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Core-shell structured ACR (Acrylate) latex, modified resin powder material and preparation methods thereof

A core-shell structure and latex technology, applied in the field of resin, can solve the problems of sticking, impact strength, tensile strength, micro-calorie softening temperature, poor whiteness change rate, high production cost, and high production cost in the production process, so as to improve the thermal deformation ability. , heat deformation temperature and UV aging resistance, and the effect of reducing production costs

Active Publication Date: 2015-06-10
XINJIANG ZHONGTAI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a core-shell structure ACR latex, a modified resin powder and a preparation method thereof, which overcomes the deficiencies of the prior art and can effectively solve the notch impact of the existing modified PVC products obtained through composite particle latex Poor strength, tensile strength, micro card softening temperature and whiteness change rate, high production cost and serious problems of sticking in the production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, the core-shell structure ACR latex, the raw materials include 100 parts by weight of deionized water, 35 to 50 parts of the core layer comonomer, 10 to 20 parts of the shell layer polymer latex, and 0.3 parts of the reaction initiator to 1.0 parts, 0.2 to 2.0 parts of the core layer emulsifier, and 0.1 to 1.0 parts of the crosslinking agent.

Embodiment 2

[0027] Embodiment 2, the core-shell structure ACR latex, the raw materials include 100 parts by weight of deionized water, 35 parts or 50 parts of the core layer comonomer, 10 parts or 20 parts of the shell layer polymer latex, and 0.3 parts of the reaction initiator Or 1.0 parts, 0.2 or 2.0 parts of the core layer emulsifier, 0.1 or 1.0 parts of the crosslinking agent.

Embodiment 3

[0028] Embodiment 3, the core-shell structure ACR latex is obtained by the following preparation method: the first step, add 40% to 60% of the deionized water quality and 30% of the core layer emulsifier quality in the pre-emulsification kettle to 50% of the core layer emulsifier and mix evenly, add the required amount of core layer comonomer and cross-linking agent, stir and emulsify for 30min to 60min to obtain a pre-emulsion; the second step, add the remaining Ionized water and the remaining core layer emulsifier are mixed evenly, the temperature is raised to 82°C to 84°C, and the required amount of shell polymer latex and the required amount of reaction initiator are sequentially added at a temperature of 82°C to 84°C, Then drop the pre-emulsion obtained in the first step into the polymerization tank. The time for adding the pre-emulsion is 2h to 4h. After the pre-emulsion is added dropwise, keep the temperature at 75°C to 85°C for 1h to 2h; Three steps, after heat preserv...

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Abstract

The invention relates to the technical field of resin and discloses core-shell structured ACR (Acrylate) latex, a modified resin powder material and preparation methods thereof. The core-shell structured ACR latex is prepared from the following raw materials in parts by weight: deionized water, a core-layer comonomer, shell-layer polymer latex, a reaction initiator, a core-layer emulsifier and a cross-linking agent. The modified resin powder material disclosed by the method has the advantages that the notched impact strength, the thermal deformation resisting temperature and the ultraviolet aging resistance are better than those of the high-impact-resistance PVC (Polyvinyl Chloride) in the prior art, the production cost is reduced, and the problems of reactor sticking and coarse particles of the existing modified PVC production processes are solved; by using the PVC reinforcing action of a nano effect, the weather resistance and thermal deformation resistance of the PVC are further improved while the anti-impact modification of the PVC is improved.

Description

technical field [0001] The invention relates to the technical field of resins, and relates to ACR latex with a core-shell structure, modified resin powder and a preparation method thereof. Background technique [0002] Because of its low price, excellent chemical resistance, unique flame retardant properties and excellent mechanical properties, PVC is widely used in various fields of the national economy, and its output is second only to polyethylene as the second largest plastic resin variety. The important defects of PVC are poor price performance and poor impact resistance. Therefore, around the above shortcomings of PVC, many special modifiers related to PVC have been developed. The modification of PVC has become a specialized research field, and the most studied ones have been in What is constantly being studied is PVC processing modification and impact modification. At present, the most used and most successful method is to prepare the emulsion with the core layer as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F220/18C08F220/14C08F222/14C08F218/18C08F2/26C08F2/30C08F2/24C08F285/00C08F214/06C08F2/20C08F2/42C08L51/00
Inventor 王雅玲赵永禄黄胜兵张作岐寇红叶周菊
Owner XINJIANG ZHONGTAI CHEM CO LTD
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