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A polyethylene pipe and composition technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., to achieve the effect of excellent antistatic and flame retardant properties
Active Publication Date: 2009-01-14
福建恒杰塑业新材料有限公司
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It is used to solve two problems. On the one hand, it solves the antistatic and flame-resistant perf
Method used
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preparation example Construction
[0040] The pipe preparation method of the present invention includes the following steps: adding polyethylene and antistatic and flame-resistant functional masterbatch raw materials or adding non-essential components such as: antioxidants, ultraviolet light stabilizers, processing aids, these raw materials are added Extruder, after plasticizing and extruding, vacuum cooling and shaping, after cooling, it can be cut to length.
[0041] In the pipe preparation example of the present invention, the following processing parameters are used to manufacture pipes:
[0042] Processing temperature: 180-220℃
[0043] Host speed: 75-85rpm
[0044] Cooling water temperature: 28-20°C
[0045] Host torque: 65-70%
[0046] Melt pressure: 25-28Mpa
[0047] Output: 550-620Kg / h
[0048] In the present invention, the cooling water used is preferably soft water, and the temperature of the cooling water has a gradient distribution of decreasing temperature. In the example of the present inve...
example 1
[0080] An example recipe is:
[0081] i) 89 parts by weight of polyethylene; ii) 11 parts by weight of antistatic and flame retardant functional masterbatch;
example 2
[0083] An example recipe is:
[0084] i) 82 parts by weight of polyethylene; ii) 16 parts by weight of antistatic flame retardant functional masterbatch iii) 1 part by weight of antioxidant 2,4,6-tri-tert-butylphenol; iv) 2-hydroxyl-4- Methoxy-5-sulfobenzophenone; v) 0.5 parts by weight of oxidized polyvinyl ether.
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Abstract
The invention discloses a mining polyethylene tubing combination made from masterbatch with antistatic and flame-resistant functions. According to 100 weight parts, the mining polyethylene tubing combination comprises the followings: firstly, the polyethylene which occupies 81 weight parts to 92 weight parts, the high density polyethylene is ethylene homopolymer, the polymerization degree of the high density polyethylene is 8800 to 9000, the number-average molecular weight is 80000 to 90000, and the weight-average molecular weight is 300000 to 320000; secondly, the masterbatch with antistatic and flame-resistant functions occupies 9 weight parts to 20 weight parts. The masterbatch with antistatic and flame-resistant functions is composed of: firstly, 20 weight parts to 35 weight parts of high density polyethylene; secondly, 9 weight parts to 20 weight parts of conductive carbon black; thirdly, 4 weight parts to 7 weight parts of deca-brominated diphenyl ether; fourthly, 1 weight parts to 4 weight parts of antimony trioxide; fifthly, 0.5 weight parts to 1 weight part of one-phenyl two-isooctyl phosphite; sixthly, 40 weight parts to 60 weight parts of calcium carbonate. The mining polyethylene tubing combination solves the problems of antistatic and flame-resistant performances of the polyethylene tubing, and the compatibility performance between the masterbatch and the polyvinyl resin is improved.
Description
Technical field: [0001] The invention relates to an antistatic and flame-resistant functional master batch and a pipe made by adding the master batch. Background technique: [0002] With the rapid development of social economy, due to its superior processing performance and physical properties, the application and demand of plastic pipes in various social fields are increasing rapidly, and people's requirements for pipe performance are getting higher and higher. Therefore, the development of plastic pipes for The research on the functional masterbatch of plastic pipes, which makes plastic pipes have various special properties and reduces costs, has become an important technical issue facing the plastics industry. [0003] At present, the metal pipe products used for underground water supply and drainage pipes in coal mines, positive pressure air in coal mines, spraying pipes, negative pressure air in coal mines, and gas drainage pipes have poor corrosion resistance and are p...
Claims
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