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Special PVC (polyvinyl chloride) valve injection molding aggregate for drip irrigation and preparation method thereof

A technology for injection molding pellets and valves, which is applied in the field of injection molding pellets and its preparation for PVC valves for drip irrigation, and can solve problems such as affecting service life, damage, and poor rigidity

Inactive Publication Date: 2021-06-08
XINJIANG ZHONGTAI CHEM FUKANG ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the drip irrigation valve with PE and PVCSG8 as the main body has good fluidity, but the cost is high
At the same time, as the material of the valve shell and valve core, during use, due to poor rigidity, it is often damaged by external force grinding, which affects the service life

Method used

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  • Special PVC (polyvinyl chloride) valve injection molding aggregate for drip irrigation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: The special PVC valve injection molding pellets for drip irrigation, the raw materials are calculated in parts by weight, including 35 to 45 parts of general resin SG8 type resin, 35 to 50 parts of SG5 type resin for sweeping material, and 3 to 5 parts of plasticizer , 1 to 2 parts of processing aids, 3 to 5 parts of stabilizers, 1 to 2 parts of lubricants, 10 to 20 parts of fillers, 0.02 to 0.2 parts of light stabilizers, 0.02 to 0.1 parts of toner Parts, prepared according to the following steps: the first step, the required amount of general resin SG8 type resin, sweeping material SG5 type resin, plasticizer, processing aids, stabilizers, lubricants, fillers, light stabilizers Add toner and toner into the high-speed mixer, raise the temperature to 105°C to 120°C, and perform high-speed mixing to obtain the first mixed material; in the second step, send the first mixed material to the low-speed cold mixing pot, and cool the material to 30 ℃ to 45 ℃, the ...

Embodiment 2

[0018] Embodiment 2: The special PVC valve injection molding pellets for drip irrigation, the raw materials are calculated in parts by weight, including 35 or 45 parts of general-purpose resin SG8 type resin, 35 parts or 50 parts of floor sweeping material SG5 type resin, and 3 parts or 5 parts of plasticizer , 1 or 2 parts of processing aids, 3 or 5 parts of stabilizers, 1 or 2 parts of lubricants, 10 or 20 parts of fillers, 0. or 0.2 parts of light stabilizers, 0.02 or 0.1 parts of toner Parts, prepared according to the following steps: the first step, the required amount of general resin SG8 type resin, sweeping material SG5 type resin, plasticizer, processing aids, stabilizers, lubricants, fillers, light stabilizers Add toner and toner into the high-speed mixer, heat up to 105°C or 120°C, and perform high-speed mixing to obtain the first mixed material; in the second step, send the first mixed material to the low-speed cold mixing pot, and cool the material to 30 °C or 45 ...

Embodiment 3

[0020] Embodiment 3: As an optimization of the above embodiment, in the first step, the rotating speed is 1500rpm to 2000rpm during high-speed mixing.

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PUM

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Abstract

The invention relates to the technical field of agricultural drip irrigation water delivery materials, in particular to a special PVC (polyvinyl chloride) valve injection molding aggregate for drip irrigation and a preparation method thereof. The special PVC valve injection molding aggregate comprise general resin SG8 type resin, floor sweeping material SG5 type resin, a plasticizer, a processing aid, a stabilizer, a lubricant, a filler, a light stabilizer and toner. The preparation method comprises the following steps: adding the general resin SG8 type resin, the floor sweeping material SG5 type resin, the plasticizer, the processing aid, the stabilizer, the lubricant, the filler, the light stabilizer and the toner into a high-speed mixer, performing heating, performing mixing at a high speed to obtain a first mixed material, feeding the first mixed material into a low-speed cold mixing pot, performing cooling and discharging, feeding discharged material into an extruder, and performing extruding and granulating to obtain the special PVC valve injection molding aggregate for drip irrigation. According to the present invention, the formula is stable, the obtained product has advantages of strong fluidity, good particle color degree, strong rigidity, high toughness, corrosion resistance and the like, and the preparation method is simple, and can be widely used for injection molding production of agricultural drip irrigation plastic valve parts.

Description

technical field [0001] The invention relates to the technical field of drip irrigation and water delivery materials for agricultural use, and relates to a special PVC valve injection molding pellet for drip irrigation and a preparation method thereof. Background technique [0002] The existing special materials for agricultural drip irrigation valves mainly use PE and PVCSG8 resin as the main material, and these two materials have good injection molding performance. Among them, the drip irrigation valve with PE and PVCSG8 as the main body has good fluidity, but the cost is high. At the same time, as the material of the valve shell and valve core is used, due to its poor rigidity, it is often damaged by external force grinding, which affects the service life. General-purpose SG5 resin has higher mechanical properties than SG8 resin. Adding SG5 resin to the system will enhance the mechanical properties of the resin, and adding high-polymerization resin will increase the melt ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06
CPCC08L27/06C08L2205/025
Inventor 杨秀玲唐湘军袁世财张德龙杨松赵国斌张治宁王邦善鲁海宇彭俊龙闫新栋周磊磊
Owner XINJIANG ZHONGTAI CHEM FUKANG ENERGY CO LTD