparation of the PC / PET alloy of the present invention.
[0048] (1) Treatment of montmorillonite.
[0049] Reactive intercalant CH 3 -C 4 H 8 -C 2 H 2 -NH-C 4 H 8 -C 2 H 2 N(CH 3 )H 2 Cl is made into ethanol solution with a mass fraction of 20%. Put montmorillonite (Zhejiang Fenghong, NANNOLIN DK4) into the solution, use 2.5 grams of intercalant per 100 grams of montmorillonite, stir and mix at high speed at 70°C for 3 hours. After solid-liquid separation, it was washed 3 times with ethanol (100 ml of ethanol per 100 g of solid product), separated at 100 revolutions / centre for 20 minutes, vacuum dried at 80°C for 2 hours, and then used. Then make the above product and non-reactive intercalant CH 3 (CH 2 ) 11 N(CH 3 ) 3 The effect of a 20% ethanol solution prepared by Cl, 1.5 g of intercalating agent per 150 g of the above product, stirring at high speed to form a suspension, and acting at 70°C for 5.5 hours. After solid-liquid sepa...
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Abstract
Description
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