Polyethylene/nylon plastic alloy and production method thereof and compatible binder thereof
A technology of nylon plastic and production method, applied in the field of polyethylene/nylon plastic alloy and its related production method and compatible binder, to achieve the effect of improving water absorption and low cost
Active Publication Date: 2011-08-17
NINGBO NENGZHIGUANG NEW MATERIALS TECH
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Problems solved by technology
[0009] Another technical problem to be solved by the present invention is to provide a compatible binder, which solves the problem of PE / PA interfacial bonding, has good compatibility and makes PE-PA easier to mix
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[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0053] Implementation Example 1
[0054] A low-cost high-performance polyethylene / nylon plastic alloy and its production method, the steps are as follows:
[0055] (1) Preparation of PE-PA compatible binder:
[0056] The configuration of the mixed solution: 2 parts: 0.1 part: 0.2 parts Weigh maleic anhydride (MAH), vulcanizing agent bis-2-5 (DTBH), grafted second monomer caprolactam (CALA), at 60 ~ 70 ° C Stir well, then add about 30 parts of diluent, stir well and cool to room temperature to make a mixed solution;
[0057] Preparation of PE-PA compatible binder: mix high-density polyethylene (HDPE), polypropylene (PP) and the mixture thoroughly according to the ratio of 90:10:15, and mix them uniformly at 150-190°C (the specific temperature control is 150 , 160, 170, 180, 190 ° C) with a twin-screw extruder for reactive extrusion granulati...
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The invention relates to a polythene / nylon plastic alloy, a production method and a compatible binder thereof. The production method comprises the following steps: (1) preparing PE-PA compatible binder, that is, preparing mixed solution firstly, namely weighing maleic anhydride, vulcanizing agent DMDBH and grafted second monomer caprolactam according to the proportion, stirring the mixture evenly, then adding diluting agent, stirring the mixture evenly and cooling the mixture to normal temperature to obtain the mixed solution; and then preparing the PE-PA compatible binder, namely after fullymixing high-density polythene, polypropylene and the mixed solution evenly according to the mixture ratio, using a double-screw extruder to carry out reaction extrusion and granulation, so as to obtain the PE-PA compatible binder; and (2) preparing polythene / nylon plastic alloy with low cost and high performance according to an alloy proportion; after mixing evenly the PE-PA compatible binder, the high-density polythene, nylon 66, a dispersant, an antioxidant and a processing assistant, carrying out extrusion and granulation on the mixture by a double-screw extrusion granulating machine, and introducing measured glass fiber subjected to surface treatment in the machining process to obtain HDPE / PA66 / GF alloy granules. The polythene / nylon plastic alloy has high performance, low price, and basically can replace pure PA6.
Description
technical field [0001] The invention relates to the field of a polyethylene / nylon plastic alloy, a related production method and a compatible binder. Background technique [0002] Nylon PA has the advantages of toughness, wear resistance, oil resistance and chemical stability. And so on, it is the one with the most application fields and sales among the five major engineering plastics. However, the disadvantages are that the general grade of nylon PA has a large water absorption rate, and the difference in dry and wet properties varies greatly, especially in low temperature environments. The impact strength is low, and the notch sensitivity is strong, and the dimensional stability is poor. In order to meet the application, a variety of new composite varieties have been developed at home and abroad, such as reinforced PA, toughened PA, flame-retardant PA and alloy series. As far as the alloy system is concerned, PA is the main body and general-purpose resin is the auxiliary...
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IPC IPC(8): C08L77/06C08K5/20C08L23/06B29B9/12C08K7/14C08K5/09B29C47/40C08K5/524
Inventor 张发饶
Owner NINGBO NENGZHIGUANG NEW MATERIALS TECH