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Hybrid toughened and high-filled rigid polyvinyl chloride product

A technology of rigid polyvinyl chloride and polyvinyl chloride, which is applied in the production of UPVC building boards and UPVC pipes, can solve the problems of high cost and unfavorable industrial continuous production, and achieve the effect of cost reduction, uniform and controllable wall thickness

Inactive Publication Date: 2015-04-22
HUBEI KINGBULL PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They can be found in CaCO 3 The performance of the product is guaranteed under the condition of high filling, but the cost of these solutions is high and it is not conducive to industrial continuous production

Method used

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  • Hybrid toughened and high-filled rigid polyvinyl chloride product
  • Hybrid toughened and high-filled rigid polyvinyl chloride product
  • Hybrid toughened and high-filled rigid polyvinyl chloride product

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0025] Prepare 110 type drainage pipes by a twin-screw extruder, wherein the instrument used is a SJSZ-65 type twin-screw PVC extruder, and its preparation process comprises the following steps:

[0026] (1) Carry out high-speed mixing of PVC and various processing aids according to the implementation formula of the present invention, after hot mixing to 135°C, cold mixing to 45°C;

[0027] (2) Put the homogeneously mixed material in step (1) into the feeder, ready for production test;

[0028] (3) Setting of production process parameters:

[0029] The feeding speed is 602.0~610.5 r / min, the main engine speed is 904~960 r / min, the main engine torque is 40~42 A, the traction speed is 493.6 cm / min, and the temperatures in the four zones of the twin-screw extruder are: 1 Zone 185~187℃, Zone 2 190~194℃, Zone 3 165~168℃, Zone 4 158~160℃. The temperature of the six zones of the die head of the main machine are: zone 1 and zone 2 160~165°C, zone 3 and zone 4 165~170°C, zone 5 and z...

Embodiment 2

[0032] Weigh 6 parts by weight (weight, the same below) of 6318 type stabilizer, 0.2 parts by weight of HBX-800J type processing aid, 5 parts by weight of Jinhong 135A type chlorinated polyethylene, and 2 parts by weight of Wuhan Zhonglian polyvinyl chloride copolymer , equipped with a small material bag; then weigh 100 parts by weight of SG-5 type PVC and 70 parts by weight of Zhongyuan calcium powder. According to the above preparation process, the materials were mixed, and then the PVC-U 110 type drainage pipe was prepared through the SJSZ-65 type twin-screw PVC extruder. Then select samples for density, tensile, drop impact, dichloromethane, Vicat softening temperature and other tests.

[0033] Table 1 Example 2 test results

[0034]

Embodiment 3

[0036] Weigh 6 parts by weight (weight, the same below) of 6318 type stabilizer, 0.2 parts by weight of HBX-800J type processing aid, 3 parts by weight of this modifier, 2 parts by weight of Wuhan Zhonglian polyvinyl chloride copolymer, equipped with small materials bag; then weigh 100 parts by weight of SG-5 type PVC, and 70 parts by weight of Zhongyuan calcium powder. According to the above preparation process, the materials were mixed, and then the PVC-U 110 type drainage pipe was prepared through the SJSZ-65 type twin-screw PVC extruder. Then select samples for density, tensile, drop impact, dichloromethane, Vicat softening temperature and other tests.

[0037] Table 2 Example 3 test results

[0038]

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Abstract

The invention provides a hybrid toughened and high-filled rigid polyvinyl chloride product. The hybrid toughened and high-filled rigid polyvinyl chloride product is characterized by comprising the following raw materials in parts by weight: 100 parts of polyvinyl chloride (SG-5 PVC), 2-5 parts of an assistant bag, 3-8 parts of a stabilizer, 60-120 parts of calcium carbonate, 4-6 parts of chlorinated polyethylene, 2-5 parts of polyvinyl chloride co-polymers and 1-10 parts of a modifier. The hybrid toughened and high-filled rigid polyvinyl chloride product disclosed by the invention has the advantages of relatively high calcium carbonate filling content, excellent mechanical property and heat performance, uniform and controllable thickness and the like; and meanwhile, the cost of the raw materials is also reduced.

Description

technical field [0001] The invention is a high-filling rigid polyvinyl chloride product that can be prepared, and particularly relates to the production of UPVC building boards and UPVC pipes. Background technique [0002] Polyvinyl chloride is a widely used plastic and is the second most produced resin in the world, second only to polyethylene. In recent years, with the development of processing equipment and various additives, there are more and more rigid PVC products. Especially since 1998, chemical building materials have been widely used in the field of construction, such as PVC plastic steel doors and windows for construction, UPVC pipes for construction, etc. [0003] In order to reduce the cost of products and gain a price advantage, the common method today is to fill a large amount of CaCO in the process of PVC processing. 3 . But PVC resin and CaCO 3 Poor compatibility, holes and new stress concentration points are generated on their bonding surfaces, thereby ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/28C08K3/26
CPCC08L27/06C08L2201/08C08L2203/18C08L2205/025C08L2205/035
Inventor 陈厚忠
Owner HUBEI KINGBULL PIPE IND
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